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:
Apr. 07, 1992
Filed:
Nov. 29, 1990
James R Flanders, Blaby, GB;
Richard E Storer, Syston, GB;
British United Shoe Machinery Ltd., Leicester, GB;
Abstract
The speed of rotation of a side wall roughing tool (250) can be varied in accordances with the speed of relative movement between the tool (250) and side wall portions of the shoe being roughed (the traverse speed of the tool). To this end, a flow control arrangement (F) is provided including a plurality of flow control valves (CV1, CV2), the arrangement being such that, with the rate of flow through each such valve set, the operator can select one or other to be switched into the hydraulic circuit by which a hydraulic motor (232) is driven, said motor effecting rotation of the tool. The selection of one or other flow control valve (CV1, CV2) is made by the operator during the digitishing of the path of the tool relative to the shoe and such information is stored together with the programmed instruction, in the form of digitised corrdiante axis values, for said path.