Report on the Trials of Implements at Reading. 
661 
a 
'-' g 
Was removed before a 
trial with the cuso 
open could be made. 
/One 9 - inch side 
\ branch only open. 
Two branches open. 
|A11 three branches 
\ open. 
(One side branch only 
\ open. 
rOpen fan on skeleton 
\ wood frame. 
7. 8. 9. 10. 11. 
Trials of Fans with Inlets and Outlets open. 
Horse- 
Power 
required 
to Work 
Fan 
when 
open. 
i-H-tiCO -l^fMCOt^ IM I-l Tti C5 (NO I— 1 CI50 
t— 1 i-H'^tlOOCO I-H iH 
Foot lbs. 
of Work 
per Minute 
required 
by Fan. 
3,652 
13,740 
11,000 
58', 5601 
7,320 
29,280 
57,600 
140,000 
201, COO 
213,000 
230,000 
7,840 
51,450 
3,960 
10,800 
54,960 
Calculated 
Volume 
of Air 
discharged 
per 
Minute 
by Fun in 
Cubic feet. 
liio 
481 
867 
551 
997 
1257 
849 
2522 
3028 
965 
207 
943 
393 
726 
811 
Mean 
Velocity 
of flow in 
said Inlet 
in ft. per 
Minute. 
•• 
2136 
1553 
2796 
1312 
2374 
2994 
1930 
2866 
2294 
2194 
984 
2858 
1310 
2420 
2702 
^Sizeand 
Area in 
Square 
Feet 
of Inlet. 
Tj4(MrH CM »tlOOCM-tli-HCnO 
»0 -CO - --tl - - -+l (X) CO --tl CM CO CO - 
5. 6. 
Trials with Inlet 
Closed. 
Foot-lbs. 
of Work 
required 
per Minute 
to work 
Fan. 
2,744 
2,436 
3,882 
18,320 
53,730 ; 
5, '240 
17,840 
93,600 
9,400 ' 
29,700 1 
2,400 
5,520 
18,840 
Differ- 
ence of 
1 'ressure 
in 
Inches of 
Water 
main- 
tained. 
00 lo CO o CO lo m 
O Tt<G50CO.-l<'.»i - • • • t^CO'^i-Ht-OS 
CM I-H uo I-H IM CM 
4. 
Speed 
of 
Fan in 
revolu- 
tions 
per 
Minute. 
o ooocMoooo o o o o oo o oo 
CM ooooicoooo -tl -tl -H (» oo o oo 
O TtiOOO— irfiCCO 00 00 00 O — 'O OrH 
^CMCM f-H i-hCMi-h rHIM 
3. 
Speed 
of 
handle 
Shalt 
in revo- 
lutions 
per 
Minute. 
OOOOOOOOO O ooo 
2. 
Diameter 
and Width 
of Fan. 
KH1 0*11 r~m 
c'OO- tH oi>-* 
^ rH g pH 
X x';|-'--"x - - -XXX - - 
.5o'-+<0 O O (NO-«t< 
'.M CM I-H CM CO I-H 1— 1 I-H 
1. 
Name of Maker. 
'^—^ ...... ./A ^ . . . 
.OQ bo ^ 
'm 2? (« C 
_Q -^o — OO'VCCH o o o go's oc> 
5 S S ^5 O O M 
O^CO O -t< -(<00 
OCOCO CM 0(35CM 
00 CM '.M CO CM CO o 
CO o «n CM -"tl 
