Patent GB-190516171-A (GB)
Title: Improvements in the Manufacture of Leather Belting and in Machinery therefor.
Inventor: SARGEANT EDWARD FRANK
Filed: 1905-08-08
Granted: 1906-06-28
Abstract: 16,171. Sargeant, E. F. Aug. 8. Belts and bands; presses. -Relates to a machine for joining together the ends of leather belting, in which the ends are bevelled, roughened, and treated with glue. The belt ends are laid across the bars 10, Figs. 1 and 2<a>, under the clamps 22, 21. The bars, which are covered with leather, are carried by a slidable table 1 adapted to move from end to end of the machine on the rails 2. In the side frames 6 of the table 1 are guides in which another table may be moved transversely to the rails by means of a hand-wheel and a screwed spindle 8 working in a nut 9. The bars 10 are supported by a shaft 18 and eye-bolts 19 at one end, and at the other end by a rubber-covered bar 11 which is connected by bolts 12 and levers 13, 15 with a weighted lever 16. The levers 16 carry the clamp 21 by means of the eye-bolts 20, provided with stop-collars 26, the clamp 22 being secured to projections 24 of the side frames 6 by bolts 23. The clamp 21 is arranged higher than the clamp 22 so that the horizontallyarranged cutting -knives take out a wedge-shaped piece. In operation, the table with the leather strips is set in motion by a screwed shaft 28, on which are arranged fast and loose pulleys 30 driven by a belt from pulleys mounted on the main shaft 31. As the table travels towards the right, the revolving knives 45 make a wedge-shaped cut in the leather, which is held down by springs 51 arranged to pass through notches in the blades. The table then passes under the spring-pressed roller 53 to a fixed adjustable knife 59 which removes the ridges left by the notched revolving knives, the knives 66 placed at the sides determining the depth of the cut. The table then passes under a revolving disk 69, carrying a knife 70 which removes any unevenness of surface and roughens up the fibre to take the glue. The disk 69 is keyed to a hollow spindle 67, which revolves in bearings 68 of the bridge 5 spanning the bridge-piece 4. The spindle 67 can be raised and lowered by a handle 75, which works, on a quick screw 76 of the bridge 73 connected by the links 72 to the collar 71 of the spindle 67. The spindle 67 is adjusted by a hand-wheel 74. A small spindle 77 passes through the spindle 67 and carries a circular plate 78 which may be pressed down on the leather by means of a handle 79. A fixed knife 92, adjustable along a shaft 94, is arranged to cut off the strap ends, which are raised on to the knife by an arrangement of steel pins 116 extending from the underside of the straps to the guide-surface 114 on the frame 4 provided with a convex piece 115. As the table passes under a gluepot 80, cocks 82 are arranged to supply glue, which is distributed by a number of brushes 83, mounted on a spindle 84, adapted to be reciprocated by an eccentric keyed on the shaft 31. The table 10 has then travelled far enough to push the belt on to the loose pulley the fly-wheel 34 rotating and continuing its movement until a crossed belt is pushed on to the reversing-pulley. Before the table is caused to travel back along the machine, the prepared strips are released from the clamps, by depressing the treadle 42, and put into the belt press. This is operated through a worm-wheel by means of the worm shaft 109 connected by belt gearing with the shaft 31. One end of the belt is held in the press while the other is being bevelled, but, when the belt is too short to allow of a sufficient length of travel to be given to the table, the press may be adapted to travel with the table. The driving-belt for opening or closing the press may be automatically thrown on to the loose pulley by means of an eye-bolt 113 which passes up the centre of the shaft 109. As this shaft revolves, the eyebolt 113 works in or out and acts on the beltstriking gear through suitable levers, a small fly-wheel rotating the shaft 109 until the press is opened or closed sufficiently. The press may be operated by hand, and at the ingoing and outgoing sides adjustable steel guides are provided, together with scrapers and knives to remove superfluous glue and trim the edges. Various modifications and arrangements of the machine are described. The revolving knives may be dispensed with, or the shaft carrying them may be arranged parallel to the main shaft 31, and the cutter 70 may be sharpened at its lower ends into narrow points, the guard Cx, Fig. 9, being dispensed with. Preferably, however, the cutter 70 is used alone, the blade being slightly modified.