Patent GB-127364-A (GB)
Title: Improvements in and relating to Stripping and Cleaning Apparatus for Carding Engines.
Inventor: MCDERMOTT HENRY
IPC: D01G15/76
Filed: 1918-04-15
Abstract: 127,364. McDermott, H., and Couper, A. W. April 15, 1918. Carding - engines; feeding carding- engines.-In stripping-apparatus of the kind in which a stripping-roller is provided which is periodically moved into and out of engagement with the card cylinder during the normal working of the carding- engine, the devices which periodically move the stripping-roller into action are, during the inactive period, disconnected from the means which operate them, timing-means being provided to establish driving-connexion at the requisite times. The stripping-roller 11, Fig. 3, is supported in blocks 15, 16 sliding in guides 17, 18, and is raised and lowered by camgrooves 21 engaged by pins 19, 20 on the blocks 15, 16. The cam-grooves are formed in gears 22, 23 rotated in unison by gears 25 on a shaft 26, Fig. 1. Periodic movement is imparted to the gear 22 from a continuously rotated shaft 30 through a mutilated gear 40. The gear 40 is adapted to mesh with a gear 37 on an horizontal shaft 34 driven by worm and bevel gearing from the shaft 30. A spring-controlled lever 42 is pivoted to the gear 40 and is provided with a stud 44 normally resting on the periphery of a disk 45, which is driven through worm gearing 56, 53 from the shaft 30. The disk 45 is provided with a notch 45a into which the stud 44 drops and allows the end of the lever 42 to be engaged by a stud 38 on the gear 37. This advances the gear 40 sufficiently to cause it to mesh with the gear 37 and be driven thereby for a complete revolution, thus driving the gear 22 and raising and lowering the stripping- roller 11 to enable it to act on the carding- cylinder 10. As the gear 40 completes its revolution, the stud 44 engages the head 61 of a pivoted member 57 on the disk 45 to carry the head forward and mask the notch 45<a>, thus raising the lever 42 and preventing its operation by the stud 38 until the disk 45 has completed its next revolution. The feed of fibre to the carding- cylinder is increased during the stripping operation. The feed-shaft 62 is normally driven through a bevel-gear 64 loose on the shaft and pawls and ratchet-wheel 66. During the stripping operation, the rotation of the gear 25 operates a chain drive 69 to a sprocket 67 loose on the shaft 62, and imparts a faster drive through pawls 68 and the ratchet 66. The stripping-roller 11 is driven, whilst in operative position, through a clutch 80, 81, Fig. 3, which is closed by a camplate 86 acting on a grooved hub on the member 81 as the stripping-roller is raised in the guide 18. The stripping-roller is cleaned by a comb 90 operated by a crank-pin 95 on a multilated gear 96 adapted to mesh with a gear 83 rotating with the clutch member 81. The gear 96 is controlled by mechanism similar to that which controls the gear 40. The comb is arranged to continue to vibrate for a short time after the stripping-roller has been returned to the inoperative position. The stripping-roller is rotated slowly in the reverse direction, when in its inoperative position, by a gear 110 on the roller shaft which engages, when in its lowest position, with a gear 111 driven by a reducing-train of gears from the shaft 34.