Patent GB-101150-A (GB)
Title: Improvements in or relating to Machines for Finishing the Edges of Leather.
IPC: A43D8/34
Filed: 1916-08-05
Abstract: 101,150. United Shoe Machinery Co., (Assignees of Enslin, H. E.). Aug. 6, 1915, [Convention date]. Sheet material, finishing edges of.-A machine for shrinking, burning, or finishing the edges of pieces of leather for boot and shoe uppers, gloves, pocket-books, &c. is provided with a foot or other means to drag upon the work as it is fed forward and force its margin into position for operation upon by the tool, automatic work-supply mechanism which can be put into and out of action as desired, and an auxiliary feeding-means which may be used to feed the first portion of the work past the tool and present it to the main feeding-means. The work is fed past an electrically heated tool 137, by which one side of the margin is shrunk so as to cause the unshrunken side to curl towards the shrunken side. The main feeding-device comprises a turntable 53 flush with the work support or table, and a feed-wheel 57 mounted on an inclined shaft arranged to the rear of the axis of a grooved disk or moulding-member 55, against which the edge of the work rests, these parts being operated by gearing from a shaft 19 with a sliding gear to enable it to be connected with, or disconnected from, the main shaft 1 of the machine. An edge gauge 83 and the guiding-foot 85 are carried by a slide 87 adjustable horizontally on the frame of the machine, and can be raised and lowered by hand-levers, the guiding-foot 85 being also adjustable in the direction of feed. The shrinking-tool 137 is vertically adjustable on screw adjusted slides supported bv a slide or head 69, which can be raised by a lever 81 against the action of a spring 75, so as to raise the tool, when a piece of work is to be presented to the machine. At the same time, a projection carried by the slide or head raises the guiding-foot 85, which is normally held against the work by a spring-presssd lever. To enable the tool to act upon one corner of the edge as well as upon the margin of the work and to act as a gauge for the edge of the leather, a member 157 having a bevelled lip to bend and turn the edge of the leather is arranged on a slide carried by the head 69. When small pieces of work are being operated upon, and it is inconvenient to raise the head 69 by hand each time a piece is fed to the machine, the pieces are supplied by gripping-jaws 163, 177 operated by cam-projections on a spring-raised rotating sleeve 166, which, when the gripping-device is not in use, is held depressed by a pivoted plate 201. The grippers automatically operate the head 69 through levers 205, 209 and a pivoted cam 203, and raise and lower gauge pins projecting through the table. To enable the whole of the edge of the piece of work to be finished, a pair of auxiliary feed gripping-arms 227, which are normally below the surface of the table, may be operated by a treadle and a roller carried by the feed-wheel 57, so as to feed the first portion of the piece of work past the tool. The treadle at the same time operates a rod 259 and the levers 205 so as to raise the head 69. Specifications 26300/12 and 104,207 are referred to.