Patent GB-353687-A (GB)
Title: Improvements in the manufacture of plain or patterned tufted or pile fabrics
IPC: D03D39/00
Filed: 1930-07-21
Abstract: 353,687. Pile fabric looms. MORTON, J., Cragiehall, Cramond Bridge, West Lothian. July 21, 1930, No. 21974. [Classes 142 (i), 142 (ii), and 142 (iii).] Shuttleless looms with chenille wefts.-In weaving plain or patterned tufted or pile fabrics in which the pile is supplied in strip form such as chenille fur, X, Fig. 23, the pile is positively opened out as tufts, for example, as shown by Figs. 1-4, and Fig. 10a, by means of the pointed blades 120, Figs. 5, 10a, and 11 of a tuft separator E and then the catcher warps are introduced into the spaces between the tufts. The chenille may be laid on a trough-shaped bar 150, Figs. 5, 16, and 19, of a positioning device A. It is then cut into strips formed into V-shape and then carried by the device A to the open jaws 91, 92, Fig. 1, of a strip holder C on a carriage B moved on a guideway D by cam-controlled lever mechanism. The jaws 91, 92 are then closed by cam-controlled inclined slot-andpin arrangements described whereby the base of the strip is gripped with the pile tufts upstanding. The tuft separator E, movable on and with the carrier B, is then released by a trigger arrangement so as to be shot forwards by blade or other springs on the carrier B, its hollow-pointed blades 120 entering between and positively opening out the tufts on the strip X. The carrier B is then moved to the left on the slideway D, the catcher warps which passing through needles in a frame F entering hollow parts of the blades 120 and being thus introduced laterally between the pile tufts. A stop next restrains further movement to the left of the separator E, so that the blades 120 leave the upstanding tufts as the carrier B continues to move to the left. These tufts are gripped by a. gripper G and, after the jaws C have released the strip, it is carried by the gripper G to the fell of the fabric. The jaws of the gripper G are opened by means described when the gripper rises and closed when it falls. The gripper is carried by blocks 50, which are caused by lever mechanism 55, 56 controlled by a cam on a shaft 29 to slide on rods 51 on supports 52. These are moved up and down on guide-rods 53 by a camactuated strut 57. The shaft 29 is moved by operating a clutch automatically or by hand when the usual weaving mechanism has bound in the strip, and is stopped automatically after one revolution. It may be driven by its own electric motor. The chenille may be supplied from a creel 178, Fig. 16, and be laid by a spring-controlled stroup 160 through which it passes on to the trough-shaped bar 150, which is provided with spaced adjustable guides 152. The stroup 160 furnished with a spring-controlled pawl is carried on a carrier 161 reciprocated by means described between stops 166, 167 on a rail 164, the chenille being drawn from the creel when the carrier moves to the left, but passing freely through the stroup 160 when the carrier returns. A cam-controlled plunger 155, 154 descends on to the strip X, which is supported by light interchangeable slats 153 on the bar 150 and the resilient blades 152 form the strip into V form and force it beyond the slats 153 where it is retained until it is transferred to the strip holder C. The strip is cut by scissor blades described on the plunger 154, 155. Various modified means for supplying the jaws C with the strips are described. A modification is described wherein the tuft separators are carried by a fixed bar. The weft is inserted by a needle 79. Healds; shedding motions. The ground warps K, guided as shown, are shed by needles 66, 67 on bars 68, 69 supported by struts 70 on levers 72 operated by cams 73. The tips of the needles are guided in U-shaped upstanding guides 82 on a stationary bar 81. The warps K pass round the outer sides of the guides and are then threaded through the eyes 66a, 67a, Fig. 8, of the needles, whereby the warps K are disposed in pairs regularly spaced apart. The catcher warps J, guided as shown, pass through eyes in blades 40 of the frame F which comprises a bar 41 raised and lowered by camcontrolled lever mechanism. The ends of the frame F may be provided with vertical guides. Reeds; beat-up motions. The open-topped reed 63 is supported by levers 64 pivoted at 65 and carrying rollers engaging grooves in cams 61. According to the Provisional Specification, the needle frame for the catcher warps may have blades or needles acting as separators and moving towards and away from the loom reed.