Patent GB-678170-A (GB)
Title: Weaving machine
IPC: D03D41/00
Filed: 1949-07-11
Abstract: 678,170. Multiple vertical looms with automatic weft replenishment. KIENER, C. July 11, 1949 [July 27, 1948], No. 18302/49. Classes 142(i), 142(ii) and 142(iii) Looms, driven by a common shaft, some arranged side by side with shuttle-boxes overlapping and some arranged back to back ,form a compound machine. Driving arrangements. The drive from an electric motor 27a is transmitted to the individual looms through a common shaft 27, belts 28, and pulleys 29 on shafts 25. Each loom may be declutched from the main drive. Warp let-off and take up; warp stop motions. The warp 5 is let-off from a braked beam 6 and passes over rollers 9, 10, which provide a hoizontal portion to accommodate droppers for a warp stop motion. The cloth is drawn upwards by a take-up roller 15 and wound on to a cloth beam 7 which rises in slides 16. Shedding motion. The healds 12, 12' are moved by levers 17, 17<SP>1</SP> operated by eccentrics 18, 18<SP>1</SP> on the shaft 35 rotated by gearing from the shaft 25. The healds are returned by springs 19. Beat-up motion; shuttle race. The reed 13 carried by slay arms 22, which are operated by cams 24 keyed to the shaft 25 acting on rollers 26 on the slay arms, moves upwards to beat-up the weft. In its lowermost position the reed is stationary and forms a race for the shuttle and is provided with a shuttle guiding wall 21 lined with velvet. Shuttle e boxes. The shuttle boxes 30, 30a are aranged side by side and are povided with swells. Picking motions. A projection 39, carried by a member 38 on the9 shaft 35 acts on a roller 40 and, through a linkage 41, 42, 43, operates the picking stick 31. The picking stick is returned by means of a belt 46 and a coil spring 47. Automatic weft replenishment. Weft replenishment is carried out by change of cop or shuttle upon indication by a weft stop motion or weft feeler. The cops or shuttles are store din a magazine 104, and when a cam 112<SP>1</SP> raises an arm 109, one cop or shuttle falls on to a conveyer 61 which feeds all the individual looms. After weft replenishment, a deflector blade 64 moves across the conveyer and deflects the next cop or shuttle into a shoot 63. A cop is inserted in the shuttle by a hammer 51, operated by a lever 55 from a cam 58 which is rotated from the shaft 25 when weft replenishment is indicated. For change of shuttle, two shuttle boxes are provided. The boxes are lowered, and the full shuttle is picked from the top box and the exhausted shuttle is removed by an ejector from the bottom box. The boxes rise again and the new shuttle is received back into the bottom box. Another full shuttle falls into the top box from the shoot. The exhausted cop or shuttle slides down a shoot 66 to a conveyor 62 and is collected in a receptacle at one end of the compound machine. Weft cutting; holding weft ends. The weft ends from the magazine are held by a belt of card clothing 105 which is advanced, as each cop or shuttle is delivered to the conveyer 61, by a ratchet 108 operated by a lever 115 from a cam 112<SP>1</SP> on the conveyer. An arm 118 on the lever 115 operates a cutter 119 and cuts the weft end of the lowermost cop or shuttle The cut end is pressed by a roller 120 on to a piece of card clothing 122 and thus secured to the conveyer. Indicating loom stoppage. A centralized indicator may be positioned between four compound looms, and different coloured numerals, which are illuminated upon loom failure, indicate which loom needs attention and whether the failure is due to faulty warp or weft or to a mechanical fault.