A miter cutting guide apparatus is provided to aid in the making of miter cuts used on wood millwork as trim around floors, walls, doors, cabinets and the like and which can also be used on ceramics such as for tile cutting. Two miter arms are pivotally attached by a pivot locking means such as a screw. Each miter arm has a complementary base resting underneath and being guidably received by each miter arm, thereby allowing each miter arm to reciprocate along its complementary base.
RELATED APPLICATIONS
The present invention was first described in Disclosure Document No. 467,912 filed on Jan. 20, 2000. There are no previously filed, nor currently any co-pending applications, anywhere in the world.
An auxiliary appliance, known as a mitering device, for setting the cutting angle in miter-cutting operations prior to the cutting proper, comprising two arms (1, 2), which are pivotally interconnected by means of a hinge, each one of said arms having at least one orientation face, and an angle-indicating means (4), which is connected to the arm-interconnection hinge via a gear mechanism (5), said gear mechanism being adapted, upon relative pivotal motion of the arms, to transfer essentially half of said pivotal motion to the angle-indicating means relative to the arms.
A crown molding miter gauge has first and second straight edges extending oppositely tangent from circular members wherein one of the circular members includes a Cartesian reference chart reconfigured as a concentric circular chart, fixed with respect to the first straight edge, and the second straight edge is concentrically rotatable, so that the first and second straight edges may be conformed to a wall corner wherein the second straight edge acts as the horizontal reference of the reconfigured Cartesian chart and an indicator, fixed with respect to the second straight edge, acts as the vertical reference of the reconfigured Cartesian chart.
Taught herein is a protractor capable of measuring angles within a room and angles related to the intended orientation of molding with respect to the room. Using these angles, the present invention will calculate and display the appropriate angles at which a miter saw must be set to produce mitered joints for the installation of trim and crown molding.
