Patent GB-339792-A (GB)
Title: Improvements in weight indicating and registering devices for textile machines
IPC: G01G17/02
Filed: 1929-12-13
Abstract: 339,792. Soc. Anon. des Anciens Etablissements P. Morival. Dec. 13, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Lap-forming apparatus. - A weight-indicating and recording device for textile machines, such as openers and scutchers, wherein the trough receiving the finished lap constitutes the platform of a weighing device adapted to be locked by means of a locking mechanism, is characterized in that the control of the locking mechanism from one of the movable members of the machine or from one of the control or driving members for the same, includes the use of means responsive to an electric current, and an electric feeding circuit for the same, the current being controlled by a control switch influenced by the movable control or driving member. Assuming a lap has been formed on the opener or scutcher, pinions 66, 67, Fig. 6, forming part of the usual measuring meter stop the feeding of the opener when the lap has been wound to the required length, and by the co-operation of projections 69, 70 displace a pinion 68 so as to rock a crank-lever 34 into the position 34a. The crank-lever thus slips past a contact lever 35 which is urged into the horizontal position by a spring 37. The lap is now removed from the opener and placed in the weighing trough 1, Fig. 1, of the weighing machine. The operator then restarts the opener to produce a further lap. The pinion 67 is again rotated, the pinion 68 comes into gear with the pinion 67 and the crank lever 34 rocks the contact lever 35 and momentarily closes a switch 38, 39 forming part of a, circuit including the windings of a relav switch co-operating with a distributor on a shaft 24, Fig. 3, driven intermittently by a motor 25. When the lap under formation has been wound to a sufficient extent, the operator depresses a pedal 33 in order to allow the usual pressure device for the winding to be lowered, and closes a switch I<1> thereby starting the motor 25 and the distributor shaft 24. A crank disc 22 acting upon a rod 21 raises a pair of weighted locking levers 18 pivoted on an axis 5, and by removing the pressure of the locking levers from the beam permits the beam to oscillate freely to equilibrium position. A pointer 13 connected to the beam by a rod 8 and toothed lever 9 indicates the over or under weight on a dial 14. The continued movement of the crank disc 22 again deposits the locking levers on the beam whereupon the distributor cuts off the current and stops the motor. The controlling switch 38, 39, Fig. 6, and its immediate mechanism may be omitted, or may be operated by the movement of one of the lap racks, for example, as shown in Fig. 10, wherein the lap rack (not shown) oscillates a shaft 49 carrying a toggle lever 50 normally held in the straight position by a spring 52. Raising the lap rack lowers the toggle lever and its end slips past a stationary abutment 55 without closing the contacts 38, 39 whereas the opposite movement closes the contacts. The switch 38, 39 may also be controlled by the action of placing the lap in the weighing trough. A stylus 16, Fig. 3, is secured to the lever 9 and records the movements of the beam upon a clockwork-driven cylinder 17. A ticket delivery device 64, Fig. 1, of any suitable type may be provided and in order to prevent its operation unless the lap is within predetermined limits of weight, the weighbeam is provided at each end with mercury contacts 62, 63 arranged in series with the distributor so that the operative circuit of the ticket delivery device is only completed when the beam is unlocked and is within predetermined limits of displacement.