Patent GB-190220754-A (GB)
Title: Improvements in or relating to Eyeletting or Analogous Machines.
Inventor: BOULT ALFRED JULIUS
Filed: 1902-09-23
Granted: 1903-11-23
Abstract: 20,754. Boult, A. J., [United Shoe Ma- chinery Co.]. Sept. 23. Eyeleting; lacing fastenings.-Relates to the construction and details of eyeleting &c. machines such as those described in Specification No. 18,530, A.D. 1899. The machine is so constructed as to be capable of punching both edges of a boot upper simultaneously and also of setting both eyelets simultaneously, the distance of the eyelets from the edge and also the spaces between the eyelets being variable. The eyelet feed may be thrown out, so that the punches can act to punch the holes for receiving lacing hooks or studs. The machine may also be employed for setting hooks. The machine is arranged with the operating-mechanism set at an angle of 45‹, Fig. 3. A is the die or anvil plate situated between the upper and lower punch and setting-tool holders. The punch and setting-tools are held retracted by spring arms, and are struck by means of hammer arms 83, 84, the heels of which engage by toothed sectors, the lower hammer arm having an extension 96 pro- vided with a spring yielding arm 97 carrying a cam-roller, which engages with the operating-cam 99 on the main shaft. The work is supported by a frame with holders on each side having leather faces, so that the work is held steady and is allowed to feed as required. The guide-bar is curved so as to allow of varying the distance of the eyelets from the edge. The feed-frame is first raised, to enable the punches P to be operated, and is then moved so as to bring the eyelet-setting tools to the required position, and is finally lowered to its normal position. A special support stud is arranged for the feed-frame, to prevent loosening, when it is desired to operate on one piece of material only. The feed-cam operating-lever is connected to links 50, 51, Fig. 10, which are con- nected to the link 112 pivoted to the arm 114. The arm 114 moves over the stop-pin quadrant plate 115, and is connected to a treadle through a lever 118 and chain 119. The motion of the arm 114 over the plate 115 produces a variation in the feed, so as to alter the spacing between the eyelets. The Provisional Specification describes a method, by the use of a star-wheel with recesses and bands, for varying the spacing, so as to set the eyelets in groups with small or large spacing, as desired. The eyelet box has rotating brushes supplying the eyelets through combs to the shoots C. The box is formed of two truncated conical portions fitted together to form a waist. The box has lugs by which it is mounted in an adjustable bracket. The shoots C are oscillated by arms 145 acted upon by a cam and eccentrically mounted with a throw-out device, so that, when desired, the delivery end of the shoots do not reach the operating centre. The machine is arranged so that the eyelet-feed throw- out takes place automatically on the completion of the second cycle of operations after the workman has depressed a treadle. The machine is pro- vided with a hand throw-out preventer and also an automatic throw-out preventer, to prevent the throwing-out of the eyelet shoots except at the predetermined time. The machine is provided with an automatic clutch, Fig. 4, which is operated by a cam 203 acting through a lever 200 and a toggle 204, 205 on the clutch-shifting lever 197. The driving-wheel 182, loosely mounted on the shaft 183, has a friction flange 187, against which a friction surface 188 can be made to press. The friction surface is double-coned, the other cone 190 engaging, in the stationary position, with a cone surface 191 on the frame of the machine. The friction surfaces 188, 190 are mounted as a wheel sliding on but rotating with the main shaft M of the machine, the hub or sleeve being provided with a loose collar in which the pins 196 of the shifting- lever fork engage. The toggle-arm 204 is provided with an extension 206 connected to a treadle through the rod 208, so that the toggle can be thrown out of line and the machine started from rest by the spring 199 throwing over the lever 197.