Patent GB-190500579-A (GB)
Title: Improvements relating to Devices for Moving the Shuttle Boxes of Rotary Box Looms for Weaving.
Inventor: WIBAUX-FLORIN DESIRE
Filed: 1905-01-11
Granted: 1905-06-08
Abstract: 579. Florin, D. Wibaux-. Jan. 11. Loom change-box motions ; pattern surfaces.-Consists of rotary-box mechanism which comprises two ratchetwheels provided with projecting pins, of which some control means for effecting the rotation of the rotary box, and others control means for changing from pattern weaving to plain weaving and vice versa. The rotary box 3, Fig. 1, is turned in opposite directions by latches 1, 2 connected to pivoted levers 5. Latches 7 are connected to the levers 5, and pass through slots 11 in a pivoted lever 12, being drawn by springs against the forward ends of the slots. The lever 12 is raised and lowered about its pivot 13 by a cam on the tappet-shaft, and, when one of the latches 7 is moved in the direction of the arrow 74, its latchhead 10 is engaged by the lever 12, so that the rotary box is turned one-sixth of a revolution by one of the latches 1, 2. The controlling-mechanism comprises two ratchet-wheels 26, 26<1>, Figs. 1 and 4, each provided with a detent 28 and actuated by a pawl 24. These pawls are pivoted on arms 23 fixed to a shaft 22, and are pressed towards their respective ratchet-wheels by the action of springs 25. The shaft 22 is rocked by means of a lever 21, rod 20, and pivoted lever 18, which is oscillated by a cam on the tappet-shaft. The pawls 24 are connected by rods 61 to opposite ends of a pivoted lever 49, and one of the pawls is always in action while the other is out of action according as the lever 49 is inclined to one side or the other. The lever is held in either of its inclined positions by a roller on a spring-controlled lever engaging one of two recesses in a disk secured to the lever. In the position shown in Fig. 1, the ratchet-wheel 26 is being rotated, and plain weaving is produced. When, however, a pin 32, projecting from the face of the ratchet-wheel, strikes the upper end of a rod 38 carried by a pivoted socket 39, a sliding shoe 44 on the lower end of the rod is moved over a rod 75 on the lever 12, and is thereby moved upwards against the action of a spring 43. A link 45 connected to the shoe acts upon a pivoted lever 46, which, through a rod or wire 48, depresses the raised end of the lever 49. This lever is moved into its other inclined position, and the positions of the pawls 24 are reversed, so that the ratchetwheel 26<1> is now rotated. The wheel 26<1> is provided near its circumference with short pins 36. 37, Fig. 4, which act upon pivoted levers 65, 66. When the lever 65, say, is acted upon, its lower end 68, Fig. 1, acts upon one end of a centrally-pivoted lever 71, so that its other end moves the inner latch 7 and causes its head 10 to be caught by the lever 12, thus causing a partial rotation of the rotary box. When the lever 66 is acted upon, the rotary box is turned in the opposite direction. When a long pin 35, Fig. 4, placed nearer the centre of the wheel 26<1> than the pins 36, 37, strikes a rod 41, similar to the rod 38, the position of the lever 49 is reversed by mechanism similar to that already described, so that plain weaving is re-commenced. The pins 32, 35, 36, 37 are fitted in series of holes in the wheels 26, 26<1>, in accordance with the requirements of the pattern.