Patent GB-190523634-A (GB)
Title: Improvements in Machines for Making Shafting.
Inventor: THOMPSON WILLIAM PHILLIPS
Filed: 1905-11-16
Granted: 1906-03-22
Abstract: 23,634. Thompson, W. P., [Muncaster, W. J.]. Nov. 16. Rolling; lathes.-In the machine shown in the Figures for producing highly finished and truly cylindrical shafts, tubing, &c., of accurate gauge, the work is passed through a hollow shaft carrying a spur-wheel E and a pinion gearing with three pinions d, Fig. 1, between three skew rolls H, which may be spring- pressed and which rotate the work and feed it along, through a steady rest T, past roughing and finishing tools and through a steady rest carried by a standard X, alternately through steady rests E<1> and past grinding-disks, and finally between polishing-rolls Q<1>, which are mounted, adjusted, and driven in the same manner as the rolls H. The rolls H are driven from a shaft C by gearing a, E, d and universal joints g, i consisting of disks G<5>, Fig. 38, with oppositely projecting wings at right-angles to each other to engage cross-slots cut completely through the shaft-ends g<3>, g<4> and closed by rings g<6>. The journal boxes J, Fig. 5, of the rolls H are simultaneously adjusted in the housings I, along ways which are tangential to a small circle concentric with the work, by means of cam rings K, racks L pivoted to rods r, a lever s, a rock-shaft M, a double-acting cylinder O, Fig. 12, or a single-acting cylinder and a weight u, and a three way cock S. The lower boxes J are kept against the cam faces by gravity but the upper boxes have hooks o to engage flanges n on the cam rings. The innermost position of the rollers is determined by adjustable set-screws c<3> and stops q secured in one or other of the notches p in the rings. When flanged rollers P, on one of the tie-bars l connecting the housings I, are moved laterally so as to clear the racks L, the racks can be disengaged from the cam rings K and the latter independently adjusted by hand. The piston of the cylinder O and the rods r are connected to blocks which are trunnioned in the arms of the rock-shaft M, and one of the rods r is fitted with a length-adjusting coupling w. The steady rest T, and each of the precisely similar rests E', consists of three skew rollers x, Fig. 12, tapered off at one end to facilitate the entering of the work, and carried at the centres or at the ends of shafts e<1> mounted in boxes V, which are simultaneously adjusted in radial slots in a standard U by means of a cam ring having ratchet-teeth engaged by a pawl g<1>. The boxes have hooks c' engaging flanges b<1> on the ring. The standard X, Figs. 18 and 22, has V-guides, fitted with screwadjusted wedge-shaped pieces for taking up side wear, for two tool-holders A', B', the bearing- surfaces of which extend well under the work, and in which the tools r', s<1>, v<1> are inclined sufficiently to allow of the cutting-ends of the tools being correctly shaped and presented to the work without their strength being reduced. The work is kept to the cutters r', s' by rollers or by a vertically and horizontally adjustable block C<1>. The standard X is also provided with a capped opening to receive a split ribbed bush Z, Fig. 24, corresponding in internal diameter with the work, and also with a pivoted arm Y which extends behind the work and upwards and carries a finishing-tool. w<1>, and vertically and horizontally adjustable rollers, the latter of which b<2> forms along with-the tool w<1> a gauging-device and is kept up to the work by means of a projection d<2> on the arm Y, a pin e<2>, and a spring-pressed lever f <2>. Each grinding-disk m<2>, Fig. 30, is mounted in a frame F<1> pivoted on the bearings S' of a shaft R<1> from which the disk is belt-driven, the frame being connected by a link K<1> and by a divided rod L', fitted with a length-adjusting nut M', with a frame H<1> which slides on a plate G<1> and on an upright I<1>. A roller J<1>, forming with the grinding-disk m' a gauging-device, is carried by a plate t<2> which is angularly adjustable in the frame H<1> by means of a projection u<2>, Fig. 31, and screws w<2>, and is kept in contact with the work by a spring z' and a rod attached to the frame F<1>.