Patent GB-190219057-A (GB)
Title: Improvements in Machinery or Apparatus for Filling or Inserting Tufts of Bristles or other Material used in Brushes into Brush-stocks or Blocks.
Inventor: DITCHFIELD JOHN PETER
Filed: 1902-08-30
Granted: 1903-11-30
Abstract: 19,057. Ditchfield, J. P. Aug. 30. Machines for making.-Relates to apparatus in which bristles are formed into tufts of the required size, which are successively acted upon by a plunger so that a piece of wire 168, Fig. 14, is deposited upon each tuft 168<a>, which is then forced by the plunger into a hole in the brush stock, the wire engaging with the sides of the hole and holding the tuft firmly therein. Fig. 1 shows a front elevation of an open-fronted box, in which bristles are placed and pushed forwards into the required position by a movable false back j and are held in place by a vertically-movable plate l carrying weights n. A blade t having another blade u resting on its upper surface is thrust into the bristles so as to separate a horizontal layer lying on the floor of the box from the rest of the bristles, and the latter are moved upwards away from the former by raising the blade u to the position shown in the Figure, and the layer of bristles is then fed forwards by spiked projections on endless rotary chains 10, and passes down a passage 26 having an opening of a size which can be regulated, and about which are arranged arms 61, which prevent bristles from passing out of the channel before they are seized and held properly by jaws attached to a rod 34, which is horizontally reciprocated in a channel in the plate i. The jaws are automatically opened to receive the bristles, and are then automatically closed, and carry the bristles to a position above the filling-nozzle 45, Figs. 16 and 18, where the jaws are automatically opened and deposit the bristles. Fig. 16 is a front elevation and Fig. 18 a side elevation of the mechanism for cutting the wire and forcing it and the tuft into the brush stock. The wire 96 is advanced step-by-step by feed-rolls 97, 98, the speed of which is regulated according to the length of wire required. The wire is cut by a reciprocating punch operating against a die, and is pushed forwards so as to lie between fingers situated at the lower end of slides 130 and immediately above the tuft of bristles which has been deposited on the sill 127 of the nozzle 45 and gripped by fingers 153, and then the connecting-rod 69 presses the nozzle 45 downwards on to the brush stock placed in readiness below it, and the plunger 94 is forced down so as to pass between the slides 130 and remove the wire from the fingers and press it on to the tuft of bristles, so folding the tuft and forcing it and the wire down the nozzle 45 and into the brush stock. Means are provided for mounting the brush stock in place beneath the nozzle 45 and automatically bringing each hole in it, in turn, beneath the nozzle 45, and, in combination with this, another brush stock is similarly mounted and operated upon by a boring-tool, to form the holes for the tufts. Fig. 35 is a side elevation showing part of this mechanism, and Fig. 36 is a part vertical section on the line E-E, Fig. 35. One brush stock is clamped on a support 169, and the other on a similar support 170, both of which are adjustably mounted on supports 171, 173. The supports are embraced by and moved about upon pins 177 by a frame 179 capable of being moved laterally upon and longitudinally with two plates 180, which are fastened together by rods and are movable laterally upon fixed supports 184 attached to a table 185, on which is mounted the mechanism shown in Figs. 16 and 18. The movements of these parts are controlled by co-ordinated mechanism comprising cams operated by pins, which are successively engaged with a templet, in which are holes arranged in a similar manner to those in, or to be made in, the brush stock. The means for mounting, filling, and boring the stocks are stated to form no part of the invention. The Provisional Specification also describes the operation of a knife for separating vertical slices from the mass of bristles contained in the box, Fig. 1, and an arrangement of a toothed rod which may take the place of the spiked chains 10.