Patent GB-356416-A (GB)
Title: Improvements in or relating to brush-making machines
IPC: A46D3/04
Filed: 1930-08-02
Abstract: 356,416. Brush-making machines. SHIPLEY, A. H. and BERRY, A. B., 72, Rutland Street, Leicester. Aug. 2, 1930, No. 23319. [Class 19.] The machine is provided with a rotary mechanism which separates desired quantities of bristles from the mass in a magazine and delivers them to inserting means. The rotary motion may be intermittent or continuous. Bristles are contained in a magazine 24, Fig. 3, and are pressed forwards by a finger 35 which may be controlled and actuated by mechanism as described in Specification 356,429. Sectoral plates 1, 3 are attached to a spindle 2 and sleeve 4 respectively, and are rotated intermittently so as to sweep past the magazine and collect bristles into a gap 22, Fig. 5, for delivery to doubling and inserting means. The spindle 2 has fast on it a pinion 7, Fig. 1, and the sleeve 4 has a similar pinion 8. Both pinions are in mesh with a driving spur wheel 9. Teeth are omitted from certain portions 10, 11, of each periphery of the pinions so that when the blank portion meets the spur wheel the pinion comes to rest together with the sectoral member 1 or 3. The pinions are connected by a lost-motion device which may consist of a pin 12 on the pinion 8 engaging opposite ends of a slot 13, or the pin 12 may engage suitable projections on the other pinion 7. This pinion driven by the same gearing picks up the stationary one so that it in turn is driven again by the spur gearing. A friction band or stops are provided to prevent overrun or back lash. Thus notches 14, 15 on bosses 16, 17 carried by the pinions are engaged at appropriate times by projections or stops 18, 19, Fig. 1, on fixed spring members, 20, 21. The sectoral plates are removable and may be replaced by others of different sizes. The gap 22 is thus adjustable or it may be altered by an adjustable plate. The spur wheel 9 is preferably continuously rotated by a spindle 24, countershaft 25, and bevel gearing. The countershaft is driven by a pinion 29, gearwheel 30, and clutch 31, hand-actuated. During the operation of the rotary device, each of the plates 1, 3 in turn rests so as to close the outlet of the magazine. The end of the magazine where the rotary picker is situated has a fixed plate 37, Fig. 3, with an edge concentric with the axis of the rotary element. The sectoral plates are of slightly greater radius than the fixed plate so that as the picker rotates they will sweep the bristles forwards into a slot 36 between the plate 37 and another one 38. This slot is substantially the path followed by the gap 22 in the picker except at the point 39, where there is a slight eccentricity formed to guide the bristles further into the gap 22. At the outlet of the magazine, there is a stripper plate 40 which in conjunction with the sectoral plate closes the outlet. As the gap 22 advances full of bristles, this stripper plate rakes off surplus bristles from the picker. While one of the sectoral plates, say 3, Fig. 3, is at rest against the magazine, the other plate 1 is making its rotary movement to sweep across the magazine to gather bristles into the gap 22 between the plates, which now advance together until the plate 1 becomes stationary in the same position as the previous plate 3. The gap 22 opens and allows the bristles to be taken bv feed mechanism, Figs. 6 and 7, comprising fingers 43, 44 reciprocating under a guideway 41. The fingers are each mounted upon a reciprocating bar or slide 45, 46. Prior to receiving a bunch of bristles, the finger 43 occupies a stationary position in front of the delivery point, and the finger 44 a retracted position. The gap holding the bristles is now constituted by the finger 43 and the stationary sectoral plate. The forward plate moves on, and the retracted finger grips the bristles and the fingers move on together to deliver the bristles to the inserting tool 42. The finger 44 has to retire to its rearmost position beyond the concentric guideway 36. At a suitable locality, an opening 47 is made in the guideway through which the finger can pass. This opening 47 and the guideway merge at the delivery point and a fixed tongue 48 is provided to prevent bristles leaving the guideway by centrifugal force. To prevent entanglement of bristles with the fingers and guideway, the fingers and sides of the guideway may be formed to overlap. The carrier fingers may be carried on bars 45, 46 sliding within each other and operated by cams &c. not shown.