Patent GB-190124002-A (GB)
Title: An Improved Routing Machine for Printing Cylinders
Inventor: ROYLE VERNON
Filed: 1901-11-26
Granted: 1902-03-13
Abstract: 24,002. Royle, V. Nov. 26. Milling.-Relates to a routing-machine for printing-cylinders, in which the cylinder X, Fig. 2, to be operated upon (shown in dotted lines), and the rotary cutter Q are so mounted that any point on the cylinder can be brought under the tool. The cylinder is held by cones e', e<4> on a mandrel e<2> carried by headstocks E, E' on a slideway D. The cone e<4> is held at various places on the mandrel by a pin engaging one of a number of holes e<6> to suit cylinders of various lengths, and the mandrel is drawn through the cone e<3> by a draw-spindle f to grip the cylinder. The slideway D is carried by two screwed spindles d<1> engaging nuts b<1> in pedestals B<1>, the nuts being rotated by worm gearing C' and hand-wheel c' to adjust the slideway vertically for various diameters of cylinders, the slideway being steadied by arms d<2> sliding on guide-rods a<2> on the column A. The cylinder is angularly adjusted by a wire g passing over guide-pulleys g<1>, g<2>, and having one or more coils round drums G, I, its ends being secured to the halves of a tension drum H. The drum G is secured to a sleeve carrying the cone e<3>, and the drum I has a toothed ring i, Fig. 5, so that it may be rotated by a pinion i<1> and capstan-wheel i<3>. The capstanwheel and pinion are carried by a bracket i<4> having a hub mounted on a hollow spindle i<7> screwed into a carriage K on the slideway D. The spindle i<7> has a clamping-head i<8>, and the drum I is freely mounted on the bracket hub, thus allowing the height of the capstan-wheel to be adjusted to suit the operator by angularly adjusting the bracket. The horizontal position is adjusted by moving the carriage on the slideway and locking it by means of bevelled pins L pressed upwards by levers P, operated by a lever l<1> and set-screw l<5> screwing into the spindle i<7>. The tension drum, Fig. 8, is in halves, the half H being freely mounted on the half H<1>, which has a toothed ring h<1> gearing with a pinion h' on a pin h<3> on the half H. An arm h<4> on the pin is connected at its outer end by a spring to a pin h<5> on the half H, the spring tending to rotate the halves in opposite directions to take up slackness in the wire g. The half H<1> is secured to a spindle h engaging a fixed screw h<8>, so that the drum moves vertically, as it rotates, to prevent overlapping of the coils. The cutter Q of suitable form is carried by a spindle q on a slide n on a carriage N, traversed along a guideway M by a capstan-wheel 0, drum o<2>, and wire P having one or more coils round the drum. One end of the wire is attached to a post p fixed on the slideway and the other to a lever p<1>, pivoted to an adjustable pivot p<2> and put under tension by a spring p<3>. The axis of the capstan-wheel is adjustable round the drum o<2> in a manner similar to that described with reference to the wheel i<3> to move the wheel nearer to or further away from the operator. The slideway M is carried by arms m<1> on a rock-shaft m<2> supported in brackets a<1> on the column, and is operated by a rod T' and treadle t to move the cutter into or out of engagement with the work, the downward movement of the cutter being limited by stops u<1> engaging the slideway. The cutter-spindle is driven by belts r, r<1> from a shaft q<3> with fast and loose pulleys s<1>, s<2> and a belt fork controlled by a handle s'. The intermediate spindle q<2> is supported by an arm s on the bracket S, which supports the shaft q<3>, the spindle q<2> being connected by a jointed extensible rod q<1> with the cutter-spindle to permit of the horizontal and slight vertical movement of the cutter. The operator controls the angular adjustment of the cylinder by the wheel i<3> with one hand, the horizontal adjustment of the cutter by the wheel 0 with the other hand, and the vertical movement of the cutter by the treadle.