GB172107A - Improvements in or relating to finishing or other operations on leather goods or the like - Google Patents

Abstract

172,107. Bates, A., Reid, R. G., and British United Shoe Machinery Co., Ltd. Aug. 30, 1920. Roller apparatuts ; burnishing by compression.- The edges formed at the junction of two faces of attache cases, and like leather &c. goods, are finished by operating thereon with mechanicallydriven tools the abrading or burnishing parts of which are rapidly moving in a plane inclined to the faces which join to form the edge. The apparatus used comprises a scouring-roll 1, Fig. 2, having a flexible periphery on which a sheet of abrasive paper is secured. The work is positioned in a rest 2 having a lenticular slot opposite the roll and is adjustably secured to a member 9 removably pivoted at 10 for slight movement about a vertical axis to a boss 12. The rest is reciprocated by the boss 12 engaging a screw 13 driven through a clutch 20 from either of the oppositely rotating pulleys 21, 22. The clutch is operated by a rod 16 having collars 23 and cushioning-springs 24, one of which is engaged by an arm 15 on the boss 12 at the end of each traverse. Scouring the edge at anything but a small angle is avoided owing to the speed of traverse being slow compared to the peripheral @@ eed of the roll. After the edge has been abraded it is burnished by a heated iron 30, Fig. 5, rapidly oscillated about a shaft 32 by an eccentric pin 33. Lips 35 of the iron 30 are both inclined to the plane of its oscillation and the work is positioned against an adjustable plate 36, which lies in the same plane as one of the lips 35. The iron is heated by a gas flame in the usual manner, for example as described in Specification 27762/09, [Class 17 (i), Boots and shoes, Apparatus for making &c.]. According to the Provisional Specification, the finishing operations may be applied to harness, boots, &c.