Patent GB-190921436-A (GB)
Title: An Improved Machine for 'Putting Out' or Working Hides, Skins and Leather.
Inventor: PERKINS FRANKLIN JAY
IPC: C14B1/12
Filed: 1909-09-20
Granted: 1909-10-21
Abstract: 21,436. Perkins, F. J. Sept. 30, 1908, [Convention date]. Serial-table machines. -In a table machine in which the hide passes vertically between two rotary tools, the backbone part of the hide is treated on an auxiliary bed roll before the table carries it up for treatment of the sides, and means are provided for automatically delivering the treated hide from the machine. The machine is shown in back and end elevation in Figs. 1 and 3, and in part section in Fig. 4. The journals of the auxiliary bed 10, Figs. 3 and 4, run in oblique guides 12, having vertical extensions 13, and are raised by hollow cam-blocks 15 which are attached to the bed-operating rods 16 and are reciprocated on guides 17 by cranks 22, 23 on the main shaft j. The crank-pin 20 forms the pivot of a rack-bar 27, which engages a pinion 28 on the roll and turns it first forwards and then backwards to work the backbone of the hide when it has been raised to meet the tools a, b. The pressure on the hide during this stage may be controlled by the nature of the bed-roll covering, by varying the length of the rods 16, or by making these rods in two parts with intervening springs. When the roll 10 reaches its lowest position, it is locked by the entry of an arm 30, Fig. 14, into a recess on a cam-disk 48 rigidly mounted on the shaft j, which is simultaneously disconnected from the driving-wheel 35 by any suitable clutch operated by an arm 37. The arms 30, 37 are operated by a pedal shaft 31 and tension spring 150. When the roll 10 descends, the table is caused to rise by the clutching together of a pinion 39 and the sprocket-wheel 45 which operates the table-lifting chains e, Fig. 4. The clutch is actuated by an arm 59, Fig. 14, keyed to a shaft 58 which is counterweighted so as to cause a second arm 55 to abut on a cam-block 52 rigidly connected to an operating-bar 50. The bar is wiped by the cam 48 so as to raise the table synchronously with the descent of the roll 10. An arm 62, rigid with the bar 50, is attached by a cord &c. 63 to an arm 64 on one of the rock-shafts 65, Fig. 3, of which there is one on each side of the machine. Each of these has a cross-bar 68 linked by rods 69, 70 to the tool carriers 71, 72, which are pivoted to the framing at 83 and normally fall in towards the work. The shafts 65 also have arms 78, each linked, as shown at 79, 80, to a lever 82, Fig. 4, having a toe 84 in the path of a projection 85 on the table. When the table reaches the upper limit, the toes and linkages are deflected and the shafts 65 rocked so that the tools a, b are swung apart and a clear way left for the table to drop. At the same time the cord 63 is raised and the table-lifting sprocket. 45, Figs. 1 and 14, is unclutched to allow the descent. The main table c, Fig. 4, works with a supplementary table formed of plates 90, 91 which are joined by yokes 92, shown in sectional plan in Fig. 8, containing guideways 94 for the main table and running in similar guideways 93 in the main framing. By means of spring-pressed pins 95, which co-operate with recesses and cams on the main table and framing, the two tables are lifted together until the work is about to enter between the tools and the auxiliary table is left stationary while the main one ascends with the hide, after which they both drop to the position shown in Fig. 4. The fall is cushioned by spring-pulled levers 112 which are impacted by pins 110 on the table chain. The auxiliary table protects the operator's hands from the tools and also assists the tools to spread the hide uniformly on the table c. As the table descends, the hide is removed from it by revolving brushes 114, 115, Fig. 4, which are held away from the hide during the working stroke by a cam 116 on the shaft 65, Fig. 1, which engages rollers on the brush shafts. The front brush delivers the hide on to a shoot 122 and the back one on to a set of bands 118 passing round the brush stock and a roller 119 which is supported on pivoted struts 120 and links 121. When the brush 115 moves back under the action of the cam 116 after removal of the hide from the table, the roller 119 rises by swinging about the pivot 83 and the hide thus clears the brush 115 and may be freely withdrawn by the brush 114. The table may be reversed by hand at any point in the stroke, and the tools and brushes opened or closed by pressure on a rail 130, which joins the levers 80