. Railway master mechanic . reference to thepins and counterbalance. The above clearlv indicates that there are cases of ir-regularity in the wear of tire due to the forces which arein action in operating the locomotive, and it is the purposeof this investigation to partially determine the nature,extent and influence of these forces. For this purpose Engine 316 was taken, the dimensionsbearing on the question being as follows: Diameter of cylinder, 16 inches. Stroke of piston, 34 inches. Diameter of drivers. 62 inches. Total weight on drivers, 54,000 lbs. Boiler pressure, 160 lbs. Cylinder pre
. Railway master mechanic . reference to thepins and counterbalance. The above clearlv indicates that there are cases of ir-regularity in the wear of tire due to the forces which arein action in operating the locomotive, and it is the purposeof this investigation to partially determine the nature,extent and influence of these forces. For this purpose Engine 316 was taken, the dimensionsbearing on the question being as follows: Diameter of cylinder, 16 inches. Stroke of piston, 34 inches. Diameter of drivers. 62 inches. Total weight on drivers, 54,000 lbs. Boiler pressure, 160 lbs. Cylinder pressure, 180 lbs. Cut-off, G inches. Speed per hour, 40 miles. Weight of reciprocating piirts, each side, 480 lbs. Weight of main rods, 269 lbs. Weight of main rod taken as reciprocating, 11 lbs. The total weight of reciprocating parts was conterbal-anced, the conterbalance being equally divided betweenthe wheels. With the above data table 1 has been computed, show-ing the forces in action at each ten degrees of a revolution,. This table shows L column the positi I back \ Table No ropces h aci/on on fng/ne J/^.moving at 40m/7esper hour. s Weight on Rail. Rotat,«eForce iSif ^ R B Total Pm -;?.^V 19 230 I3SOO 6JS70 £2 9IO ,o 62 30SPS2S3 . 091S 10 IS. 7CZ 17 iS7 n los If m IZi 30 IS Z37 II SiO 16 S2S S9 970 20967 IS9 so 16 Sll 10 SS9 IS 96S 2J 907 167 60 IS. 9 79 lo ns IS9-Z0 S9 113 21 37S I6S go ir 799 19-079 19 169 99 760 111 ?o 9 660 13 SOC IIZ I2S36 . I3S no II S*S IZ9SS 9 S9S ISI IXO II sss IZ-fSI lO I7S II SSO 96 19-1 /SO II S99 12 79-2 IOSS9 II 03i 9-S93S 20 009 ns 12 733 lOSSf . ISS ISO II 9f-S IZ S39 II sso 96 139 /6o i2 2ZS 12 OS2 IZ iS-7 9 S93 9-6 362 16 279 190 no 12 fH II. 799 I2S-36 9 7IS 96 999 119 I3S00 4-SZ92 •3 793 I90 II SIS 19-169- 9 lis issm .113 zoo II S9-S 19 SIS 9 S9i 16 290 IS 9-2 0 16 93g 2Z0 II S99 10 SS9 123 ZJO lf
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Keywords: ., bookcentury1800, bookdecade1870, bookidr, booksubjectrailroadcars
