. American engineer and railroad journal . c Q I os;a. ijo o E- H 5 o•<!% Januabt, 1903. AMERICAN ENGINEER AND RAILROAD JOURNAL, 27 MACHINE TOOL PROGRESS. KUKDS AND DmVEN, ItY O. W. f)l)KUl. I. The term vaiiable-speed power-trausmission device as hereused is intended to refer to a self-contained mechanical ar-rangement interposed between a motor, or driving shaft, andI he driven shaft, or machine, whereby power in the form oflotative motion may be delivered from the driving sovirce tothe roceplive somre at speeds which may easily be changedwithout removing belts or changing gears in the sen
. American engineer and railroad journal . c Q I os;a. ijo o E- H 5 o•<!% Januabt, 1903. AMERICAN ENGINEER AND RAILROAD JOURNAL, 27 MACHINE TOOL PROGRESS. KUKDS AND DmVEN, ItY O. W. f)l)KUl. I. The term vaiiable-speed power-trausmission device as hereused is intended to refer to a self-contained mechanical ar-rangement interposed between a motor, or driving shaft, andI he driven shaft, or machine, whereby power in the form oflotative motion may be delivered from the driving sovirce tothe roceplive somre at speeds which may easily be changedwithout removing belts or changing gears in the sense couveyi dby the change gear method for screw culling in enginelathe practice. The ideal limitation of the variable-speedilevice is, of course, the arrangement whereby the speed oftransmission may be varied through an iiifinilc number iif. Hendey Machine Company, Torrington, Conn., to their Hen-dey-Norton lathes. Their arrangement of gears is that of anest of several gears of different diameters mounted on thedriven shaft and a small spur gear revolving with, and mov-able lengthwise on, the parallel driving shaft, which spurgear is capable of being thrown into mesh with any gear ofthe nest. Fig. 1 shows a general view of an 18-ln. Hendey-Norton lathe with this gearing device attached as shown at ^jg. 2 is a rear view of the device detached from the lathe, andl<Mg 3 shows it in section. N is the nest of gtars. all keyed tothe lead screw shaft S, and 1) is a splined driving shaftparallel to the shaft, S. whi,. inclosing the pinion O, which feathers into and thusrevolves with the driving I), and aso there is carriedin this frame another pinion. P. whic
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
