. Railway mechanical engineer . nearly constant tractive force at the tender draw bar duringsuccessive revolutions of the locomotive. The developmentof the tender truck booster has now progressed sufficiently toprove that these objectives have been attained. The tender booster, which has been patented jointly by]. A. McGrew, general superintendent of equipment and wayand T- T. Loree, general manager, comprises a four-wheeltruck fitted with side rods and a reciprocating steam engine,arranged to drive one of the axles. The engine which sup-plies tlie motive force for the booster is shown in Fig.
. Railway mechanical engineer . nearly constant tractive force at the tender draw bar duringsuccessive revolutions of the locomotive. The developmentof the tender truck booster has now progressed sufficiently toprove that these objectives have been attained. The tender booster, which has been patented jointly by]. A. McGrew, general superintendent of equipment and wayand T- T. Loree, general manager, comprises a four-wheeltruck fitted with side rods and a reciprocating steam engine,arranged to drive one of the axles. The engine which sup-plies tlie motive force for the booster is shown in Fig. Fia- 1—Booiter Engine Aatembled In Shop ■ lx)ilcr cajjacity, the volume of which is increased mate-rially by the of superheated steam. Second, to convertthe tender weight, unused as a motive agent, into a meansof obtaining additional tradive |>ower, the amount of depending on the speed and wheliier the a|)pli(atinnis madr <m one or bolh tender trui ks. Third, to obtain more Fig. 2—Booster Truck Before Frame Has Been Applied It is a simple two cylinder engine with 10-in. by On the main shaft of the booster cngme is apinion and on one of the tender truck axles is a large between them is a gear arranged to be throwninto mesli between the i)inion and the large gear by a bellcrank operated by a piston impelled by the sui)erheated steamforming the motive agent for operating the booster Fig. 2 the engine is shown mounted on the ijeforethe frame has been put in place. The two bearings shownin tiie foregr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
