The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1983
Filed:
Jun. 05, 1981
David C Reedman, Melton Mowbray, GB;
Kingsley J Tutt, Birstall, GB;
USM Corporation, Farmington, CT (US);
Abstract
Machine for performing a progressive roughing operation on shoe bottoms has a three-axis computer controlled stepping motor arrangement for moving two rotary radial roughing tools along a pre-determined path in relation to the shoe bottom being operated upon. The tools are also mounted on a common sub-frame for pivotal movement about a transverse axis which extends tangential to the shoe bottom engaging portion of the operating surface of the tools, again by computer-controlled stepping motor. Grinding stones are provided for grinding the tools, and a further stepping motor operates to move the tools relative to the sub-frame to maintain the shoe bottom engaging region of the operating surface of each tool in the datum plane in which said transverse axis lies.