Wrought Iron

Description

This section is from the book "The English And American Mechanic", by B. Frank Van Cleve. Also available from Amazon: The English And American Mechanic.

Wrought Iron

7½ feet in length; flanges, 6x3½ ins. X 5/8 depth; area, 5½ square ins.; 50,000 lbs. produced no set; 58,240 lbs. produced a set of 1¾ ins.

White Oak

Rectangle 10 feet in length, 11 X 4½ ins.: 33,600 lbs. gave a deflection of .3/8 in.; 50, 400 lb. gave a deflection of .5 in.; 67,200 lbs. gave a deflection of 5/8 and with 78,400 it broke.

Transverse Strength of Cast-iron Girders and Beams, Deduced from Experiments in England and America. Reduced to a Uniform Measure of One Inch in Depth, One Foot in Length. Supported at both Ends; the Stress or Weight applied in the Middle.

SECTION OF GIRDER OR BEAM.				Fiances.		Width or Vertical	Depth of Girder.	Breadth of Girder.	Area of Section in Centre.	Breaking Weight at Length of one foot.	Strength per 8q. Inch of Section.	Value for Breaking 1 W Ad
SECTION OF GIRDER OR BEAM.				Top.	Bottom.	Width or Vertical	Depth of Girder.	Breadth of Girder.	Area of Section in Centre.	Breaking Weight at Length of one foot.	Strength per 8q. Inch of Section.	Value for Breaking 1 W Ad
				Sq. Ins	Sq. Ins.	In.	In.	In.	Sq I	Lbs.	Lbs.	Lbs.
		Eq. area of flange at top & bottom,		1.75X.42 -.735	1.77X.39 =.69	.29	5.125	L77	2.82	80150	10768	2100
		do.		2.02 X.515 =1.015	2.02X.515 =1.045	.51*	2.02	2.02	2.59	10276	3952	1900
			Area of sec of top & bot. 1 to 6,	2.23X.31 =.72	6.67X.66 =4.4	.266	5.125	6.67	6.28	117450	18852	3650
				................	5 X.8 = 1.5	.365	1.56	5.	1.96	7280	8714	2350
				5 x.3 =1.5	.................	.365	1.56	5.	1.96	2366	1213	760
				5 x.3 =1.5	.................	.365	1.56	5.	1.96	2366	1213	760

				...................	28.9X3.12 =74.56	3.3	36.1	23.9	183.5	8066240	43958	1200
				5 X.5 =.25	1.5X.5 =75	.5	4.†	1.5	1.	19080	19980	5000
				1.5X.5 =.75	.5X.5 =.25	.5	4.†	1.5	1.	7252	7252	1800
				4 X2 =8		2.	4.	4.	12.	33600	2800	700
				5.1 X 2.33 =11.88	12.1X2.07 =25.04	2.08	30.5	11.1	90.8	4793800	52795	1700

	Rectangu- lar Priam.			..................		.994	2.012	2.994	2.025	9440	4662	2350
		Open Beam.		1.005X.98	1.005X.99	1.005	2.51	1.005	1.98	12340	6282	2450
				.995x1.01	.995X1	.995	3.01	.995	2.	15420	7710	2550
				1.005X.98	1.005.X.99	1.005	.4	1.006	1.98	21765	10992	2700
				771X1.51	•771X1.5	.771	4.04	.771	2.322	25705	11070	2750
				1.507X.74	1.507X.74	1.507	4.04	1.507	2.23	25735	11540	2850
				1.525X.78	1.525X.78	1.525	4.07	1.525	2.35	80000	12689	3100
		Square Prism, Stress at Side, Cylinder,				1.02	1.01	1,02	1.032	2635	2552	2500
		Square Prism, Stress at Side, Cylinder,			............................	1.122	1.122	1.122	.989	2370	2396	2150
		Square Priam. angle tip.		................		4431	1.443	1.443	1.041	2269	2182	1500