Patent GB-191022471-A (GB)
Title: Improvements in Automatic Weft Replenishing Mechanism of Looms for Weaving.
Inventor: HARLING JAMES
IPC: D03D45/20
Filed: 1910-09-28
Granted: 1911-05-25
Abstract: 22,471. Harling, J., and Marling, R. Sept. 28. Shuttles, changing bobbins and the like in, automatically.-The pirn hopper comprises a fixed lower part 2, 14, Figs. 1 and 3, provided with a. vertical spindle 15, and an upper detachable part or receptacle 50, Fig. 6, shown in dotted lines in Fig. 1, which also has a vertical spindle 51 and which may be filled away from the loom. The loose weft ends are secured to hooks 38 on a notched sleeve 37, which slides down the spindles 51, 15 one step at a time as the pirns are carried or transferred from the fixed part of the pirn hopper. The pirns or cops are retained in the compartments 3<a>, 4<a> of the detachable part 50 by projections 61, 62 on a cross-bar 54, which has arms 55, 56 sliding in brackets 57, 58 and is acted upon by a spring 60, the arm 56 normally engaging underneath and retaining the sleeves 37 on the spindle 51. When the filled removable receptacle 50 is placed on the top of the fixed part 2, 14, with the spindle 51 resting upon the spindle 15, a socket in a bracket 59 receives an upwardlyextending bolt 63 of the fixed part of the hopper, and a wedge &c. 64 on the bolt 63 engages and presses out the cross-bar 54, whereby the sleeve 37 is released and slides down the spindle 15 on to the top of the sleeve 37 (if any) thereon, while the pirns are released from the compartments 3<a>, 4<a> and fall into the compartment 3, 4 of the fixed part of the hopper. A bracket 14 to which the spindle 15 is secured supports two spring-controlled catches 40, 41, one of which engages one of the notches in the lowest sleeve 37. When the transferrer (not shown) is operated, it engages a projection 26 on and rocks a lever 25, a pawl 28 then rotating a ratchet-wheel 29 on a spindle 21 provided with a spring brake and geared to a pinion 33 carrying an eccentric pin 34, to which a lever 36 fast to a shaft 22 is linked. The lever 36 is thus rocked in a slot formed by an inclined bar 47 and a bent rod 18, 20, 19. This rod, which is connected to a lever 45 operating the catches 40, 41, is thus moved in perforations in a bracket 17, the lever 45 is rocked, and the catch previously in engagement with a notch in the sleeve is withdrawn. The other catch is caused to engage a notch, the sleeve thus moving down, step by step, as the pirn-transferrer is operated, and finally falling into a receptacle. Cams 23, 24 on the shaft 22 support the pirn heads and tips respectively, and, when the pirn-transferrer is operated and the. shaft 22 is thereby rocked, these cams are moved from side to side to release the pirns, first from one compartment and then from the other, to a common outlet 13. The release of each pirn occurs in two stages, between which each pirn is retained within the concave side of the cam 23 to prevent more than one pirn from being released at a time. The weft between the pirns and the hooks 38 is guided by guides 48, 49. Two weft ends may be engaged by each hook 38. The top of the spindle 15 may have a key or projection to register with a recess in the foot of the spindle 51.