Patent GB-190705523-A (GB)
Title: Improvements in or relating to Finishing Machines for use in the Manufacture of Boots and Shoes.
Inventor: BOULT ALFRED JULIUS
Filed: 1907-03-07
Granted: 1908-03-05
Abstract: 5523. Boult, A. J., [Miller Treeing Machine Co., O. A.]. March 7. Uppers.-A machine for ironing or treeing boots is constructed and operated as follows. A revolving turret 32 has a number of radial socket members 34 which receive the shanks of expansible trees. The trees are expanded by an actuator 40 engaging the head of a guide-rod 39 connected to the rod controlling the tree. The actuator is caused to make one stroke by an operating lever 50, and is then automatically disconnected. The lever 50 is oscillated by a lever 25, which is continuously vibrated by a gearwheel 18 driven from the engine. The trees when expanded are locked by a latch 64 engaging the guiderod 39. When the boot has been through the ironing - process, t h e trees are unlocked bv the engagement of a stop 70 on the table 7 of the machine with a releasing-member 68 attaching to the latch of the treelocking device. Fig.1 1 shows the turret adapted to be turned by band; it may be turned mechanically by the mechanism shown in Fig. 14, in which a ratchet-faced disk 80 is secured to the shaft which turns the turret and is adapted to engage a pawl carried by a rod 84. This rod is connected to an arm 86 actuated by a cam 89 on the shaft 90. The shaft is connected to a continuously rotating gear-wheel 94 by means of a clutch which automatically disengages after one revolution of the shaft. When the boot is in position to be ironed, the turret is locked by an upright lever 100, Figs. 1 and 3, which engages in a slotted block 108 secured to the turret. The lever is withdrawn, when the turret is to be moved, either by means of a lever 110, or mechanically by means of a hook 116 attached to an arm 112, which is worked by a cam 114 keyed to the cam shaft 90. Shafts 150, reciprocated by the rod 25, carry the tool-holders. Each shaft moves through, but is forced to rotate with, a toothed block 162 secured to the lower end of a casting 248. The blocks gear with a rack 164, which is bolted to a movable rod 170 reciprocated by an arm 174 actuated by a cam 175 on the cam shaft 90. Movement of the rod 170, and consequently of the rack 164, causes the tools to swing to or from the working position. If the turret is not turned mechanically, the arm 174 vibrates continuously, and is put into engagement with the rod 170, when desired, by means of a movable block 177, pivoted to the rear portion of the rod and adapted to be moved by a handlever 185. When the tools are acting on the boot, the rod 170 and rack 164 are locked in position by a latch 180. This latch is removed by an arm 192 attached to the ratchet-wheel 194 when the tools have made the required number of reciprocations. When the latch is released, a spring 172, attached to the rod 170, causes the rod to move and so swings the tools away from the boot. The ironing- tools preferably consist of rollers heated by small Bunsen burners 385, and any tool can be placed out of action when desired. The tool-carriers 212 are pivoted to a rectangular block 204 which slides in the fork of a carriage block secured to the reciprocating shafts 150. A stud on one end of the carrier slides in cam-slot in a plate 240 bolted to the casting 248, in order to cause the tools to follow the curve of the boot. The back-stay of the boot is ironed by a separate tool mounted in the end of a lever 406, as shown in Fig. 19. The tool is moved to and from the boot by means of a cam 420, which is rotated by means of a ratchet 432 and a pawl 435 carried by a vibrating rod 410. A ratchet tooth 434 is made longer than the stroke of the pawl, so that the tool remains in contact with the boot until the ratchet is moved by a dog 436 attached to the lever 110. The boot is operated on by this device before it reaches the main group of ironing-tools.