Patent GB-190700721-A (GB)
Title: Improvements in Shoe-dipping Machines.
Inventor: WALL JOHN HENRY
Filed: 1907-01-10
Granted: 1907-08-01
Abstract: 721. Wall, J. H. Jan. 10. Varnishing.- Relates to machines for dipping and varnishing rubber shoes, and consists in providing special means for rotating a number of shoes into the varnishing- tank, and automatic means for holding them above the tank the required length of time to drip after having been dipped. The rotating- mechanism l is supported by arms k projecting from a rock shaft d, each arm having formed on it a bearing 28 to receive a short shaft 32, Fig. 5, which is provided with a member 33. This is formed with an open-ended slot 36 to receive one end of a bar p, which carries a number of pegs to receive the lasted shoes. On the inner face of the arm k is a semicircular lip 30, formed somewhat eccentric with the bearing 28, and adjacent to this is a curved lip forming a stop 31, which is normally engaged by an arm 37 depending from the member 33. The arm is connected by a pivoted link 38 to one end of a locking-bar 39, to which is secured one end of a flexible cord 40. The other end of the cord is led over a pulley 41 supported on a rock-shaft e, and is secured to a spring 42 connected to a weight 26, which counterbalances the rotating- mechanism. The shaft 32 has secured to it an arm 45, which extends rearwards from a cross bar 44 connecting levers m at each end of the machine. The end 43 of the lever normally rests in notches 16 in fixed brackets 15. The dripping-mechanism consists of two hook-ended levers 52 pivoted to a link 51, which is secured to the rock-shaft e. To this is also secured a locking-lever 46, which has a bevelled hole near its free end to receive a vertical rod 49. A spring bolt 48 is secured to-the underside of the lever 46 in a position to engage a hole in the rod 49, the other end of the bolt being connected by a cord 56 to a cross-bar 55 joining the levers 52. The latter are adapted to support a peg bar p loaded with dipped boots, the weight of which normally holds the bolt 48 out of engagement with the rod 49. The dripping-mechanism is also furnished with a counterbalance 27. A standard o carrying brackets 59, 60 is provided to support the weights 26, 27. Fig. 2 shows the position of the various parts of the machine at the commencement of its operation, the rod 49 being continuously reciprocated from a crank-shaft and a peg bar loaded with boots being placed in the rotating-mechanism l. The operator lifts one of the levers m to free it from the recess 16, and then depresses a band-lever g secured to the shaft d at the same time giving the lever m a forward and upward movement. This rotates the shoes into the varnishing-tank which is rectangular in form with inclined front and back and a flat bottom 23. As the rotating-mechanism commences to revolve, the bar 39 engages the heels of the shoes, and the arms 38 leave the stops 31. The bar p. is prevented from falling out of the members 33 by the lips 30, which move over the open ends of the slots. The movements of the parts are reversed when the dipping operation is finished, and the operator then removes the other peg bar from the dripping-mechanism. This allows the arm 52 to move back under gravity and the tension of the spring surrounding the bolt 48, which snaps into the hole in the rod 49. The next upward movement of the rod 49 raises the rod 46, rotates the shaft e, and depresses the levers 52, the hook ends of which engage the peg bar in the rotating- mechanism. On the next downward movement of the rod 49, the peg bar and shoes are raised, and their weight releases the bolt 48. Another loaded peg bar is then placed in the rotating-mechanism, and the operations repeated. If desired, the dripping-mechanism may be actuated by a handlever 57.