. Locomotive engineering : a practical journal of railway motive power and rolling stock . journals on the saddle, through which thevertical working spindles slide drill-spin-dle fashion, each spindle being universal-jointed at its top to its balance weightlever. Figs, i and 2. Each balance leveris prolonged in front of the spindle joint,and has pivoted to its front end, next theoperator, a suspended hand rod with ahand loop at the lower end, by which thespindle can be rapidly raised or lowered;the spindle quills are fitted with racks andpinions, the latter being driven from aworm and worm gea
. Locomotive engineering : a practical journal of railway motive power and rolling stock . journals on the saddle, through which thevertical working spindles slide drill-spin-dle fashion, each spindle being universal-jointed at its top to its balance weightlever. Figs, i and 2. Each balance leveris prolonged in front of the spindle joint,and has pivoted to its front end, next theoperator, a suspended hand rod with ahand loop at the lower end, by which thespindle can be rapidly raised or lowered;the spindle quills are fitted with racks andpinions, the latter being driven from aworm and worm gear driven feed shaft,which gives an independent feed motion toeach of the spindles. The lower end of each spindle has uni-versally jointed to it a downward tele-scoping extension, which can be placed at Fig. 3. WELLS STAYBOLT-SEATING placing the feathered clutch sleeve inmiddle position between the belted clutchpulleys. Each of the two horizontal beltsthus drives four clutch pulleys, two in thetop stretch of each belt and two in thebottom stretch, which brings the belt-looping idle pulleys (see Fig. 3) alter-nately top and bottom, and so permitsthe spindle centers to be adjusted closerto each other than if the pulleys were allfour of them driven from either the singletop or bottom stretch of the horizontaldriving belt. Each horizontal shaftscarries a bevel pinion which meshes witha large bevel driving gear splined on thetop end of a quill supported in vertical
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
