THE FAEMER's short-box MEASURING FLUME. 9 



Table 3. — Decimals of afoot for each one-sixteenth of an inch. 



Inches. 







A 



i 



■h 



i 



A 



f 



A 



4 



A 



s 



tt 



f 



H 



i 







0.000 



0.005 



0.010 



0.016 



0.021 



0.026 



0.031 



0.037 



0.042 



0.047 



0.052 



0.057 



0.063 



0.068 



0.073 



1 



.083 



.089 



.094 



.099 



.104 



.109 



.115 



.120 



.125 



.130 



.135 



.141 



.146 



.151 



.156 



2 



.167 



.172 



.177 



.182 



.188 



.193 



.198 



.203 



.208 



.214 



.219 



.224 



.229 



.234 



.240 



3 



.250 



.255 



.260 



.266 



.271 



.276 



.281 



.287 



.292 



.297 



.302 



.307 



. 313 



.318 



.323 



4 



.333 



.339 



.344 



.349 



.354 



.359 



.365 



.370 



.375 



.380 



.385 



.391 



.396 



.401 



.406 



5 



.417 



.422 



.427 



.432 



.438 



.443 



.448 



.453 



.458 



.464 



.469 



.474 



.479 



.484 



.490 



6 



.500 



.505 



.510 



.516 



.521 



.526 



.531 



.537 



.542 



.547 



.552 



.557 



.563 



.568 



.573 



7 



.583 



.589 



.594 



.599 



.604 



.609 



.615 



.620 



.625 



.630 



.635 



.641 



.646 



.651 



.656 



8 



.667 



.672 



.677 



.682 



.688 



.693 



.698 



.703 



.708 



.714 



.719 



.724 



.729 



.734 



.740 



9 



.750 



.755 



.760 



.766 



.771 



776 



.781 



.787 



.792 



.797 



.802 



.807 



.813 



.818 



.823 



10 



.833 



.839 



.844 



.849 



.854 



.859 



.865 



.870 



.875 



.880 



.885 



.891 



.896 



.9011 .906 



11 



.917 



.922 



.927 



.932 



.938 



.943 



.948 



.953 



.958 



.964 



.969 



.974 



.979 



.984 



.990 



0.078 

 .162 



.245 

 .328 

 .412 



.495 



.578 

 .662 

 .745 

 .828 



.912 

 .995 



SUBMERGED-FLOW DISCHARGE DIAGRAMS. 



~ The discharge diagrams, Figures 4, 5, 6, 7, and 8, for submerged 

 flow, are based on values computed from Formula II. These dia- 

 grams jvere used instead of tables on account of the difficulty of pre- 



.bu\ 1 1 1 1 1 1 mi 





— 



— 











^nf^ 



















-1 ftulzzzz: 



1—.40 













/ 





-t^ i^ 



n 











4- 2^ 







/ / / / / 











/ 



t t^ 







ri7 , t 



Lul 









L t 



/ 







tti^ 









1 





1 7 M 







^ '^tl 



.60 



( 





' 



i 1 



I I u 







11^ f 



z 









i 1 1 



' 1 







tttl- 





-'-y-~-i r 







t t-i 



1 -4-i 







tftt i 





1 







' 1 / 



/ / 







7jj 



^r.^ ~~~l" 



, 







/ / 



/ / / 







ttt 



o./iO -■ f-' 



^ ' 







t-i 



tit- 







tztt 



< :: -'-'- 



___ . 1 .. .1 







U4 i 



it 







—i-t 



UJ i- 



___/._.. t 







-Tt 



4^ 







zh 



-n- t n-- 



__-_-_._!_. .1. 







3 t-n- 



1 14- 







tt 



^ t 1 









4- l1 



t lX 







u 



__/__, 



■ "" "" "■) 







t-^ t- 



-'4 t 







1 



u- i -J 



"'""" t""' ( 







ui t 



4 t t 







7 



O d — -J 



■1'"'^^ :f ""7 







Fk^-: 



/ // / 







t 



il-J—- 



'H ' 







6] tl 



7</' 







r 



^ in i I -- 



'it J J t'7'" 







1 1 



/ ' 1 









2:.09|— ^^— ^: 



mi 



:::3:;::±: :: ::::i±:: 



— f— -/- iT-'l- 





^ 



i 



m 



# 





i 







1 









"3 .4 .5 .6 .7 .8 .9 1.0 

 DISCHARGE IN 



2 3 



SECOND -'feet 



Fig. 4. — Discharge diagram for a 1-foot farmer's short-box measuring fiume with a 4-inch weir, plotted 

 from results computed from Formula II. 



sen ting the data in tabular form. The logarithmic scale, which is 

 used for all the diagrams, simplifies the plotting and increases the 

 legibility for small differences in head. To illustrate the use of the 

 djagrams in finding the discharge, assume a 3-foot flume with a 2 by 



