. American engineer and railroad journal . ,.39713, \ ,245 * • ■ 29 ;-. ,83 , :i; ; ,,,(11211,781 1-,H6 10,! :i, ,316 SO 31 32 33 34 8,4708 1907,9157,700 9,317 9,0li9 35 36 8,, 11,1238,470| 9,210 lonld i(|,7K(| 37 8,2007,9697,7387,5077,3157,122 8,910 ;;;8 091 ) 118 10 U3 38 39
. American engineer and railroad journal . ,.39713, \ ,245 * • ■ 29 ;-. ,83 , :i; ; ,,,(11211,781 1-,H6 10,! :i, ,316 SO 31 32 33 34 8,4708 1907,9157,700 9,317 9,0li9 35 36 8,, 11,1238,470| 9,210 lonld i(|,7K(| 37 8,2007,9697,7387,5077,3157,122 8,910 ;;;8 091 ) 118 10 U3 38 39 40 41 8,4428,1907,9807,7707,5607,3927,1827,014 9,1458,8728,6458,4178,1908 0087,7807,5987,4627,2807,0986,961 9,8499,3,,3109,0638,8208,6248,3798,18:)8,0367,8407,6447,497 17,.W7IO.:i80 17, 16,,120 ( 13,40011,361 14, ,776 11, i 14,00013,104,13,65012 852 * ^* ,83516,,.,19711,92414,56014,19613,923 42 43 44 45 46 47 48 ••■ 49 50 1. lOO -200 I. Inch. Z. 700 Pounds. Deflection. Diagram of Working Loads and Deflections for Half Elliptic Springs. Plates/a to H incli thick and 1 inch wide, bands 4 inches wide. Example: Required the workingr load and deflection of a spring 40 inches long, Iinches wide, having 15 plates % inch thick. Follow the horizontal line 40 to its intersection with the curved line marked working load, % inch, then vertically to the ba.^e line, and read ofi195 pounds. Then 195 x 4 X 15 = 11,700 pounds working load Similarly tor the deflection, to the curved line marKed deflection ?s inch and then tothe Dase line and read off inches, the amount the spring vill deflect from the free to the loaded height, which amount is independent of the width andnumber of plates. For full elliptic springs the deflection is twice that given inthe table; the limit would be reached at 25 inches for %-inchsteel, and at 23 inches for 5-16-inct steel. For passenger engines
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
