Appleton's dictionary of machines, mechanics, engine-work, and engineering . LATHE. 189 LATHE, LARGE BORING AND REAMING. A very convenient and useful tool for boring andreaming locomotive and car wheels, pulleys, geers, &c. &c. It will turn out a hole straight or tapering,and spline the same, without removing it from the chuck. It is adapted to turning or drilling outholes, or boring, by using the shell boring-tool; all self-feeding. Fig. 2514 is a side elevation. Fig. 2515, end elevation, looking towards the face-plate. A, cone-pulley of cast-iron which runs on the live spindle. The spindle h
Appleton's dictionary of machines, mechanics, engine-work, and engineering . LATHE. 189 LATHE, LARGE BORING AND REAMING. A very convenient and useful tool for boring andreaming locomotive and car wheels, pulleys, geers, &c. &c. It will turn out a hole straight or tapering,and spline the same, without removing it from the chuck. It is adapted to turning or drilling outholes, or boring, by using the shell boring-tool; all self-feeding. Fig. 2514 is a side elevation. Fig. 2515, end elevation, looking towards the face-plate. A, cone-pulley of cast-iron which runs on the live spindle. The spindle has strong journals, runningin gun-metal boxes. A, geer on face-plate. B, geer on front shaft. o, shaft, thrown out of and into geer by eccentrics. C, face-plate, to which the work is fastened by means of bolts. D, upper cone for driving the feed motion. D, lower cone on the splined shaft which passes through the centre of bed-piece, giving motion tothe rack I, which can be connected with the spindle J, by the screw on top. F, head-stock in which the live spindle rests. G, swivel-post on which the tool-holder , bed-piece on which G stands. G, rest, with jaws, for using flat chills and reamers, adjusted by the screw on top. H, upper part of tail-stock, inside of which is the feeding apparatus. This piece rests upon a sliding-plate that is traversed crosswise by the screw L. S, worm which geers into a segment on side of tail-stock for giving the proper angle when a hole isto be turned out tapering. K, crank, with a bevel pinion on the inside end of its shaft, geering into a large bevel-wheel that hasan internal screw cut through its hub for fastening down tail stock to the bed. M, stand cast on the side of the lower piece of tail-stock, carrying a shaft and pinion geering into arack on side of bed-piece, for the purpose of moving tail-stock by hand. M, pinion, geering into rack. N, rack on side of bed-piece. O, bed-piece, cast with cross-pieces, and made very strong
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
