Patent GB-190925950-A (GB)
Title: Improvements in and connected with Filling Detecting Mechanism for Weft Replenishing Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D51/34
Filed: 1909-11-10
Granted: 1910-09-22
Abstract: 25,950. Hollingworth, E., [Crompton & Knowles Loom Works]. Nov. 10. Weft-replenishing mechanism.-In mechanism for detecting substantial exhaustion of weft, two slides 23, 26, Fig. 2, are moved through openings in the shuttle box and shuttle into engagement with the weft 6, the slide 26 being slotted to engage a headed pin 27 on the slide 23, so that the slide 26 is moved with the slide 23, while it may also be moved at right-angles thereto by a lever 28 pivoted on the slide 23. The slide 26 is moved inwards at intervals by a rod 24 provided with a spring 25 operated by a spring - controlled pivoted lever 16', which is positively operated in one direction at every other pick. The lever 16<1> actuates the lever 28 in one direction by means of a spring on a rod 29, which fits loosely through a lug or ear 28<c> of the arm 28<2> of the lever 28, the spring acting upon the lug 28<c>, but this movement is normally prevented by a spring-controlled arm or lever 37 on a stud 38 on a stand on the lay engaging behind a stop 28<b> on the lever 28, and also by the engagement of the weft with the toothed &c. inner end of the slide 26. The return movement of the lever 28 is effected bv nuts 29<a> on the rod 29. When the weft becomes sufficiently exhausted to allow the lever 28 to move inwards with its stop 28b past the arm 37, as shown in Fig. 2, if there is insufficient weft to prevent movement of the slide 26 on the slide 23 the lever 28 is rocked and by means of a stud or pin 28<a> engaging in a slot 30<1> in an arm 30 on the bunter 31 mounted on the transferrer arm 7<1>, rocks this bunter into the path of the usual dagger. When the lever 16<1> returns, it also returns the slide 23 by engaging a roll 35 thereon, and by means of a spring 34 engaging the end of the rod 29 also returns the lever 28 to normal position, but the stud moves in an offset portion of the slot 30<1> and the arm 30 and bunter 31 remain in engaging position during the beat-up. The slide 23 has an inclined edge 23<3>, which engages a pin 11<1> in the opening in the shuttle and positions the shuttle just before the feeler engages the substantiallyexhausted weft. In a modification, the slide 23, Fig. 7, is mounted on the lay and is moved inwards at intervals by a spring 41 connected to a lever 42 fast upon a shaft 43 and positively actuated by a connector 44. During its backward movement, the lever 42 positively withdraws the slide by acting upon a pin &c. 23<2>. The slide 26, mounted upon the underside of the slide 23, is connected by a pin-and-slot arrangement to a three-armed lever 46 acted upon by a spring 47 connected to a lever 48 fast to the shaft 43. When the weft is substantially exhausted, the slides 23, 26 are moved inwards sufficiently far to remove a shoulder on the three-armed lever 46, mounted on the slide 23, free from a stud or stop 54, and if there is insufficient weft to prevent movement of the slide 26 on the slide 23, the lever 46 is rocked and a pin on one arm thereof moves a slotted lever 55 so as to place a stud 55<1> thereon in the path of a transmitting-lever 56 connected to the weftreplenishing mechanism. A finger on the connector 44 engages an arm on a short shaft carrying a second arm, which is engaged by the transferrer or other mechanism when the bobbin &c. is being transferred so as to operate the rod 44 and move the slide 23 away from the shuttle.