Patent GB-191009385-A (GB)
Title: Improvements in or relating to Pulling-over and like Machines.
Inventor: MCFEELY RONALD FRANCIS
IPC: A43D13/00
Filed: 1910-04-18
Granted: 1911-04-13
Abstract: 9385. McFeely, R. F. April 19, 1909, [Convention date]. Lasting.-The clamping and holding devices of pulling-over and like machines of the type described in Specifications 7005/00, 9793/08, and 17,091/09, are arranged below the plane of the shoe bottom, and are connected together in such a way that the upper member engages the shoe first and then causes the lower member to be forced obliquely upwards into contact with the shoe. The devices are carried by swinging arms, as in the prior machines, and each comprises a padded last-support 15 swivelled on a rack 16, and a clamp 25 having an arc-shaped tongue-and-groove connexion with a second rack 22, which is geared to the first rack through a pinion 20. The clamp 25, as shown in Fig. 2, has two bearing faces 24 with a concave surface between them. A light spring 18 positions the devices as shown in Fig. 1, so that, when the swinging arms move inwards, the clamp 25 engages the shoe first, and then through the gearing described causes the last-support to move inwards and upwards into engagement with the shoe, such movement contributing to the stretching of the upper toward the edge of the last. To hold the last rigid after the grippers release the upper, and during the tacking operation, a locking-device comprising a pawl and ratchet-wheel 32, 30 is provided. The pawl is held against the ratchet by gravity, and is formed so that it will be disengaged from the ratchet by its inertia when the swinging arms move outwards. The Specification in the original form, as open to inspection under Section 91 (3) (a), comprises also improved wiper means, and an improvement in the tacking-mechanism. The wiper 40 is supported independently of the clamping- devices by the tack-carrying arm 42, which is actuated as in the prior machines. The wiper consists of a plate of a thin metal upturned at its front end to ride over the shoe, and notched for the passage of the tacks. It is loosely mounted on a stud 45 projecting from a block 43, which is removably carried by the arm 42, the arrangement being that the wiper can move endwise, and can also tilt upwardly about a fulcrum formed by an incline at the rear portion of the lower face of the block 43. The rear end of the wiper is formed with an incline 52, which has a seat for a spring-pressed roll 54 carried on a rod 55. The wiper advances with the arm 42, and rides over the edge of the shoe until it is stopped by the upper which is held by the grippers. The arm 42 then advances relatively to the wiper, causing the spring 56 surrounding the rod 55 to be put under tension, after which the arm 42 trips the grippers, and the wiper is projected forwards by the spring 56 to press the upper &c. hard upon the last bottom. During the backward movement of the arm 42, an arm 58 depresses the rod 55 so that the wiper is free to move under its inertia relatively to the arm 42 into a position where it will not interfere with the insertion of the next shoe. The arm 58 is hung on the same pivot as a tack shoot 70, which delivers tacks from tubes 72 into tack pockets in the block 43. When the arm 42 swings outwards, the shoot meets a stop 75, which causes the lower end of the shoot to swing into register with its tack pocket, which is then loaded. When the arm 42 swings inwards, a spring-pressed plunger 76 positions a forward extension 73 of the shoot over the mouth of the pocket; this prevents the tacks from jumping out of the pockets during movement of the parts into tacking position. The tack-driver, as it descends, engages the inclined upper face of the extension 73, and forces the shoot out of the driver path. This subject-matter does not appear in the Specification as accepted.