. Design of a portable pneumatic riveter. No Area Mom, Mom. Ct cc leg. h Ah2 I Io n. Tc 1 6 • 8# 475 1 1 2 8 2 204 7 4 3 0 0 501 5 5 36 .85 Substituting the values of Table I in formulas (2) to (9)inclusive the following values were obtained P = 66000 lb. e = in. 0 _ 66000 x _ ,,onn n, / . S+- = = 11800 sq. in. 1 175 * 66000 x / Sc - ^ _ = 14250 sq. in. 145 s, = 66000 = 1?90 lb#/ in#Z Max. S+ = 11800 + 1790 = 13590 sq. in, -TO. Max. S =
. Design of a portable pneumatic riveter. No Area Mom, Mom. Ct cc leg. h Ah2 I Io n. Tc 1 6 • 8# 475 1 1 2 8 2 204 7 4 3 0 0 501 5 5 36 .85 Substituting the values of Table I in formulas (2) to (9)inclusive the following values were obtained P = 66000 lb. e = in. 0 _ 66000 x _ ,,onn n, / . S+- = = 11800 sq. in. 1 175 * 66000 x / Sc - ^ _ = 14250 sq. in. 145 s, = 66000 = 1?90 lb#/ in#Z Max. S+ = 11800 + 1790 = 13590 sq. in, -TO. Max. S = 14250 + 1790 = 16040 esq. These maximum values are within the limits given in thespecifications and the section therefore can be used. 45 DEGREE dimensions shown in Fig. 3 -ere assumed and the prop-erties of the section were calculated and the results weretabulated in Table Fig. 3 TABLE II. No Area Mom. Ct leg. h Ah2 I 1411 66000 x = 15500 sq. in. Max. = Max. S„ = Max. Ss = Max. S 66000 x = 1360 lb-/ sq> in> 12700+1560 ^(x^cp)2! (12700+1560 )S 14180 sq. in. 15500+1360 A/d^eo)2! (12700+1360)2 14270 sq. in. Y(1360)2+ (15700 + 156I? = 7150 sq. In. a =yU360)g - .(15500 - 1360)* = 7200 sq. in. These stresses are well within the safe limits and hencethe section assumed has the proper dimensions. VERTICAL dimensions shown in Fig. 4 were assumed and as in thecase of the previous se
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912
