Importance

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Abstract

A device as disclosed to facilitate the placement of locks into doors including key-in-knob lock sets, mortise deadlocks as well as independent knobs and deadbolts. The device includes a body which is detachably securable with respect to a door edge in which it includes calibrations or gradations therealong in order to align the correct spacing normally independently measured by a locksmith. The body member defines an aperture along the portion adjacent to the edge of the door, which aperture is adapted to receive selectively a plate for guiding of boring in through the edge as well as to receive a plate for guiding of routing out the edge of the door about the bored out hole to provide a recess to receive the face of the locking mechanism. The pilot block for guiding of the boring is movable with respect to the plate placed into the aperture of the body. The body also is adapted to be secured to a member which extends adjacent over the front and rear face of the door to guide boring perpendicular to the door face for placement of other locking mechanisms including a knob or deadlocking mechanism. The rear face of the door is adapted to be abutted by an abutting block which prevents fracturing of the door when boring through the member extending over the front face is being completed.

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First Claim