Abstract: The method and apparatus for drilling holes and optionally inserting fasteners of the present invention provide for efficiently drilling holes through a multiple-layer structure because the layers are securely held together during the drilling by an electromagnet and a clamp, each on opposite sides of the structure. The electromagnet and clamp hold the layers together so tightly that burrs do not form within the holes and debris does not accumulate between the layers and, therefore the layers do not have to be disassembled after drilling. In addition, the apparatus and method of the present invention provide for initially drilling the hole with a countersink and for inserting a fastener into the hole, through the electromagnet, immediately after drilling the hole, such that the hole does not have to be revisited after reassembly and drying of the sealant in order to drill a countersink and/or insert a fastener.

Abstract: The drilling of a hole through at least two structural components in alignment with a predrilled hole or marked location in one of the structural components is facilitated by a clamping mechanism that has a bail with two legs. One leg carries a first clamping section with a guide channel for a centering pin or a drill bit. When the centering pin has served its purpose it is removed from the guide channel which then guides the drill bit. The other leg carries a second clamping section opposite the first clamping section. The second clamping section has a pressure bushing drivable by a clamping drive for clamping the second structural component against the first structural component for drilling a hole through all structural components including through a predrilled hole or for simultaneously drilling all structural components at the marked location. The pressure bushing has a hollow free end forming a cavity.

Abstract: A pressure clamp assembly for clamping a plurality of overlapping members together. The pressure clamp includes a pair of compression members attached to a clamp body and driven together by a power source. The power source includes a fluid pressure cylinder that repeatably produces high clamping forces so as to inhibit the production of inter-laminate burrs during drilling. The compression members each include an elongated compression foot that distributes the clamping pressure over a wide area to allow drilling in a relatively wide range of locations. In addition, each compression foot defines a drill bit assembly guide that facilitates accurate hole drilling through multiple overlapping parts.

Abstract: An adjustable holding device comprising a base and a guide removably secured to the base is disclosed. In one embodiment, more than two guide channels are angularly disposed within the guide to guide a drill bit, wherein the more than two guide channels provide multiple two-hole drilling combinations. In another embodiment, a step block is used to elevate the workpiece, thus allowing thinner workpieces to be accurately drilled. In yet another embodiment, a riser block is used to elevate and move the guide laterally backwards to allow thicker workpieces to be accurately drilled. In yet another embodiment, support wings can be used not only to support a large workpiece, but can also be used as a pre-drill guide for depth collar positioning along a drill bit.

Abstract: The woodworking doweling jig has first and second clamp members slidably mounted on guide rods. Drill guide holes are provided in the clamp members or in separately adjustable drill guide members. When the separate drill guide members are provided, they are slidably mounted on the guide rods to maintain alignment. Dowel guide slots are provided in an alignment member which may be part of the upper clamp member. The alignment member has dowel guide slots in it which are in alignment with the drill guide holes in the guide member(s). Adjustment can provide for dowel drilling the same distance from one workpiece surface for aligning the surface. The jig can also be used for mounting the end of one plank against the side of a second plank either at its end or away from the end.

Abstract: The pocket drilling fixture has a clamp base with a clamp face thereon. Opposing it is a clamp body with an opposing clamp face. Clamp structure, including a clamp arm on the base urges the faces together to clamp over a workpiece therebetween in a clamping direction. A guide carrier is mounted on the base to move in the direction at a right angle to the clamping direction. The base has a turret thereon with stops which can be positioned beneath the guide carrier to set its height above the base so that height can be preselected, depending on the workpiece thickness.

Abstract: A drilling apparatus for panels of wood, plastics, aluminium or the like, comprises conveyor means for conveying a panel to be processed along a horizontal axis x, in an intermittent manner, to locate the panel at a tool bearing rotary turret, and being characterized in that the apparatus further comprises top horizontal guide means, vertically arranged along an axis y; abutment means at the horizontal guide means, and suitable to translate along an axis z to fit their position to the thickness of the panel being processed; holding means applied to vertical uprights and suitable to form a fixed support wall for the panel being processed, bottom guide means adapted to translate along the axis z, independently from the horizontal guide means, and which can be adjusted depending on the thickness of the panel, which can be different at different regions of the panel itself.

Abstract: A pocket hole drilling and screw installation jig for workpieces is provided. The jig comprises a bar-shaped base having a flat surface to contact workpieces, a fixed stop and a movable stop to secure workpieces, a clamp for holding the workpieces together; and a fixed or movable drill guide for guiding a drill for forming a pocket hole. The drill guide has a body, and through holes obliquely formed in the body. The body has a flat lower surface, which is flush with the flat surface of the base. Each of the through holes forms a drill guide portion having a lower end and an upper end. The lower end terminates flush with the lower surface of the body. A stop flange limiting the movement of a drill bit forming pocket holes is provided at the upper end of the drill guide portion.

Abstract: The present invention accurately positions and affixes by a simple device and operations a drilling jig for processing non-through-holes from the edge of an edged spectacle lens toward the inside of the lens. The above-mentioned lens is held and positioned using a blocking jig, which is attached to an edged spectacle lens, and, in addition, a drilling jig is positioned using a feed-set guide base and guide stopper.

Abstract: A pressure clamp assembly for clamping a plurality of overlapping members together. The pressure clamp includes a pair of compression members attached to a clamp body and driven together by a power source. The power source includes a fluid pressure cylinder that repeatably produces high clamping forces so as to inhibit the production of inter-laminate burrs during drilling. The compression members each include an elongated compression foot that distributes the clamping pressure over a wide area to allow drilling in a relatively wide range of locations. In addition, each compression foot defines a drill bit assembly guide that facilitates accurate hole drilling through multiple overlapping parts.

Abstract: An auxiliary bench is retractably connected to an underside of a main bench and includes two rods and a handle. The main bench has tow recesses defined in a peripheral flange thereof and the two rods are engaged with the two recesses. A retaining member is connected to an underside of the main bench by a lock member and has two grooves in which the two rods are movably received. The auxiliary bench is pulled to support long object to be drilled.

Abstract: A drill guide that is capable of guiding the drilling holes, in particular lockwire holes, transversely through one corner of a nut at an oblique angle to a face thereof and a method for using same. The drill guide comprises at least one guide component having a first and a second side transverse to the first side. The first side has a recess with first and second surfaces for receiving the corner of the nut, the first surface being closer to the second side. Also included is a drill bit guide for guiding a drill bit of a drill that is accessible from the second side and extends towards the first surface of the recess along a longitudinal axis in the direction of the second surface of the recess so that the drill bit is capable of drilling a hole transversely through the corner of the nut at an oblique angle to the face of the nut that the drill bit initially engages.

Abstract: An adjustable holding device comprising a base and a guide removably secured to the base is disclosed. In one embodiment, more than two guide channels are angularly disposed within the guide to guide a drill bit, wherein the more than two guide channels provide multiple two-hole drilling combinations. In another embodiment, a step block is used to elevate the workpiece, thus allowing thinner workpieces to be accurately drilled. In yet another embodiment, a riser block is used to elevate and move the guide laterally backwards to allow thicker workpieces to be accurately drilled. In yet another embodiment, support wings can be used not only to support a large workpiece, but can also be used as a pre-drill guide for depth collar positioning along a drill bit.

Abstract: A drill guide that is capable of guiding the drilling holes, in particular lockwire holes, transversely through one corner of a nut at an oblique angle to a face thereof and a method for using same. The drill guide comprises at least one guide component having a first and a second side transverse to the first side. The first side has a recess with first and second surfaces for receiving the corner of the nut, the first surface being closer to the second side. Also included is a drill bit guide for guiding a drill bit of a drill that is accessible from the second side and extends towards the first surface of the recess along a longitudinal axis in the direction of the second surface of the recess so that the drill bit is capable of drilling a hole transversely through the corner of the nut at an oblique angle to the face of the nut that the drill bit initially engages.

Abstract: An adjustable holding device comprising a base and a guide removably secured to the base is disclosed. In one embodiment, more than two guide channels are angularly disposed within the guide to guide a drill bit, wherein the more than two guide channels provide multiple two-hole drilling combinations. In another embodiment, a step block is used to elevate the workpiece, thus allowing thinner workpieces to be accurately drilled. In yet another embodiment, a riser block is used to elevate and move the guide laterally backwards to allow thicker workpieces to be accurately drilled. In yet another embodiment, support wings can be used not only to support a large workpiece, but can also be used as a pre-drill guide for depth collar positioning along a drill bit.

Abstract: A fixture for joining two work pieces by pocket hole joints has a base to be mounted to or movable along a table or other member and a drill guide having one or more angled drill guide channels is mounted to the base to be movable toward and away from the table top on which the work pieces are placed. In one embodiment a toggle type clamp on the base carries the drill guide. In another embodiment the base has an upper arm above the work pieces and the drill guide is mounted on the end of a screw that is threaded into the upper arm. The drill guide is moved by the toggle clamp or screw against the work pieces to hold them clamped to the table and a drill bit is advanced in each angled guide channel into the work pieces to form a pocket joint. A screw is driven through a guide channel into the previously drilled pocket hole to join the work pieces.

Abstract: A drill jig for a door comprising a pair of jaws that clamp onto the edge of a door. The clamp is first attached to the edge of the door by a spring load and then further secured by a cam which the workman turns to apply additional clamping force. A center block between the jaws has a guide hole for drilling the lock hole in the edge of the door. The centerline of the center block is perpendicular to the centerline of the knob hole and is positionable to permit location of the knob hole at either one of two locations depending on the style of the lock set. The center block is hingably attached to both jaws of the clamp such that guide hole for drilling the lock hole is always centered between the jaws.

Abstract: A drill gauge for the drilling of blind boreholes of a pre-determined depth in board-shaped parts, preferably into furniture parts, has end faces forming reference edges. An abutment body, which can be applied to the end faces and which is provided with devices for fastening to the board-shaped parts, is provided so as to be able to apply blind boreholes of a pre-determined depth at pre-determined points of board-shaped parts. The abutment body has a borehole flush with the blind borehole to be drilled for the insertion of the drill at whose outer rim an abutment part applied to the shaft of the drill is supported which determines the penetration depth of the drill.

Abstract: A drilling apparatus for panels of wood, plastics, aluminium or the like, comprises conveyor means for conveying a panel to be processed along a horizontal axis x, in an intermittent manner, to locate the panel at a tool bearing rotary turret, and being characterized in that the apparatus further comprises top horizontal guide means, vertically arranged along an axis y; abutment means at the horizontal guide means, and suitable to translate along an axis z to fit their position to the thickness of the panel being processed; holding means applied to vertical uprights and suitable to form a fixed support wall for the panel being processed, bottom guide means adapted to translate along the axis z, independently from the horizontal guide means, and which can be adjusted depending on the thickness of the panel, which can be different at different regions of the panel itself.

Abstract: The present invention provides a guidance apparatus (10) which, in use, is attached to a workbench (14), and which comprises a guidance member (12) which is adapted to receive at least one first carrier member (30) which can move along the length of the guidance member (12) and which can carry at least two different tool holders (60; 80) such that the guidance apparatus (10) can be used to guide at least two different tools to a desired position above a surface of a workpiece (24) upon which work is to be carried out.

Abstract: The woodworking doweling jig has first and second clamp members slidably mounted on guide rods. Drill guide holes are provided in the clamp members or in separately adjustable drill guide members. When the separate drill guide members are provided, they are slidably mounted on the guide rods to maintain alignment. Dowel guide slots are provided in an alignment member which may be part of the upper clamp member. The alignment member has dowel guide slots in it which are in alignment with the drill guide holes in the guide member(s). Adjustment can provide for dowel drilling the same distance from one workpiece surface for aligning the surface. The jig can also be used for mounting the end of one plank against the side of a second plank either at its end or away from the end.

Abstract: A column positioning device for a drill press includes a base having a post and a positioning pin respectively extending from a top of the base. The post is received in a hollow column on which a motor is connected. The column has two positioning passages so that the positioning pin is engaged one of the positioning passages. A frame is connected a side of the column and a pusher is connected to the frame. A rod extends from the pusher and a pressing member is movably mounted to the rod. When rotating the column 180 degrees about the post, the column is conveniently positioned by inserting the pin with the other positioning passage.

Abstract: A drill guide fixture (12) and method are provided for drilling door locks and padlocks of various configurations and sizes. The drill guide fixture (12) has a guide jaw (16), a latch jaw (18) and a guide arm (20), which are secured together with a latch bolt (22) and a guide bolt (24). The guide arm (20) is of an elongated shape having a longitudinally extending slot in a central portion thereof for securing with the guide bolt (24) to one of the guide jaw (16) and the latch jaw (18). The guide jaw (16) and the latch jaw (18) each have a v-shaped notch (72, 74), in each of which scalloped-shaped recesses (76, 78, 80, 82) are formed to aid in clamping the guide and latch jaws (16, 18) to door knobs and round shaped locks. A drill guide hole (54) is formed through the guide arm (20), spaced apart from the longitudinally extending slot (66), for aligning with a cylinder (50) and guiding a drill (56) into the tumbler pins (192) of the cylinder (50).

Abstract: The apparatus includes a drill motor and a cutter drive mechanism coupled with the drill motor for rotating and advancing a rotary cutter along an axial direction, and a clamping mechanism having a pair of opposed clamping members and an actuator that moves the clamping members relatively toward and away from each other for clamping and releasing a workpicce. The actuator is a fluid-operated cylinder such as an air cylinder, and a fluid circuit associated with the cylinder is arranged such that in a normal state of the fluid circuit the cylinder urges the clamping members together to clamp the workpiece. The apparatus includes a control valve that can be operated to cause the fluid circuit to control the cylinder to move the clamping members apart.

Abstract: A device for positionally accurately guiding cup drills, particularly for producing blind-end holes for cup hinges in plate-shaped structural components composed of wood or a substitute wood material, is composed of a U-shaped base body which can be placed on the plate-shaped structural component. The base body has in one leg thereof a tightening screw and in the other leg a carriage with a guide opening for the cup drill, wherein the carriage is displaceable relative to the web and can be clamped against the plate-shaped component.

Abstract: A pipeline and tubular structure renovation apparatus facilitates rapid and economical removal of protrusions into the interior of pipelines and other tubular structures, particularly gas pipelines having excess weld or devices such as nipples, etc. The apparatus consists of a generally cylindrical carriage mounted on wheels or skids which substantially center the apparatus within a pipeline; a clamping device to clamp the carriage in position; and a centrifugal tool head which may perform grinding, cleaning, polishing and other operations. Grinding may be accomplished in both radial and plunge cutting modes. The apparatus is robust and of simple and economical construction. Weld removal speed is considerably faster than that achieved by conventional precision grinding tools.

Abstract: A U-shaped fixture for drilling pocket holes in a workpiece having a base leg, a guide leg and a clamp leg with the base leg joining the guide leg and clamp leg and there is a guide channel in the guide leg at an angle to the guide leg having an entrance on an exterior surface and an exit on the guide leg interior surface which is to oppose a first surface of the workpiece with a second surface of the workpiece generally transverse to the first surface resting on the interior of the base leg. A threaded adjustable clamp on the clamp leg is movable to engage a third surface of the workpiece that is opposite the first surface to hold the workpiece during the time a drill bit is advanced in the angled guide channel to the workpiece first surface.

Abstract: Apparatus for making numerous spaced-apart, radial holes in a tube includes a rotary index table that rotates intermittently through predetermined index angles of rotation and dwells between each rotation. A mandrel affixed to the index table receives the tube telescopically and holds the tube in a fixed position relative to the mandrel. A pair of self-feed drilling units mounted on opposite sides of the mandrel have output shafts that are driven intermittently in reciprocating motion along axes lying in a common plane with the longitudinal axis of the tube, the axis of each output shaft being perpendicular to the longitudinal axis of the tube. Each output shaft carries a multiple-spindle head, and each spindle of the multiple-spindle head receives a drill bit.

Abstract: A drill jig for a spectacle lens forms a closed-end hole in an edged face of the spectacle lens which extends inside the lens, a manufacture jig thereof, a method of drilling a spectacle lens, and a spectacle lens. The drill jig is composed of a jig body and a plurality of support members attached to the jig body. The spectacle lens is inserted and tightly retained in an opening of the jig body and supported by a plurality of the support members. A drill of a drill press, on which the drill jig is set, touches the edged face of the spectacle lens while being guided by a guide portion to thereby form the closed-end hole in the edged face.

Abstract: A clamp-type doweling jig comprising a guide block, to which are attached an alignment fixture at one side, and a clamping feature at the opposite side. In the guide block several bores are aligned and extend through The distance between one end of the guide block and the first of the several holes is equal to the distance between the opposite end of the guide block and the last of the several holes. The above arrangement of the components of this clamp-type doweling jig is adapted, for example, for edge-to-edge, edge-to-end joints. For drilling dowel receiving holes in the face of a wooden workpiece, the clamping fixture is removed from the above arrangement and re-positioned to the alignment fixture. Optionally, the doweling jig is provided with a flip stopper element at each of its ends.

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.

Abstract: A vacuum attachment device for a nutplate drill motor having a footpiece and at least one cutting tool. The vacuum attachment device comprises a body portion and a nozzle portion. The body portion has a central aperture which engages the footpiece and an air chamber which extends through the body portion and intersects the central aperture to form a vacuum path. The nozzle portion is coupled to the body portion and is in fluid connection with the air chamber. The nozzle portion is coupled to a source of vacuum pressure. During the operation of the nutplate drill motor, dust and chips that are generated by the cutting tool are drawn by the source of vacuum pressure into the air chamber and through the nozzle portion.

Abstract: The present invention includes the apparatus and method to create an improved loose tenon joint with multiple arculate mortise surfaces and similarly configured loose tenon member for woodworking applications. A drilling jig is provided to axially guide a drill bit for boring a series of adjoining holes forming a mortise, and a router bit is provided to form a cooperating tenon. A first jig embodiment manipulates a slidable drilling guide bar maintaining longitudinally spaced thru-bores and a plurality of index holes. A second embodiment includes a stationary jig body having an opening that supports at least two drilling guides each having at least one thru-bore. A third embodiment provides a drilling guide bar slidably attached to a stationary support member by at least one indexing pin inserted through an elongated indexing aperture in the stationary support member and into an indexing hole in the guide bar. Preferably, the indexing pin and indexing hole are threaded.

Abstract: A multi-head drilling machine, for use in particular in the simultaneous drilling of a plurality of side frame components for shutters, the drilling machine having a machine frame, a support carriage moveable along the frame, a transverse drilling head bar mounted transversely of the carriage, and moveable to and fro with the carriage, a first pair of drills mounted on the transverse head bar on one side of the carriage and a second pair of drills mounted on the transverse head bar on the opposite side of the carriage and being moveable in unison along either side of the carriage, clamps for clamping work pieces on either side of the carriage, in registration with respective drills, a first drill of each pair being mounted at a first predetermined position on the transverse head bar, and a second one of the drills being mounted at a second predetermined position on the transverse head bar, the first and second drills being offset with respect to one another longitudinally and laterally along the path of movem

Abstract: An adjustable drill jig for forming door hardware mounting holes is described. The drill jig of the present invention includes a first plate adapted for placement against a first side of the door. A second plate is attached to the first plate via a chain linkage. The second plate is adapted for placement against a second opposite side of the door in a position aligned with and parallel to the first plate. Alignment means connected to the first plate and capable of attachment to the second plate ensure the two plates are aligned. The first and second plates each define a plurality of drill guide holes. The drill guide holes of the second plate are aligned with correspondingly sized drill guide holes of the first plate when the first and second plates are aligned. A plurality of bushing plates are also provided. Each bushing plate is capable of attachment to the first plate. Each bushing plate carries a predetermined pattern of drill bushings corresponding to a particular type of door hardware.

Abstract: A preform gate cutter for cutting a hole in a preform gate includes a cutter, a housing forming a cutting chamber, and a preform chuck having a longitudinal preform bore for receiving a preform. The preform chuck is insertable into a housing bore. The preform chuck defines a centerline that is coincident with the preform centerline and is aligned with a perimeter of the cutter to enable the cutter to form a hole in the preform at the preform gate. The housing may have a cutting chip discharge slot. A method for cutting a hole at the preform gate is also provided.

Abstract: In order to facilitate and reduce the time necessary for clamping together and boring a hole through at least two workpieces that are to be joined together, for example by rivets or bolts, a portable clamping and boring apparatus carries out all necessary operating steps once it is manually positioned at the intended location of the bored hole. The clamping and boring apparatus includes a tool body with a clamp device and a boring device mounted thereon. The clamp device includes a clamping yoke with a clamp jaw element at an end thereof, and a clamping cylinder that drives the clamping yoke in an axial direction toward the boring location, from an open starting position into a clamping position. The boring device includes a pneumatic boring machine adapted to receive a boring bit, and a boring feed advance drive connected to the boring machine to drive the boring bit in a feed advance direction opposed to and coaxial with the clamping direction of the clamp jaw element.

Abstract: Disclosed herein is a drill press including a vertical support post, a pivot assembly supported upon the support post, the pivot assembly being pivotable about a vertical axis defined by the post, a table supported on the pivot assembly, a head supported by the post at a location above the table, a rotatable chuck supported by the head, an induction motor driving the chuck; and a detent mechanism disposed between the pivot assembly and the post for identifying when the table is in a central location under the chuck.

Abstract: A face frame dowel apparatus is disclosed that is accurate, simple to use and easily transported to remote locations. Two positioning blocks are secured parallel to each other and sandwiched about a smaller spacer block in such a manner so as to form a U-shaped channel for receiving work pieces to be dowelled. The spacer block contains one or more sets of dies to guide the drill bit during drilling of pilot holes for dowels. The apparatus is secured to the work piece by pressure asserted by a securing means such as a platen-like device perpendicular to and transversing one of the positioning blocks. Another embodiment of the invention includes a reciprocated guide useful in drilling shelf holes. The guide is attached to the positioning block opposite that containing the securing means, and reciprocated by means of allen screws.

Abstract: The apparatus for boring a web of a section. The apparatus is provided with a boring device which is opposed perpendicular to the web of a clamped section and arm plates for supporting the boring device. The apparatus further has a clamping mechanism for clamping the section from each side thereof along the direction substantially parallel to the rotational axis of the boring device.

Abstract: A connecting construction of a branch pipe is disclosed.

Abstract: A pipeline and tubular structure renovation apparatus facilitates rapid and economical removal of protrusions into the interior of pipelines and other tubular structures, particularly gas pipelines having excess weld or devices such as nipples, etc. The apparatus consists of a generally cylindrical carriage mounted on wheels or skids which substantially center the apparatus within a pipeline; a clamping device to clamp the carriage in position; and a centrifugal tool head which may perform grinding, cleaning, polishing and other operations. Grinding may be accomplished in both radial and plunge cutting modes. The apparatus is robust and of simple and economical construction Weld removal speed is considerably faster than that achieved by conventional precision grinding tools.

Abstract: The present invention is directed to a positioning apparatus which is used to position work pieces in a work piece securing mechanism during a computer controlled machining operation. The apparatus includes an arm which is slidably mounted on a graduated shaft so that the position of the arm from a zero reference point can be determined. The apparatus may also include a second graduated shaft slidably mounted in the arm so that the position of a work piece inside a work piece securing mechanism can be determined in relation to a zero reference point. The apparatus of this invention can repeatedly position work pieces within about 0.0005 inch (0.0013 cm) of a desired position, or better.

Abstract: A paddle fitting tool for drilling a hole through a wing spar inserted into a paddle fitting where the paddle fitting has a top fork with a hole and a bottom fork also having a hole approximately aligned with the hole in the top fork. The paddle fitting tool couples a drill to a nut runner using a saddle. The nut runner is operable to clamp the paddle fitting to securably hold the paddle fitting and wing spar stationary during drilling. The drill is operable to hold a drill bit and to drill a hole in the wing spar. The saddle couples the nut runner to the drill such that the hole drilled through the wing spar is approximately concentric with the hole in the top fork and the hole in the bottom fork of the paddle fitting.

Abstract: A printed circuit board working machine includes a spindle which holds a cutting tool and is movable to bring the tool into contact with and away from a printed-circuit board to be worked. A device for pressing down the printed-circuit board comprises a support mechanism associated with the spindle of the working machine for relative movement thereto, a plurality of holding sections movably supported by the mechanism and a driving mechanism for the holding sections. The holding sections are formed with holes of different sizes, respectively. When working operation, after the support mechanism causes the holding sections to move away to a position free from interference with the tool, the driving mechanism moves the holding sections to align one of the through holes, corresponding to a size of the tool to be used, with the tool.

Abstract: A new portable tool guide for providing extra leverage when using a power drill. The inventive device includes a first positioning member slidably mounted to a second positioning member. The second positioning member is slidably mounted to a mounting member which is detachably mountable to a structure. A lever member includes a position portion pivotally coupled to the first positioning member. Pivotally coupled to the positioning portion is the mounting portion designed for mounting a portable power tool thereto. The lever member also includes a handle portion extending from the positioning portion to help maneuver the lever member while in use.

Abstract: A device for resurfacing the valve face of a poppet valve in which the pressure between a cutting surface and the valve face is controllable by the operator during the surfacing operation. A bearing case is rotatably attached to a base which is attached to a pair of gripping blocks. A cutting head is rotatably mounted on the bearing case. The cutting head, the bearing case, the base and the gripping blocks define a passage into which a valve stem is inserted. The gripping blocks are clamped in a vise which in turn clamps the valve stem in the device. When the bearing case is rotated, pressure between the cutting surface and the valve face is increased. When the cutting head is rotated, the valve face is resurfaced.

Abstract: A template for locating of attaching points for drawer pulls. The template is designed to lie on the upper edge of the drawer front and to be adjustable laterally. The members for the drawer pull are also vertically adjustable and provide proper spacing.

Abstract: A tool housing is secured to the head of an electric hand drill so that a tool head, which is secured in the drill chuck, extends into the housing. The housing is secured to one end each of a pair of spaced, parallel guide rods that extend slidably through the upper end of the frame of a working-clamping vise and which are secured at their opposite ends to an end bracket. Compression springs which surround the guide rods between the housing and the vise frame normally resist movement of the housing and the tool head toward the vise. In use, two jaws on the vise frame are moved into clamping engagement with a piece of bar stock to support the tool on the stock with the tool head and cutting bits therein disposed in spaced registry with the end of the work that is to be machined.

Abstract: A drill guide for combination lock mounting and method for fabricating and sing the drill guide is provided. The drill guide is fabricated using several interior mounting plates bonded together to form a sufficient thickness to maintain a true level bore hole. The fabrication guide plate is attached to a secure door using a threaded clamping device extending through a lock spindle hole. Thereafter, the smaller interior holes are drilled completely through the door. Larger exterior holes are then drilled partway through the door from the outside. The door is then ready to accept an exterior combination lock plate having female studs extending into the door.