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:
Mar. 23, 1976
Filed:
Feb. 27, 1975
Roy Ronald Oxlade, London, EN;
David James Westgarth, London, EN;
British Steel Corporation, London, EN;
Abstract
A hydraulically operable device for stretching a hollow roll arbor to slightly reduce the arbor diameter in order to fit rolling sleeves around the arbor. The device includes a rod which is inserted into the hollow arbor and a hydraulically operable piston and cylinder arrangement at one end of the rod to apply a load through the rod to the arbor. A circular split collett extends around the piston and cylinder arrangement and engages at one end in a reaction block which reacts in response to the applied hydraulic pressure and at its other end with the roll arbor. The collett is held to the reaction block and to the arbor by annular rings, so that when a load is applied to the rod, the arbor is stretched longitudinally.