. Railway mechanical engineer . n, which greatly increases its rigidity. Thebase of the machine is surrounded by a deep flange, whichmaterially stiffens it and serves as an oil retainer. The machine is made in 4-ft., S-ft. and 6-ft. sizes, drillingto the centers of 8-ft. 1-in., lO-ft. 1-in. and 12-ft. To sum up, die advantages claimed for this newradial drill may be stated as simplicity due to twin motordrive, concentration of all shafts in the head, elimination ofbevel gears and friction clutches for tapping, exceptional feedrange, a spindle operating on a true radial line vnth
. Railway mechanical engineer . n, which greatly increases its rigidity. Thebase of the machine is surrounded by a deep flange, whichmaterially stiffens it and serves as an oil retainer. The machine is made in 4-ft., S-ft. and 6-ft. sizes, drillingto the centers of 8-ft. 1-in., lO-ft. 1-in. and 12-ft. To sum up, die advantages claimed for this newradial drill may be stated as simplicity due to twin motordrive, concentration of all shafts in the head, elimination ofbevel gears and friction clutches for tapping, exceptional feedrange, a spindle operating on a true radial line vnth thecolumn, and a resulting low power consumption. JOURNAL COOLING COMPOUND If it was possible to obtain accurate figures of the directand indirect costs of cutting out freight cars in this countryon account of hot boxes, the total figure would probably besurprisingly large. Some railroads make a direct charge ofthree dollars each time a car is cut out on account of a hotbearing. Added to this there is indirectlv the loss due to. Cleaning Out a Hot Box Preparatory to the Application of MoliawkCooling Compound delaying other freight cars, and in case the car cut out isloaded with perishable freight the railroad may be liable fordamages. The estimated cost of removing and reapplying a pairof freight car wheels is six dollars, which together with thecost of machining of $, makes a total labor cost of$ on account of each hot box. The total labor cost, plusthe charge of three dollars for cutting out, gives a grandtotal of $, which may be estimated as the direct costof a hot bearing. While it is not maintained that a journal cooling com- pound can prevent all of the hot boxes and their attendantcosts, there is no doubt that if each freight train caboose isprovided with a supply of suitable compound, which is usedas soon as a bearing shows signs of becoming hot, manyhot boxes can be prevented and tjoxcs which do run hot willnot necessitate cutting out the car. A cooling co
Size: 1503px × 1663px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
