GB460726A - Improvements relating to looms for weaving pile fabrics - Google Patents

Abstract

460,726. Tensioning warps in looms. HARVEY, I. F., and HARVEY, E. T. Aug. 23, 1935, No. 23699. [Class 142 (ii)] Warp threads from one or more beams of a pile fabric or other loom are passed over a number of compensating rods 8, one for each shaft, that are movably mounted on rails 10, each of the rods being connected at spaced points thereon to a common tensioning device such as a weight or one or more springs 11 acting through a compensating device 12. In the construction shown, the connecting means include wires or cords 19, 19<1> extending from the end of the rod to a disc integral with or adapted to rotate in unison with a member 14 connected to the spring, the shape of the member 14 being such as to compensate for changes in the force exerted by the spring. Alternatively, the spring 11 may be replaced by a helical spring having its axis coincident with the axis of rotation of the compensating device 12, one end of the spring being attached to the latter and the other to a fixed point. The compensating devices may be mounted side by side on a shaft 16 and the member 14 may be wide enough to accommodate cords from several springs.