Patent GB-190208594-A (GB)
Title: Improvements in Machines for Spliting Skins and Hides.
Inventor: QUIGLEY WILLIAM DAVID
Filed: 1902-04-12
Granted: 1902-06-25
Abstract: 8594. Quigley, W. D., and Gay, J. H. April 12. Hides and skins, raw, treating.-Relates to machines for splitting skins or hides. Fig. 1 shows the left hand-half of the machine in front elevation, and Fig. 4 is a vertical transverse section of the portions of the machine which are above the supporting-table. The table A carries two side frames C, between which is the truss frame G which carries the upper or spring roll H. The lower truss frame K, which carries the guide-roll L, is journalled in standards I rising from the table A. An endless-band knife M passes over wheels N at opposite ends of the machine, and is so placed that its edge comes between the rolls H, L, as shown in Fig. 4. The hide P<4> is rolled ona beam or cylinder P, one edge being inserted in the slot P<3>. Ahand-wheel P<2> enables the beam to be rotated to roll up the hide. The free edge is introduced between the rollers H, L, and, as the hide advances, the free edge meets the edge of the moving knife-blade M and is split by it. The main driving-pulley Q is mounted on a short shaft, which bears a pinion engaging with the spur-wheel Q<3> on the shaft of the knife-carrying wheel N. The driving-shaft also bears a bevel pinion which engages with a bevel-wheel on the vertical shaft Q<6>. The shaft Q<6> drives a horizontal shaft Q<8> through bevel gearing, and the shaft Q<8> drives, through gearing Q<11>, Q<18>, a shaft from which the rolls H or L are driven through chain-and-sprocket gearing. The truss frame G is suspended by adjusting-screws 6 from brackets 5 having trunnion seatings E in the side frames C. The angular position of the brackets is adjusted by two pairs of set-screws 13 which act on opposite sides of studs projecting outwards from the brackets. In the lower end of the bracket 5 is a recess 14, Fig. 12, which receives the sliding double bearing 15. Through the upper portion of the bearing 15 extends the short shaft 16, which forms an intermediate shaft for driving the roll H, and through the lower part of the bearing passes the shaft of the roll H. The bearing is adjustable in the recess 14 by means of set-screws 24. In the frame G are provided a number of openings 26 crossed by a rib 28. Vertical rods 29 extend through the rib 28 and frame G, and are threaded to receive capstan nuts 30 which rest on the flange 27. Elastic blocks 33 are confined between discs 32 by nuts 31, and resist upward movement of the rods 29. Each rod carries, at its lower end, a bearing- block composed of two pieces 34, 35 concaved to receive the roll H. By adjusting the nuts 30, the rods can be raised and lowered to control the pressure on the roll. Cheek pieces 38 are secured on opposite sides of each bearing-block 34, 35, and set-screws passed through them serve to adjust the bearing-blocks laterally and hold them rigidly in position. The lower roll L is supported in the truss frame K, which is journalled at 44 in bearings sliding within the standards I. The bearings are raised and lowered by means of nuts which carry sprocket-wheels 48, Fig. 4, round which passes a chain 49 provided with an adjusting- buckle 50. A hand-lever serves to move the chain and raise or lower the frame K and roll L. The angular position of the frame K on its bearings is determined by set-screws 57 acting on opposite sides of the bearings for the roll L, which extend into recesses in the side frames C. The aligning- devices for the roll L comprise a number of loose rolls 59, 60 journalled in carriers 58 within the trough K<1> of the truss frame K. The carriers are adjusted by means of screws 61, 62. The frame K is formed with an inclined portion K' to support the hide as it is fed to the rolls. The knife M is guided between a shelf R and a steadying-bar U, and may be set outwardly towards the rolls by means of screws 67. The wheels N, on which the band knife runs, are capable of adjustment both angularly and laterally to ensure the accurate running of the knife. For this purpose the shafts of the wheels N are adjustable longitudinally in their bearings by means of screwed sleeves which pass through the bearings and are clamped in any required position by capstan nuts at their opposite ends. One of the bearings of each shaft is rotatable on a pin as a centre, and the other is adapted to slide laterally as well as to rotate, thus providing for angular adjustment of the shaft. The knife is formed as a flat band with a single bevel. The edge is kept sharp by means of an emery wheel V<10> driven from anv suitable motor by means of a belt and pulley V<11>.The shaft of the wheel is journalled in boxes secured to a frame which slides in inclined guides in the brackets V, V<1>, and is adjustable in position by means of a screw V<6>. The knife is supported in the neighbourhood of the wheel by a table V<15> and is set up towards the wheel by a suitable adjusting-screw. The burr produced on the opposite side of the knife, by grinding, is removed by a steel disc W, against which the knife bears after leaving the table V<15>.