Patent GB-426142-A (GB)
Title: Improvements in or relating to machines for and the method of skiving or reducing the thickness of welts, rands, soles and like parts of boots and shoes
IPC: A43D8/34
Filed: 1933-10-07
Abstract: 426,142. Boot - making machines. TOWELL, J. W., Monogram Works, Stamford Road, and ASHBY, C. S., 17, Burghley Street, both in Kettering. Oct. 7, 1933, No 27672. [Class 17 (i)] A machine for bevelling or reducing the thickness of attached welts, rands, and soles, comprises a rotary cutter and a work rest on which the work can be moved manually past the cutter, the work rest and cutter being relatively movable to facilitate the introduction of the work, and having adjustable means for regulating the relative approach of the cutter and rest according to the thickness to which the work is to be reduced. The work rest 10, disposed below a rotary cutter 3, is carried by a member 22 attached to the top-piece 13 of a vertical plunger 9 of square cross-section, sliding on a bush 11 clamped to the frame of the machine in a split lug 12. The work rest may be lowered to facilitate the introduction of the work beneath the cutter by depressing a pedal connected by a chain 19 to the plunger 9. On releasing the pedal, the plunger is returned upwards, so that the work is pressed against the cutter, by a spring 16 acting between the top-piece 13 and a collar 14, which is adjustable up and down on the bush 11, and the upward movement of the plunger is limited by a collar 17 which contacts with the lower part of the bush 11 or the lug 12. This collar 17 can be screwed up or down on the lower part of the plunger 9, and locked by a nut 18, according to the thickness to which the work is to be reduced, which may be indicated by suitable graduations on the collar. The work rest 10 is formed with a forwardly projecting lip 10<a> to enter the crease in the shoe between the welt, rand, or sole, and the upper, and consists of a substantially rectangular block slidable backwards and forwards, in dovetail engagement, in the member 22, by means of a screw 30 and lever 28 to vary the width of work to be reduced. The member 22 carrying the work rest is formed with a convexly curved base, dovetailed slidably into a similarly curved groove in the top-piece 13, so that the member 22 may be positioned horizontally, or tilted forward or backward to bevel the edge of the work, a screw 25 serving to fix the member 22 in any desired position as indicated by graduations on adjacent curved edges of the member 22 and top piece 13. In a modified form, the work rest may be made from an inverted channel member, the sides of which are clamped on to the head of the plunger 9 by means of a bolt and nut. The sides of the channel member, or the head of the plunger, may be slotted horizontally where the bolt passes through so that the work rest may be shifted or tilted backwards and forwards. The cutter is preferably of the milling type, with cutting edges parallel to its axis, or it may be of conical form, and is provided with a guard, (not shown), and a dust extractor fan 36. Instead of making the work rest movable relative to the cutter, as above, the cutter may be movable relative to the rest, or each movable relative to the other, and the means for adjusting the thickness to which the work is reduced may instead be associated with the cutter, or with both rest and cutter.