Roughing machine having tool position adjusting mechanism
Patent 3975932 Issued on August 24, 1976. Estimated Expiration Date: 
August 24, 1993. 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.
August 24, 1993. 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 3077098 3298048 3843985 InventorAssigneeApplicationNo. 621188 filed on 10/09/1975US Classes:69/6.5, Roughing12/1R, MISCELLANEOUS12/77Rotary toolExaminersPrimary: Lawson, Patrick D.Attorney, Agent or FirmAbstractA roughing machine for roughing the margin of an upper of a shoe assembly comprised of a last having an insole on its bottom and the upper mounted thereon with the margin lying against and being secured to the insole periphery. The machine incorporates a margin control mechanism that enables a roughing tool to engage the upper margin a relatively great distance inwardly of the periphery of the shoe assembly bottom during the passage of portions of the sides of the shoe assembly bottom past the roughing tool and to engage the upper margin a relatively small distance inwardly of the periphery of the shoe assembly bottom during the passage of the remainder of the shoe assembly bottom past the roughing tool. | |
