Saw blade alignment tool
OwnerSteve Horvathinventor
Life of this patent
Estimating the term…
Abstract
A device of utility in precisely setting the angular relationship of a circular saw blade of a radial bench type power saw, which includes a special protractor defined by removing adjoining segments of the linear leg and the curved leg thereof, and a modified T-square including a head piece having a curvature matching that of the curved leg of the protractor and a connected ruler blade extending radially toward the center of said protractor.
Claims19
A tool/device, for setting/adjusting the cutting angle of the circular saw blade of a radial, bench-type, power saw comprising, in combination;
- a generally flat, truncated protractor member, and at least one cooperating T-square member,
- said truncated protractor member comprising a primary elongate/base leg and, connected at one end, a curved leg, defining the arc of a circle, extending at least 90 degrees, but less than 180 degrees from said elongate/base leg, said curved leg having upper and lower surfaces connected by a curved peripheral edge,
- said base leg defining/corresponding to the radius of said arc and measuring 145/16 inches;
- said T-square including a head piece having a working edge surface congruent to and movable in slidable relationship with the perimeter of said curved leg.
A tool device, for use with a table, power saw unit having a circular saw blade extending above said table comprising;
- in combination
- a modified protractor, having a central opening, devoid of adjoining portions of the straight leg and circular leg of said protractor thereby leaving/defining a space/passageway leading to said central opening and
- a modified T-square having a curved head piece conforming to the curvature of the remaining curved leg of the protractor and adapted for sliding circular movement thereon,
- said curved leg portion containing degree markings on its flat upper surface adjacent to the perimeter,
- said space/passageway accommodating sliding movement of said protractor on said table and into surrounding relationship with said circular saw blade situated in said central opening.
The combination of a truncated protractor having an elongate linear base leg with a curved leg connected thereto, said protractor, having a central opening, created by a radial line severing a portion of the linear base leg and the connected curved segment, thereby defining a void or passageway connecting to said opening and a modified T-square featuring a curved head piece matching the curvature of said protractor, and a connected ruler/blade extending radially toward the center of said truncated protractor.
A modified/truncated protractor consisting of a linear base leg and an integrally connected curved bearing degree markings, in which the truncation leaves substantially one-half of the normally linear base leg and more than one-half of the circular leg enveloping a central open region, said truncation leaving void/clearance adapted to permit a saw blade extending above a work table surface to be surrounded by said truncated protractor responsive to sliding movement of said modified protractor member upon said work table surface and to assume a position of angular relationship with said base leg as determined by the degree markings.
Dependencies are inferred from the claim text.