Patent GB-190910707-A (GB)
Title: Improvements in or relating to Edge-setting Machines, Burnishing Machines and the like.
Inventor: BOULT ALFRED JULIUS
IPC: A43D95/24
Filed: 1909-05-05
Granted: 1910-05-05
Abstract: 10,707. Boult, A. J., [United Shoe Machinery Co.]. May 5. Edge-setting &c.-An edge-setting, burnishing, or like machine is provided with separate tools for operating upon the shank and the forepart upon each side of a shoe, while a further tool operates upon the toe. In the machine shown, a pair of shoes are operated upon simultaneously. Each shoe is supported upon a heel post 1, Fig. 4, movable vertically in a sleeve 4 on a slide 5, which is mounted in horizontal ways on the bed-piece 7, which is run out on slides to insert or remove a shoe. At the upper end of the post 1 is pivoted a heel pin 2 entering a socket in the last, and pressed forward by a spring 3 to tilt the shoe against the toe-support. This is movably mounted in circular guides at the end of a post 9, also slidable in a guide on the bed-piece 7. The heel and toe posts are pressed upwards by a bar 13 pivoted to a rod 20 against rocking rests 14, 15 attached to the frame of the machine. Each pair of tools 52, 53, for operating on the same side of the shoe, is mounted upon a head 27 fixed at the forward end of a shaft 28 journaled in a sleeve 29. The rear extremity of each sleeve has forks 30 pivoted in uprights 32 on a vertical sleeve 33, which is mounted in a second sleeve 34 on a slide 35. The slide 35 moves longitudinally with respect to the shoe, to move the tools along the side of the shoe. A spring normally turns the sleeve so that the tool presses against the sole. A burnishing vibration is given to the tools by a constantly rotating shaft 44 provided with an eccentric 43, having straps 42 connected by univeisal joints with the shafts 28. On each side of the shoe, the shank tool operates along the sole until the slide 35 has moved sufficiently to bring it to the fore-post ; the head 27 is then locked in its vertical position, the tool swung out of engagement with the sole edge, the shaft 28 rotated through 180 degrees, and the forepart tool brought into position for the tool to operate on the sole, by a series of cams. After the forepart of the sole has been operated upon, the tools are held out of operative position. The cam-shafts operate in unison on each side of each of the pair of shoes in the double machine. The pair of slides 35, corresponding to the tools operating on the outer edges of the pair of soles, operate together, and similarly the slides for the inner sides operate together, but have a different movement from that of the outer sides. For each pair of slides, the distance travelled and the rate of traverse are adjustable, so that the shank tool may be adjusted to attain any desired position at the time of exchange of the tools. The means for operating the toe tool is shown in Fig. 7. The tool, which is mounted on a frame pivoted on a constantly rotating shaft 138, is connected through a link 140 with a bell-crank lever 141 rocked by an eccentric on the shaft 138. The tool is pivotally mounted on its frame, and is pressed against the sole by a spring. To move the tool round the toe, a pinion 150 on the tool frame is engaged by a rack 151 reciprocated by a cam. The toe tool is lifted from the sole, when the forepart tools approach the forward extremity of their movement, by inclines engaging under a projection 159 on the tool frame.