GB631898A - Improvements in or relating to apparatus for the cutting of cloth or other patterns - Google Patents

Abstract

631,898. Cutting patterns. UNIT TOOL & ENGINEERING CO., Ltd., and AUDCENT, G. A. J. June 20, 1947, No. 16270. [Class 31 (i)] Apparatus for the cutting of cloth and other patterns comprises a cutter holder attached to a movable part of a press and containing knives detachably mounted in the cutter holder either singly or in pairs, and co-operative means situated between the knives and the cutter holder enabling the knives to be spacedly pre-set in predetermined relationship, the cutter holder being adapted for use in association with a similar cutter holder, whose knives may be set at right angles or diagonally to the knives of the first cutter holder, so that in successive strokes of the press, patterns of the desired shape and size are produced. The knives may have crimped cutting edges. As shown, the cutter holders a comprise a base-plate b which is adapted to be secured to the movable head of a press and is secured to plates d, e by screws c. The plates d are secured to the plates e by locating pins p and screws o. Each plate d has a number of apertures d<SP>1</SP> providing a variety of positions for the knives through which project knife-retaining pins f riding in verticallyelongated slots g<SP>2</SP> in each end of the knife g. The base-plate b has a number of apertures bl similar to those in the plates d, and the knives are secured to the base-plate by screws h. Alternatively, the base-plate may have a number of slots formed in its underside for receiving the knives. The relative positions of the knives can be adjusted in the frame a by slackening the screws o and moving the sideplates d on the retaining pins p. The knives g have slots g<SP>5</SP>, to the upper ends of which are secured springs k. To the lower end of each spring is a bearing member m sliding in the slot g<SP>5</SP>. Each member m carries a pin l, which in the case of a single knife g carries two slideplates and with a double-bladed knife, Fig. 5, three slide plates j. The lower edge j<SP>1</SP> of each plate projects below the blade and serves to hold the cloth in position during the cutting operation.