Patent GB-190001577-A (GB)
Title: Improvements in and connected with Circular Machines for Stretching, Straightening, Drying or Finishing Woven Fabrics, and for Stretching, Drying and Finishing Hanks of Yarn.
Inventor: ISHERWOOD OSWALD
Filed: 1900-01-25
Granted: 1901-01-05
Abstract: 1577. Isherwood, O. Jan. 25. Yarns, stretching and finishing. -Yarns and fabrics are stretched, dried, and finished in circular machines such as that shown in Fig. 1. The material C is fed over rollers L to an entrance frame D, from which it is taken by chains A over a drum or pulley A' and delivered when it reaches a delivery frame E. The chains are guided by two sets of pinions G, G<1> and H, H', the pinions of each set being placed at right-angles to one another. The length of fabric is measured by an index M mounted on a spindle which passes through the pulley G and is connected with the pinion G<1> by worm gearing. One of the pinions H is connected with a motor shaft I by differential gearing, so as to be actuated, when desired, at a different speed to the pinion H at the opposite side, with the view of straightening the fabric. The bevel pinion U<2> on the shaft I, Figs. 10 and 11, gears with the pinion U<1> on which the chain-wheel H is loosely mounted. On the hub H<2> of the chain-wheel H and parallel with its axis is a shaft R having at one end a pinion R<1> which gears with a pinion R<2> loose on the hub of the chain-wheel. At the other end of the shaft R is a worm which gears with a transverse shaft which is connected with the hub of the bevelwheel U<1> by worm gearing. By this arrangement, the bevel-wheel U and the chain-wheel H move as a solid block when the pinion R' is free ; but, when a spring pin carried on a lever is inserted into one of a series of holes in the pinion R', the pinion R<2> rotates around it, thus causing a difference in the speed of the pinions H. Independently of this movement, a "jigging" action is, in the case of certain fabrics, given to produce a softer feel, by an arrangement shown in Fig. 25. Here the bevel-wheel Z' replaces one of the bevel-wheels U<2>, being carried on a sleeve Z on the shaft I. To the sleeve Z is secured the pulley Y, and to the shaft f the pulley Y'. Mounted over the hub of the pulley Y, and secured to an adjustable device, is an eccentric sheath 4 carrying a clip 3 having at diametrically-opposite sides pins 2, one of which carries a block Y<4> moving in a slitted arm Y<2> of the pulley Y, and the other carries a block 1 moving in the slitted arm Y<3> of the pulley Y'. By this arrangement the relative speeds of the shaft I and sleeve Z may be caused to increase and diminish alternately, thus stretching the fabric diagonally in opposite directions. The chain clips may be adapted to carry two pieces of fabric simultaneously, or one piece of fabric may be passed through the apparatus a second time, suitable batching-apparatus being provided in each case. The fabric may also be folded once or twice longitudinally before entering the machine. The parts of the apparatus are adjustable, to permit of the treatment of fabrics of different widths. An air propeller may be used to produce a current of air against the fabric, a suitable casing being provided to prevent the escape of the air. A drying-cylinder may support the chain and guide rails and fabric, the rails being suitably adjustable. Instead of the drying-cylinder, two annular steamchests having cross-pipes may be used, with or without an air propeller. Suitable covering-shells are in this case provided. In treating hanks, holders 68, as shown in Figs, 79 and 81, are used.