HELICAL SPRINGS.
392
Tension Tests of Brake Lever Springs for 12" Mortar
Carriage.
No. of test.	Marks.		Height.	
		Unloaded.	Load of 244 pounds.	Unloaded.
10,274	1	Inches. 2.48	Inches. 3.93	Inches. 2.53
10,275	11	2. 47	3.92	2.55
10,276	111	2.50	3.99	2.59
10,277	1111	2.49	3.95	2.56
	Springs th	en loaded w	ith 50 pounc	Is.
10,274	1	2.53	Load of 50 pounds. 2.84	2.53
10,275	11	2.55	2.84	2.55
10,276	111	2.59	2. 89	2.59
10,277	1111	2.56	2.86	2.56