. American engineer . tion and the thorough incasing of the movingparts. The general appearance and the arrangement of the variousparts are well shown in the illustration and reference needs to ncss of its work. .\utomatic safety trips are provided forhotli extremes of the movement of the head. The spindle is of high carbon crucible steel accurately groundand is fitted with Morse taper and cotter keyway. It is drivenby two long driving keys and slides in a sleeve with phosphorbronze bushings tapered to take up the wear. The thrust istaken on a ball bearing. The quick advance and return turn-st
. American engineer . tion and the thorough incasing of the movingparts. The general appearance and the arrangement of the variousparts are well shown in the illustration and reference needs to ncss of its work. .\utomatic safety trips are provided forhotli extremes of the movement of the head. The spindle is of high carbon crucible steel accurately groundand is fitted with Morse taper and cotter keyway. It is drivenby two long driving keys and slides in a sleeve with phosphorbronze bushings tapered to take up the wear. The thrust istaken on a ball bearing. The quick advance and return turn-stile is conveniently placed at the front of the head. A specialdevice is provided in the sleeve by means of which the spindlecan be held in perfect alinement after any amount of wear. The feed is composed of all steel slip gears and is entirelyenclosed. The changes are made by two handles in front ofthe casing without stopping the machine and a safety frictiondevice, adjustable from the outside, prevents accidents. The. Centralized Control Has Been Made a Special Feature of this Horizontal Boring Machine. be made to only a few of the more important features that arenot clearly visible. The bed is extra deep and is very well ribbed, giving it arigidity which makes the machine self-contained and a found-ation unnecessary. There are chip chutes arranged to carry thechips and dirt to the rear of the bed. .^n extra wide spaceis arranged for the seating of the hea\T box column which posi-tively insures its alinement. The head and the outer support are raised and lowered simul-taneously by a rapid power traverse by hand or by the elevating screw is suspended from a ball bearing at thetop to avoid buckling. This screw has been given special at-tention to insure the accuracy of the thread and the positive- rates of feeds are given on a metal feed plate and are the samefor the spindle, saddle or head in any direction, and the se-lection is made by one handle. This makes it impos
Size: 1978px × 1263px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
