Patent GB-190700296-A (GB)
Title: Improvements in, and relating to, Apparatus for Treating Hides or Skins.
Filed: 1907-01-04
Granted: 1908-01-02
Abstract: 296. Lake, C. S., [representative of Lake, H. H.], [Turner Tanning Machinery Co.]. Jan. 4. Hides and skins, raw and tanned or tawed, treating. -Relates to a machine for scouring or seasoning hides, which may also be used for unbairing and otherwise treating skins by replacing the brushes by knives &c. Fig. 5 is a sectional plan of a machine which is shown in part side elevation and vertical section in Figs. 1 and 4. The hide is thrown on the table 126, Fig. 4, and drawn under the seasoning-brushes 33 by a travelling table 36, which is then moved up by a treadle so as to bring the hide against the brushes, the table being simultaneously brought to rest. It is subsequently withdrawn, and the hide is reversed so that the untreated end may be brought under the brushes. The machine is driven from a shaft 23 which carries the chain on which the brush-slats 30 are mounted. The brushes are secured by dove-tailed clips which may be slid off the slats endways when the end cap of the framing 22 has been removed. The slats travel over ledges on the framing to prevent the chain from sagging. The travelling work-table 36, with its rigid backing 50 and rollers 37, 38, is carried by a pair of triangular frames 41, which are mounted on swinging arms 46, 47 so that it may be moved parallel to and into contact with the brushes 33. This is effected by a friction disk 64, Fig. 5, which, by means of a treadle 53 and lever 57, may be brought into contact with another disk 63 which is keyed on a sprocket-driven shaft 61. The disk 64 carries a connecting-rod 66 which is attached to an arm 67 on the shaft 48 on which the arms 46 are keyed, so that closure of the clutch 63, 64 raises the frames 41 and the table 50. The table is drawn back by springs 106 attached to the framing and to extensions 108 of the links 47. Compression springs 109 on rods 110, which are attached to arms on the shaft 48, serve as cushions ; the table is also cushioned by the abutment on spring- pressed plungers 134 of stop screws which are carried by extensions 132 of the links 47, 46. A right and left handed screw 45 enables the bearings of the rollers 37, 38 to be separated for tightening the belt, the surface of which is cleaned by a brush 114 driven by a chain 116, which is loose enough to allow motion of the frames 41. The droppings from the brush 114 are conveyed by a tray 123 to the main tank 84 in which the brush-moistening roller 87 revolves. This roller is driven at a variable speed by the friction gear shown in Fig. 5. The gear-driven shaft 49, on which the links 47 swing, and the roller axle 88 carry disks 90, 91 which engage frictionally a roller 93 on a shaft 95. This shaft can be moved axially by a hand-lever 98, Fig. 1, which has a toothed arc 101 for engaging a circular rack 100, and can be fixed in any position by a detent and locking-plate 102. A flap may be used to retain splashings from the tank 84 ; a comb may be mounted in brackets 133 to clean the brushes 33. The clutch and gearing for stopping the motion of the belt 36 when it is brought to the working position are shown to a larger scale in Figs. 6 and 9. Power is supplied to the drum 38 by a toothed wheel 69, which is keyed on the shaft 49 and is driven from the main shaft 23, Fig. 4, by a chain and intermediate pinion. The wheel 69 gears with one member 70 of a clutch, which turns freely with regard to the drum axle 40 and encloses the other member 71 which is keyed on the shaft. A plate 72<a>, loose on the shaft 40, has projections 73 which enter the clutch behind the jamming-rollers 72, Fig. 9, and also outer projections 75 which abut on a fixed stop 74 on the framing when the whole bed is moved forward. The clutch members are normally locked together so that the belt 36 travels ; but when the bed is moved forward to bring the skin under the brushes 33, the arrestment of the plate 72 by the stop 74 disengages the clutch, so that the belt rollers are no longer driven.