Patent GB-190318898-A (GB)
Title: Improvements in or connected with Weft Replenishing Apparatus for Looms for Weaving.
Inventor: CARR JOHN WILLIAM
Filed: 1903-09-02
Granted: 1904-08-04
Abstract: 18,898. Carr, J. W., and Scholes, C. R. Sept. 2. Loom shuttles, changing bobbins and the like in, automatically.-When the weft fails, a fresh cop carried by a holder is automatically inserted into the shuttle from the front, and the spent cop is ejected at the back of the shuttle. A vertical hopper 2 is pivoted at 4 to a frame fixed to the breast beam. The cop holders consist of flat bars with upturned ends, one of which has a cop spindle hinged to it. When in the shuttle, the holder rests on one side, and the holders are placed one above the other with the cops downwards in grooves in the sides of the hopper, and are normally supported by sliding bars 11 pivoted to arms 12 on a cross-shaft 9. When the weft fails, a chain 36 attached to the weft-fork lever pulls back the lower end of a rod 38 pivoted to an arm 39 and having at its lower end a stud which projects into a slot 43 in a guide-plate 44. A slotted jaw 41 is caused to engage a stud on a bell-crank lever 34, which is continually oscillated by a rod 31 and crank 29 on the cam shaft 30. The rod 38 is thus raised at the next upward movement of the lever 34, and by means of the arm 39 turns a rocking plate 17 from a horizontal into a vertical position, as shown in Fig. 7. Slotted arms 19 are pivoted to the plate 17, and are connected by toggle-levers. A spring-controlled pin 24 is connected to the pivot pin of the toggle-levers, and when the plate 17 is horizontal the end 26 of the pin 24 presses against a fixed cam-plate 27, so that the arms 19 are held apart to receive a cop from the hopper. When the plate 17 is turned, the pin 24 is released, and the spring 28 causes the arms 19 to clip the cop holder, which is brought opposite to slots in the shuttle box and shuttle. As the lay beats up, the cop holder is inserted into the shuttle, thereby ejecting the spent cop holder, which is pushed down a shoot into a receptacle. When the rod 38 is raised, its end acts on an arm 15 on the shaft 9, which is partially turned and held by a spring or weighted catch 49 acting on the arm 15, so that the bars 11 are withdrawn from under the lowest cop holder, and similar bars 7 pivoted to arms 8 on the shaft 9 are moved under the cop holders. The lowest cop holder falls on to the bars 7, and when the rod 38 descends releasing the spring or weighted catch 49, and the bars 7, 11 are returned to their normal positions, this cop holder drops into the opened arms 19, which are now in a vertical position, so that it is ready for insertion into the shuttle at the next failure of weft. The bell-crank lever 34 is yieldingly actuated by the rod 31 so that a dwell is given to the rod 38 in its highest position, and a spring-controlled arm 45 acts on the lower end of the rod 38 to release the jaw 41 from the stud on the bell-crank lever when the rod 38 is lowered. The plate 17 may otherwise be rocked by a vertical rod, which is raised by a long lever when a stud on the lever is caused to enter a groove in a cam on the cam shaft by mechanism actuated by the weft fork. The hopper may be fixed, but preferably it is pivoted, and adjustable abutments may be attached to the lay bottom on the hopper so that when the shuttle is inserted the hopper is pushed back, whereby minute adjustment of the movement of the lay is obviated. It is stated that a stop-motion may be applied to stop the loom when the last cop holder is transferred to the shuttle or to the gripper arms.