Patent GB-157391-A (GB)
Title: Machines for making fabricated wire
IPC: B21F35/04
Filed: 1921-01-10
Abstract: 157,391. Spirella Co., Inc., (Assignees of Griner, A.A.). July 17, 1919, [Convention date]. Making metal fabrics; corrugating; winding and reeling.-In a machine for making fabricated wire, such as garment stays, having oppositely disposed alternate parallel, converging or overlapping loops, extending transversely of the fabric, the wire, which is bent by reciprocating benders round rising and falling forming pins, first passes through a guide which is actuated by the means for raising and lowering the forming pins to bring the wire into position to be operated on. The wire passes to the forming pins 48, Fig. 2, thorugh an inclined tension and oiling device 68 and through an aperture 66, Fig. 7, in a pivoted guide 64 which is oscillated so as to draw the wire across the path of the bending fingers 47 in front of the pin which has just been elevated, by lugs 53 on the dies 51 carrying the two sets of pins. The tension and oiling device which is carried by a rotatably mounted stem 70 has a chuck 73 on which is screwed a tapered sleeve 74 to regulate the tension, the sleeve being formed with an oil-receiving gland 76 which is closed by a cap 77. The dies are alternately raised and lowered by cams 58 on a shaft 8 geared to the main shaft 6, through levers 54 and forked standards 52. The grooved bending fingers are dovetailed for securing in inwardly extending clamps 46 on a pair of bars 39 which have depending ends and are reciprocated in bearings 5 and in slots in the base 1 by eccentrics 45 and adjustable rods 42, so as to operate alternately. The forming-pins 48 shown in Fig. 5 are mounted in carriers 50, which are pushed rearwardly in recesses in the dies against the action of springs 60 by the bending fingers so as to feed the fabric through the machine. Screws 61 pass through slots in the carriers to retain and guide them. In a modification, the front pins are carried on large carriers, which are recessed to receive similar small carriers for the rear pins. The dies 51 in the first case and the large carriers in the second case are provided with grooves 63 which engage projections 79 on a spring-pressed upper die 78 so as to straighten or flatten the loops. The die 78 is guided in a housing 3 and the tension of its spring 81 is adjusted by a screw 83 bearing on a cap 82. The fabric is drawn up an inclined channelled guide 84 with a weighted pivoted cover 85 by a series of rollers 36, 31, 34 with end flanges, which tension and remove kinks in the fabric and straighten the edges thereof, and is wound on a drum 26. The roller 34 is mounted in adjustable bearings to vary the pressure on the fabric, and the bearings of the roller 36 are adjustable to arcuate slots 38. The rolls 31, 34 and the drum are.rotated by spur and worm gear from a shaft 20 which is driven by bevel gear 19, 18, 16, 15 from an intermediate shaft geared to the main shaft 6. The main shaft has fast and locse pulleys at one end and a hand wheel at the other end for adjusting the machine or for initially threading the wire therethrough. The vertical walls of the supporting frame may be open to reduce dead weight.