Leather manufactures – Machines – Roughing
Patent
1977-08-23
1978-11-21
Lawson, Patrick D.
Leather manufactures
Machines
Roughing
12 77, C14B 144, A43D 9500
Patent
active
041260201
ABSTRACT:
An automatic shoe bottom roughing machine has tool supports mounted on movable carrier arms to permit movement of the arms widthwise across the shoe bottom, the tool support being pivotable heightwise, both the tool supports and the arms being light in weight to reduce unnecessary movement or bounce in the tools, the machine including a one-way hydraulic damping arrangement effective to resist upward movement of the tools.
REFERENCES:
patent: 3831405 (1974-08-01), Vornberger
patent: 3843985 (1974-10-01), Leonhardt
patent: 3975932 (1976-08-01), Vornberger
Davies John
Tutt Kingsley J.
Willbond William F.
Halgren Donald N.
Lawson Patrick D.
Megley Richard B.
USM Corporation
White Vincent A.
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