Patent GB-176808-A (GB)
Title: Improvements in cutting machines
IPC: D06H7/02
Filed: 1922-03-13
Abstract: 176,808. Spadone Machine Co., (Assignees of Wegner, J.). March 12, 1921, [Convention date]. Delivery apparatus.-A fabric-cutting machine, more particularly for cutting coated duck used in the manufacture of tyres, hose, &c., into sections, is provided with means for automatically removing the severed pieces from the machine, and preferably also with a delivery table or other receiver for collecting them. The machine is intended for operative combination with feeding and cutting machines of the kind described in Specification 6548/10, [Class 31 (i), Cutting and severing machines &c.]. In the arrangement shown for cutting strips of fabric on the bias, the web a to be cut passes down alongside a slot 17 in an inclined raceway 15 and is cut by a knife 24 which is alternately projected into and withdrawn from a groove 18 in a clamping bar 19 by the reciprocation of the cutter actuating member 23 along the guideway 22. The severed portion of the web a is seized along its upper edge by a series of suction nozzles 26 and pins 27 arranged at spaced intervals along a pipe 25 disposed parallel with the raceway 15 and connected by tubes 28 to a tubular shaft 29 journaled in oscillating arms 31, a spring 33 normally maintaining the tubular frame in a vertical position. The arms 31 project from a shaft 32 having an arm 37 connected by a rod 38 to one arm 39 of a two-armed lever pivoted at 40, the other arm 42 being connected by a rod 43 to a pivoted lever 44 carrying a roller 47 engaging a face cam 49. On downward movement of the arms 31, the tubular shaft 29 and the tubular frame 28, 25 are lowered vertically for a short distance, as shown in Fig. 4. until a lug 67 on the tubular shaft 29 strikes against a pivoted latch 64, the furthermovement of the arms 31 thereupon rotating the shaft 29 and swinging down the tubular frame, as shown in dotted lines. A covering of wire netting 30 prevents the strip a sagging between the tubes 28 as the frame descends. Connection of the suction nozzles 26 with the vacuum pump 62 is now broken so that the severed strip a becomes detached and falls on the sloping table 70. The latter is mounted for adjustment laterally towards the oscillating delivery frame, or at an angle as shown in dotted lines in Fig. 7, and also to enable it to be lowered as the pile of delivered cut sections accumulates. The brackets 71 supporting the table 70 are mounted on arms 73 carried by tubular shafts 74 slidable along the tubular shafts 75, Fig. 9, by means of a hand-crank 94, arm 88, and connecting link 90, whereby the table may be adjusted laterally. The rods 77, Fig. 7, which carry the tubular shafts 75, are mounted at their inner ends in collars 83, one pivotally connected with an upright 85 and the other with a fork 86 so positioned as to allow the table to be adjusted at an angle corresponding with the inclination of the cut sections when deposited on the table. The tubular shafts 75 are geared by means of worm-wheels 102, worms 101, and bevel gear 99, 98, with a shaft 95 fitted with a handwheel 97, so that the tubular shafts may be slowly rotated to lower the swing arms 73 supporting the table. A conveyer belt 103 may be associated with the latter.