Abstract: Improved apparatus for routing a groove in the surface of a panel of material. The apparatus includes a base, a first elongate horizontally oriented support arm having one end pivotally attached to the base and having another end pivotally attached to one end of a second elongate horizontally oriented support arm. A milling head is mounted on the other end of the second elongate support arm. The pivotally interconnected support arm pair permit the milling head to be laterally displaced in an infinite number of directions. The application of an upward or downward force on the milling head causes resilient flexure of the support arm pair, the flexure permitting the upward or downward displacement of the milling head and of a tool bit rotatably carried in the milling head. The apparatus utilizes the resilient flexure of the horizontally disposed support arm pair to insure that a groove of constant depth is routed in the surface of a panel of material.

Abstract: A pair of support members and a pair of drilling units are mounted for reciprocal movement along a carriage. The support members secure to latch bolts on an elongated surface to be drilled. The drill units move along the carriage in both an X and Y direction to automatically drill holes in the surface. The drill units are then secured to latch bolts and the carriage with support members advanced on rollers located in the support members. The support members are secured to the next latch bolts and the process continued until holes are drilled throughout the length of the surface to be drilled.

Abstract: A fixture and method for manufacturing corner joints wherein two workpieces having mitered edges are joined to form a corner axis. The workpieces are clamped underneath a table having a plurality of parallel finger slots so that the corner axis is perpendicular to the lengthwise axis of the linger joints. A router is guided through the finger slots to cut aligned slots in mitered edges of the workpieces. A spline is received in the slots to lock the workpieces together.

Abstract: A mobile rail contouring machine is arranged for continuously removing such unning surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine comprises a frame, a rail contouring tool mounting linked to the frame, and a drive for adjusting the mounting vertically relative to the running surface of the rail head and for pressing the mounting thereagainst and laterally without play against the rail head side which is not worked. A plurality of guide rollers engage the running surface of the rail head and vertically guide the mounting therealong and an additional guide roller laterally guides the mounting without play along the rail head side. A rail contouring tool head including a tool holder is mounted on the mounting between two of the guide rollers and a rail contouring tool is mounted in the tool holder.

Abstract: A method and apparatus for forming a wall irregularity following countertop are disclosed wherein a countertop as originally manufactured is disposed on the counter base and against the adjoining wall, is then parallelly shifted away from the adjoining wall by a predetermined amount and a router with a spacer following the wall irregularities is moved along the countertop edge with the cutting edge of the counter cutting tool moving along the countertop edge while the spacer follows along the wall.The spacer includes a wall following ring element supported by ball bearings on a disk member attached to the bottom of the router. The disk member has a central opening for receiving the router cutting tool.

Abstract: The following specification sets forth a hinge template guide. The hinge template guide facilitates routing of a door jam or frame by means of a router within a prescribed pattern formed by the template. The template has an opening therein for moving the router over the door frame or jam in a prescribed manner so as to cut an opening within the jam for mounting a hinge. The template guide is supported by means of sharpened pins which are driven into the door jam on a temporary basis and are removed by pivotal lever arms mounted on a bracket that are spring biased and journaled for removal of the pins by a levered removal thereof. The entire template is adjustable with regard to the dimensions that are to be cut by means of a rotatable adjustment means for providing the template at a specified margin on the door jam.

Abstract: This tool is for performing precise machine operations on boiler tube ends, while the tubes are in place in the boiler, and it consists primarily of a hand-held housing, including therein a main gear and pinion gear, designed specifically for strength and long life, the combination serving to rotate a cutting tool holder, having a multiple number of cutting blades. It further includes a self-contained air motor, for driving the cutting tool holder, so as to mill the outside diameters of the boiler tubes, and the tool also includes a collet and rod secured to its center shaft, for locking the tool in a boiler tube.

Abstract: A novel arrangement of pressure foot and drive therefor for providing a frictional clamping arrangement for holding a workpiece being cut by a router so as to prevent movement of the cutout portion of the workpiece in the last increment of the cut. The pinless pressure foot includes a ring-shaped friction member supported by a slide member adjacent one end of a spindle, circumscribing a cutting tool, for engaging the surface of the workpiece. A plurality of flexure members extend around the spindle, first ends of the flexure members being connected to the slide member.

Abstract: A router guide for a router comprising first and second spaced-apart end supports adapted to be removably positioned on spaced-apart supporting surfaces. First and second support members are secured to and extend between the ends of the first and second supports and have an elongated router track slidably mounted thereon and extending therebetween. The router track comprises elongated spaced-apart angle members adapted to receive and support the router base. The angle members are spaced-apart to define an elongated opening extending therebetween adapted to receive the power shaft of the router extending downwardly therethrough. The support members are selectively vertically and horizontally mounted on the end supports. The router track may be selectively moved between the end supports and the router may be selectively moved between the ends of the router track to level a large slab of wood.

Abstract: The invention is a tool for use with a machine tool such as a drill press or the like for cutting circular openings or segments thereof in sheet material. The device includes a pilot drill and an articulated gear train operatively coupling a tool holder and cutting tool to a pilot drill. The articulated gear train is received within a housing which is rotatable about the axis of the pilot drill to enable movement of the cutting tool along an arcuate path about the axis of the pilot drill.

Abstract: In a numerically controlled, gantry-type routing machine, a workpiece pressure-foot assembly is disposed crosswise over an elongate workpiece supporting bed for providing an effective hold-down force for stacked workpiece sheets. The hold-down force is applied to the workpiece stack at locations adjacent a router tool that is held and turned by a motor driven spindle assembly movably mounted on a gantry for orthogonally related lengthwise and crosswise movements with respect to the bed and workpiece. The pressure-foot assembly includes a pair of spaced parallel rails, pivotally supported about axes parallel to the rails, and a plurality of pressure-bearing rollers mounted on axes directly underlying each of the rails for supporting the rails, and accommodating travel of the assembly over the upper surface of the workpiece. The pair of rails and supporting rollers are arranged crosswise of the bed, paralleling the gantry, and underlying the spindle assembly.

Abstract: A depth of cut adjustment mechanism for a portable power planer having an adjustable front shoe whose elevational position controls the depth of cut of the tool. An S-shaped rod is fastened at one end to the adjustable front shoe and is threadedly engaged at its other end to an adjustment nut rotatably mounted in a race formed in the housing. A control knob having disposed thereon a scale referenced to a mark on the housing is secured to the nut so that rotation of the control knob causes a corresponding adjustment in the elevational position of the front shoe. A tension spring is connected between the front shoe and the housing to cancel out inherent tolerance play between the front shoe and the housing.

Abstract: Rail heads are contoured with a mobile machine moving continuously along a track and comprising a frame and a rail contouring tool mounting linked to the frame. The mounting is adjusted vertically relative to the running surface of the rail head and pressed thereagainst, and guided along the rail head by a guide roller laterally guiding the mounting along a selected side of the rail head and two additional guide rollers vertically guiding the mounting along the running surface of the rail head. A rail contouring tool head including a tool holder is mounted on the mounting for displacement relative thereto and a rail contouring tool is replaceably mounted in the tool holder and detachably carries a cutting blade having a cutting edge for planing a selected profile of the rail head by the forward thrust of the machine.

Abstract: Apparatus for guiding a small router head along either straight paths or arcs of circles, for cutting sheet metal printing plates to desired outlines. The operator may guide the router over the same path several times, successively increasing the depth of cut until it is cut through. In the preferred form for cutting along straight lines, a guide rod is supported between two offset heads that attach to the work by suction cups. A short square-section mounting bar rides in a ball bushing along the guide rod. A router head assembly clamps detachably to the bar. For cutting arcs of circles a pair of radius rods is carried adjustably in a rotatable center head that attaches to the workpiece with a suction cup. A second mounting bar connects the free ends of the radius rods; the same router assembly may be detached and clamped to this bar.

Abstract: A machine for machining sheets comprises an arrangement for compressing the sheets to be machined. The arrangement is rotatable about a longitudinal axis comprises at least two rollers for bearing resiliently against the sheets during machining, each of which rollers are rotatable about a transverse axis perpendicular to said longitudinal axis. The arrangement is driven by a motor via a pinion, which motor also drives reduction gearing connected to an angular control means whereby it is possible to control the angular position of the arrangement so that the axis of rotation of the rollers can be orientated in relation to the direction of machining. The control means are themselves controlled by programmable electronic means which operate with reference to the angular position of the machining head of the machine.

Abstract: An assembly for the production of covers, or toppers, for the truck beds of various sizes and makes of pick-up trucks comprising a preformed shell which serves as a base or body portion for the finished cover, and a support member for the preformed shell which provides means for trimming the shell to a predetermined length and enables the shell to be maintained in a fixed position during fabrication of the completed cover. The preformed shell has an initial length greater than that of the finished cover, and, together with the support member, provides a simple, effective and efficient means for making covers for at least eleven different models and makes of pick-up trucks.

Abstract: A portable deglazing tool for removing glazing compound from window frames while simultaneously refinishing all surfaces preparatory to facilitate reglazing and glass replacement if required. The deglazing is accomplished by a fluted cutting bit with a flat lower end driven from an electric motor at a speed of at least 20,000 r.p.m. and the bit operates through aligned apertures in a base and sub-base with indexing on the tool to set the bit to operate at the location and the depth of the ledge of the window frame.

Abstract: A magnet base drill unit having a finger thereon frictionally engaging the surface of the workpiece to which the base of the drill unit is magnetically adherred. The finger is movable in response to lifting or sliding of the energized magnet base from the support base of the workpiece to actuate a switch for de-energizing the drill motor. The unit also includes a pointed punch adjacent the rear end of the magnet base which can be in one form of the invention impacted into the workpiece support surface either by a manually operated lever or automatically whenever the drill spindle is retracted from the work to a position near the upper end of its stroke. A second punch may be located on the drill unit rearwardly of the automatically actuated punch. The second punch is arranged to be embedded into the support surface of the workpiece by a manually applied hammer blow.

Abstract: A roller hold down is designed to restrain parts being cut from a stack of flat sheets. The roller hold down eliminates the need for secondary fastening means to restrain the parts during the cutting operation. The parts are restrained in position on a flat worktable by a pair of cylindrical rollers adjacent the cutter which force the parts against the table. By use of the roller hold down, the restraining force applied through the rollers follows the excursions of the cutter and is applied near the cutter where the force is the most effective.

Abstract: A method and apparatus for smoothing local unevenness from the surface of bar material, such as anode bars, consisting of clamping the bar rigidly against a supporting frame and moving a smoothing device along the bar, said smoothing device maintained in continued contact with the bar by means of rollers pushing against opposed parallel faces of the bar. The rollers allow the smoothing device to move according to the general contour of the bar, so that only local unevenness is removed, and excessive smoothing due to curvature in the overall bar length is eliminated.

Abstract: The invention disclosed includes locator pins for positioning in the cover plate mounting holes of an electrical outlet or switch box to pierce a wall or ceiling covering panel when positioned over the box. A cutter spacer is placed in a predetermined position relative to the locator pins and attached to the panel. A cutter locator ring is positioned over the cutter spacer and a cutter guide is positioned over the locator ring and attached to the panel. The cutter guide locator ring is then removed to allow a cutter to be positioned between the cutter spacer and the cutter guide to make a cut around the inside of the cutter guide. As the cut is being made, the cutter is guided by the inside surface of the cutter guide while the cutter is held by the cutter spacer to limit the depth of cut of the cutter and to prevent the cutter from moving inwardly with the panel after the access opening has been cut in the panel.

Abstract: A window putty removal apparatus is provided which can be conveniently utilized with various window sizes and configurations without the necessity of removing the window sash from its frame. The apparatus includes an elongated flexible guide strip of variable effective length so that it can be applied to the stiles and muntins of different sized windows without removing the windows and a plurality of manual fasteners for securing the guide strip to the window sash adjacent to a strip of putty to be removed. The apparatus also includes a cutting member having a cutter mounted on a shank driven by a rotary power tool and an adapter element rotatably mounted on the shank and cooperable with the guide strip for guiding the cutter through the strip of putty as the power tool is moved longitudinally relative to the guide strip to remove the putty from the window.

Abstract: A press brake milling machine comprising an upper way, a lower way and a carriage. The upper way includes a rail on which the upper carriage support shoes ride, and a rack for meshing with the gears of a carriage drive for advancing the carriage along the length of the upper way. The lower way includes a rail on which the lower carriage support shoes ride and a rack for meshing with the gears of the carriage drive for advancing the carriage along the length of the lower way. The upper way is attached to the upper moving slide member of the press brake and the lower way is attached to the lower bed member of the press brake. Mounted on the carriage is a cutter and a cutter drive. The carriage traverses the length of the press brake. While the carriage moves along the length of the upper moving slide member and the lower bed member, the cutter machines either the tool holding edge of the upper moving slide member or the tool holding edge of the lower bed member to straighten the edges thereof.