Abstract:
A drill guide 10 comprising a V-block 20 including a first extension arm 22, a second extension arm 26, an edge 30 where the first extension arm 22 and the second extension arm 26 are joined 30 and form a V-shape 40, and an aperture 50 disposed in the edge 30 of the V-shape 40. A centerline 60 of the aperture 50 bisects a V angle 64 formed by the interior surfaces 23, 27 of the first and second extension arms 22, 26. This design allows the drill guide 10 to be placed over circular shaped material 90; a drill bit 92 to be received by the aperture 50; and the drill bit 92 to drill a hole may be drilled through the center of the circular shaped material 90.
Abstract:
A pocket hole jig tool system includes a base on which a workpiece is supported. A drill guide support is slidably mounted to the base. Drill guide bushings are movably mounted relative to the drill guide support for clampingly engaging the workpiece and for guiding a drill for engaging the workpiece. A stop collar assembly is adjustably mounted relative to the drill guide bushings to automatically ensure a proper pocket hole location and depth for the workpiece inserted in the tool system.
Abstract:
A drilling guide or jig for guiding an elongated drill bit for drilling a long hole through a panel such as a door from one edge to a point adjacent another edge thereof. The guide is formed by a rigid, elongated, rectangular base plate defining an elongated slot and positionable along one edge of the door. A pair of arms are mounted one on each long side edge of the plate at about the midpoint thereof and extend generally perpendicularly to the plate. The arms define at one end a pair of spaced apart jaws extending from said plate and adapted to hold the plate on the door or panel. The arms further define a pair of spaced apart support members extending from the plate opposite to the jaws. A drill guide block is pivotally mounted between the free ends of the support members in spaced relation to the plate, and adjustably supports a drill guide tube extending between the arms. The tube supports and guides an elongated drill bit for drilling at a selected angle through the elongated slot in the plate and the panel for producing a long hole extending generally transversely through the panel.
Abstract:
A door drilling fixture for drilling a long straight longitudinal hole in a door. The fixture includes an elongated frame having a U-shaped cross-section for mounting about the hinged edge of a door and an arm projecting from and pivotally engaged to the frame for guiding a long drill bit. The door is placed between the right and left sections and the door edge flat against the center section of the U-shaped frame. Two hold-down bolts thread through upper and lower portions of the left section of the U-shaped frame to press the door against the right section of the U-shaped frame. Slots in the frame mechanically isolate the upper and lower portions of the left section from the middle portion of the center section. The arm houses two spaced apart drill bushings having a center line for rotationally engaging and guiding the drill bit through the drill bit aperture and into the edge of a door. The pivot line between the arm and the frame intersects the center line of the drill bushings, thereby enabling the arm to be pivoted for changing the inclination of the drill bit without changing the entry point of the drill bit on the door jamb edge.
Abstract:
An installation method for security switches located in door jambs and connection into security system wiring is provided together with a mounting fixture for simplifying the installation. To avoid wall damage, with cylindrically packaged security switches inserted snugly in a hole drilled part way through a door jamb a few inches from the floor, an installation fixture holding a drill at an angle is inserted into the switch mounting hole for drilling at a desired angle a system wire passageway hole into the switch mounting hole wall to extending downwardly through the floor. Another drill held in the fixture at a different angle permits routing of the mounting hole wall form a wire transit channel axially adjacent to an inserted switch for passing the system wires back to connect with the security switch. Thus, after drilling a switch mounting hole, the fixture is inserted thereinto and a wire passageway hole is drilled at a downwardly slanting angle through the floor for connection thereunder into a security control system. Then the fixture, which comprises a cylindrical barrel that abuts the switch mounting hole with a stud extending from each barrel end for entering the switch mounting hole, is reversed using the other stud for inserting a routing drill at a different angle to rout out a wiring channel from the wire passageway entrance backward to the rear of the security switch.
Abstract:
A jig used for precision boring of holes in a working surface of an elongate work piece includes a pair of mounting plates and an elongate connecting member for mounting the plates together in adjustable, spaced positions such that the plates face each other and can be moved in a direction toward and away from each other. Engagement pad members are attached to mutually respective, bottom sides of the pair of plates. The pad members are adapted to engage opposite sides of a work piece in firm engagement therebetween when the pair of plates are moved toward each other, with the work piece being disengaged when the pair of plates are moved away from each other. A guide member is mounted between the pair of plates and is adapted to guide a boring tool in a linear movement toward and away from a working face of the work piece. The guide member is mounted and positioned such that the linear movement of the boring tool lies in a plane passing generally through the longitudinal axis of the work piece. The mounting of the guide member further allows for movement of the guide member in an arcuate path such that the angle between the direction of linear movement of the boring tool and the longitudinal axis of the work piece can be selectively varied.
Abstract:
A jig which is for guiding a drill bit into a workpiece and which includes opposed end plates and jaw members for clamping the workpiece. A guide template is mounted between the end plates to travel in an arcuate path relative to the jaw members.
Abstract:
Tooling for reconditioning a valve guide in a cylinder head for an internal combustion engine having a valve seat and a coaxial valve guide in the cylinder head on an axis either inclined or at a right angle to the combustion chamber surface of the cylinder head, including a guide plate having a flat bottom surface adapted to rest on the surface of the cylinder head over the valve seat and valve guide, a bore through the guide plate on an axis at an angle to the flat bottom surface of the guide plate and at the same angle as the valve guide, a tool guide in the bore in the guide plate having a conical lower end surface engageable with the bottom edge of a valve seat in the cylinder head for laterally locating the guide plate relative to the valve seat, a flat edge along one side of the guide plate adapted to be positioned relative to the original hole machining pattern in the surface of the cylinder head to angularly locate the axis of the bore in a predetermined position relative the original machining pattern and coaxial with the valve guide, a guide bar mountable on the cylinder head adjacent one edge thereof and in relation to the original machining pattern and having a side surface coacting with the flat edge of the guide plate for angularly locating the guide plate, and means for securing the guide plate to a cylinder head in properly adjusted position.
Abstract:
A guide body having a passage therethrough for accommodating a tool bit is pivotally mounted between a pair of spaced, upstanding plates secured to a base member. A stop member adjustably threaded into the passage controls the depth of penetration of the tool bit. Lateral projections extend from opposite sides of the guide body through arcuate slots in the plates for receiving fasteners to secure the guide body in a selected angular position relative to the base member. In another form, a pair of rods pivotally mounted adjacent the base member extend through lugs projecting laterally outwardly from opposite sides of the guide body and set screws in the lugs engage the rods for securing the guide body in a selected angular orientation.