Patent GB-191225800-A (GB)
Title: Improvements in Hackling Machines for Flax and other like Fibres.
IPC: D01B5/00
Filed: 1912-11-11
Granted: 1913-09-25
Abstract: 25,800. Longworth & Co., and Shaw, P. Nov. 11. [Cognate Application, 9526/13.] Heckling-machines; feeding and transferring flax &c.-Mechanism is provided for automatically unfastening and re-fastening flax holders, such as those described in Specification 21,422/12, the plates of which are held together under pressure by reason of sliding pieces on one of the plates engaging with parts on the other plate, and for opening the plates for the purpose of removing, replacing, or readjusting the flax therein, the arrangements ensuring that the holders will hold the flax with a greater uniformity of pressure than hitherto. Fig. 1 shows the feeding end of the machine with a part b of the cross channel arranged to be raised and lowered for the purpose of removing and replacing the stricks of flax, the top plates d<2> of one or more of the holders being held in the raised position by a fixed slide P engaging with projections on the plates. For the purpose of unfastening and re-fastening the holders, the latter, while supported by fixed portions of the cross channel, are pressed by spring or weighted plungers E, and the sliding fastenings d are moved in one direction or the other by levers e, e', f, f<1> respectively. The parts are operated by cam-and-lever mechanism, which may be specially provided for the purpose, or the motion may be obtained from the shaft h<9> commonly employed for actuating the turntables. A suitable system of levers for operating the plungers E is shown in Fig. 2. The first effect of the rocking of the shaft g' is to cause the lever g<5> to turn about the pivot g<8> on the end of the spring rod g<6> and to bring the plungers E down upon the holders; further rotation of the shaft g<7> causes the holder plates to be firmly pressed together owing to the turning of the lever g<5> about the pivot g<9> and the resistance of the spring rod g<6>. The levers or fingers e, e<1>, f, f<1> are connected by spring rods e<2>, f2, f<3> with an operating-lever h<6>, the fingers e, e<1> being also connected together by a link e<3> as shown. The sliding fastenings d may be clamped in their disengaged position when the holders are supported on the rising and falling part b of the channel, by means of clamping-levers M, m, m<1>, m<2>, Fig. 3, which are connected together as shown and operated by studs or projections n, n<1> on the catch-bar N. Guides K are provided to prevent the bottom holder plates d' from being moved out of position as they descend. At the charging end of the machine, the holder plates may be opened the short distance required (1) by raising the top plate as it is held in the slide P by means of a spring lever operated from the shaft h<9>, which also operates the pull-through mechanism, the parts being so arranged that, as the plate is raised, the flax is drawn through the holder, and as the pull-through mechanism is released, the top plate is lowered against the action of the spring; (2) a part of the cross channel may be severed from the remainder and arranged to be lowered together with the bottom plate of the holder for a limited distance, the upper plate of the holder being held in a fixed slide; or (3) a part of the cross channel may be arranged at a lower level than the main parts thereof and connected by inclines to them, so that, the upper plate of the holder being supported, the lower plate moves to the lower level and is again raised as it moves along the cross channel.