Abstract: A method for removing material from a portion of an edge of a shoe upper folded over the bottom of a shoe, comprises the steps of moving the bottom of the shoe in relation to lateral roughing wheels (15) for roughing the edges according to two different paths and in relation to a first (26) and a second tool (22) for roughing the heel and toe areas. The roughing wheels (15) rotate according to an axis substantially parallel to the length of the footwear to provide a removing action directed towards the inside of the bottom, and are movable along a path comprising a forward stroke and a return stroke which are carried out at different distances towards the inside of the bottom. The first tool and the second tool rotate to provide a removing action directed towards the inside of the bottom along a path substantially parallel to the length of the footwear in respective heel and toe areas.

Abstract: In a patterned matrix for use in conjunction with the skiving of shoe parts upon a splitter machine, the pattern matrix being applied contiguous with the intended shoe part for application to the machine, the pattern matrix including along its edge a relief or raised portion that urges the aligned edges of the shoe part into a greater skiving out than any other portion of the shoe part, and another relief being of greater density, comprising a cord, arranged within the first relief or raised portion and effecting during skiving a deeper cut into the intended shoe part to assure a uniformly weakened area for forming the fold line for the shoe part when being fabricated into a shoe component. A pair of patterned matrixes may be adhered together, as through a pressure sensitive material, with the relief member therebetween, for allowing usage of the patterned matrix for forming skived edges upon shoe parts of reverse proportions, as where each may be constructed into a pair of shoes.

Abstract: The machine comprises a dished cutter rotary supported by a shaft connected to a driving shaft by means of a sliding coupling device comprising an extension of the shaft having a radial pin sliding in slots of a hollow shaft.A grinding wheel is supported by an arm laterally hinged to the cutter and driven by an independent motor to sharpen the cutter with a constant cutting edge. The machine comprises moreover, a clutch controlling the feeding roller for material to be skived, which includes spring means providing thrust, while a speed variator makes it possible to adjust the speed of rotation of the feeding roller.