Adjustable radius and angle coping device
OwnerGerald A. Cornishinventor
Life of this patent
Estimating the term…
Abstract
A coping apparatus that performs a cope cut of varying diameters and angles on varying sizes, diameters, and types of materials without having to change the diameter of the cutting tool. The apparatus comprises a table with a clamp, a cylindrical housing with an aperture pivotally mounted to the table, a motor, a tool, and a yoke assembly. The yoke assembly is rotatably received within the housing and comprises a upper disc with a channel, a lower disc with a channel, a upper arm, a lower arm, a connector, and a handle. The arms are received in the channels of the upper and lower discs and moveable in a direction radial to the rotation of the discs. The motor is mounted to the lower arm and turns a spindle and the tool. Upon manipulation of the handle, the tool is plunged into the material to make the cut.
Claims8
An apparatus for coping a workpiece, the apparatus comprising:
- (a) a table, the table comprising:
- (i) a first end;
- (ii) a second end;
- and
- (iii) a clamp adapted to securely hold the workpiece;
- (b) a housing, the housing being cylindrical and pivotally mounted to the second end, the housing comprising:
- (i) a aperture, the aperture aligned with the table second end;
- (c) a yoke assembly, the yoke assembly comprising:
- (i) a upper disc, the upper disc rotatably received in the housing and containing a first channel and a first channel aperture;
- (ii) a lower disc, the lower disc rotatably received in the housing opposite the upper disc and containing a second channel and second channel aperture, the second channel aperture aligned with the first channel aperture;
- (iii) a upper arm, the upper arm slidably received in the first channel and movable in a direction radial to the rotation of the upper and the lower disc, the upper arm containing a recess, the recess aligned with the first channel aperture;
- (iv) a lower arm, the lower arm slidably received in the second channel and movable in a direction radial to the rotation of the upper and the lower disc, the lower arm containing a tool aperture, the tool aperture aligned with the second channel aperture;
- (v) a connector, the connector attached to the upper arm and lower arm;
- and
- (vi) a handle, the handle attached to the connector;
- (d) a motor, the motor mounted to the lower arm and adapted to rotate a spindle;
- and
- (e) a tool mounted to the spindle, the tool protruding through the tool aperture, second channel aperture, first channel aperture, and received in the recess, whereby the tool copes the workpiece as a user moves the yoke assembly through an arc using the handle.
An apparatus for coping a workpiece, the apparatus comprising:
- (a) a base;
- (b) a riser, the riser being connected perpendicular to the base;
- (c) a table, the table being connected to the riser opposite the base and parallel to the base, the table comprising:
- (i) a first end;
- (ii) a second end;
- and
- (iii) a clamp adapted to securely hold the workpiece;
- (d) a housing, the housing being cylindrical and pivotally mounted to the second end, the housing comprising:
- (i) a aperture, the aperture aligned with the table second end;
- (e) a yoke assembly, the yoke assembly comprising:
- (i) a upper disc, the upper disc rotatably received in the housing and containing a first channel and a first channel aperture;
- (ii) a lower disc, the lower disc rotatably received in the housing opposite the upper disc and containing a second channel and second channel aperture, the second channel aperture aligned with the first channel aperture;
- (iii) a upper arm, the upper arm slidably received in the first channel and movable in a direction radial to the rotation of the upper and the lower disc, the upper arm containing a recess, the recess aligned with the first channel aperture;
- (iv) a lower arm, the lower arm slidably received in the second channel and movable in a direction radial to the rotation of the upper and the lower disc, the lower arm containing a tool aperture, the tool aperture aligned with the second channel aperture;
- (v) a connector, the connector attached to the upper arm and lower arm;
- and
- (vi) a handle, the handle attached to the connector;
- (f) a motor, the motor mounted to the lower arm and adapted to rotate a spindle;
- and
- (g) a tool mounted to the spindle, the tool protruding through the tool aperture, second channel aperture, first channel aperture, and received in the recess, whereby the tool copes the workpiece as a user moves the yoke assembly through an arc using the handle.
Dependencies are inferred from the claim text.