if eae ite Eat He Hs: 
ae ae an a HE cise He att at et alidiadaeee se eeettaeeceeeeeeeeee ee 
; _ a a cig (Shia Gianni 
oo fee ee eee 
ee le 
cance 
Freee ae af Fi - 
a oo fe 
Le - a co i _ | a 
— 
or) 
ro) 
LW) 
dite 
- if 
Deflections 0:000075 inch, 
Go 
aN 
oH Poet Saus=eeee 
BERS EE eee Ecc iris St 
Kary EH EEE eEEEE EE ro HEH HEHE —— ae 
sueguuvaraevessenatscevasietet? strscretswnssutt 
ae cr H Hs 
a 
—12 
0 2 4 6 8 10 12 14 16 18 20 
Revolutions per second. 
Fig. 18—Four Armed Wheel—Curved Arms. Curves shewing radial deform- 
ations at various positions on rim at rising speeds. 
No. 1. Arm AD. No. 7, Bay A, ‘45° from arm AD; No. 
No. 2, Bay A, 11°25° from arm AD; No. 8, 56°25°; No. 9, 61'87°; No. 10, 
3, 22°5°; No. 4, 33°75°; No. 5, 36° 56°; 64°68°; No. 11, 67°5°; No. 12, 78°75° 
No. 6, 39°37°, 
