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. 19, 1977
Filed:
Mar. 29, 1976
Francis D Logan, Houston, TX (US);
Camco, Incorporated, Houston, TX (US);
Abstract
A self-centering steady rest for supporting the free end of a cylindrical workpiece held in a chuck in a machine tool coaxially with the chuck axis. A first support including a pair of supporting rollers positioned on one side of the axis of the chuck and a second support including a second pair of supporting rollers positioned on the opposite side of the axis of the chuck from the first support. The opposing pairs of rollers are supported an equal distance from the axis of the chuck. Actuating means is connected to the first and second supports for simultaneously and equally moving the first and second supports and rollers towards the axis of the chuck for engaging and supporting the free end of the workpiece coaxially with the chuck axis. Preferably the first and second supports move in tracks in a base adapted to be slidably and movably secured to the ways of the machine tool for positioning the first and second supports adjacent the free end of the workpiece. Preferably each pair of supporting rollers is connected to an insert removably connected to one of the first and second supports whereby different sets of rollers may be connected to support different ranges of workpiece sizes.