Abstract: An apparatus 28 for forming at least a portion of the edge 12,14 of airfoil 10 using a tool assembly 68 is disclosed. The tool assembly has a tool 164 with a cutting face 202 having a shape which is like the shape of the finished edge of the airfoil. Various construction details of the apparatus are developed which enable the tool to incrementally remove material while accommodating wave-like variations in the airfoil edge. In one embodiment, the apparatus has a probe assembly 166 attached to the tool which is moveable with respect to a reference surface R.sub.s on the airfoil to guide the tool.

Abstract: A method for cutting an outer cladding or tube of a light waveguide cable to form a gap includes removing material on the opposite lateral portions of the outer cladding to produce flattened areas, forming an annular cut on each end of the flattened area and then splitting the cladding in the flattened areas to enable removal of the portion. To accomplish the production of the flattened areas, a milling unit having guide rollers for the cladding and a pair of milling wheels engaging opposite sides of a cladding of a cable held in the guide rollers is used.

Abstract: A three-in-one router accessory tool is provided. A router stabilizer base, fixed fence and floating fence can be used in various combinations to enhance the capabilities of the router. The router attachment aids the operator in finishing or smoothing wood pieces and can also be used as a biscuit slot cutter, obviating the need to purchase specialized wood working tools.

Abstract: An apparatus for the field milling of a pocket into a railroad stock rail to accommodate the precise nesting abutment of a switch point rail thereto avoids the necessity of milling such pockets under shop conditions and permits the use of Continuous Welded Rail (CWR) through railroad switches. The portable, self-propelled apparatus is adapted to the field milling of pockets into stock rails to accept the selectable placement of a movable switch rail therein and is powered by a portable power supply that may be either auxiliary or integral. The apparatus comprises components which are preferably fluid-powered. The apparatus clamps onto the stock rail and comprises a positionable milling assembly inclined at the angle necessary for milling the desired pocket into the stock rail. The apparatus moves the apparatus along the stock rail at a controlled speed whereby the milling head is fed along the stock rail during the milling operation.

Abstract: A router guide attachment adapted for mounting on the underside of both specialized and standard router base plates accommodates workpieces having both straight and curved edges. In one disclosed embodiment, one or more rigid members includes a slotted aperture, with one or more mounting fasteners being used to adjustably secure the guide in position at a desired lateral depth by inserting each mounting fastener through at least one of the slotted apertures and into one of the base plate holes. One or more of the workpiece-contacting surfaces may further include a wheel rotatably mounted to the rigid member, facilitating rolling engagement against the workpiece. In an alternative embodiment, a plurality of physically separated rigid members are provided, each having a slotted aperture and one or more workpiece-contacting surfaces.

Abstract: A cutting apparatus that performs cutting operations without being held by an operator and that is applicable to various cutting operations in addition to forming a biscuit groove. The cutting apparatus comprises a first base portion having a mount surface on which a work is mounted; a second base portion having an abutment surface with which a work surface to be worked is brought into contact; and a cutter holding portion capable of holding a circular saw blade so as to extend beyond the abutment surface toward the work. The cutter holding portion is turnable, with respect to the second base portion, around an axis perpendicular to the abutment surface.

Abstract: A router guide apparatus comprising a guide carrier member located on the ends of guide rods extending into the base part of the router, the carrier member rotatably mounting a guide follower member of non-circular disc form for rolling engagement with and along an edge of a workpiece, the follower member having its workpiece engaging surface abraded to assist in its frictional non-slip engagement with the edge of the workpiece. The guide apparatus may be provided with spring members to ensure constant engagement of the follower member with the edge of the workpiece.

Abstract: A heat exchanger fin remover includes a first hollow cylindrically shaped member having a closed end and an open end. The closed end is provided with a centrally disposed portion including a centrally disposed threaded aperture adapted to be received by a rotary source of power. The first member open end is provided with an annular cutting ring portion disposed of the distal edge thereof. A second cylindrically-shaped member has a first end and second end adapted to be received within the first hollow cylindrically-shaped member open end. A threaded centrally disposed extending portion is adapted to be received by and cooperate with the first member centrally disposed threaded aperture when the second member is inserted into the first member. The second member other end extends beyond the cutting ring portion disposed on the distal edge of the first member.

Abstract: A tool for simultaneously machining two opposing edges of the end face of a horizontal plate is disclosed. The tool comprises two machining means, rotatable about a vertical axis; the lower machining means is at a fixed vertical position, while the vertical position of the upper machining means varies in conformance with the top surface of the plate, by being part of a vertically sliding subassembly that comprises one or more rollers and means to press the subassembly downward so that the rollers continuously touch the top surface of the plate.

Abstract: An offset router guide assembly for guiding the movement of a router around an outer edge of a structure having corners during rough cutting of a covering material overlying the structure to provide a predetermined overlap beyond the outer edge of the structure includes a base member having an aperture for passage of a router bit, and a guide member attached to the base member by a spacer member extending between the guide member and the base member to provide a gap therebetween. The guide member has a radius greater than the radius of the router bit for offsetting the router bit a predetermined distance from the outer edge of the structure corresponding to such predetermined overlap. The spacer member has a generally triangular cross section and fits entirely within an area between the base plate and guide member bounded by wall portions of the apertures in the base member and spacer member and the intersection of two arcs with the aperture wall portions and with each other.

Abstract: A milling cutter for truing railroad wheels has a milling drive shaft (10) with at least two, preferably three, cutter sections (3, 4, 5). One fixed cutter section (4) is rigidly connected to the shaft (10). At least one, preferably two, cutter sections (3, 5) are axially shiftable along the shaft (10) and receive their torque drive through the fixed cutter section through a releasable coupling such as a claw clutch (9, 30). One axially shiftable section (3, 5) is positioned on each side of the fixed section (4), with a gap (22) therebetween. Preferably, the shiftable sections (3, 5) are interconnected (at 21) so that an axial adjustment of one section is synchronously transmitted to the other section and vice versa.

Abstract: A method for repairing boiler tube walls by cutting out and replacing a worn or damaged section thereof involves the use of a power tool having a rotary milling head specially adapted to remove membrane material from between tube ends which are exposed when the damaged section is removed. The method and apparatus of the invention allows for the rapid and precise removal of membrane material from between the exposed tube ends to facilitate subsequent bevelling and welding operations, while substantially reducing the risk of weakening or damaging the tube wall by avoiding excess removal of material therefrom.

Abstract: A method and apparatus for producing a controlled tapered cut on a curved surface in preparation for repairing a damaged area on the surface. The apparatus includes a cutting tool which is revolved around the damaged area at incrementally smaller radii until the entire damaged area and the periphery thereof has been machined. The cutting tool is maintained in a position such that the surface of the workpiece is machined along a tapered plane which is disposed at a predetermined angle with respect to the tangent to the surface of the workpiece. As the normal to the workpiece surface changes its angular orientation, the position of the cutting tool is correspondingly adjusted to machine the workpiece. The cutting tool is disposed in a channel member extending normal to the surface in such a manner that the angular position thereof can be adjusted.

Abstract: A chamfering device incorporating a power tool for driving a rotary bur or the like provided with an elongated shaft and a cutting head, wherein the shaft is enclosed at a small clearance by a first, mainly tubular member, which, after mounting of the shaft with the said first member fitted thereto in the power tool, is held in position by a second, mainly tubular member, which is fixed to the power tool and is connected to the first member thereby arresting this in position, a third, mainly tubular member being provided over the second member, said third member being displaceable in the axial direction of the second member and lockable in occupied positions, said third member being an adjustable extension of the second member.

Abstract: An improved tool for grinding a ridge in a bore comprises a planar base plate which is positioned over the bore, a handle along one edge of the base plate and a cutter tool projecting from the plate on the other extreme or diameter of the plate. The cutter tool cooperates with a rotary driven tool to provide a cutting action against the peripheral ridge in a cylinder bore, for example.

Abstract: A miter undercutter bit is provided which is functional to make a 45 degree angled miter. The assembly includes a rotatable shaft having a cutter mounted thereon. The cutter comprises a pair of 45 degree angle arms which upon rotation thereof make the miter. A bearing having a diameter substantially equal to that of the base of the cutter is utilized.

Abstract: The machine comprises on a body bearing and rolling devices (5), a guiding arrangement constituted by adjustable claws (11) adapted to bear against the edge of the work piece (30) to be chamfered, and a router (20) including a milling cutter (24) mounted on the body to be pivotable in a plane perpendicular to the edge, the milling cutter (24) being located between the claws (11).

Abstract: A portable chamfering tool comprises a casing; a rotating shaft projected from one end of the casing; a ring-shaped connector arranged on the outer circumference of the rotating shaft, and having a ring-shaped groove formed on the outer circumference of the ring-shaped connector; a ring-shaped boss attached to the outer circumference of the ring-shaped connector so as to freely move in the axial direction of the connector; a guide plate attached to the ring-shaped boss; adjusting and fixing rings screwed onto the ring-shaped boss, the adjusting ring having a recess formed at the upper portion thereof; a connecting plate movably arranged in the recess of the adjusting ring and urged to the center of the ring-shaped connector to engage the ring-shaped groove on the outer circumference of the ring-shaped connector; a cutter chip fixed to the rotating shaft, which passes through the ring-shaped boss, with a part of it projected downward from the underside of the guide plate, and a guide attached to the rotating s

Abstract: A router guide apparatus having a support arm attached to the router, a base plate supported on the support arm, an opening in the base plate through which a router bit may pass, and, a router guide member on the base plate, the router guide member having a semi-cylindrical surface area having a radius substantially equal to the radius of the router bit.

Abstract: A chamfering machine comprises a rotary shaft, a guide base provided perpendicularly to the rotary shaft, an adjusting unit for adjusting the relative positional relationship between the rotary shaft and the guide base, a cutter detachably mounted on the rotary shaft for chamfering the edge of a workpiece, a guide detachably mounted on the rotary shaft for contacting a lateral face of the workpiece and a fixing member for fixing the guide to the rotary shaft after the vertical positional relationship has been adjusted between the guide and the cutter.

Abstract: A tool for the advancement of a router cutter along a door or window jamb, with its cutting axis at a compound angle, so as to eliptically undercut a channel complementary to a dart-shaped seal anchor having a rib projecting through a slot formed by a reduced stem of the cutter, the seal characterized by a depressible bulb shaped body lying contiguous to both the jamb and a slamming stop.

Abstract: A chamfering machine comprising a planar guide base, a rotary shaft extending at right angles to the guide base, upward and downward cutting edges attached to the rotary shaft and used to chamfer respective bottom and top edges of a workpiece, a first rotation guide located above the upward cutting edge so as to be in contact with a lateral face of the workpiece, a second rotation guide located below the downward cutting edge so as to be in contact with the lateral face of the workpiece, and an adjusting mechanism for retaining the cutting edges and the guide base for relative movement in the axial direction of the rotary shaft and adjusting the relative positions of the cutting edges and the guide base.

Abstract: A sawing device attachable to regular electric drill, having a main body with a revolving shaft set thereinside to protrude therebeyond to drive an inner spiral gear set to rotate so as to further let an eccentric strut on a longitudinal gear push and pull a front link rod to make reciprocating motion to further carry the front prolonged saw blade to saw; said main body comprising a drill sleeve for fixation with regular electric drill tool to let the revolving shaft be fixedly connected with the revolving body of an electric drill so as to make use of the revolving power of the said electric drill to drive the sawing device to saw.

Abstract: A chamfering device comprising a housing in which a motor is housed, a guide base arranged at one end of this housing, a rotating shaft which is driven by the motor and whose front end is projected outside from the guide base, a chamfering blade fixed to the front end portion of the rotating shaft, partly projecting outside from the guide base, and a guide located further on the front side of the rotating shaft than the chamfering blade and attached to the front end of the rotating shaft. The guide can be contacted with the face adjacent to the chamfering portion of a workpiece.

Abstract: A device for the milling of grooves consists of a stop angle and a slide, which latter is displaceable on guides provided on the stop angle, the slide carrying a drive motor for a milling disk, a slot-shaped passage opening in the end plate being associated with the milling disk. In order to reduce the initial investment costs, the device is designed as an accessory unit for a commercial angle grinder, the slide exhibiting two multisectional fastening angles between which the angle grinder can be clamped in place, and a coupling shaft being supported in the slide; a threaded output stub of the angle grinder can be threaded into the upper end of the coupling shaft, which has a threaded bore, and the milling disk can be threaded to the lower end of the coupling shaft.

Abstract: A flash removing method whereby flash is cut off by a reamer which is freely movable while being in contact with polymeric molded products within a predetermined range of pressing force. The reamer is provided with blades having normal clearance angles of substantially zero degree and the flanks of the blades follow the flash-forming region. The reamer is controlled in radial position according to the shape of the polymeric molded product, so that the reamer always receives a constant radial load from the product to leave even traces after the flash removal. A solidified gate is cut off before the flash removal. A flash removing apparatus for performing the method.

Abstract: A self-supporting hand-held grinding device (10) for beveling the edges of a part having a compound contoured surface includes a frame (12) having a flat triangular-shaped base (22) and an integrally formed arm (24) with a cylindrical flange (26) projecting from the arm (24) to which is attached a grinding tool (14). The longitudinal axis of the cylindrical flange (26) is oriented such that the longitudinal axis X of the grinding tool (14) tilts away from the longitudinal axis (W) of the base (22) by an angle, .alpha., lying in the range of 5.degree. to 8.degree., and preferably at 7.5.degree.. Three legs (46) are attached to the base (22) by a retaining nut (58) and are adjusted in height by backing off a knurled locking nut (60) and turning the shaft by means of an adjusting nut (68). A foot (48) having a socket (52) is pivotally mounted to the ball-shaped supporting end (50) of each leg (46 ).

Abstract: The present invention relates to a cutting device suitable for cutting one part of a laminate to conform its shape to the other part of the laminate. The device comprises a vertical motion means mounted on a horizontal motion means, the vertical motion means having a rotating cutting blade mounted thereon. The cutting device is able to conform a veneer to the exact shape of a subsurface base within 0.001 inch.

Abstract: A woodworking router accessory tool having a rectangular router base member having rollers in the bottomfor easy rolling against a straight edge for linear cutting. An adjustable length radius bar attaches to the base member for circle cutting, and longitunal straight frame member that closely retains the base member and its attached router for safe, long, precision routing. In addition, a short rectangular frame to which the base member may be attached permits both very short radius cuts and a guide fence.

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 drilling and milling guide for interchangeably accommodating for example, powered hand drills or milling machines, with the guide including a machine support adapted to be displaced along two parallel guide columns against a readjusting spring force, and a bottom plate at which the guide columns are pivotally mounted, with the bottom plate being provided with a central opening for accommodating different machine types and in order to enable the installation of adjustable guide stops, ends of the readjusting spring, not attached to the machine support, are fixed at a separate abutment which is adapted to be displaced and fixed along the guide columns. The bottom plate is provided with two parallel channels disposed in a plane parallel to the bottom plate for accommodating two guide rods which support a guide stop. Each of the channels pass near the guide columns and vertically through a plane extending through both guide columns.

Abstract: The tool includes a handle containing a motor whose shaft extends from a tool head and carries a ball-shaped or a barrel-shaped cutter. A cantilever arm extends from the tool head and has a guide element cantilevered from its free end. The guide element is pivoted about one or two axes, extending at right angles to the axis of cutter rotation.

Abstract: A tool for grinding irregular surfaces such as transition welds includes a base adapted to rest on the surface of the workpiece, a track on the base and a carriage which moves longitudinally of the weld with one end on the track and the other end of the carriage having a roll which contacts the top of the workpiece. A trolley is supported on the carriage for transverse movement and carries a grinding wheel and its motor. Guide tracks on the carriage cause the grindling wheel to move in a non-linear path. The base is placed in position and the grinding wheel is reciprocated transversely as the carriage reciprocates longitudinally. If the weld is longer than the carriage movement, the base is moved after the grinding is finished at the first position to a second position adjacent thereto and the operation is repeated until the weld is completely ground as desired.

Abstract: The machine for trimming pieces of wood, such as a surfacing, planing or other machine, comprises a rotary tool having a tool holder provided with projecting axially extending blades and adapted to machine at least one surface of the piece of wood. This tool has, on the input side and output side thereof, two driving rollers for driving the pieces of wood. These rolls have axes parallel to the axis of the tool and are connected to rotate with the latter by a speed reducing mechanism. The mechanism employs a sun and planet train one of the sun wheels of which is mounted directly on the shaft of one of the driving rollers. Another sun wheel is freely rotatable on this shaft and is prevented from rotating relative to the frame of the machine.

Abstract: Apparatus, especially portable apparatus, for forming shaped edge profiles on the edges of sheet material wherein the sheet material is characterized by thickness non-uniformities; yet, wherein the root face thickness--i.e., that portion of the shaped sheet edge thickness from which no material is removed--of the shaped edge formed is maintained constant irrespective of thickness non-uniformities inherently present in such sheets. More specifically, apparatus which particularly, but not exclusively, advantageous in preparing the edges of sheet material (such, for example, as sheet aluminum) for subsequent welding operations by routing or the like, where it is critical that the root face thickness of the shaped edge remain of constant thickness irrespective of thickness variations inherently present in the sheet material itself.

Abstract: A device for full depth hand routing characterized by a two piece base including a foot block and an attachment block, the attachment block being held to the foot block by a connector bolt and two adjusting screws to enable attaining parallel planes for a tool in the base of the block; a cantilevered holder extending from the attachment block; a tool on a shaft that is powered by a motor within a housing that has a substantially cylindrical barrel and a protruding threaded male part threaded engaging a threaded aperture on the cantilevered holder; an indicator scale around the base of the barrel and above the threads; and indicator carried by the attachment block and extending upwardly adjacent the depth scale such that accurate depth positions can be attained for routing to a desired depth. In a preferred embodiment, the cantilevered holder comprises a ring that allows 270.degree. visibility about the routing tool. Also in the preferred embodiment, the foot block has an upstanding flange at 90.degree.

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 cutting guide for cutting plastic laminate material is used in conjunction with a conventional router. The cutting guide includes an elongate, flat base plate having an opening in one end portion thereof for receiving the bit of the router which has been mounted thereabove. An elongate guide fence is disposed transversely below the base plate and is mounted on a sliding carriage for movement toward and away the router cutting tool. An upwardly biased support roller is axled on the horizontal leg of an L-shaped axle to make rolling contact with a strip being cut from a larger sheet of material along a line parallel to the length of the fence. An auxiliary roller is axled to the trailing end portion of the fence to support the edge portion of the strip of material opposite the cutting tool.

Abstract: An arrangement for producing grooves in walls, ceilings and the like with the use of a hand-held processing machine, has a rotatable material-removing tool driven in rotation by the machine, and a housing surrounding the tool. The housing has a guiding piece through which the tool extends. The guiding piece has a guiding surface which is adapted to lie on the surface of the wall, ceiling and the like, and is inclined at an acute angle relative to the axis of the tool. The guiding piece is detachably mounted on the processing machine.

Abstract: A motor-driven ball cutter is disposed in a guide member held in relation to the rotational drive axis and being suspended for pivoting on an axis traversing the rotational axis in the ball's center due to mounting of the suspension coaxially to the rotational axis by means of a handle. The guide member is provided, for example, with an arcuate, outwardly tapered slot against which bears the work. The cutting depth is adjustable.

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: Apparatus is provided for carrying, positioning and operating relatively unwieldy machine tools, such as heavy multiple-head drilling assemblies, upon massive flanged work-pieces, such as structural members for bridges, in order to more efficiently perform required operations upon the work-pieces, such as the pre-drilling of girders and their associated splice plates in a fabrication yard prior to field erection of the structure into which they will be assembled.

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: A hand operated power tool is used for trimming and edge finishing a workpiece such as a counter top or desk top. The tool comprises a housing having two guide surfaces arranged substantially perpendicular to each other and an electric motor-driven cutter mounted in a recess in one of the guide surfaces, arranged parallel to one guide surface and perpendicular to the other guide surface. The two guide surfaces support the tool on a flat surface of the workpiece and maintain the cutter in position with respect to the material to be cut. In addition, a cutter guide bearing at the end of the cutter further guides and limits the movement of the cutter. The tool may be operated in two different positions so that edges adjacent to blind corners and curved surfaces may be trimmed. Different shaped cutter bits can be used for trimming square, beveled, or radiused edges with no adjustments to the tool.

Abstract: An attachment is provided for a tool with a rotary cutting element. The attachment enables an operator of the tool to determine when sufficient stock is removed from the wall of a slot to obtain the proper slot width and includes a gauging element extending longitudinally and generally parallel to the rotary cutting element, said gauging element being of width slightly less than the desired slot width. A cutting edge portion of the rotary cutting element protrudes from the plane of one of the elongated surfaces of the gauging element so that stock may be removed from a slot wall while the gauging element trails behind the cutting edge in the slot. In preferred form, a guide is located 180 degrees from the gauging element so as to precede the rotary cutting element into the slot and control the depth of cut thereof along the slot wall.