Patent GB-190404474-A (GB)
Title: Improvements in Looms for Weaving.
Inventor: POALK JAMES LANE
Filed: 1904-02-23
Granted: 1904-04-28
Abstract: 4474. Poalk, J. L. Feb. 23. Shuttleless looms; vertical looms.-The warp threads are arranged in t w o series a, b. The threads a pass through a hinged frame a<3>, over a beam a<4>, and bet w e e n clamping- rolls a<5> carried by a pivoted frame c, Fig. 4. The threads b pass down the sides of vertical rods b<1>, through eyes b<2>, and then between the clamping-rolls a<5>. The frame c is swung from side to side of the medial plane of the loom by means of a connecting-rod and crank so that alternate triangular sheds are formed. The weight of the frame a' maintains the warps a under proper tension. Two continuous wefts e, f, Fig. 12, and short detached wefts g are inserted in the sheds by means of weft-carriers, which are received in, and picked from, boxes e<2>, f<2>, g<2>, Fig. 4, carried at each end of the swinging frame c. The weftcarriers are actuated by means of picking-sticks r, r<2>, r<1>, pivoted at each end of the frame c, and acted upon by pins p<3>, p<4>, suitably arranged on revolving discs p<1>, p'. The picking-stick r is in alignment with the pins p<3> of one disc when the frame c is in one position, and the picking-stick r<2> is in alignment with the pins p<3> of the other disc when the frame c is in its other position, and the stick r<1> is in alignment with the pins p<4> of one of the discs when the frame c is in either position. The weft threads e, f are supplied from spools located outside the loom proper, and pass through transverse holes in shuttle-shaped weft-carriers E, F. The weft-carrier G, Fig. 6, for the wefts g consists of an open-ended case g<3> with spring-jaws g', which are opened by a tube g<5> in the box g<2> to receive at one end a weft g, supplied through the tube g<5> from a spool at the side of the loom, and to discharge at the other end an inserted weft, supplied from a spool at the other side of the loom. Shears g<7> cut off each weft g after it is laid in a shed. The ends of the carrier G are bevelled, so that the carrier slips easily into the sheds. The weft threads are beaten up by a reed consisting of a series of fiat arms d<2> secured to a rotating shaft d' which is carried by, and oscillates with, the frame c. In the weaving operation, a loop of the weft e is drawn into a shed formed to the right of the medial plane, and the upper inoperative thread e<10>, Fig. 12, of the loop is drawn up by a lifter arm, actuated by links and cranks, into a channelway formed by notches b<10> in the vertical rods b<1>, so that, when the frame c is swung from right to left, the thread e'‹ is held in the notches by the warps a. A loop of the weft f is then drawn through the new shed, and the inoperative thread f<10> is similarly raised into notches b<11>. The shed is then reversed and a weft g is inserted. At the next reversal of the shed, the weft f<10> is freed, and, when its weft-carrier F is picked, it is drawn down and becomes an operative weft. In the next shed, the weft e<10> is similarly brought down by its carrier E. In the next cycle of operations, the carrier F is first picked.