Machine for performing an operation along a non-rectilinear work

Details Machine for performing an operation along a non-rectilinear work Machine for performing an operation along a non-rectilinear work

1977-11-25

1979-01-16

Lawson, Patrick D.

Leather manufactures

Machines

Roughing

12 1R, 12 77, C14B 144, A43D 9500

Patent

active

041342780

ABSTRACT:
A machine for roughing the margin of a shoe upper a desired distance inwardly of the non-rectilinear margin periphery during the rectilinear movement of a shoe assembly, comprising the upper mounted on a last, past a roughing tool. A sensing member, movable towards and away from the shoe assembly in unison with the roughing tool, is caused to bear against the side of the shoe assembly during the shoe assembly movement and the roughing tool is so spaced from the sensing member as to be engageable with the margin. The sensing member is laterally offsettable during the shoe assembly movement to insure that the roughing tool engages the upper margin inwardly of the margin periphery during the movement of upper margin peripheral portions that are inclined with respect to the direct of rectilinear movement of the shoe assembly.

REFERENCES:
patent: 3157896 (1964-11-01), Kamborian et al.
patent: 3975932 (1976-08-01), Vornberger
patent: 4020660 (1977-05-01), Bergeron

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