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. 20, 2001
Filed:
Feb. 03, 1999
Robert J. Brinkman, Roch., NY (US);
C. J. Winter Machine Technologies, Inc., Rochester, NY (US);
Abstract
The attachment includes a generally U-shaped bracket having a pair of roll arms which are pivotally mounted intermediate their ends on the outer ends, respectively, the two arms of the U-shaped bracket. Each roll arm has a thread roll rotatably mounted on its outer end and a roller follower rotatably mounted on its inner end. The bracket is secured on the slide of a screw machine for reciprocation thereby in a direction selectively to engage the thread rolls tangentially with diametrally opposite sides of a rotating workpiece that is to be threaded. The roller followers on the opposite ends of the roll arms are maintained resiliently into rolling engagement with the opposed, inclined surfaces formed on the wedge-shaped forward end of a thread roll adjusting element, which is mounted on the bracket for adjustment by a manually rotatable knob selectively to shift the wedge-shaped forward end thereof in opposite directions thereby to vary the space separating the roller followers, and consequently the thread rolls.