Patent GB-190328043-A (GB)
Title: Improvements in Apparatus for Weaving Embroidered Goods.
Inventor: MONNET JEAN-BAPTISTE
Filed: 1903-12-21
Granted: 1904-11-10
Abstract: 28,043. Monnet, J. B., Beier, B., and Magnin, L. Dec. 21. Swivel looms.-In swivel looms, means controlled by jacquard mechanism are provided for actuating the ordinary swivelshuttle racks, for lowering the swivel frames, and at the same time preventing the action of the picking-sticks, and for laterally displacing the swivel frames. The swivel frame 1 is mounted on the lay by means of supports 2 passing through lugs at each side of the loom, and provided with gudgeon-pins 3 engaging in horizontal grooves in the frame support 68 to permit the lateral displacement of the latter. The swivel shuttles slide on plungers against which they are held by springs, and they are actuated in the usual manner by a rack, which adjustable bell-crank levers 17, 16 from a pivoted is operated through adjustable rods 15, 14, 13 and T-shaped lever 12. The lever 12 is rocked to the left or right according as it is operated by one or the other of two pivoted levers 5, 6, which are depressed by double-nosed cams, when bowls carried by bell cranks, pivoted to the levers 5, 6, are turned into operative position by cords from the jacquard. Screws 18, 19 on the ends of the levers 5, 6 act on the lever 12, and are adjustable to regulate the movement of the swivel shuttles. The end of the vertical arm of the lever 12 is kept locked by pivoted levers 26, 27, until one of these levers is moved by a chain 30 or 31 connecting it to a lever 5 or 6. The levers 5, 6 are raised again by springs 23, 24, and the lever 12 is returned to its normal position by one of two springs 32, 33. The supports 2 of the swivel frame are connected by adjustable wires 38 to pivoted levers which are acted upon by cams to raise and lower the swivel frame. The pivoted levers hold the swivel frame in the raised position until they are released from notches in bell-crank levers by the action of jacquard cords. When the bell-crank levers are moved, wires 47, connected to them, raise pawls 48, pivoted on the picking-sticks 49, out of range of noses 52, which are operated upon by the picking- stick operating levers 50. Thus, when the swivel frame is lowered, the levers 50 swing the noses 52, but do not operate the picking-sticks 49. In order that the swivel frame may be moved transversely according to the requirements of the pattern, the support 68 is upturned and slotted at one end. A pin 65, on the upper end of a vertical pivoted lever 66, is engaged in the slot, and by open inclined slots 64 in plates 62, adjustably mounted on upright rods 57, which are free to move vertically in suitable guides. The pin 65 is normally locked by a pivoted catch-lever 69. When the swivel frame is to be displaced laterally, a pivoted lever 73 is moved by a jacquard wire 75, so that, through an adjustable wire 77, the catch-lever 69 is disengaged from the pin 65, and a connecting-wire 76 is slackened to allow a spring 61 to act on a small bell crank 59 pivoted on one of the rods 57. The vertical arm of the bell crank 59 is moved into the path of the horizontal arm 54 of a bell-crank lever oscillated by a cam, and, as the arm 54 is then moving upwards, it engages the end of the bell crank 59, and raises the rod 57, so that, by the action of the inclined slot 64, the pin 65 and the support 68 are moved to the right. When the rod 57 is raided, the bell crank 59 is engaged by a catch 78 operated by the jacquard mechanism, so that the rod 57 is held in its raised position until the catch 78 is disengaged by the action of the jacquard. When variable displacement of the swivel frame is required, two or more plates 62 are provided, having their slots 64 cut at different angles. Each plate is carried by a rod 57, and a lever 73 is provided for each rod 57. A second rod 57 cannot be raised until the first rod is lowered.