Machine for performing an operation along a non-rectilinear workpiece periphery
Patent 4134278 Issued on January 16, 1979. Estimated Expiration Date: 
November 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3157896 Roughing machine having tool position adjusting mechanism Roughing machine having tool position adjusting mechanism Patent #: 4020660 InventorAssigneeApplicationNo. 05/854947 filed on 11/25/1977US Classes:69/6.5, Roughing12/1R, MISCELLANEOUS12/77Rotary toolExaminersPrimary: Lawson, Patrick D.Attorney, Agent or FirmInternational ClassesA43D 119/00 (20060101)A43D 37/00 (20060101) C14B 1/00 (20060101) C14B 1/48 (20060101) AbstractA 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. | |
