Patent GB-190811880-A (GB)
Title: Improvements in or relating to Machines for Re-forming 'Turn' Shoes.
Filed: 1908-06-01
Granted: 1909-06-01
Abstract: 11,880. Bates, A., British United Shoe Machinery Co., and Cooper, H. E. June 1. Moulding; soles; turning turned shoes; trees and stretchers. -The machine is intended for a preliminary operation upon turned shoes, which are subsequently placed upon a sole-levelling machine. The invention comprises the combination of means for stretching the boot, and means which, by moulding the sole, not only re-forms it, but stiffens it so that it retains the boot in approximately the form into which it was stretched. The machine described comprises an expansible jack, a last support of known construction, and sole-moulding means. The shoe is first placed upon the jack A<3>, B<1> and stretched, a few light strokes being given to the sole by the roller N<1>. It is then removed from the jack, a last is inserted, and the whole is placed on the last support P<4>. The sole moulding is then continued until the sole is thoroughly stiffened. The expansible jack may be of a known automatically-actuated type, expanded by hand or power, but is preferably of the type shown and automatically expanded in a yielding manner to avoid injuring the shoe. The solemoulding roller rests upon a support Q and is movable by hand to operate on work upon either the jack or the last-support. It may be driven by flexible connexions arranged to uncouple it. automatically from the driving-means when in position on its rest. The expansible jack consists of an interchangeable toe-piece A<3> secured to the column A' of the bed, and an interchangeable heelpiece B' secured to the upper end of a lever B pivoted at A<4> to the column A'. The lower extremity of this lever carries a socket joint C<1>, through which passes a rod C screwed into a boss D' forming part of an eccentric strap D<2>. The lever B is yieldingly operated by the rotation of the eccentric D through a spring C<3> surrounding the rod C between a nut C<4> and the socket joint C<1>. The force of the spring may be adjusted by means of the nut C<4>. A hand-wheel C<5> is provided by means of which the stroke of the heelpiece B' may be regulated, the rod C being, by this means, screwed in or out of the boss D'. In order that the lever B may be positively operated to contract the jack, the screwed end C' of the rod C is enlarged to form an abutment for the socket joint C<1>. The eccentric D is driven from a shaft F, carrying fast and loose pulleys F<7>, F<8>, through a clutch F<2> and gears F<1>, E' arranged to give half a revolution of the eccentric for one revolution of the gear-wheel F<1>. The clutch F' is automatically disengaged after one revolution of the gear-wheel F<1>, thus causing one movement of the jack, for expansion or contraction, each time the clutch is operated by a hand-lever F<3>. The clutch F<2> may be arranged to give any predetermined number of expansions of the jack before the latter stops in its expanded condition. The shoe moulding means consists of a roller N<1> adapted to rotate on a shaft N having handles N<3>. A second shaft L is journaled at right-angles to the roller shaft N in a bracket M. Bevel-wheels L', N<2> connect the shaft L and the roller N'. A shaft G journaled in the machine frame is driven as shown from the fast pulley F<7> and is geared to a vertical shaft H, which is adapted to drive the roller N<1> through a clutch member J<1> and a telescopic rod K having universal joints at both ends. The arrangement is such that, when the sole-moulding means is placed upon its rest Q and the telescopic rod K is at its maximum extension, the clutch member J<1> is uncoupled from the shaft H, to be automatically recoupled when the said means is removed from its rest to operate upon the work. The universal couplings are ball-andsocket joints provided with driving-pins on the ball and co-operating slots in the socket. The bracket M carries guide cheeks M<2>, which limit the movement of the rod K with respect to the roller N<1>.