POWER TRANSMISSION ED'EMENTS AND MECHANISMS 189 



13 „ 'springs 



32 outside diameter 



0.092"d;am^w(re 



Load = 814 Ib.per in. travel per turn 



Test=load 50to60 Ib.on 20in. rod lever 



Fig. 354. 



3l„ 12 springs 



64 outside diameter 



0.109 diam.wire 



Load 1,100 lb. per in. travel per turn 



Test = load 65 to 75 1 b.on 60 in. rod. lever 



Fig. 355. 



3,,. 20 springs 



64 outside diameter 



0.109" diam.wire 



Load 1,1001b. per in. travel per turn 



Test= load 65 to 70 lb. on 60 in. radius lever 



Fig. 356. 



