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. 18, 1976
Filed:
Nov. 06, 1974
Glen E Johnson, Brookfield, CT (US);
Other;
Abstract
The rough hewn bench plane attachment of the present invention allows a standard bench plane to be converted into a hewing tool that is able to create hewn lumber similar in shape and design to hand-hewn lumber. The attachment incorporates a chassis assembly mounted under the front knob of the bench plane. An eccentric rolling assembly connects to the chassis assembly and causes an eccentric rolling effect as it rolls over the lumber. This eccentric movement of the wheels causes the bench plane to correspondingly move in an eccentric manner with respect to the workpiece so that a cutting iron of the invention replacing the regular cutting iron of the plane generates varying depth gouges in the lumber workpiece. The cutting iron of the invention has an arcuate cutting edge that enhances the hewing of the lumber by varying the transverse depth of the cutting edge in the lumber workpiece. Forward motion of the adapted bench plane causes repeated non-uniform gouging of the lumber workpiece with a resultant hand-hewn appearance.