Patent GB-190525867-A (GB)
Title: Improvements in or relating to Machines for the Manufacture of Coiled Wire Fabrics
Inventor: PINE WILBER JAY
Filed: 1905-12-12
Granted: 1906-11-22
Abstract: 25,867. Pine, W. J. Dec. 12. Bending; shearing; wire; rollers. - An automatic machine for making coiled-wire fabrics such as mattresses is shown in the Figures, the various parts of the machine being adjustable to suit coils &c. of different sizes; and the insertion of strengthening bands or coils governed by pattern mechanism. Such a machine may be arranged to make any number of fabrics simultaneously, the one shown being for making three fabrics in which each coil consists of two wires. Each wire is led from a reel 276, Fig. 45, through a knot-arresting sleeve 280 and round pulleys 278, 282, 291 to the machine, the pulley 282 being mounted in a block which is retained at the top of the grooved arm 286, by a spring catch 287, Fig. 46, but which is drawn down the arm when a knot encounters the sleeve 280 and in falling closes a circuit through contacts 295 and an electro - magnet 299, Fig. 1, which lifts a catch 300 out of a notched bar 301 and allows a spring 303 to disconnect the driving-clutch on the main shaft 32. The wires pass through guides 51, Fig 5. to feed-rolls 5, mounted in a frame 2 which is reciprocated towards and away from the main frame 1 by racks, pinions, a lever, a reciprocating rod, and a cam on a shaft carrying a spur-wheel 256, Fig. 41. The feed rolls or rings 5, 7, Figs. 5, 6, and 13, are spaced by sleeves 4, 4<a> on shafts 3, 6, the rings on the lower shaft being connected by spiral springs 8 with the shaft and both shafts being rotated by gearing 38, 37, 36, 35, 34. The rings 7 are raised to grip the wires by rollerprovided cradles 10 which are pressed upwards by pins 12, spring-pressed pins 15 in blocks 16, and cams 21, either independently by means of racks, pinions, and band-levers 24, or simultaneously when the bar 22 is reciprocated by means of a bell-crank lever 44, 45, 42 and a cam 41 on a shaft 40 operated from the main shaft by worm gearing 33, 39. The cam consists of inner and outer parts which are angularly adjustable. The cradles 10 may be kept down by wedges 309, and the pins 15 along with their blocks 16 and brackets 17 are laterally adjustable by screws 27 so as to permit of the adjustment of the pressures on the separate wires of each pair to cause them to be fed at the same speed to spirally grooved coilers 56 and tensioners 62, Figs. 5 and 12, which are rotatable by worm gearing to vary the pitch of the coils. The two wires pass through a bridge electrode 305, Figs. 5 and 48, to the coil-uniting guide 70, but should either coil become snarled it will contact with the electrode 305 and complete an electric circuit through the machine frame and the magnet 299 and thus stop the machine. Any electrode 305 may be moved by hand into contact with a terminal 308 to stop the machine. The guides 70 are adjustable longitudinally by worm gearing, and each groove in the same terminates in an edge to coact with the edge of a shear-blade on a bar 73 which is reciprocated by a lever 75, a pin on a reciprocating plate 78, Figs. 5 and 19, a lever 86, and a cam on the shaft 40. The frame 80 carrying the bar 73 and plate 78 is longitudinally adjustable in the frame 2 by worm gearing, and also carries a finger 87 which works in a slot in the guide 70 and moves as indicated in Fig. 23 to position the coil properly. A retaining-finger 104 projects through another slot in the guide 70 and is adjusted forwards or backwards by worm gearing. The to-andfro movement of the finger 87 is obtained by a link 99, a belt-crank lever 100, 101, and a slot 102, Fig. 19, in the plate 78, while the up-and-down movement is obtained by arms 89, 91 on a rockshaft 90, a lever 92, and a V-shaped cam-way 94, one side 97 of which is pivoted to allow the cam to be inoperative when the plate is moving in one direction. The double-wire coil is intercoiled with the previously formed coil in the weaving-channel, Fig. 29, and is then severed by the blades on the bar 73. Each channel is provided with brass facings 146, 147, renewable pieces 148, and an electro-magnet 149 in the same circuit as a make- and-break switch operated by the shaft 40. The channel sides 130 are secured to yokes 151, and the distances between them and the vertically moving sides 131 are determined by fillets 156. The yokes 151 are connected to brackets 158, Fig. 5, which can be moved transversely of the machine at an inclination of forty-five degrees by crank-pin and slot mechanism and a handle 165<a>. The sides 131 are secured to brackets 188, Fig. 24, which are vertically reciprocated by a rock-shaft 194, an arm 195 on the same provided with set-screws to engage adjustably a lever 193 loosely pivoted on the shaft 194, and a cam 190 on a shaft 173 operated from the shaft 40. The side 131 is fitted with a continuation 144, and both sides with shutters 136, 139, which are moved laterally by means of inclined slots, pins on reciprocating bars; 132, 133, levers 168, 182, and cams 172, 187 on the shaft 173. When a coil d, Fig. 29, has been interwoven with the coil c, the magnet 149 is energized, the shutter 139 already advanced between the coils b, c is raised to eject the fabric, the retaining- shutter 136 advanced between the coils b, c, and the shutter 139 withdrawn, lowered, advanced between the coils c, d, and alightty raised after the shutter 136 has been withdrawn and the magnet deenergized, to bring the coil d into the position occupied by the coil c in'the Figure, ready for the interweaving of another coil. The lever 168 has a spring connexion with its rod 170, and each lever 182 with its bar 133. The fabrics pass over rollers 326 and down guides 325, Figs. 24 and 27, and have their ends squashed between the guides and bell-crank levers 324 pivoted to a slide 316 and then trimmed by knives on the slide 316 and on the frame 312. The slide is reciprocated by a bellcrank lever 319,320 and a cam 323 on the shaft 40. The rollers 326 are driven by an eccentric on the shaft 173, a ratchet-lever, a chain, and sprocketwheels frictionally mounted on the roller shafts. The shaft 173 for operating the weaving-mechanism is rotated once each revolution of the shaft 40 by means of a crank 202, a pitman 203, a pawl and ratchet-wheel, and a multiplying-gear, except when the pawl is raised to allow of strengthening-coils being run in the fabrics. The pattern 227 is moved between the curved guides 228 by a pinion, a pin-wheel 224 on a vertical shaft, and a cam 225 on the shaft 40, and whenever a notch in the pattern comes opposite to a pin 232, Fig. 40, on a lever 231, the lever is moved by a spring until its tail end comes beneath a projection 221 on a slide 216 and prevents it from falling. The slide normally moves up and down with a cam on the shaft 40, and carries a curved arm which in its raised position keeps the pawl out of eagagement with its ratchet-wheel and thus arrests the weaving- mechanism. On the opposite side of the bracket carrying the slide 216 is a slide 236 operated by a cam 234 on the shaft 40 and vertically reciprocating the frame 80 by levers and rods 237, 241, 243, 128. A pin on the slide 236 engages a slot in the slide 216 and keeps the former raised when the latter is, and thus the frame 80 stationary while the weaving-mechanism is out of gear. The shaft carrying the wheel 256, Fig. 41, for reciprocating the head 2 is driven by a pinion 257 on the shaft 40 and the spur-wheel 256, which is normally locked to the shaft, by a rocking key 254 and a spring 261. The slide 216 is connected with a rock-shaft 246, and when the slide is kept raised, and the weaving-mechanism out of gear, the rock-shaft 246 moves two arms 250, 251 into the path of the arm 253 and thus rocks the key 254 out of engagement with the shaft carrying the wheel 256.