Abstract: A cutting depth adjustment mechanism for a router having a nut engaged on a guide bolt for adjusting the depth of cut. Cutting depth can be coursely adjusted without rotation of the guide bolt relative to the adjusting nut. This can be accomplished by either disengaging the adjusting nut from the guide bolt or by releasing the adjusting nut from the main body member and sliding the nut along a longitudinally formed slot in the main body member.

Abstract: A power tool motor housing rotates a spindle assembly which moves axially within limits of adjusting nuts. A sensing sleeve maintains an axially fixed position with respect to the drive housing and thus with respect to a depth adjustment for controlling axial movement of the spindle. A foot piece moves along the sleeve as an adjusting nut is rotated on the sleeve to adjust stand off without changing preset depth of cut. A swivel assembly connects the sensing sleeve to the power housing so that the power housing may be rotated or indexed without changing the distance between the sensing sleeve and the depth adjustment.

Abstract: A drill stop apparatus for use with an elongated drill bit is provided. The drill bit has a drilling end that is used to drill a hole of a specified, predetermined depth. The bit also has a plurality of circumferentially extending, axially spaced grooves formed on its outer surface. The drill stop includes a body having a first end and formed to include an axially extending bore that is sized to receive the drill bit to permit the bit to be moved axially within the body. The body also has a cavity that extends substantially perpendicularly through the bore. A plunger is provided that is sized to be received in the cavity for releasably engaging one of the plurality of grooves in the drill bit to lock the drill bit against axial movement within the body member such that a specified length of the drill bit extends beyond the first end of the body member.

Abstract: A quick adjusting quill nut having a body with an axial bore therethrough for receiving a threaded shaft and a transverse bore communicating with the axial bore. A button element is disposed in the axial bore, having a transverse aperture therethrough in general registry with the body axial bore, also adapted to receive the shaft. The aperture is formed of offset bores of differing diameters; the larger bore is of a diameter greater than that of the shaft, and the smaller bore is threaded and of a diameter corresponding to that of the shaft. A spring biasing is provided to maintain the threaded bore in threaded engagement with the shaft. The exterior body of the nut is knurled and is marked with precision graduations.

Abstract: A cartridge trimming apparatus of the mini-lathe variety. A removable stop member is provided between the cutter shaft holder and the cutter shaft handle. The stop member includes a length-adjusting screw that permits adjustment of the overall length of the stop member to accommodate a specific caliber of cartridge case. A lock nut locks the stop member to that specific caliber of cartridge. Different stop members are adjusted and locked to different calibers of cartridges. A mounting clip allows easy, rapid changing of the stop member on the trimmer to allow the user to quickly adapt the trimmer to the various calibers of cartridge cases.

Abstract: A depth-adjusting system for a power tool includes a housing nose portion on which is snapped a two-piece, molded plastic depth-adjusting subassembly. Each member of the subassembly engages a respective area of the nose portion. An adjustment member is rotatably connected to the nose portion, but is releasably restrained from axial movement upon engagement with a split-ring detent on the nose portion. A locator member is threadably connected inside the adjustment member, but is restained from rotating through the interaction of integral keys formed on its interior cylindrical surface with mating longitudinal keyways formed on the nose portion. Thus when the operator rotates the adjustment member, the locator member is forced to move axially forwardly or rearwardly, depending upon the direction of rotation of the adjustment member.

Abstract: An anchor bolt installation tool for installing anchor bolts in preformed holes in concrete, masonry and other materials. The anchor bolt installation tool includes a body piece adapted to interengage with a power impact hammer at one end. The exterior of the body piece is preferably threaded to adjustably receive a guide piece thereon. The body piece is further provided with a bolt receptacle for receiving the threaded end of an anchor bolt. The guide piece is adjusted relative to the body piece so that the guide piece contacts the surface of the concrete or other structure thereby determining the depth to which the anchor bolt is driven. Locking means are preferably provided to fix the relative position between the guide piece and body piece to maintain the depth adjustment at a fixed position. A plurality of inserts can also be provided so that various sizes and types of anchor bolts can be used.

Abstract: A hone stop assembly for use with a honing tool in reconditioning the cylinder bores of an internal combustion engine block. The assembly includes a frame mountable to an engine block, a disk-shaped hone stop, and suitable adjustable connections from the hone stop to the frame to allow the stop to be selectively positioned adjacent to an end of a cylinder bore. A honing tool inserted from the other end of the cylinder bore will contact the hone stop rather than any engine castings adjacent to the end of the cylinder, preventing damage to the honing stones and facilitating accurate reconditioning of the cylinder walls while reducing the tendency of the mechanic to taper the cylinder walls.

Abstract: A method for avoiding rebar, a fixture useful to that end, a particular fastener for use with the method and fixture, and objects to be fastened adapted for rebar avoidance. Where rebar is encountered drilling directly into a concrete surface, a fixture is moved into place over the hole. The fixture has an angled bit guide that guides the drill bit at an angle into the concrete, away from the rebar and to the appropriate depth. The fixture is removed, the object to be secured is replaced, the original and the inclined hole are filled with a hardening securing agent, and a special bent-shaft fastener is introduced into the inclined hole. The bend of the fastener is such that its upper end projects substantially perpendicular to the surface just as would have been the case had no rebar been encountered and a conventional fastener used. A road barrier or the like has several alternate routes for a fastener at its connection location. The routes may be separate holes or an inclined path through a conical hole.

Abstract: An apparatus for punching a hole in a paper web, in particular for the production of liquid packs, has a movable punch which can be pressed against a counter-plate and which has a circular blade at its tip. In accordance with the invention, to permit the desired hole to be punched into the packaging material to the desired depth, using simple means, the punch has a rotationally driven cutter head. Due to the rotary movement of the punch or the blade-forming edge at the tip of the punch, the blade is no longer merely pressed into the paper web, as in previously known punching apparatuses, but in accordance with the invention it is rotated perpendicularly to the pressing movement, giving a cutting effect as when using a knife.

Abstract: A portable electric router conventional in its overall structure is disclosed which includes a locking system comprising a locking pin located in the motor housing and adapted to move in a direction perpendicular to and into locking engagement with the guide bar, and a locking lever pivotally disposed adjacent a grip of the motor housing and operative to axially move the locking pin. The locking lever is adapted to pivot toward the grip to thereby press the locking pin against the guide bar.

Abstract: Disclosed is a workpiece collet mountable in a lathe spindle provided with a master stem on which any one of a set of workpiece stops may be mounted and which stem includes a support readily assembled to the collet repeatedly in a predetermined position. The stops differ in length and/or radius to accommodate workpieces of different terminal configurations. This permits one stop to be substituted for another with assurance that its outer end will be spaced a predetermined distance from the adjacent end of the collet when the master stem is reassembled to the collet. Both ends of the master stem are similarly threaded and finished with stop surfaces permitting the stem to be inverted and used to mount a selected one of the set of stops.

Abstract: An adjustable stop for gripping a rod at selected locations intermittent the length of the rod, including a base member with a pair of longitudinally spaced openings for receiving a rod having a longitudinal axis. A clamp member is provided with an opening located between the base member openings for receiving the same rod. A cam surface is provided on the clamp member for engaging the base member to misalign the clamp member opening between the two base member openings for gripping the rod with the three openings as the clamp member is rotated about the rod's longitudinal axis when the rod extends through the adjustable stop.

Abstract: A nosepiece for a drill motor. The nosepiece is adjustable to allow the nosepiece length to be changed rapidly to compensate for different drill lengths. The nosepiece is threaded to mate with threads on the drill motor housing and can be adjusted longitudinally along the motor center line axis. When the nosepiece is threaded along the housing to a desired location it is locked in place by a locking ring keyed to the nosepiece and fixed in position on the drill motor housing by a hand adjustable set screw.

Abstract: This quill stop device is designed to replace the old-type quill stop devices used on milling and other machines, such as drill presses. Primarily, it consists of a threaded shaft, having a ring with a cut-out opening in its side, so as to be placed quickly and removed on the machine, for setting depth limits, and the ring is made of nylon material, so as to engage the threads of the shaft frictionally at all times.

Abstract: A cutting or drilling apparatus comprises a body member adapted to be fixed to the chuck of a driving means for driving the apparatus into rotational movement. The body member receives the cutting or drilling tool at one front side thereof and is equipped with a coaxially arranged sleeve member, which is slidably and rotatably connected thereto. First, stop means limit sliding and rotational movement and second, locking means block sliding and rotational movement of the sleeve member. A scale on the sleeve member indicates the amount of axial displacement thereof relative to the body member. The apparatus is especially suitable for use with a conical sheet metal drilling tool.

Abstract: A tool or machine in which the relative position of two components is adjustable has setting means operable in a first mode to set the two components approximately to a desired setting and in a second mode to adjust the approximate setting accurately to a required setting. A tool for routing has a base plate and a depth stop comprising a post extending upwardly from the base plate, a first collar movable along the post, a screw thread on the outer surface of the first collar, and a second collar whose bore is screw-threaded screwed over the first collar. The post includes a surface in the form of a toothed rack, the first collar has a bore one portion of whose surface is formed to engage one or more teeth on the rack to lock the first collar in a selected one of a number of predetermined positions along the post and a spring resiliently biases the first collar into engagement with the toothed rack. A scale operating with a fiducial mark is provided.

Abstract: A depth stop for a drilling tool comprises a rod 12 mounted on the tool body for sliding movement in directions parallel to the drilling movement, and a locking lever 15 pivotally mounted about a pivot boss 16 which projects at a substantially right angle to but is offset from the rod. The rod, extends through an aperture in the upper part 18 of the lever which aperture provides a radical clearance for the rod, and a spring 19 biases the lever so as to bring a peripheral edge or opposite peripheral edges of an aperture through the lever into frictional engagement with the rod and the biasing direction is the same as the direction in which the rod tends to move when it comes into abutment with a workpiece. The rod can be released by manually swivelling the lever against the spring force. The rod 12 may have a knurled surface 14 so as to provide substantially a mechanical lock with the co-operating peripheral edge of the lever aperture.

Abstract: A surface of a wedge acts as a stop to limit travel of a spindle on an automatic riveting machine. A drive mechanism moves the wedge back and forth to vary the heighth of the wedge, and the same mechanism simultaneously moves a rod back and forth to act on a transducer, and transmit an electrical signal to give a digital readout of the change in heighth of the wedge.

Abstract: In a drilling machine, a rod-like stop member is mounted on the machine housing for limiting the extent to which a tool held in the machine can drill into a receiving surface. A handle lever, fitted on the housing, releasably locks the stop member in the desired position. The handle lever is pivotally mounted on the housing and has a specially shaped end surface which, in cooperation with a pressure plate, affords the locking engagement with the stop member. The locking engagement is provided by corrugated surfaces on the pressure plate and the stop member. The specially shaped end surface assures that the locked engagement cannot be released until a form-locking engagement between the pressure plate and stop member is overcome.

Abstract: A drill stop having a dimple arranged so that the drill stop can be utilized after the drill has been ground to a shorter length. A cylindrically shaped tubular member is provided with a dimple off center with respect to the longitudinal axis which dimple provides an interference fit in the drill flute along the run out ramp portion of the flute adjacent the shank end of the drill. A further dimple opposite the first dimple may be utilized to reinforce the function of the first dimple.

Abstract: A drill stop which includes a conically shaped nosepiece facing the drilling surface, the nosepiece having a hole coaxially disposed therein providing a slip fit with the drill diameter. The conically shaped nosepiece retains a coaxially disposed steel spring to soften the shock of drill point breakthrough in drilled material. A bushing sleeve at the end of the steel spring opposite the nosepiece retains the steel spring in position while the end of the bushing sleeve opposite the steel spring-retaining end provides a press fit for one end of a spacer tube, the other end of the spacer tube contacting the drill chuck jaws.

Abstract: A drill stop having a dimple arranged so that the drill stop can be utilized after the drill has been ground to a shorter length. A cylindrically shaped tubular member is provided with a dimple off center with respect to the longitudinal axis which dimple provides an interference fit in the drill flute along the run out ramp portion of the flute adjacent the shank end of the drill. A further dimple opposite the first dimple may be utilized to reinforce the function of the first dimple.

Abstract: Device for drilling a hole of predetermined depth having an abutment member non-rotatable in relation to the stationary part of the drilling machine and provided with an abutment surface intended to come into contact with the work piece by the displacement of the drill spindle of said drilling machine towards the work piece, a driving member intended to be connected to the drill spindle said driving member being rotatably and displaceably arranged in relation to the abutment member, a holding member intended to hold the drill and being rotatably mounted relative to the abutment member and displaceably but not rotatably connected to the driving member and provided to be secured against axial displacement in relation to the abutment member and a spring provided between said driving member and said abutment member, the driving member being displaceably in a direction towards the work piece against the action of said spring.

Abstract: A depth stop is mounted on the casing of a drilling machine and includes a clamping lever with a bore through which an elongated rod extends. The rod acts as the stop. Lugs attached to the casing pivotally support the clamping lever. The lever has a clamping surface which engages the surface of the casing in the clamped position. The clamping surface extends circumferentially of the axis of the bore in the lever and is arranged eccentrically relative to the axis.

Abstract: A longitudinal cutting tool is formed with at least one groove and a stop collar is received on the cutting tool. The stop collar has a stop surface, and yieldably resilient means in the form of a threaded screw passing through a slot in the collar, and rubberized buttons inserted into the collar are used to adjust the collar on the cutting tool, and to operatively connect it thereto so as not to damage its groove; the cutting depth of the tool is limited when the stop face engages with the stop surface.