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:
May. 30, 1995
Filed:
Apr. 30, 1993
Applicant:
Inventor:
Arnold J Pratt, Derbyshire, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
226108 ; 226112 ;
Abstract
A feed arrangement for a rotating bar includes a rotary drive carrying a series of axially spaced clamping devices comprising collets through which the bar passes. The clamping devices are axially reciprocated in phased sequence and the collet of each device closes upon the bar while the device is moving forwards. The sequence is so controlled that at all times the bar is clamped by the collet of at least one forwardly moving device and is thereby continuously fed forwards while being rotated by the active clamping device.