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:
Oct. 17, 1978
Filed:
Feb. 27, 1976
Peter D Kaye, Monroe, OR (US);
Bell Industries, Los Angeles, CA (US);
Abstract
A grinder for sharpening saw chain cutting teeth includes a base, an arcuate guide arranged on the base, a power-driven rotary grinding wheel mounted on a pivotal motor arm movable with a mounting bracket along the arcuate guide and a releasable, self-centering clamp for holding a segment of a saw chain in position beneath the grinding wheel. The clamp includes laterally opposed elongate bars which support a saw chain and which are each simultaneously displaceable at equal rates toward a preselected datum line. The preselected datum line intersects a fixed, reference axis about which the mounting bracket is angularly displaced. Because the elongate bars are movable equally with respect to the preselected datum line, the lengthwise centerline of a saw chain will always be maintained substantially aligned on the preselected datum line regardless of the width of the chain. The arcuate guide is an elongate bar having an arcuate guide track which receives the motor arm mounting bracket. The arcuate guide is pivotal about a pivot axis so that the mounting bracket may be angularly displaced along the arcuate guide and offset at varying distances from the reference axis.