Patent GB-356429-A (GB)
Title: Improvements in or relating to brush-making machines
IPC: A46D1/08
Filed: 1930-08-14
Abstract: 356,429. Brush making machines. SHIPLEY, A. H. and BERRY, A. B., 72, Rutland Street, Leicester. Aug. 14, 1930, No. 24352. [Class 19.] Bristles 2, Fig. 4, stocked on end in a box 3, Fig. 1, are fed forwards towards a picking device 4 by a presser arm 1 which acts upon the material with periodical relief. There is also a tapping or beater device 19, Fig. 4, which drops on the top of the bristles 2 and aligns them. The arm 1 is urged forwards by a spring 5, or weight, connected thereto by a chain 6. The arm 1 is carried by a slide 8 connected to the chain 6, and on the underside of the slide is a rack 9 engageable by a detent 10 pivotally mounted at 11 on an oscillating lever 12. The detent 10 is controlled by a spring 13, and the lever 12 in one direction by a spring 14. The lever 12 oscillates in the direction of travel of the pressercarrying slides and in connection therewith is a trip bar 15 engaging a nose 10a on the detent 10. The lever 12 is actuated by an arm 18 in contact with a face cam 16 on a rotating wheel 17. Normally, the presser arm 1 is impelled forwards against the bristles 2, but as the cam 16 rotates, the lever 12 and detent 10 are drawn backwards. The end 10a of the detent 10 drops off the bar 15 so that the other end engages the rack 9 and thereby draws back the presser arm 1 with it in its backward movement. When the part 18 drops off the cam 16, the lever 12 is suddenly released and the presser arm 1 is allowed to strike the mass of the bristles and knock them together. As the lever 12 moves forward, the detent 10 is released by the bar 15 leaving the presser slide 9 free. In a modification, not shown, a movable slide is connected to an endless chain carried by pulleys. Arranged adjacent to one rim of said chain is an oscillating bell crank. One arm of the bell crank carries a spring-controlled member which, when permitted, can grip the endless chain. The lever is moved by a cam in one direction and by a spring in another. At the desired times, the grip member is operated to connect the oscillating lever to the chain and thereby actuate the presser arm. The cam 16, and similarly the cam controlling the clamp member connecting the endless chain with the oscillating lever, is preferably so timed as to leave the presser free at a period when the machine is in a favourable condition. When free, the presser can be moved back by hand. The tapper, or beating device, for levelling the ends of the bristles may consist of a plate 19 fixed on an arm 20 fulcrumed at 21 on a swivel rim or post 22 mounted on a cover-plate 23 of the machine. The plate 19 is lifted by a plunger rod 24 actuated by a lever 25 connected to the lever 12. Lost motion between the lever 25 and the rod 24 is allowed by nuts 27 to allow the plate 19 to rest on the ends of the bristles. The tapper plate is preferably actuated when the presser arm 1 moves back and drops with the forward movement of the presser. To enable the presser to be withdrawn, it is movably mounted on a member 30 slidable on the block 8 and controlled by a knob 33 associated with a pinion and rack. Specification 356,416 is referred to.