Patent GB-244529-A (GB)
Title: Improvements in or relating to machines for grading, or for evening and grading soles, and other parts of boots and shoes, and for other allied uses
IPC: A43D1/08
Filed: 1924-09-19
Abstract: 244,529. British United Shoe Machinery Co., Ltd., and Roberts, W. T. B. Sept. 19, 1924. Splitting-apparatus.-A machine for grading and marking and/or evening and/or sorting boot soles &c. of the type set forth in Specification 190,241 has splitting or like rolls set from the grading means by movement automatically of parts only immediately adjacent the splitting rolls, auxiliary means for ending the looking of the grading means before the workpiece reaches a given point, work fed through the machine between two chains and antifriction members, rotary wedges for setting the splitting-rolls, and splitting-rolls with a gap never less than corresponding gaps of the grading- rolls. The rotary stamp shaft 9 is clutched to a constantly rotating shaft 10 by a plate 11 with three fingers between which work conveyer chains 8 carry the workpiece from grading rolls 1, 2 to splitting rolls 3, 4. The plate 11 is adjustably secured to an arm 17 on a shaft 19 connected by lever 20, Fig. 1, to a clutch trip rod 22 engaging a block 23 on a clutch lever 24. Depression of the lower grading roll 2 through segment-lever 32, segments 33, 34, rack-bar 35 and a shaft 36 causes movement of a setting slide 37, Fig. 2, carrying ratchet blocks 38, 39 with opposing teeth engaged by spring-pressed pawls 42, 43 on an adjustable sliding member 44. The pawls 42, 43 are released for locking the slide 37 by rods 48, 49, the latter from a shoe 50, lifted by the workpiece, and acting through linkage 51 - - 56, and the former from the gate 6. The slide 37 has a tapered end 61. which positions a wedge member 62 on a slide 108 engaged by a catch 105, reciprocated from a rod 99 connected by a slip-joint 102 to an arm 97, oscillated bv links 95, 94, 92 by a cam fi3 on the shaft 9. A link 66 is swung downwards to allow the gate to fall on a workpiece by an arm 70 on a shaft 71 carrying the segment lever 32, and is moved horizontally for lifting the gate by a cam 64 and lever 30, 65. The upper splitting-roll 3 is positively set by wedge members 74, rotated from the slide 108 engaging spiral blocks on the upper splitting-rolls. The latter are pressed upwards by a spring 116*, Fig. 3, through linkage 118, 120, 121, 125 engaging a pin 126. Auxiliary means for releasing the pawl 43, instead of wa@ting for the shoe 50 to act in the case of a long workpiece, comprise a reciprocating slide 127, Fig. 1, actuated by the gate-lifting lever 30 causing a pawl 128 on the bar 56 to drop into a notch 130 in the slide 127. When the shoe 50 rests on the workpiece, the pawl 128 bears on the slide 127; dropping of the shoe results in the pawl lifting. The workpiece is positioned by side fingers actuated by right and left handed screws to move them relatively, and by a second screw for moving them together. The workpiece is moved by the conveyer chain 8 beneath a presser member formed of bars 170 independently yieldable with peripheral grooves containing balls 171. Specifications 17808/09, 18752/12, 147,921, 191,838; and 219,394, [Class 100 (ii), Printing processes &c.], are referred to.