Patent GB-190003517-A (GB)
Title: Improvements in and relating to Means for Automatically Changing Shuttles in Looms for Weaving.
Inventor: CLEMENT PAUL
Filed: 1900-02-22
Granted: 1901-02-22
Abstract: 3517. ClÚment, P. Feb. 22. Loom shuttle-changing mechanism.-Empty shuttles are changed for fresh ones without the loss of a single pick by means of a pattern chain 1 of suitable length, passing over a guide-pulley 2 and having two successive cards arranged to operate the levers 13, 6 respectively ; the lever 13 actuates the mechanism for changing the shuttle, and the lever 6 the feed-mechanism for furnishing the drum 42 with a fresh shuttle from the receptacle 66 in exchange for the empty one. The levers 13, 6, the latter of which carries the pawl 5 for operating the pulley 2, are lifted by a fork 27 on a lever 25, actuated by a cam 24 on the shaft 23, which is driven by gearing 22, 21 from the shaft 16. When the pin 11 of the lever 13 enters a perforation in a card, a vertical arm 30 causes a notched lever 31 to engage with a loop 54 at the end of a lever 26, which is oscillated by the cam 24. This causes the lever 33 to rock upon its fulcrum 34, and a hook 36 upon its other end 35 to rotate the shuttle-carrying drum 42, the motion of which is limited by a spring stop 51, and by a hook 60 carried by another lever 59 mounted upon the pin 34. The used shuttle is then withdrawn from the drum, and a fresh shuttle from the receptacle 66 is inserted into a groove on the other side of the drum under the control of the second lever 6. When the pin of this lever enters a perforation in the card, a vertical arm 77 causes a notched lever 78 to engage with the loop 54 on the lever 26. This rocks the lever 79, and by means of a link 81, bent lever 83, and cord releases the hook 136 from engagement with a tooth 135 on the disc 110. At the same time the vertical arm of the bent lever brings the rods 85, 87 into alignment, and puts the clutch 97, 98 into gear. This causes the disc 110 to be driven by the gearing 99, 100, 103, 106, 108, and by a connecting-rod 111 operates the lever 114 and causes the flyer 120 to slide along the rods 121, 122. The rods 85, 87 are returned by a roller 134 acting upon a lever 131 connected to the lever 85 by a rod 130, and the hook 136 is again caused to engage with the tooth 135 by means of a spring acting upon the lever 79. The flyer has at one side a tappet 123, Fig. 8, for pushing the fresh shuttle from the box 64 into the groove in the drum 42, and at the other side a pivoted hook 125 for withdrawing the used shuttle. The box 64 is hinged at 65 to the receptacle 66, but is carried by the lay, and the shuttles are fed into it by stop-rods 72, 73 on spindles 74, 75 fitted with rods 148, 149, which are held in their normal position by spring rods 152 and are operated by cards 150, 151 from the levers 33, 79. The shuttles are formed at one side with a notch for the hook 125, and the end of the thread 155, Fig. 10, is held by a ring 157, which is retained in a groove in the shuttle by a springÀ158 until the shuttle is thrown, when it is canght by a hook 159, Fig. 3, on the lay 18. The weft remaining on the used shuttle is cut off by a pair of scissors, one blade of which is hidden in a recess of the lay and operated against the action of a spring by a cord or other means from the lever 33.