Patent GB-189918530-A (GB)
Title: Improvements in or relating to Punching and Eyeletting Machines.
Filed: 1899-09-14
Granted: 1900-09-14
Abstract: 18,530. Pearson, M. H., and Pearson & Bennion. Sept. 14. Eyeleting.-Relates to a punching and eyeleting machine in which both sides of the upper are treated simultaneously. The axle 4, Fig. 3, which drives the machine is connected by a friction clutch to the driving-pulleys 5, which are loosely mounted thereon and have a friction ring 10 which is engaged by a similar surface on a disc 6 mounted on a keyway on the axle 4 and pressed against the pulley by springs 11. The disc 6 can be withdrawn and pressed against a fixed brake disc 18 by means of a sleeve 27 mounted free to slide vertically on the hub of the disc 6, and provided with inclined surfaces which engage similar surfaces on the disc 18 and, when the sleeve is depressed, force the disc 6 against the brake disc 18. A spring 30 presses the sleeve 27 upwards, and a pawl, pivoted to its lower end and connected to a treadle (not shown) so that it can be turned into engagement with an eccentric ring 32 on the hub of the disc 6, allows the sleeve to be readily depressed so as to stop the the machine. The upper to be eyeleted is placed with one flap on each side of a guide-plate 40, Figs. 2 and 5, secured to the frame and provided with adjustable guide-plates 43 by which the distance of the eyelets from the edges of the upper is adjusted. Arms 47 of bell-crank levers 47, pivoted on axles 49 and caused to move together by the arms 52 being pivoted together, are normally pressed together by a spring 55 so as to grip the uppers, but are released when the uppers are fed forward by an arm on one of them engaging a cam on the axle 4. The punches slide in bearings in a frame 65, Fig. 5, pivoted on an axle 66 mounted in one arm of a bell-crank lever 69 pivoted on an axle 70 and arranged so that one arm 71 engages a cam on the axle 4 and causes the frame 65 to be periodically raised after an eyelet hole has been punched to bring the setting-punch opposite the hole which has been punched. The tubular punches are screwed into sleeves 59 which slide in bearings 60 in the frame 65 and are normally pressed outward by springs 61 secured between pins 62 passing through slots 63 in the sleeves 59 and hollow bolts 59<a> as shown. The setting-punches each comprise a setting-die 75 screwed into a sleeve 74 sliding in a bearing in the frame 65 and pressed backward by springs 77 and 84 arranged so that the setting-die can yield somewhat. A pin 76 is provided to receive and guide the eyelet. A hard metal plate, secured to the frame 65 behind the guide 40, is formed with suitable surfaces to act as an anvil for the punches. The punches are actuated by arms 87 of bell-crank levers 87 pivoted on the axles 49 and having arms pivoted together to cause the levers to act simultaneously. One of the levers engages an actuating-cam on the axle 4. The uppers are fed forward after an eyelet has been set by the eyelet punches, the frame 65 being connected by links 91 to a lever 95 actuated so as to swing the frame on the axle 66 by a cam on the axle 4. The distance fed can be varied by means of a link connecting the junctions of the links 91 with a lever 109 which can be moved by means of a treadle so as to vary the angular distance between the links. The motion of the levers 109 is limited by stops 108. The eyelets are fed from a hopper 125 held vertical by a rod 129 to an oscillating drum 110, Figs. 2 and 12, containing a rotating brush 118 which feeds the eyelets into shoots 111 having slots 112 at their lower ends to enable the pins 76 to engage the lower eyelet when the motion of the drum carries the shoots forward. The shoots are actuated by means of an arm 116 engaging a cam on the axis 4 and pressed forward by a spring 115, Fig. 3. The shoots can be thrown out of action by moving the lever 109 until a pawl 118 carried by it engages the arm 116. The lever is secured in this position by a pin 120 engaging a hole 121 as shown. In this machine a hole is first punched in each upper, and then an eyelet is set and the upper fed forward, the punches returning to the original position. The Provisional Specification indicates a modification of the arrangement described in Specification No. 8477, A.D. 1891, in which the work is held in a flat position.