105. Report of tests on Great Western Irrigation Meter

ORT R T (L:,rtran co OF on rn OF nRr .

Ttm:

ublic ... oads Chief * TESTS IF IG '~I ~eter 1233) d ct d

olin A. T 7/lor nd i. L. tockwell, Jr. Jun1or Irri .ution ~neinaers

under t .... direction of

Ral L. rshall I:rri~ation ·, ngineer iydraulio Laboratory

Fort Collins, Colo.

Prcnared urAer the Dir ction of Saru 1 Fortier ssoo1 to Chief, n1 v. of gr • ....:nf!i e ring

· s d o gat:hered nder co- . ativo a "1'" ercr.t het e.

t e :ur a11 of bl1c Ro d , u.~ .-r:ent. of gricult !?1

... nd t ·, ,o lorado gria 11 tur· 1 pt. Station eoe~bEr, 1 9 2 4

OJ GR~ ' .... :~ST RJ I

r

G ",I i et r ~o. 1 2 3 3 }

b-,r

Colin A. ravlor ****** ... ·eter ~o. 123~ nas r ceiveu fr ~ tl

0 -:1 n ' c lifo rnia, fbr t (' pu 0 s of t sting its ao~ur~cy. 1_l!l.is

rn ter i ve~' si il'r in d·si~ o Jeter o. 1

oo.

tested in co b , 192,.), b~ t1 is

r t .. r /o. 1233 is d si wned to oner· te und r Slbn,er.e conditions h: ()1nre·"tion ·ith t_ orifice n·vint an

rea ne foo s~ r • tl ooeff1ci nt of discharg~ for th orifice b in t k n as 0,64. the flo indi au tor is sunnosod to turn on oo nl t r volution for each 16.0158 oubie-f et of

,

ter ssi

ncr.

""he vo lu oi~ ;uter 1! .. s ir the: orif1c- i r ister d by the tcr i orn-toet. and t1 n !l tit~ pu.ssin€! ::...t

r..y arti 1 r tit·€ rray et in fro .... ·1-~ ... im · cator.

·rll

.

r;. ter is in9t 11 near t orif1ee in 0lCh a rrar.n r that the sa f ectiv.., 11ea 1:.> onerat1v on bot the tr t r and th or fie •

} o meal ni n: i 011 r te 1>· a t 1r ina located in tl1 lo -er oust n of tl e

n: t ri ~ci le on i cJ."I th rr .. t o. rates i~ t.ut the rot tion o~ t e t-~rbin, 1 a rune ion of tb eff·oti e ead. ,he tu~ inc is ge re by r.eans of or. and. inion to th flo -tndi cater shaft. y ~e- s of other ~or ~rea.rn nr nini nn, t. e r-ov en t is transferre to tb o nt r 111}J e r-: 1 , ; i o i

-dicat the tot 1 flo · in cr -teet.

h ·ns not d .. a ed in n rra!Jn in trunsit nrl ~. ar€ntl~ a~ in ,.,o,J con lit 1 n ihcn u. nacke •

he rr ter s set u for the tests s s o·m on nlat ~I and TI. 't• ~d

t u per d lo~ · r6 ril'lF!S for~ r- d t'l.W: tort.· hook-g..1ges

t · n for each

o... t t st ~ .. ::.. detc. · ·. ed by a.n o'b erv-, e ·. 1~1 \ 1 t 1· • 8 toT)- a.~ c. "' ·ln

to thr: l t .. nk. ~ _{fi:r t a of to at., f.!l';}lt.~}

ar

_{r de. ~re lott ·l o. l~t}

t.

co ·:r .. o '4t_ t !bcr, ~ .,

to st. 0! _1"' (: _{or t ..} is

J. .. t .... 't _•

~ rt in .. ef nit ur-. .. r he wer _{.d l•J\'".Ie_ 1~} a. _{v· 1}

v

0\l r tr,e '. va.ilo. b 1£' 4ill.1 (;.

;or th ea·'n seJi 0 te t ... r . lt of i ... a-r l)tted n nl t II, o .r .. i 1'1 n1 t lo.--er ro n t e u r ri ov r e

l ~ llr-11 _• on 1oh th ori tio~ anc1 .tor ·er

_•

~ s J ·c d at t,. ( E"nd of ,. .,. tt. G 1ns. in wi · tl und 3 fe·t d e '\'U~

'

t to r('; rese::.1t ~ b•bl· • (! 1 ~ .. :! t

-· • h Ff t.r. 't ..; · ce on _{~ '}

0 t at th~ .ar 0 ber W G • '0 .... to 0 t A ~l- ~[' !J-n 1. 9.1 t t; is inntt ~ 1 t on it "~· 5, th ·ref r "•nbt to ~t _un If./'>

~ i. J

t ons t , t1.. 1 bo to!"": . 1 not .... J.lo ! u. r,..foot

~.he ori£1oe used was

1 t b(:Ji ng t' s .e 1JDE us wz s used 1 the test et r :o. 1000., 1n D c~trb~r. ex· ct <J.r of t _ ori fie to 1.011e • rt.,

en in b observ ti n vitb St ~r tt wioro ~t r,

of n i :c.h.

v r tion in zero- tur :or t~f. QQ ted to o. no-z f£ or

the

.

.

r 10 I '!"

first r

r

rred to th cant r o1 tre lo\er ed

sot't:att . r f r e o 1stot •. c~.;.tro t,r orifie(. or

ure" ro· t! ton o t ~ lo -e i.~ ot tb~ . eter a 0.3~0 fe t

() th ~ t ~. 111 . to ) o t h lo 01' !!

t-tl n t'e G~tFr oft or ~· ... cr:. ~·1

j s no ... -oter ·oco·n·s fo. t A 1tf-.r nt trcr:d of th· free-.,. u - c co

t th~ t l.)ts !' u t d 11 1:2 • tJ r.

set lo··er rF:1at1 ~ t tht.: o 1.4.10 t n ~ tho t st •

\on'l:t or.n. not f'feOt tb l"esu1 t;) for ClOtr·'rla.ri

son

Uf'!Aer ~·l}: ,r

~ev r 1 oh a .. r in we:r n: de to det · ;·inc t ~ •:mr • of .ou n t o.

rr-vo-luti n ... of flo -1u io tor ., u: .. d t . , se 1 . 1 c · t i .. , t rel

paSE_in t

· e ·to lun trio ... sur ~ .... t ar

frr. • t ~is v-lut ·~ to 0.1 st tel ofor , tb .,nt in nl"'l. , ov ·r t !." ... rt Ol"' t test et r a to i nt ~ e rort o· t s i ~ t tho ..,e,r f':ro d br J ~ oar:r~ ed b.. thP. ,.,.. t~r. t 1 nt ble I, th· ~ t~ • ote. ~ b1t erra ic. 1:c ·~r~ on ~

ct o1 ··

t ~ t st _

t · lu · •

t t , 1

t nde 10 , to ri t. e. G' f,., • ~ 1 S ! 1 C tflrl

I, t t t € curves for u UEr ha·d of 1. 6 fe t '!l .6 .... <'! ~ ~ 1 SG 1t · tiv r:r· th X>nl bP ex ctod. r· ot, ly 1rL t PS t ft s. .. b11 t st :·o • 714 '?. a i ,h s ed

n '0111 not r .~ ter ·in i l t e eff tiv. h s • ~ 0 _t

o.

f ~

0 t. ut,

aft t. f" tt,rb!ne co 1 enc rot .. t · I 1 .. cr n:1 r EV-er 1 ts ·er de -ores sly to sti ,, t. 0 GVfr., i .. '1-...." .).to t'O.

oo·lur e <uri n t ·E l 2. te t. ·n tb C.-l-lS 1 0 I . or. it rot

t '';!, t t on t n I. ~b r o " ·~o nt

r-e 1 s ng· go • ~· o po 1 ti n o the , ls, · 1 uh "~ 11 re ire r-axL. u .st.~r If j tor uc, is ·ho-n in t

to 10.

no.

-,

--~~-~~

11

,-~~ -~~c ~~~

.

d

_l

0

_. ~·

I

- IL.-J

_I--o iti_I--on of ·r tr·i, req" iritlR · zi ·

tor u to st rt.

t is tboun: t that- co~ dit on r-11 r to tb~ 011 ~· ·~n

,n

th _{f:\. "ur obtr i l}

-e .. en th. r. eter tu k n rcq·l ire n U'11 . (j to start i u . 1 _•

t t •, 0 n o t t n r-\, _.-1

i 0 t .c

.4.

•

t f: r o··n a. 11 t. :!'! _{1 ~u io}

.'1 1 1 t ·ro t. l" of the

t ~tv _{t t .r r n ve othly.}

..

_e ... 1. _t rbir.e ' f, ··e:l no •

:r-t te-dAn to ri u 0 th flo ·-1. i . ftc tJ (' oi nrr, t

-tcr :ran llm r h d

or

lo s t · r o.Ol f· ot.

late I JI is a. lot of th'- 1_{Goernb£r, 19.~3, r s ,ltr:r.}

I an I I ) o <:! a lo ~ a , re , e:n t in t e t o .... t n :-> f t . s b tr~. '~ o t e

sub rr: nee curv is th _{'-· la} r's r s lt3 ~·o· lar - r ne ati:e

r-rors for lo effective he d • Th higb r i tio1 of t cter id not it

~lll"VG s for setting.

ner .neud, of

a.

7 feet 1 d

o.

f feet, a. v: s obtained L. 1" st

y

ar • o

I ' 1 a tr·cin of thEJ. cur e:r.; ... u,b!'·itt db· t r 'r ,..t

cor r:i on o" Tll t a II nd I'l s} o i",lj thut o . c rv fo:r rr tcr subrr. .r noe of 3 1 c! s ollo .:·s th 11 c .. "lrV on ~lu. t I ·or ff at 1

ra. rr • n f . 0. 4 fo o t to 1. 0 fo o t. 11 oth r ~oints o

te tJ- 1 ft o corr roz. t 1 no· .~t., Oli ~ 1 tP.

r

.

For th t-un used 11₁ th s t at s. cter rr- _{i ~} ter o., as

i ~ (' ·n y t l n at i v r r i t 1 o · ,._ h ·

r

t

on

{t: .. •eter . 1233) ;.;O _d ate b ~

~olin J. m ;,rlor and 1. L. ,,tock ; 11, ,1r.

Junior Irri .ation

\.e:·

e rs

nder t~ ireot1on of • Po.r hall tion l' gincer ydraulio ., bor tory

ort Collin • Oolo.

Pr, ed. undiC'r the Direction of ... r...ru 1 FortiEr ssoo1a.to hief, 1'11 "• of 'gr. -~n~r~ E; ring

P. sed o d· ta g· there _ lndar

co-the ~1_{ur au of ''"-'ublio · o}

by

f'!olin • ravlor

"'

..

..

.. et r o. 1 ... 3 fro t re t \ t!'!l:r. • tar .o of

O·l·l .d, . l l om , fbr 0 of t .sting t

,f.· ,r; hd br 1.:1 d s tm to · et r ~<o. 1 0, tested 1r1 ""'.o 1923, offio fo:r tl1 ~rea.t ;:e _•

oner ta under s brrerge oondi . · o:ns 1n oon. C()tion ,

n. oot aquar • the oo ff ai t of d1 soharg- for th or1 fi ce e · ng tt. \:en

0.54. flo indicator is su , e· to t rn on eo nl te r volution 1or

each 11

.0100. oubic-f et of . ter as .• .. 11, volu 0

or fioe 1 r ~1ster

a -~y · r ti tl r t i . rru be

1n:1 'tll d n ar t . or\,_ io 1 -::m · e e'1t' vc 11ead is

on ratl on tJ r '~i th o 1.~.'io.

tr lEi on i cf' t rut t•

~ 1:; he. t t.o rot'tio1 of

t t· rbi n., 1 a r.~.ot Ot. of t <l!" b~

1n1o. th 5 af ... H-rt -.i',J C'HJ.1 I'! o:r' ot}J 0

g rs n. . ln1· 11~, t to t. ~. 10 '"'~ ert:l s, i .. h 1cz..tr t .. tot c:r

-

c t. . a.'! 1 · n~t ·· nn . r- ~1 tr:. s i . ol or 5t1 n ·~ n 1 ·o _• to net up fo te ts on nlat I nd I • k -gc , r or ·.z. foot, "".r. ~e to

t e u per and lo er heads. h readinns tor zero d tum 'or tl h ok-g· e v-er detf::r"•, ine··1 _{frol!\ ti e to ti e th111out th tests by r.:e·· s of a \er ~Er}

tra."i-slt nd speo1 1 1 ve i~ ro • The w ter ssin thro :P.'h ti: or1 fioe v: .... 'Y1' n.s-red v 11· t 1 ~11y.

r nd lo er hcadR ere t 11 for e c

test, ttl. T"leans of these reading be in t ... -::en as t t'l true v lues. ~he nu!""',er

of revol'ltions oft ( flo 1-i dic1tor urit.::r test s det ... tne b" an ob

.erv-er, a 1 Md :1 th a stor>-\vatch. Thla ouscr· c:r t~lso s1 naled for the on€nin r nd

of t r at . ' ttir!P.' t e •ater to t:h€ r.:ea"' riJ t-nk.

h first seriAs of t sts, rcn lt of l ich are nlotte tr: I. ':'l!J.S

t · n for co rison . th thP ce ber, 1~2 , test on ."'eter o. 1 08. or thi

ser1 s, cert. 1n .efinite u nr-r heads ere intui ed 1d the lo or 1 ad varied

over t1 , vail~ Jlr; Tc:A., e.

oert in d~t1nit lo ~r bead ere rn· int· ine th u per he d v rio ovEr t e

ava5 lable range. i series vm.s ta ~ -'n t _,. ec,_ th<: l:" sult of test b ..

th$ ~reat Western 'eter. Co any.

m _{1khe d, on io the o.ritioe and rretcr wer in"'tallf> ·a l'l ced}

'"

•

t e end of '2 _{ft. 6 ins. in ·i t· and}

"

f Et do a t. 1 •vr ' ,, ..

t resent ,10bc~bl · f ·~-; ld co itlo:r-. Th~ ,...ctcr an .lac on ~ .e

1. • 1 ,hA d £0 that the eeur ch r..ber s just c;] _th to of the -nr a"" _"'

h·n-1 ve he d of o:n foot v.i.t' the eter aulnr:orged to lf irch~ o, n .7es o e in t e tests coDduotee b"t t f"\r a.t . estern ·:eter .ott aJ y. Conditions in tlP 1 bora-tory :oul not .... llo a. -foot dee a ron...._h ch : ... ne 1 ;;:1 t .. o t e t~nf j VEJ al t .ion •

The orifice used wa. a no .inal one-foot-s uare. sla.:r ednecJ, .€tal O!'i ·ice,

1 t bein€! t f s .e one as as used in t . te ts on "~'etG;r o. 1008, in

1923, The exact c:trea of t e orifice was fou11 t.o b 1.0118 sq. ft., baing rle-tcrnin db 26 obs rv:l.ti ns 7ith a Starrett icro etor, r ,adL . _l.O o11('.-t ouso.n1t s

of ~ n inch.

j.he v :riation in z ro-d tum .ror th hoo art . s ar oun te· to

o.

03 r:;e t for the · er P-ap·(, and 0. 002 fe t for t h£:: lower gage. Un'fier and lo . r hG ds a.re fir t referred to the eent er of th lor·er ed e of tr o:r i fioR ~:.~.l1C t. rn correct d so t_ t t 1e r .frrence is to the csnt r of t & ori fie • ~:eter S'1b'"'C'l"P"e· ce is !"'ea

-ure _ fror· t H' ton of thC: lower easti .. g on th n t r. f.hC' to of the loner c

st-inp on the -r.-eter he c nter of t o o:rifiet:. 11_his

tion of th~. rreter ~. aooun ·s for the c i:ff .. rc;nt trend of tbe fre -flo.· curve co

to t o ecen:ber, 1923, re ult'l; -for, in t'ro tests c~ lJduoted 11! 1923, t!l · .etfir ·:as

set lo ·er r~lativc to the orifice t11a.n in tr.e -or .sent tests. not affect the resu1 ts for corn'rlari son 111..d r su ci co 1 _ t ions.

Several ohecl :r 11s ere rr:ade to d te.r ·ino the a:ccurao:'' of count1r~ tr•

rfvo-luti.onz of' th flo -intiio tor manually, and these 1 .dicate thu.t tr

rella le. ·Lhe olunetric n:e surer ents are cou:r. to to o. f• ~r .e ;t for t"1e t ts

ss1n t c srrallcst v lurre, e.

g.,

test nu:rrber 7179; an· t. e n.cclra.~y r:..n es frorr tJ~is value , to 0.1 p rce::1t for the test T)JlSSin th · larg st 'l:olu. e.

s stat d bcfor/, the ter anneared to be in good oon(ition. ~4 sere n

·ere k t in 1 c ovsr t: h..ita.ke nort so tho.t t o rr, t _r as nrot cte at 3.11

tit!'es fro , debr1 s carr~ ed b• the at cr. neve t .1 s • t!n•·nc 1t th tests s:~o ·t~

in 4able 1, th rr t r oted it erratic. 4:e ~r. o t t r in · -ft l a a tendenc't to :rid. u on t:b inion of t e :flo -i ndi cat or sh ft. · .. J' is i r.rt1oate

I, tl t the rves for u ~r h w.d ot l.OS f t •'1~ l o.s·~ -f et .. l·'o ... v.

e:r:ro :r t · .. ;o 1 ly arlr4r · r-·!!

hil satt J:! for t t ! o. 71 t.s ·l" sto·..,., d

dl woul. not r Jd~ r ··s ·~o.to •. . L t . t,

f r: t E t-:"trbL rot t. >! it

ts er G Dr s l. to t.

uri :1 t 1 2 tests s.nd t ,a.., r. 1 t. v:u 91 l''lO ted tl' t ~ re 1 t~ ae O'f.,r ·1 b; t f au 011 t 0 • <!OU t

'h .. -positi not tbew ·ela, ')j!ch \"Ould t ur: s ta:rt

htn-to roue. to 1o.n • t is ·-h •. t 1 t t 0 thP. ""

,.

.stt! 0

.

ther e:r n

· 'ho n 1 n t e f1 :tr c 1. (: • • en t h } rent Q t r ' v 11 • ; fd n · fro t.. 9 • ..19

,]

0 t on 0 ing :d

o:r u

t" 0. t t t CO.l' it 01 i l .. r to t ... " l1 Sl10 tn :n thG 1 0 t .~.!r;

-ter stu k ·nl :r q·1ir ~"' ad to ·t -rt t ug 1..

.. o , lus!on 0 t n 4a 1

.

.

vis vl 0 t kc

1 t. 'i i ··t t ro t} ~rr:a r:d .. r of tl

a r~ Vf':~r oo 'r•l _• s1 •. ,d 0 .

r-~

.eter ran un1er h d of le

lat III is a. ,lot of the neoernbo:r, 9:~3, re u t ....

I and III h s a clos agre "''f:nt ir the t 0 et of t t s. r _e

tr€-n 0 t ~

sub err ne curve i" the eume. his r's re ult s' o lar er ne ti e

-r-ror for lo ffeoti ve head

.

.rh higher position of tn :meter di not ·l"'!'"it

ourves for u ner heads of

o.

7 feet and 0.6 feet, as s obtained 1~ 1· st y ur's

etting.

1 t I is tracin of th ourves s~b itte by th r.r at .e3t et r

A OOl o.ri~on of latee Il nd I sho s t t our c rv for

.

ter

subrr r ,ene of 3 i ches follo r .. , th liko curvo O'l'l Pl t IV for effect 1Vfi h ·ds

rannin frorn 0.4 foot to 1.0 foot. All ot r -ooints 011 1 t I! l i oonsi rahl

to tl1 left of carr roz 1 noint 01 'Pll tP.

r.

·~

s

or th l"ticular t-11 us d in th s tests, th n t r re i t rs 0 t as is coho ·m b t n at1v6 rror in t rn 4_{ori t Of th test}

.

!!'t _{1 n ~ ti e} e-rror is er; ·rke for eff ot1ve h ds of less t ··an 0.2 f ot.

• o11 J

••

•

•••••••••••

S T S {~ en t r .. o. 1233) con ot d b L. atio ra l!a ;f1ort olli bom.tory Colo. 11, r.,

:t I IG TtO (L 1 2 3 ~) by Co\in

...

.

_• lor

••

•

•••

r v d f::r~ t ll at t ,'t' ~or! . · r~v

•

0

d. Cali rorni

_•

for t .OSf'l. of t ·st1 t aecur _•

! e:t. G 'lar 1 .w _{t r o. t at d I 9~,}

t +'

tl-·1s ff1o

_•

et r rnna

_•

•et r o .. 1233

•

si e ti1 t 00 ₁

t'

ex> _Q _{t:m.. 11 0} fto

'F' eo ffici t of d e e fo t "' r~fia t 4. flo or 1 to t r 17.0 ... 6 cubi f.e t

_•

I r et~

..

b t'h

..

t 1 t t~' t1'

·

m:v

It tl J .la.r b. te md ned fr em th • i 1 t 11 th 0 tna 1n t r that t t ct

0,

a.t 0 bo h th d. th.

r'

_f!O'.!.

..

~ .o 'tl19tt .is 1n 1 g 0 tb.

'

""nd tha t)

w

eli ttJ o· ~ e ts t ~·at tb, ot·· -ti of t t 1 a not on of t v h _• h b1 . by .. 1tans nd 'Pinto to t h t. ot d ov 1 0 the ~unt :r 1 t tn t. me no t rram in nd tl ~od 0 h I nd I • r oo _{• r} th t · to t• 0

t e 'I" nd l _"e it ~.·')d _s ,oi~l '\ (Vt:. s c o rc o uttona 91 h c i tl10 i~ oi'" f.:\ st eJ ... ~ . f his va ied ··o se 0 te 'b a.v t ,1~ _r by th t •

••

~f:'h _.ad! t l'U 1! rnt1 .• ·;,he wa.t ~ of tl'>-, l'P b flo ,t..,nd1e9-to (! a n of' st ·, ef ::~r ~ 'r'Q datu, for th t stu b~! ~ . t ~ u !nfr tbm th~ o.r!. t e~ d 1 r h e:t> n dotf: ::rn~1 ~d r ·1 n.t~:r ob re 'r) tests 0 tRJ:" o. tl"d,.t .. 1M'-' tU\1 tl d ok-.

'

r.\ _rg r rc.-r.-~{1.8 _{aa1.1r d} ao. " nu bo by an 0 ... fr;rr t 0

..

I, 1008. qor 1 ft'; h,ad, 011 J. t~ I • l"'

. rl s G tak n to eh . e'" th r· ~~ lt o:t' t. tG .. · d

16 1HSSI a t 1 n 1 3 ft. > • 1. a a t t'r.l , t () t c ulkhs d so th t t Oh e i l.aoo • .wi tJ1 t 1 ad of o. in ('} oo . .itio 1 • 1:P'hfll 1- , t~r ~· s 1 aeed t n it ... -

.

0 1 t P "'r ~ ~S 1 th o ~;.mn~l t i t out t> ,;ton~ ve - .2

-rifle d orn1 al o f e ; t t e1

.:.. ob rv tt

nch.

t'! vart:tt1 on n "

-

at fOl"* thi:J .ook'

fr!: ft, t. for . ·e 1o

at .·e e.~ d t 0. .. t .r ">f 1

0 that 'h ~ to ha a te ... tle 0

r I t

n. Oll thG .. t \r." _{s 0 .50 t.}

position of th n~fttt r .. unts for t If-' li"" l"CJ

!"' a. :red to thfi ecerro e .. , 1923,

r i'v . .. 0 ;t. ... o·1 10

!()'1; _{v~:r, thi d} ot _{f ot} t.,) re _t9

1 ti l'l

•

~e ₁ Obe vru re JT;ade to t :r . i

l"GV olut1 tl' _{flo ·-} to ~t·· 111

'11 r 1 !a.ule. fl vn 11m t•t. ic ~·.'fl.. ~'Ut'· '

t ts :r ~G tit'rrtr 10lltrrle. ent ti ~ f able I, tht'l all $t tt i v luo u ted b 0 o,. , te c ln. _•· e. _•

_••

t at to 0.1 Dar cen fn-r e rroter '!1J'C&t'" t·t in rt o t t r · i t .rrattc. t t

'

0 1-o. 10 1. 11. _• 4 .. er._ .rt!• 5n to

...

~ 0

o.oo3

tt tor r d 1o ~ :r b~au. t e eter :r. Thti 0 !' nri ~

•

tr of J (• f J f1 e ve th t. sts ()rn·,r) _c ed _{l'n 1923.} Ue -nr s~mt t '

.

n un ;r ·;bf::; ~ _{e en}

-ec ra ot 00 .ting t¥ : t to o.& ·or t . e r 7179: St'Hl t h a eour~l teat ms ~ t.H~ la.r e t 1 rr. less, t out .h t e

t d ey 0 :r 0 t:h-e t t 0 ie· tor sh f • 1 1. c'l:t a t .d. 1n th n. 111 0 ~ot on !)lu.t da o 1.0 _•

.s2

f _• d. l _~ nt .r sttooth:ty (, t.,ats. ',"hi1 tti ~ 0 t t

_•

71 • h. h1 a.'!ter t t at the rer.d

.

0 t rq' 1 ~ t 1

• oo.

1 n utltil t ~ ett c , '!;f' a}

_•

ft d

t ~c ott re by the< a.T

..

siti 0 t n.

i the ff ;

_•

_•

_•

v· ll

too

9.

9

Pos1 ion of a trnt reg 1r1 tor u• to star •

4

-•

t- " t 0 d

h .a wae bout

o.e

too

'

3 .lt,, not at olr d f • l1 t. , 1 ot . mL '-'l" of "o .nt ,-... oul. ~q :r

,.,

,

art -~iate f'ror: .99

t n · en the t r tuc d red an unJ ~ 1 h to t l" _•

-t he si. es :ir: it s t·

he te oi 1 t. J 1 .hr. t e t ts,

run at .. _• 'M'!"I t Jrb 1'1 h ft .P,l t .... t:

to fl v:-1nd1o to :r ni 1on. tll nil n

' the ·.et@r !";A

un_.. _{ha: of 1} 5 'h n

o.o1

oot.

(}"~

Plat~ 1 I 0~ r, 1 25. ult .•

I d I!I aho lo ~a ~et .. nt n _the t-v:o sets. of _te ta. _of tH;

stlb-wt•rrenc(. ou:rv $ is th S~t~lG• !h1s e r's OJ' I

for 1 'f-1 £f. ot! ~ ): _dtJ. ('P 1

,Ol'l

of th. d n t 11 v 8

r

'

l' · bfUi. $ r

o.

7 ft. d o •.. s obt tn d 1 1~ t

.

... r' _• 1 t l i t Qi _{f l2}

-

0 late I I th n for a 1: 3 t~ . .J.a _IV f

o.

n.

t() 1. r

_•

(~ _{11 ot c; "JOi t I I} 1 r~ id r bl ·o t 1 ft o c r int . o. t . _:rt 1 0 t tb · e te. 'Pb1c < ttv

'.:'est 11ro. Upper ~a ad Lo;ver Head eferren to center of lower edge of orifice l'''I<!ET 1)iff. in !Lud

tABLE I. Tests on LY"~un •eter 'a, 1233 vith Const:-.nt U p Jr rearl anu Vt.rying Lo.ver Her:.d •

Upper Head referred to Center of Ori-fice Rev. of Flow Indicator ih.eo1 ~ime in Seconds T Q~ 17.0156R 1.0118 T Volume Cubic :Feet

v

Diff, or Qo - Q'm

%

=.::rror Diff. ~ --- ---~---7139 0.8 9 710 1.072 '1141 1. 43 714 2.079 7143 2.1G9 7144 2.159 7145 2.159 7146 7147 2.158 7148 2.047. 2.047 7150 2.046 71.1 1.731 7152 1. 732. 7153 1.730 7154 1.582. 7155 1.584 71~6 1.581 7157 1.316 7158 1.313 7159 2.162 7160 1.578 7161 1.~82 l3elow lover ---edge of orifice ) ) .) 2.080 1.782 1. 390 1.108 1.119 1. 981. 1.755 1.219 1.003 1.324 1.597 l.E26 1.4::..2 1.135. 1.038 1.205 1.389 1.528

---0.079 0.377 0.769 1.051 1.039 0.066 0.292 0.827 0.728 0.408 0.133 O.OE6 0.162 0.446 0.278 0.108 0.773 0.049 0.054 0.34.-9 • 943 1.579 1.659 1. 659. 1.659 l.G59 1.658 1.547 1.547 l.!A6 1.2:-51 1.232 1.230 1.082 1.064 1.061 0.816 0.813 1.078 1.082 l4 35 55 56 24 51 80 95 100 13 85 73 47 18 13 18 51 36 21 50 15 1& 203. l.FB 1' 3. 8 3.040 207.1 J:o470 6.590 340.0 ,I '1!'7 1.187 328.6 2o610 322.6 4.172 ~12.4 b.ll2 330 .o 5.100 308.6 0.708 301.0 2.347 321.6 4.500 284.0 4.323 273.3 2.896 278.8 1.097 249.5 0.875 20[!.9 1.444 2<!-8.3 231.0 2.620 253.0 1.395 187.5 4. so 240.3 1.049 246.3 1.090 4J .83 672.74 %5.18 870.76 537.36 910.28 1325.95 1!J4::S.9!1 1615.53 376.01 '( 4.51 1419.42 ll76.58 856.87 582.88 287.41 4.20.81 816.06 595.61 388.76 810.06 294.64 285.22 . 2. b8 -52.9 3. 72

... a

.

32 -12.4 4.660

.... o

.

I9o

- 4.1 6.09q, -0. 95 + 6.1 1.581 -0.394 -24.9 2.770 0.160 - 5.8 4.117 -0 .055 .r-13.3 4.940 -0.172. + 3.5 4.099. -0.201 + 4.1 1.217

.o.5o9

- 1.8 2.637 .o.290 -11.0 4.415 -0.085 1.9 4.140 -0.163 .. 4.4 3.13<1 - 7.6 2.084 -+0.997 -47.8 1.150 0.275 -23.9 2.014. ... o.570 -28.3 3.280 -0.170 + 5.2 2.560 -0.040 • 1.5 1.537 ,.0.142 - 9.2 • 3.20 -0.160 + 3. 7 1..225 -14.4 1.156 .f 0 .066 -17.5

Condition of· Flo-:v

u " II •• II II " !I II II II II II

"

" II 11 TI~ .,. 1.~3 ft. " II ; , II II Ha

=

1.08 ft. II II " II " :ra ... 1.66 ft. H "' 1,08 ft. a rt It

*~ ~ ~i~e in Seconds; v : Volwne in C~bic Feet "m = Rate of flo.·1 as indicated by _meter7 '<:to= :lute of .~.1oH .. eusured vo1w.etricu ly

---~---~---.t:est ITo. 7162 7163 7164 716!3 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 Lmver Head Referred to c<::~nter of lower edse of orifice FEET 1.109 1.100 1.133 1.098 1.162 1.097 1.198 1.099 1.261 1.398 1.100 1.705 1.101 1.902 1.102 2.164 1.102 1.684 1.693 1.683 1.713. 1.684 1.745 1.681 1. 782 . 1.581 1.634 1.683 1.992 1.684 2.248 2.100 2.120 2.101 2.171 2.098 1.837 1.661 1.701 1.101 1.197. 1.100 Diff. in Head 0.009 0.035 0.065 0.099 0.160 0.298 0.604

o.8oo

1.062 0.532 0.010 0.064. 0.101 0.151 0.308 0.148 0.019 0.073 0.156. 0.600 0.097 Upper !end r::ferred to Center of Orifice 0.609 0.633 0.662 0. t39 8 0.761 0.898 1.20o 1.402 1.664 1.716 1.193 1.213 1.245 1.282 1.334 1.492 1.748 1.620 1.671 1.337 1.201 o.G 7 Rev. of 'low Indicator ":bea1 12 16 21 . 2 33 46 56 72 50 4 7 13 14 20 35 24 5 16 20 37 13 ~irne in Seconds T 203.? 219.7 207.0 222.2 184.3 199.0 20L.9 230.6 237 .6 157.4 163.3 183.8 149.5 188.5 224.0 230.0 192.0 232.0 181.6 167. HO.[; 17.0156R l .Oll8T 0.413 0.920 1.300 1.588 2.008 2.790 4.050 4,560 5.250 3.540 0 .427 . 0.721 1.190 1.575 1.785 2.628 1.?57 0.438 1.160 1.557 V01UI:'le C~bic h'eet v 112.59 216.41 276.30 342.54 363.28 534.02 727.88 895.09 1155.40 853.35 93.38 137.27 249,00 345.77 610.85 438.93 ll8.97 303.34 86.63 223.46

l • 'lime in seconds; V Volume in C'..< le feet; .... ate or no l s in i-x.ted 'r:rJ metorc:o

:.~eter s~b':ne:rgei:o e in inches

-0.554 0.141 -25.5 f~cter svb::Jcrt;er:ce = 3 inches

0.987 "0.067 - 6.8 _" II 1.334- +0.034 - 2.5 _" 1.542 -0.046 + 3.0 _"

,,

1.969 -0.039 + 2.0 _{" "} 2.580

-

o

.n

o

+ 4.1 II II 3.804 -0.246 + 6.5 II II 4.350 -o .23o 5.3 II fl 5.014 -0 • .236 + 4. 7 II " 3.590 .. o .050 1.4 10 inches 0.594 -28.1 11 II 0.041 -14.3 II " 1.272 0.082 - 6.4 _"

,,

1.664 5.3 _"

,

,

1.834

...

o.o49

- 2.7

,,

,,

2.726 ..,0.098 - 3.6 II

,,

1.907 - 7.9 :l'eter sub~Te r !'Cl1 co ,. lf· inbhes

0.620 -29.4 II II

1.307 -'11.2 II

"

1.909 0.053 - 2.8 l'ete:r S .b•Ye rc;e.1ce = 10 inc;he s

3.7 ... 5 + 6.3 II

" _"' 3 inches

1.590 ... o.o33 - 2.1 II II ₃

71. 71&0 71-U 7141 '71U 7l<M 714.6 7146 714:7 71.62 7161 7164 7167 7111 'Ill~ 71.0 ?161 pper Hta4 Lmr He Baterre4 to Center of 1 r · or orltloe i'Dlf 0.849 1.0'12 2.079 a.l69 2.169 2.168 1.732 1.578 ' 1.682

elow lower edp

of orlfloe

"

tt ft IJ

a.oeo

1.'182 1.108 l.U9 1.981 1.755 1.219 1.003 1. 26

"

T BLE 1.- esta on Dl'tl. ~ Read.

o.on

o.tn'l 0.769 l.Obl 0.066 0.292 0.82'1 0.'1.28 0."'8 0.133 0.056 0.278 0.108 0.?73 0.04,9 o.oM .? Upper Read reter.red to Center ot Orifice

o.M9

.572 .9D 1. 9 1.659 1.659 1.231 1.082 }.OM 1.081

o.et

0.813 1.0'78 1.082

eter Ho. 1233 1fi th 0!18ta.Dt Upper Read d va ing Lower HeQd.

.... of ·'low Indicator 1 14 5 56 24 1 80 9Ci 100 13 6 73 4'1 18 13 18 61 21 50 16 16 ime in second !I! 1 3.8 20"1.1 34.0.0 8.6 812.4

.o

8.6 301.0 521.6 284.0 273.3 278.8 208.9 231.0 253.0 187.6 240.3 1.168 3.040 2.610 Vol

c

·blc Feet 1' 672.74 9 .1 8'70.'16 3'1. .172 1325.95 5.112 1643.93 5-100 1615.63 0.708 6.01 794.61 4-.500 1 19.4..2 4.323 1176.68 2. 96 1.067 0.8'1

s

.

1. 5 1.090 56.87 816.05 6 5.61 388.76 810.06 285.22

Cl·v

_{o T} .472 ..

o.-\3.2

2.770 ,.0.160 4,11"1' -o.o66 4.9 ..0.1'12 4.899 -().201 1.217 -o.509

.415

-o.oas

4..U.O -o.l83 3.134. .o.238 2.084 .0.99'1 1.150 .. 0.27

a.o14 .. o.57o

2.680 1.637 -o.170 "- 320

-o

.160 1.2.25 +0.176

1.usa

..

o.o&p

~ rror • -52.9 - 4..1 + 8.1 - 5.8 +

s.

+ 4.1 -11.0 - ?.6 -23.9 -28.3 + 5.2 + 1.5 - 9.2 + 3.7 -17.5

( • J ! .. :.~.:1me in S.aondB+ V • Vol"Ome in Cubio Pe t1

Condition ot low Pree no

..

.

•

"

B 1.66 feet ft rt

"

"

..

,.

" "

• 1.55 teet

"

"

l

"

..

_"

Ha.•

1.08 teet

"

It .. 0.82 teet

"

n " Ha• 1.66 teet 11 • 1.08 teet ft u Tolumetnoall.y ---~---~---~----~---~-~~---~---~---·---.---·---~--- ---~---7162 7166 ?116 716'P 7168 7169 71"10 7171 '117% ?173 '11'14. 71'1 7176 717'1 '117 7179 7180 '1181 7111 71U

Uppfr li!a4 L9nr l{ta4

Rtterred to center of 1o r

rtd8e

ot or1f1oe. P !I!

1.109 1.1&3 1.198 1.261 1.902 2.166-1.&93 1.713 1.7~ 1.782 1.8H 1.992 &.120 1.1"11

1.m

1.?01 1.197 1.100 1.09 1.09'1 1.099 1.101 1.100 ltl01 1.102 1.102 1.681 1.681 1.683 2.098 1.681 1.101

!ABLE II.- Testa on lqman ater :tfo. U33 with ConBtant Lower Head

D1ff. 1n ltao4 0.009 0.035 0.065 0.099 0.1.0 0.298 0.604

o.aoo

0.532

o.olO

o.o29

o.ou

0.101 0.151 0.1 0.019 0.0'13 0.156 0.600 0.09'1 Up r 1J referred to

Canter o't

Ori-fice 0.609 0.63 0.66.2 0.698 0.761 0.898 1.205 1.402 1.116 1.193 1.282 1.&%0 1.&71 1.201 0.697

BeT. of Flow Tim h ~

IJld.1 tor Second.l l?.Ql5§1

Vol Cubie eet Vheel ~ l.OUS! 5 16 21 22 56 '1.2 50

.,

13 1 20 5 16 20 13 219.? 20?.0 184.8 199.0 191.4 205.9 23J.S 15?.4 163.3 183.8 188.5 2.24.0 230.0 192.0 232.0 181.6 157.4 140.5

'

0.413 U2.59 0.920 216.41 1.300 276.30 2.000 363.28

a.

'190 534.02 4.050 727.68 4.580 895.09 5.250 1156.40 3.510 853.36 93.38 0.721 137.27 1.190 233.8 1.575 249.00 1.'185 346.'17 2.628 610~85 1.757 436.93 0.438 116.97 1.160 303.34 1.856 346.46 3. ~60 586.63 1.657 223.4.6

V rying Upper Head •

0.55-ft 0.987 Di:t:t. o:r

Qo-...

o.o&7

1.334 + O.OM 1.969 2.680 5.014 5.590 0.59 0.84.1 1.272 1.&64 1. 0'1 0,620 1.307 1.909 3.725 1.5 0 -o.03 -o.llO -o.246 -0.236

+o.o

2

.o.o53

-o

•

.a36

%

rror

-Ditf. 0 - 6. - .5 + 3.0 + 2.0 + 4.1 + &.5 + 5.8 + 4.7 - s.& ... ?.9 -11.2 - 2.8 ... 6.3 Condition ~ low It

"

"

"

ft "

"

"

..

"

tt ae • 10 in a

"

_"

"

"

"

..

..

_"

oo • 15 lnahea

..

"

..

eter submo~ca • 10 inahea

" "

.. s ..

II

"

• a "

(*) T + Time in seconds; v +Volume in cubic feet; ~=Rate of flow as indicated by meter; Q0 =Rate of flow measured volumetricall)

Test l'!o. 7139 7140 714.1 7142 7143 7144 7145 7146 7147 7146 714.9 7150 7151 7162 7153 7154 7165 7166 7157 7158 7159 7160 7161

!:!J2per Head Lower Head

Referred to Canter

of lovrer edge

or

orifice FEET

0.849 1.072 1.443 2.079 2.159 2.169 2.159 2.159 2.158 2.047 2.047 2.046 1.731 1.732 1.730 1.582 1.584 1.581 1.316 1.313 2.162 1.578 1.582

Salow lo\'.'er edge

of orifice II 11 II II If " 2.080 1.782 1.390 1.108 1.119 1.981 1.755 1.219 1.003 1.324 1.597 1.526 1.422 1.135 1.038 1.205 1.389 1.529 1.528 It

"

tl

T13LE L.- Tests on Lyman t:eter No. 1233 with Constant Upper Head and Vai""".ring LO\~r:.Head.*

Diff. in Head 0.079 0.377 0.769 1.051 1.039 0.066 0.292 0.827 0.728 0.408 0.133 0.056 0.162 0.446 0.278 0.108 0.773 0.049 0.054 Upper Head referred to Canter of Orifice 0.349 .572 .943 1.579 1.659 1.669 1.659 1.659 1.658 1.547 1.547 1.546 1.231 1.232 1.082 1.084. 1.081 0.816 0.813 1.662 1.078 1.082 Rev. of Flow Indicator 'Jhaa1 14 55 56 24 51 80 95 100 13 86 73 47 18 13 18 51 36 21 15 16 Time in seconds T 203.4 193.8 207.1 142.9 340.0 328.6 322.6 312.4 330.0 308.6 301.0 321.6 284.0 273.3 276.8 249.5 208.9 246.3 231.0 253.0 187.6 240.3 246.3 QJn. 17.0156R l.Ol18T 1.156 3.040 4.470 6.590 1.187 Volume Cubic Feet

v

499.83 672.74 965.18 870.76 637.36 2.610 910.28 4.172 1325.95 5.112 1543.93 5.100 1615.53 0.708 376.01 2.347 794.51 4.500 1419.42 4.323 1176.58 2.896 1.087 0.875 3.450 2.620 1.395 4.480 1.049 1.090 856.87 582.88 287.41 420.81 816.05 595.61 388.76 610.06 294.64 285.22

Q(i ..

.L T Diff. or Qo- ~ 3.472 ... 0.432 6.095 -0.495 1.581 ...0.394 2.770 ...,0.160 4.117 -o.o55 4.940 ...0.172 4.699 -0.201 1.217 -0.509 4.415 -0.085 4.140 -0.183 3.280 -0.170 2.580 -0.040 1.537 .o.142 4.320 -o.160

%

Error -52.9 -12.4 - 4.1 + B.l -24.9 - 5.8 +13.3 + 4.1 -41.8 -11.0 + 1.9 + 4.4 - 7.6 -47.8 -23.9 -26.3 + 5.2 "' 1.5 - 9.2 + 3.7 -14.4 -17.5 Condition of Flow Free flow II It It It tr II Ra.• 1.66 feat II 11 n tr rt II I f " It II 11 It

" "

II II II II Ha.- 1.23 feet " II II II rt II Ra.• 1.08 feet II II II II " H_{8 .,} 0.82 feet

"

II Ha.=- 1.66 feet Ha= 1.08 feet

" "

"

(*J T =Time in seconds+ V =Volume in Cubic Feet; ~=Rate of flow as indicated by meter~ ~

0

• Rate of flow measured volumetrically

---·---~---

---Test No. 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7160 7181 7182 7183

Upper Head , Lower HeaQ;

Referred to center of lower

edge of orifice. FEET

1.109 1.133 1.162 1.198 1.261 1.398 1.705 1.902 2.164 1.693 1.713 1.745 1.782 1.834 1.992 2.246 2.120 2.171 1.837 1.701 1.197 1.100 1.096 1.097 1.099 1.101 1.100 1.101 1.102 1.102 1.684 1.683 1.684 1.681 1.683 1.684 2.100 2·101 2.098 1.681 1.101 1.100

TABLE II.- Tests on Lyman Meter No. 1233 with Constant Lower Head and Var,ying Upper Head * Diff. in Head 0.009 0.035 0.065 0.099 0.160 0.298 0.604

o.soo

1.062 0.532 0.010 0.029 0.064 0.101 0.151 0.308 0.148 0.019 0.073 0.156 0.600 0.097 Upper Head referred to Center of Ori-fice 0.609 0.633 0.662 0.698 0.761 0.898 1.205 1.402 1.664 1.716 1.193 1.213 1.245 1.282 1.334 1.748 1.620 1.671 1.337 1.201 0.697 Rev. of F1o"N Indicator Wheel 5 12 16 21 22 33 46 56 72 50 4 7 13 14 20 35 24 5 16 20 37 13 Time in Seconds ! 203.4 219.7 207.0 222.2 194.3 199.0 191.4 205.9 2Z0.6 237.6 157.4 163.3 163.8 149.5 186.5 224.0 230.0 192.0 232.0 181.6 157.4 140.5 ~-17 .0156lj. 1.0118T Volume Cubic Feet

v

0.413 112.59 0.920 216.41 1.300 276.30 1.588 342.54

2.ooe

363.28 2. 790 534.02 4.050 727.88 4.580 895.09 5.250 1155.40 3.540 853.35 0.427 93.38 0.721 137.27 1.190 233.83 1.575 249.00 1.785 345.77 2.628 610.85 1.757 438.93 0.438 118.97 1.160 303.34 1.856 346. 5 3.960 586.63 1.557 223.46 Dii'f. 0.554 +0.141 1.334 + 0.034 1.542 -0.046 1.969 -0.039 2.680 ...0.110 3.804 -0.246 4. 350

-o.

230 5.014 -0.236 3.590

.o.oso

0.594 0.84.1 1.272 +0.082 1.664 +0.089 1.834 2.726 1.907 0,620

.o.1e2

1.307 1.909

.o.os3

3.725 ...() .235 1.590

%E

rror

-Diff. Co -25.5 - 6.8 - 2.5 + 3.0 + 2.0 + 4.1 .... 5.3 + 4.7 - 1.4 -28.1 -14.3 - 6.4 - 5.3 - 2.7 - 7.9 -29.4 -11.2 - 2.8 + 6.3 - 2.1 Condition of Flow

Meter submergence in inches

Meter submergence • 3 inches

tl It II .!I II 11 II II II II " 1t II "

"

It

Meter submergence • 10 inab.es II

"

I t II II tl

"

II n

"

II II

Meter submergence , 15 inChes

II

,,

II II

Meter submergence • 10 inches

II

"

- 3 ,,

II II

"" 3 II

F1 • 6.- View sho lnR sn oi 1 s all box eetti 1 th book ages

at to~, inlet and outlet pipes nd rrovable snout to

1 • 5.- Close-u view ot grea tr in cavity Showing the 11 .bt

a rin .etal contaot in rovised to ~ive leotrical

Fig. 4.- Cbrono raT>h used to data ine t

Flo Indicator.

Fig. 2.- 'Domatream slde of or1tiee bulkhead sho ing ter i:rst lled

ith int e port at el vation ot cent r ot or1fioe. 11

. /

This Folder

gives the answer to one of

your greatest

Irrigation Problems

Our Weir Meter Installed

HE Great Western acre ... foot meter

is a reliable, accurate, low,priced

measuring and registering device, that can be readily installed on many existing structures and at small ex .. pense can be combined with proposed structures of special forms. It can be installed on any standard weir or ori ... fice structure, regardless of size, in an hour's time.

This meter is of the by.-pass type, requir ... ing for operation only a fraction of r o/o of the water carried by the structure.

It is of rugged construction, built of non .. corrosive metals.

It has been demonstrated that it is econ ... omical in first cost and in maintenance ex .. pense, as well as sensitive and reliable under the adverse conditions encountered every .. where in securing continuous registration of ir-rigation deliveries.

Our Submerged Orifice Meter Installed

THE SUB ERGED TYPE The latest type of Great Western lrri ...

gation Meter is for use with adjustable

submerged orifices.

This submerged type represents a

distinct advance, since it enables both

registration and adjustment of flow to be accomplished in a single inexpensive structure. Further details of construc .. tion and installation will be gladly fur .. nished, including dimension drawings and cost estimates of structure.

CREENING

The fact that only a fraction of 1% of the water passes through the meter makes the screening of the water a comparatively simple problem.

~n========;;;;o,;,;;;--=====o@).!l

e extend

to you a cordial invitation to

visit us in our new factory

which has just been

com ..

pleted, where we will

have a tJlant capacity

of three hundred

meters daily

GREAT WESTERN

_-

-METER COMPANY

1290 POWELL STREET

TELEPHONES HUMBOLDT 580 AND 581

OAKLAND· CALIFORNIA

GREAT WESTERN

IRRIGATION METER

···#{WEIR TYPE~<· ..

IS Is a simple, compact, low priced meter which measures irri--gation water in units of acre feet. It is a proportional meter requiring on--ly a fraction of 1% of the weir discharge for operation, yet the entire weir head is recorded. Our principle of construc--tion eliminates all trash and silt troubles at a nominal cost, the price for these meters being only $1~00 each or $n-?50 h · 1 f ~u-f~/Jo b f ~ ·JO

eac tn ots o ten, . o. . actory. Special quotations made on larger quantities upon application.

It is simple in construction, nothing about it to get out of order. Small in size-weight about 6lbs. Made entire--ly of non--corrosive metals, is quickentire--ly and easily installed on the weir by any--one and requires only ordinary atten--tion during the irrigaatten--tion season. No clock to be wound, no float to get out of order. No graphic sheet to be re--placed.

.HOW IT :VIQRK

The water passes through the screen in front of the intake on the upper side of the weir and enters the control chamber through openings arranged one above the other. It then passes through the connecting pipe into the turbine chamber, causing the turbine

to revolve, and then discharges from the bottom of the meter.

The turbine is connected by gears to

Great Western Irrigation Meter. See counter at top like a speedometer. Fig· ures show plainly in acre-feet and decimals thereof the quantity of water that has passed through the measuring structure.

the indicator on top of the meter which records the amount of water flowing over the weir in acre--feet.

The pressure head in the con--trol chamber is always such that the turbine will have the proper velocity to record correctly the weir discharge. A three--foot Cippoletti weir carry ... ing a constant head of .45 of a foot will discharge six acre--feet in twenty--four hours- exactly the figure indi--cated by the meter. In making this record the turbine maintains a con--stant number of revolutions per minute throughout the entire day. If the weir head were to fall to only .2 of a foot, the velocity of the turbine would drop automatically to correspond with the change. Likewise, for any other head the turbine velocity adjusts itself auto--matically so as to accurately record the discharge.

The changes in the velocity of the turbine are not at stated intervals, but are uniform with the rise and fall of the weir head regarless of fluctuations.

This meter is standardized for either rectangular or Cippoletti (trapezoidal) weirs one foot or longer in length un--der heads from two inches to one foot.

~~~~====rt~~lli~===d~

GREAT WESTERN

IRRIGATION METER

..·»>{SUBMERGED ORIFICE TYPE}<¥-E suBMTYPE}<¥-ERGTYPE}<¥-ED orifice meter differs from the weir meter in that the pressure control chamber is un--necessary, the turbine chamber is of slightly different design and the tur--bine is of different shape. The gearing, of course, is also different, for the rea--son that the discharge of a weir and an orifice are in different ratio to the pres--sure head. The orifice meter is in all other respects like the weir meter. It weighs less than 6 lbs. and operates on the proportional principle, requiring less than 1% of the water carried by the structure for operating the counter. The price is $~00--each or $3-l.S?o each in lots of ten~

f.&

.

b. factory:Y-<· 0

Special quotations made on larger quantities upon application.

The meter is identically the same for all sizes and kinds of orifices, with the exception of the special gearing re, quired within the counter for each kind and size of measuring structure.

ln ordenng meters be sure ro state l<,znd and size of weirs or orifices the meters are to be used tuith, together ttuith the maxi-mvm pres\ttT ' head

Every meter is fully guaranteed. Blue prints for installation furnished free.

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· ... : _{INSTALlATION INSTRUCT IONS}

GREAT WESTERN SUBMERGED ORIFICE METER

1. In each box should be found the

following:--1 complete meter.

1 guide frame-single groove-for meter.

1 guide frame-double groove-for screens.

6 brass bolts with nuts and washers.

1 screen-coarse mesh:

1 so·reen-fine mesh.

2. Stamped on the meter oover is the orifice area and also the co-efficient the meter is geared for. If a meter is installed on any other orifice area, or on an orifice having a different ooefficier.t of discharge than the one indicated, it is necessary to make

oompensatioms accordingly. On a«sount of the danger of over-looking these compensations it is not advisable to install a Great Western Meter om any other than the orifice for which ·the

Meter is geared.

3. To install a Great Western Submerged Orifice Meter, tools should be provided to out a hole 411 _{square thru the orifice wall and to}

bolt the meter guides and screen guides to the wall of the struct:· •,

saw, hammer, screw driver, chisel, quarter inch bit or drill and brace, and small wrench • .(

4

4. Out an opening 4" x 4" at any point in the orifice structure where

it is always certain to be submerged on the lower side at ieest one inch at minimum flow. Sometimes this opening must be at the side of the orifice. If 'at minimum flow th~ top of the orifice

is submerged six inches this 4" x 4" opening may be cut above the orifice.

(Note: Great Western Orifice meters may be installed in any manner or in any position on an orifice str~cture so long as the same effective pressure head of the orifice is made to operate on the meter. A meter reservoir may be built in the bank between the structure wings to obtain this condition if desired.)

5. Attach the two guide frames-the meter guide frame.on downstream

sid~, and sore~ frame on upstre~m side of structure wall. Each

should be set central with the 4" x 4" opening just cut, and with top of bottom rail or stop flush with bottom of the 4" x 4" open-ing.

6. Use three bolts on each side, eaoh passing thru two guides and the boards of the structure.

6, With guide frames in place insert coarse screen upstream in double

groove guides, fine screen downstream in same guides, and then place meter in single gP-oove guides. The screens placed in this order prevent trash getting into the meter.

(Orifice 2)

7. The installation should be closely inspected for cracks or ope n-ings where the trash might enter, and all such openings carefully closed. Where the water is very trashy, there may need to be

provided an additional screen of 3 to 6 square feet area, of mesh same size as the finer screen, to be placed around the small screen installation. This will protect the meter, and at the same

time pass sufficient water to pperate it properly.

8. Where there is danger of tampering with the meter, a box, open a.t the bottom, with hinged and padlocked cover, can be built around

the meter. The cover should extend over the screens to prevent their removal for access to the meter by unauthorized pees.ons. 9. To check the meter, using Flow

Indicator:~-Stamped ·on the cover at the right of the "Fl~w Indicator~' is the number of cubic feet of water JaSsing the orifice per revolution of the Indicator Wheel. If for example, 17.0 appears in ttiis

space to the right of the ind~cat or, and the indicator is turning 10 revolutions in 1 minute then 10 x 17 or 170 cubic feet are ras.s

-ing the orifice per minute or 170 ( cu. ft.)

=

2.83 sec. ft.

6 0 ( sec onds )

10. To check the meter, using Main Counter:

The quantity passing thru the orifice may also be determined by observing the time required .to turn up 1/10 or 1/100 of ao acre foot on the main counter, If, for example, 2 1/2 minutes are required to.register 1/100 of an acre foot (435 cu. ft.), then

£5 ( cu. ft.)- 2. 90 sec. ft.

15 0 (seconds

T

-11. Blueprints of standard types of orifice structures are available

and may be secured from the Great Western Meter Company on request.

Any inquiries relating to installation of our meters will be

~iyen prompt and cheerful attention, and our cooperatlhon is offered

1n any problems concerning the measurement of irrigation water not covered by the above.

l>HU;CTOHS H.,l, LY.'IAX,

ALIH:RT LI"SI'Jm,

UR.ICI:SUTIIEHL.\:-.D

r. Ral P r h~ll,

Fort Colli s, Colo.

ear Mr P r h 11:

0.AKL.\~D. CALJf'OR~IA

Au u t ~, lC!:: •

If the g v rnm nt has given h t of t r right y, get one of ou~ ssi ta t to run th H vi.u orked for the

ully, an +hat yo o much de}!endi g b.tly pr n chedule. Jndoubtedl y u h ve so e time, or time, hich yo~ could devote to t f

o h ·ng t ait ~or s ~

meter. ~e would ex~ect to ay •

gl d o do so, if it i not ·eo~ rdizing your 1osition, o ld not, if you handled the work strictly on a er~o

olicitati n.

The test nee not be nearl el or ran, nd I can see no reaoon hy it should t ke

i . . e ould, f th~ tter of

could de ide as to o y u coul u~ in

METERS e 1-'trs nal necet~::sit test on this ne ana ro ld be very I r sume at it u ... gent

ill o kin 1 advise by return m i , i

:thin the next ee~ or t o, in t is

ca run t i t st for u

Your v ry tr

GREA ESTERN

RJL/KH

DIRl';CTORH

R,,r. LY .. '1,\N. Pm·::-omr:NT

J-\J.BFRT LEJSPH.t=;, YtrE PIU~SJOE~T

DP.R.T.Sl'Tlfi':RLANfl

r •. al Farsh 1~,

Fort Coll"ns, Colo. ea Mr~ arshall:

OAI\LAND. CALIFOH~IA

July 3 , 1924.

e shipped to y sterda ne of ur e est net rs, # 1233, . 1 square foot orifice, co fficient • 64, ith gear co .tbinat · n

2 deci ,a The f o indicat r turns one con 1 .to revo1 t• for 5 c b"c f et. sending o th a e met r. e o ~d or not these ~cc ry ch· to have ca be o ta:n un ou ₀ ear r Cl.ose c...c ... urac

, t.at the ·nt rJ.ed.iat

igher than 100%, t cur s co t ion e have endeavored ide range of c 1i ly f ...,t, er 0 0 too

leaKag thru the structure, etc.

th . t r, ·

ounted on ·nside, ·ust e.

iv more uniform s eed to the turbine, for

8 'IV e e s. ate ~1 o Fassi t r n l,.e c ta~n a of this d·sc ·a to na. c re a.in. Very ruly y ur , t

UIH~Fl'Oii~

Jl.,l, l,Y,t N, f'l•l,,.ll,Pf!

!\f,nJmr J,~l"ifJUlt, \'iH l'ili-'"llll'lliT

l~ll,JVI',~UTtl~\llkANU

Mr. Ralph Parshall,

AL-l- KINDS OP LIQUID METERS

0 .. \ lU4<\ N n I Cr'\ J .. I J•~() H N 1.·\

November 5, 1924.

United Stated Dept. of ~griculture,

Bureau of Public Roads,

Fort Collins, Colo. Dear Mr. Parshall:

Referring to your letter of August 6th. in which you stated that your laboratory would be tied up until about November 1st. in connection with evaporation experiments, we are wondering if you now have these experiments completed and are able to

proceed with a test of our meter which was shipped to you July 30th.

Very truly yours,

GREAT WESTERN METER COMPANY

DIRECfORS R. J. lYMAN, PltEStOENT

ALBERT LEISURE, VJcs-P!UiSIO&NT

JAMES R. LITTLE, VtCE·PkliSIDENT

U.S. Dept. of Agric.,

Bur. of Public Roads, Fort Collins, Colo. Gentlemen:

METERS

OAKLAND, CALIFORNIA

Jan. 21, 1924.

Great Western 1rrigation meters are a necessity. They ·nill

S)lve your water problems. Q1r meters operate day and night and keep for

you an accurate, compiled record in acre feet. Many irrigation companies

are adopting and installing them and they are giving universal satisfaction

when installed according to our instructions.

The price of our meters is very low because 1t is of the proportional

type, is very light, weighing only about seven pounds, simple in construction

Wl th few parts, and ~\'e are enabled to make such an attractive price because cf

the large quantity that we manuf&cture and because this meter is proJuced In our own factory where we have every modern facility.

. The materials entering into their construction are of the very best

.and are non~corrosive. Never before ha~ such a compact, useful, accurate

meter been cffered at such a lo>v price and under such a strong guarantee. Our

meters are made to fit in any standard weir or orifice and anybody can inst~ll

them by following our printed instructions, which accompany every meter.

There is no time liJ~e the present to try :them. Why not send us· &n

order now? You will never regret 1 t. We inv1 te you to .~rite us. Won't

you tell us now about your needs 1n our line? We know we can help y-.:>u.

Ycurs truly,

GREAT WESTERN METER CO.

6G;

y i

"'(

FOS518Lt: ReLATIONS or

SUBfVI~!rGED

0/Pir!CL

INSTPLLATION INSTRUCTIONS GREAT yTESTERN SUBMERGED ORIFICE METER

1. In e&ch box should be found the following:

1 complete meter.

1 guide frbme- single groove- fer meter.

1 screen- course mesh.

1 screen- fine mesh

1 guide frame- double groove- for screens.

12 wood screws ( or six bolts with nuts and washers)

/

2. Stamped on the meter cover is the orifice area and also the co-efficient the meter is'ge2red for. If & meter is installed on any other orifice area, or an orifice h&.ving a different cceffic1ent of discharge than the one indicated, it is necessary to make compensations accordingly. On account of the danger of over-looking these compensations it is not 2dvisable to inst~ll a Great Western Meter on any other than the orifice for which the meter is geared.

3. To install a Great Western Submerged Orifice meter, tools should be provided to cut a hole 4 in. s-:..:.uare thru the orifice wall, and to fasten the meter guides and screen guides to the wall of the structure. ( For wood a bit a..nd bre.ce, saw, hammer, chisel, screw

drive·~ For steel a breast dr1ll and drills, including 1/4 in. drill, hammer, chisel, and small wrench. For concrete- hammer, star drill, screw driver and material for plugs.

4. Cut an opening 4" X 41' at any point 1n the orifice structure where it is always certain to be submerged on the lower side at least one inch at minimum flow. Someti~es this opening must be at the side of.the orifice. If at minimum flow the top of the orifice is submerged six inches this 4" X 4" opening may be cut above the orifice.

(Note: Great Western Orifice meters may be installed in any manner or in any position ~n an orifice structure so long as the same effect1 ve pressure head of the orifice is made to opercte on the meter. P., meter reservoir may be built In the bank between

the structure win~s to obtain this condition If desired.)

5. P. ttach the two guide frames, the meter guide frame on downstream side, and screen frame on upstream side of structure wall. Each should be set centre.l with the 4" X 411 _{opening just cut, and with} top of bottom rail or stop flush wirth bottom of the 4" X 4'' opening· For steel orifice, use three bolts on each side, each passing thru two guides and the steel plate.

6. trs-e -three bolts on- e~cll-side-, -e-~ p~S"B'i-ITg hrti"' tWo:-~deB and the 00-a,Fd-&~ ~t'uG.ture~ With ;?Uide frames in pl.gce insert coarse screen upst~Beam in double groov~ guides, fine screen doV'rnstream 1n

same guides, and then place meter in single groove guides. The screens placed in this order prevent trash getting into· the meter.

( o

__

·if :.ce (,)

7. The installation should be closely ir.s1_-:ectcd for crr-cKr or o:·en

ings where the trash might enter, and all such openin1-~s ce: refully closed. Where the water is very trashy, there may need to ~c

provided an additional screen of 3 to 5 square feet area, of rn.3sh

same size as the finer screen, to be placed around the small

screen installation. This will protect the meter, and at the same time pass sufficient water to operate it properly.

S. Where there is danger of tampering with the meter, a box, open a.t

the bottom, with hinged and padlocked cover, can be built qround

the meter. The cover should extend ov~T the screens to prevent

their removal for access to the meter by unauthorized pe;r;s.ons.

9. To check the meter, using Flow

Indicator:--Stamped .on the cover at the rmght of the "Fl~,w Indicator~' is tL.e number of cubic feet of water passing the orifice fer revolution otl the Indicator Wheel. If;;1 for example, 17.0 a r:rears in t~is

space to the right of the indicator, and the indicator is t urni r..~_r 10 revolutions in 1 minute then 10 x 17 or 170 cubic feet are -,:[.sr·

-ing the orifice per minute or 170 ( cu. ft.)

=

2.03 sec. ft.

60 (seconds) 10. To check the meter, using Main Counter:

The quantity ptss ing thru the orifice may also ce determjned by

observing the time required .to turn up 1/10 cr 1/100 of an e,cre foot on the main counter, If, for example, 2 1/2 minutes are

required to register 1/100 of an acre foot (435 cu. ft.), then

Q5 ( cu. ft.)- 2. 90 sec. ft.

15 0 (sec onds )

-11. Blueprints of standard types of orifice structures are avs.ilab::.e

and may be secured from the Great Western iJieter Com}!any en re(_!'uest.

Any inquiries relating to installation of our ~eters will be

giyen prompt and cheerful attention, and our C0~·f8r;;t'inn is offE:rGd

in any problems concerning the measurement of irrigation water not covered by the above.

- . .

• : . 1.

. .

.- .

-PROTEC77NG

Tf!E METER

Test No. Date

!f/'24)

7/f-tJ

1

7/?-/

7/1-Z

7/?3

714-4

7/~ 7/¢-G, 7/4-7

711-3'

!I/? _¥ I 7/?-? 7/s-O I 7/67 71SZ 7/...?3 7/.S1-j _71~ 7~ 7/57 71SY 2/ 7f..!7?

I

No 7/ (;, 0 7/~1 7/'C.. 7/6,31 Time I ' ' 0 f ~. ()

/-RECORD

SHEET

HOOK GAGE READINGS

Hydraulic Testing Laboratory Ft. Collins, Colo.

~---~----~---+---Tank X Temperature

I

Tank Y ~~----~---Temperature Tank Z --~---Temperature

Obs. Cor. Initial Final Obs. Cor. ...,..__Initial Final Obs. Cor. Initial Final

In 1-u~l (-,, I D a.ou 1 D o.{p 7 El. 4.52 a F/.04.3 Oo.6 4 E /.9 !:.. /. %() 4 /.' - tJ

c

/.

3?..;-Do .9~ o R /J·..s

o oo.

o.a?~ p I· ~..j C I. C, ~ ·;A Page No. ____ / __ _