Patent GB-190915660-A (GB)
Title: Improvements in and connected with Shuttle Motions for Looms.
Inventor: GENDRON JOSEPH AUREL
IPC: D03D49/46
Filed: 1909-07-05
Granted: 1910-06-02
Abstract: 15,660. Gendron, J. A. July 5. Picking-motions; shuttles.-In a positive picking-motion of the kind in which the shuttle is transferred from one to the other of two carriers meeting at the centre of the shed, the carriers are actuated by means of cam-levers actuated directly by the lay and mounted on the loom framing, the cam-slots in the levers being so arranged that the carriers remain at rest during the first portion of the rearward movement of the lay. The shuttle-holding parts of the carriers receive further movements upon the carrier rods, and are provided with pivoted latches actuated to secure and release the shuttle at the proper time. Each carrier 10, Fig. 1, is engaged by and slides within guides on the lay, and has a rod with a collar embracing a supporting-rod below the guides. Coiled springs on the supporting-rod act upon the collar at each end of the movement of the carrier, and impart initial impulses to the movements of the carrier. The carrier is connected by a link 11 to a lever 12, which is pivoted at 13 to a holder 14 having horizontal pivots mounted in fixed brackets 15. A cam-slot 18 in each lever 12 is engaged by a pin on the lay. As the lay moves rearwards, the pins first travel in the straight parts 18<a> of the slots without moving the levers 12, but when they leave the parts 18<a> they swing the levers 12 and thereby move the carriers inwards. Each carrier has an inwardly-projecting horizontal rod 21, Fig. 6, on which slides a shuttle-holder 22 and which may be guided by a post on the lay. The holder is connected by a link 31 to a lever 32 on a rock-shaft 33 mounted in the' carrier, and an arm 34 on the shaft 33 has a roll or pin 35 engaged in a cam-slot 36 in a plate 37 mounted on the lay. As the carrier 10 is moved, the shaft 33 is rocked and the holder 22 is moved along the rod 21. The shuttle 38, Fig. 14, has recesses 39 protected by wear-plates 40 and adapted to be engaged by latches 41 on rockshafts 42 mounted in bearings on the holders 22. The shafts are rocked in opposite directions when the holders are at the inner ends of their movements to cause one latch to release and the other latch to engage the shuttle, which is thereupon transferred from one holder to the other. Each shaft 42 has a pin 43, Fig. 12, engaged by a cam-slot 44 in a lever 45, which is pivoted to the holder and is held in either of its extreme positions by a spring 54. The lever 45 is moved to rock the shaft 42 by a pivoted dog 51, which is oscillated by pins 50 on a slide-bar 47 on the rod 21. A plate at the end of the bar 47 has a finger 56, Fig. 6, which is moved to slide the bar by teeth 81 on a projection on a bar 61 supported on radius links 62. By. means of a lever 69, link 68, and crank 67, the bar 61 is given a longitudinal and vertical movement, so that the teeth 81 first release a spring-actuated latch 58 from the finger 56 and then engage and move the finger. The crank is at the proper time moved from one extreme position to the other through the rotation of gear wheels 66, 65, 64, the wheel 64 having on its face pins adapted to be acted upon by a rotary arm 74, Fig. 1, on a shaft 71 geared to the crank shaft of the loom. The rotary arm also serves to free the wheel from the locking action of a spring-actuated lever. Instead of the lever 45 and spring 54, a pivoted notched piece containing a cam-slot similar to the slot 43 and having a rounded part adapted to be locked by pins on a spring-pressed sliding plate may be used, the sliding plate having a notch and being moved together with the pivoted notched piece by the dog 51. Beat-up motions; reeds; lays.-The reed 82, Figs. 1 and 6, with an attached weft grate 91 is moved in guides transversely of the lay from the front to the rear of the shuttle path during the first part of the backward motion of the lay, while the shuttle is at rest. by levers 86, 86<1> on a rock-shaft 86<2> mounted in front of the lay and rocked by a lever adapted to be acted upon by a fixed plate 90, mounted under the lay, and a slot in the plate. The reed is returned during the forward movement of the lay. Specification 15,663/09 is referred to.