Patent GB-190822596-A (GB)
Title: Improvements in or relating to Machines for Lasting Boots and Shoes.
Inventor: MAUDE WALTER
Filed: 1909-10-24
Granted: 1909-10-24
Abstract: 22,596. Maude, W. April 24, 1909. Lasting.-In last ing-machines employing a die or matrix more or less conforming to the contour of the shoe &c., the die or matrix is made in sections elastically he l d together by means of springs. Front and rear last supports may be provided, the latter being arranged to rock rearwardly in a yielding manner during the lasting operations. When lasting " veldtschoen," pivoted plates may be arranged on the matrix to thrust inwards the free edge of the upper at the waist ; for " tackless " [shoes &c., spring- mounted wipers may be used in lasting the toe and side portions of the upper. The last D is supported upon a yielding heel-support 14 and a yielding toe-rest 10. The toe-rest is mounted in a bracket 9 fixed under a table A. The power is arranged in a bearing 12 pivoted on a pin 13. The bearing 12 is yieldingly pressed against a stop by a spring 16 to control the rocking movement. The matrix C is in two parts mounted between springs 4, which abut against adjustable brackets 5 on the table A. Rubber or like cushions 6 form the upper-engaging edges of the matrix. The last D is depressed by a spring- controlled treadle which operates a hooked rod 26. A cam-piece 29 on the rod 26 engages a stationary part of the machine frame, and co-operates with a spring 30 to cause the hooked rod 26 to engage and disengage an eye-bolt D' on the last. A depending catch is adapted to hold the treadle when depressed. A hinged register plate 35 is used to determine the position for the insole. The matrix C for " veldtschoen " carries two pivoted side plates 32, which may be operated by handles 34 to lay the waist portion of the upper over the last after stretching. The insole is pressed upon the cemented edges of the upper by a pressure device 36. This operation is shown in section in Fig. 5. The lasted shoe is released and automatically raised by opening the matrix, which slides in lateral end guides 3 on the table. A rock-shaft 23 is longitudinally arranged in bearings beneath the table. Levers 22 on this shaft are connected to pivoted levers 18, the upper ends of which project into the sections of the matrix C. By operating a handle 25 on the rockshaft and simultaneously freeing the treadle, the lasted shoe is immediately freed and rises automatically on the resilient rest 10, 14. The pivoted heel-support causes the toe of the upper to engage the matrix first on the depression of the treadle, and the upper is thus strained from the middle outwards. For lasting "tackless" shoes, spring- mounted wiper blades 37 are employed for lasting the toe and sides. These blades have extensions 41, are pivoted to each other at 40, and are provided with operating-handles 44. One of these blades is resiliently pivoted to the table at 42, and the free extension 41 is arranged to move beneath a spring- pressed bar 43. The front ends of the blades 37 are adapted to engage spring studs 45 on a hinged clamping-frame 38. Fig. 9 shows a section of an upper lasted according to this latter method.