. Railway mechanical engineer . ushedcenter bearing and also a regular pointed center, either ofwhich can be used for supporting the cutter arbor. Themaximum distance from the face of the column to thebracket is ll^/j in. A three-step cone pulley is provided as shown on theillustration and the driving belt should l)e 2 in. table is 24 in. long by Syi in. wide and is unusuallythick so as to withstand the strain when clamping on thework. There is a T slot j-i in. wide running from endto end and the table is provided with oil grooves on bothsides and an oil pocket on each end. As stated
. Railway mechanical engineer . ushedcenter bearing and also a regular pointed center, either ofwhich can be used for supporting the cutter arbor. Themaximum distance from the face of the column to thebracket is ll^/j in. A three-step cone pulley is provided as shown on theillustration and the driving belt should l)e 2 in. table is 24 in. long by Syi in. wide and is unusuallythick so as to withstand the strain when clamping on thework. There is a T slot j-i in. wide running from endto end and the table is provided with oil grooves on bothsides and an oil pocket on each end. As stated before, the machine is arranged for bothpower and hand feed, the power feed mechanism beingarranged to give .003 in., .006 in., .009 in., and .012 travel of the table per revolution of thespindle. It is driven by a 1-in. leather belt, which trans-mits the power through a four-speed gear box and a uni-versal drive shaft to a worm and gear under the table. Anautomatic trip releases this worm at the end of the The Bickett Horizontal Bench Miller The gears are thoroughly guarded to prevent power feed can be changed to hand feed at will, tliehand feed being arranged to operate either by means of ageared lever or handwheel. The screw elevating knee is of the box type, carefullyscraped and alined and is held to the column by a sub-stantial adjustable gib. It is raised and lowered by meansof an Acme thread elevating screw. The transverse andvertical feeds are both provided with adjustable dialsgraduated to read in one-thousandth of an inch. The regular equipment includes a countershaft fittedwith 8-in. tight and loose pulleys and the belts are arrangedto run close to each side of the tight pulley, thereby makingpossible a rapid change from one speed to the other. Thespecial equipment includes a 6-in. plain vise, a 2J/2-in. I)lain vise, a 25^-in. swivel vise, a draw-in. attachment,draw-in collets, a pedestal and a Fulflo pump and general di
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
