Patent GB-191507780-A (GB)
Title: Improvements in Apparatus for Selecting and Separating Warp Threads in the Preparation of the Warp for Looms for Weaving.
Inventor: MOORE ROBERT
IPC: D03J1/14
Filed: 1915-05-26
Abstract: 7780. Moore, R., and Avery, A. May 26. Healds and reeds, apparatus.-In apparatus far selecting and separating warp threads for threading through loom healds and reeds by hand, the selecting and separating operations are performed automatically in a carriage driven across a frame supporting the warp, the healds, and the reed, by an electric or other motor mounted on the carriage, and feelers are provided for stopping the traverse of the carriage at intervals to prevent undue crowding of the unselected warps and to stop the machine if the warps are separated faster than they can be dealt with by the operator. In electricallydriven apparatus, the warp beam F, Fig. 2, is supported by hooks f<1> in the frame E, and the warps f are passed over rollers f<2>, f<3> to a clamp f<4> mounted in arms f<11>, which may be held by catch levers f<15> in the positions shown in dotted and full lines for the insertion of the warps in the clamp and the operation of the machine respectively. The roller f<3> is notched to receive a suitably-secured clamping-bar is and may be turned by hand gear f<7>, f<8>, f<9> to tighten the warps. The carriage A has wheels running on rails a<2> on the frame E, and carries an electric motor G with flexible leads and a switch. An electric lamp k and a switch therefor a.re also provided. Through worm gearing, the motor drives a sha.ft g<2>, Fig. 5 (which is an under view of the carriage). An eccentric b on the shaft g<2> oscillates a slotted lever b<2>, pivoted at b<3> and having pivoted thereto a holder b<4> for a warpselecting hook B, which is acted upon by the lever b<2>, an abutment b<7>, and a spring b<8> in such a manner that it is moved against the unselected warps, seizes one with its notch b<5>, and deposits it between the teeth of two spaced ratchet-wheels D. The carriage is moved towards the unselected warps by a ratchet-wheel h<7>, secured on the axle of its front wheels and actuated by a pawl h<6> on one arm of a weighted lever h<4>, which is rocked in one direction by the end h<3> of a centrally pivoted lever h<1> oscillated by an eccentric H. on the shaft g<2>, and in the other direction by the action on a projection h<8> of a bowl b<6> on the holder b<4>. If the hook B is unduly held to the left by the unselected warps, the bowl does not strike the projection h<8>, and the movement of the carriage is stopped. According to the Provisional Specification, a feeler separate from the hook effects this stoppage and also takes the threads from the hook and deposits them on the wheels D. A fingerlever h<10> is pressed to free the ratchet-wheel h<7> from its pawl to allow the carriage to be moved backwards when desired. The wheels D are rotated to present fresh spaces for the selected warps by a pawl d<1>, Fig. 4. on the lever b2, acting on a ratchet-wheel d<2>, for which a retaining-pawl d<3> is provided. If the separated warps accumulate on the wheels D faster than they are removed by the operator, the foremost thread moves a feeler C and, through a rod c, breaks the motor circuit. When a mechanical motor is employed, the feeler C may operate a brake or other stopping-device.