GB251661A - Process and machine for making wire strands, ropes or cables - Google Patents

Abstract

251,661. American Cable Co., Inc., (Assignees of Briggs, A. J.). May 2, 1925, [Convention date]. Machines for making.-In apparatus for bending wire into helices and laying the helices into a strand, rope or cable, the wire, which is bent by passing it around rolls mounted in staggered relation upon a carrier rotatable about an axis at right angles to the axes of the rolls, is fed from a series of reels 6 to each of which is given a planetary motion. The supply reels 6 aremounted in supports 9 carried in a frame 10, 11 which rotates with the helix-forming head and the supports 9 are rotated so as to rotate the reels 6 at right angles to their own axes by cranks 15 mounted upon a ring 17 which rotates with, but eccentrically of the shaft 5 carrying the reels. The forming head A comprises a corresponding number of independently mounted rotatable carriers 21 upon which are mounted the bending rolls 18 - - 20, the wires passing through the hollow trunnions 28 of the carriers and between the bending rolls. Upon issuing from the forming head the wires are laid about a core 46, the strand or rope thereby formed being drawn through a bushing 44 by any form of drawing- off mechanism. The middle bending roll 18 is preferably adjustably mounted in a slot 23, Fig. 5, so as to allow of variation of the diameter of the helix formed. The carriers 21 and the shaft 5 are driven independently from a lay shaft 41 by spur gearing which permits variation of their relative speed to vary the pitch of the helices formed. Brakes 50 are provided for tensioning the wires issuing from the reels 6. Specification 206,605 is referred to.