Abstract: A punch for removing material from lead frames has a substantially rectangular body with an array of grooves along one side and a step removed on one end from the side opposite the grooves to provide an array of punch teeth extending from the body of the punch. The grooves provide a means of reworking the punch to provide a new array of teeth, by machining away all or part of the teeth and then extending the step in the direction of the groove to provide substantially the original length for the individual teeth. By providing a punch with groove length several times the tooth length, the punch can be reworked several times before being discarded.

Abstract: A shaving apparatus has at least one shaving unit (2) which comprises an external shaving member (3) and an internal shaving member (4) which is rotatable relative to the external shaving member, the external shaving member having an annular wall portion (5) with lamellae (7) which extend in substantially radial directions and between which hair-entry apertures (8) are formed, the internal shaving member comprising cutters (10) which describe a path adjoining the inner side (12) of the annular wall portion (5) of the external shaving member (4). In order to obtain a closer shave without an increased risk of injury to the skin the shaving apparatus is characterized in that the cutters (10) together form one undulating continuous ring-shaped cutter body covering all the hair-entry apertures (8).

Abstract: A fastener applicator, for example for cable clips, uses the kinetic energy of a flywheel rotated by a prime mover, preferably a battery driven electric motor, to drive a striker for firing a fastener into a support. An actuator which strikes the striker may be a fixed projection on the flywheel or be an element on the flywheel movable relative to the flywheel by centrifugal force to project the actuator from an inoperative position to an operative position for striking the striker. The drive from the prime mover to the flywheel is through a clutch or releasable drive coupling which temporarily disconnects the drive when the actuator strikes the striker so that the kinetic energy at the flywheel alone drives the striker and the prime mover is protected from the impact. A micro-processor measures the rotational speed of the flywheel and stops the prime mover when a pre-determined speed for the necessary kinetic energy is achieved.

Abstract: A table and guide assembly is described having a structure for supporting a circular saw or other tool, for moving in two degrees of freedom across a workpiece. The table is tiltable for mounting or dismounting the workpiece and provides means for moving the tool mechanically with accurate linear motion. The table can be mounted onto a truck or other vehicle for use in the field.

Abstract: A positioning device for use with a table saw including a worktable with a transverse beam transversal to the saw, along which a workpiece stop member may slide. The device has an elongated support fixed to the transverse beam of the worktable. A plurality of block members are slidably mounted along the support and are lockable anywhere on this support. An alignment arm is connected to the stop member so as to be movable therewith. This arm has at least one protuberance that is engageable with any preselected block member to lock the stop member in a given position away from the saw. The device allows for easy and infinitely precise positioning of the alignment arm and stop member plate for a workpiece placed on the worktable. It further allows for a rapid "programming" of the positioning of a plurality of workpieces to be sawed.

Abstract: A stripper arrangement for a punch holder which uses an external thread on an end section of the punch holder body to mount either a plastic sleeve press fitted over the external thread or a replaceable steel stripper disc held against the end face of the end section with a steel retainer sleeve threaded onto the external thread. In a first embodiment, a soft tipped set screw secures the steel retainer sleeve. In an alternate embodiment, an O-ring engages the inside of the retainer sleeve to retard unthreading due to vibration, which O-ring also engages the plastic stripper sleeve to augment the friction exerted by the press fit over the external threads.

Abstract: A button removal device including a straight torsion spring separating a pair of gripping members wherein the gripping members have a cooperative set of jaws affixed thereon. A first gripping member has a split pointed jaw which engages a singular jaw located upon a second gripping member. Buttons affixed to card stock by wire or string are removed by slipping the jaws between the string or wire and the button while closing the jaws using finger pressure and pulling away thereby cutting the wire or string. Buttons affixed using staples are likewise easily removed.

Abstract: A circular saw blade is disclosed with narrow radial slots to avoid tangential stress. In order to lower the noise level and the cracking failure risk, a narrow arcuate cutout is provided in the direction of the slot adjacent to at least one end which cutout is not continuous with the slot. The parts of the cutout closest to the slot comprise at least one of the ends of the cutout, and the distance from the slot end to the nearest end of the cutout is less than the blade thickness.

Abstract: A material-working tool control system includes a tool support and a guide linkage for controlling the position and motion of a tool or tool mounting platform. The tool mount extends substantially horizontally and parallel to an underlying work surface and permits motion of the tool platform to and from a vertical axis of rotation to which the mount is connected. Similarly, the guide linkage extends from the tool mount to another vertical axis of rotation in a substantially vertical plane, transverse to the underlying work surface. The tool support bears substantially all the vertical loads of the system, thereby relieving the guide linkage of this weight-bearing function.

Abstract: An adjustable shear block for guiding fasteners of at least two different lengths as they are driven by a fastener driving tool includes a shear block guide surface connected to the shear block which can be manipulated between a first position for driving substantially longer fasteners and a second position for driving substantially shorter fasteners and prevent the shorter fasteners from tipping or tumbling as they are driven.

Abstract: A hand portable riveter includes a handle pivoted to a casing to move a pull shaft through a transmission mechanism, causing it to set a rivet or rivnut via a riveter tip assembly, wherein the transmission mechanism consists of a pressure bar pivoted about a pivot in the middle and having a front fork stopped around a neck portion on the pull shaft and a rear fork, and a roller mounted on the rear fork by a pin; turning the handle in one direction causes the pressure bar to press the pull shaft downwards; turning the handle in the reversed direction causes the roller turned along the casing to give a pressure to the pressure bar in lifting the pull shaft.

Abstract: A miter saw includes a support mechanism for supporting a miter saw unit relative to a base in such a manner that the miter saw unit is both vertically and laterally pivotable. A position determining mechanism serves to selectively determine the position of the saw unit at any of positions including a vertical position where a saw blade is positioned substantially vertically relative to the base, and leftward and rightward pivoted positions where the saw blade is inclined laterally leftwardly and laterally rightwardly from the vertical position by a predetermined angle, respectively. The position determining mechanism includes movable side stopper members and fixed side stopper members on which the movable side stopper members abut, respectively. The movable side stopper members are mounted on a movable member which pivots laterally with the miter saw unit. The fixed side stopper members are mounted on a fixed member which is non-laterally pivotally movably mounted on the base.

Abstract: A cutting attachment for use with a vegetation cutting device. The cutting attachment has a body with a generally planar coupling portion and a central axis of rotation. In one embodiment, the body further includes a conical central wall portion extending radially outwardly and in a first direction from the coupling portion and the axis and a circular outer wall portion adjoining the central wall portion and extending generally radially outwardly therefrom. The central wall portion defines a conically-shaped self-cleaning inner cavity disposed symmetrically about the axis. The outer wall portion has a generally smooth outer surface which serves as a skid plate. An outer self-cleaning cavity is formed by an outer surface of the central wall portion and an inner surface of the outer wall portion. A coupling assembly, which can include an adapter having first and second clamping elements, is carried by the coupling portion for coupling the body to the cutting device to cause rotation about the axis.

Abstract: A power hoe attachment for attachment to a power grass trimmer or the like includes a blade member of a continuous length having a first end attached to a disc shaped member and a second end attached to the disc shaped member. The disc shaped member contains a means for securing the same to a power grass trimmer. When affixed to the power grass trimmer, the power grass trimmer will be converted into a power hoe and the blade member used while rotating to turn soil.

Abstract: A saw guide for hand-held circular saws that aids the saw user in making straight cross and angled cuts. The guide utilizes a slotted saw track upon which the circular saw rests the base of the saw aligning flush against side walls of the track. The saw track is initially elevated above the workpiece by a spring loaded track support member and is brought in contact with the workpiece under a nominal downward force supplied by the saw user. Once the track is in contact with the workpiece, the saw is pushed along the track, its blade cutting through the underlying workpiece through a slot in the track, the track returning to its elevated position after the cut is completed. The track support member also employs a rotational coupling device with which the saw track may be locked in various angular positions relative to the workpiece for use when making angled cuts.

Abstract: A desk-top miter saw with a bevel function is improved through the use of a belt drive transmission between the saw shaft and the motor drive shaft. This allows the unit to be more compact while simultaneously offering a greater bevel tilt range of the saw. A centering detent mechanism is used to correctly locate the turntable for zero-angle (non bevel) cutting.

Abstract: The invention is a readily adjustable work station. The invention includes a manual or machine driven linkage for adjusting the vertical position of a work station top surface in a level manner. This linkage includes rack and gear sets associated with movable supporting columns that support the work station top surface and a rotational transfer means that ensures that rotational energy from a driving means is evenly imparted to the rack and gear sets. Alternatively, the mechanical linkage may comprise ball plunger screws rather than rack and gear sets.The invention also includes an apparatus for manually adjusting the angular orientation of the work station top surface, and an apparatus for adjusting the clearance between the stationary support structure and the movable support structure.

Abstract: A blade for cutting insulation from an insulated electrical conductor. The blade includes first and second opposed surfaces interconnected by an end. The end has an opening extending at a compound angle toward the interior of the blade. The opening is defined by a first pair of cutting edges converging at an angle less than 90.degree. toward the interior of the blade member and a second pair of cutting edges intersecting the first pair of cutting edges and converging toward the interior of the blade at a second non-parallel angle greater than the first angle. The blade is capable of maximizing the portion of the insulation that is cut from various size insulated conductors.

Abstract: An automatic storage and stacking device for sheets of laminar material, such as corrugated cardboard or the like, comprises a transportation unit which removes the sheets of laminar material from a cutting group, overlaps them and conveys them towards a storage surface. The transportation unit comprises a plurality of conveyors in series which can be operated at varying speeds so as to allow separation of a first series of sheets from a successive second series of sheets; with one of said conveyors there is associated a retainer for holding the rear portion of the first sheet of said second series, which retainer comprises a gripper member able to perform an alternating movement along the conveyor with which the gripper member is associated.

Abstract: A cutting machine for sheet material comprising a frame, a stationary knife on the frame and a reciprocating blade cooperating with the stationary knife. A motor on the frame is connected to a gear reducer that is in turn connected to a single push rod through a crank. The push rod is operatively connected to a torque tube that is connected adjacent its ends by link means to the reciprocating blade. Rotation of the crank by the gear reducer will actuate the single push rod and the torque tube operatively connected thereto to reciprocate the reciprocating blade. Spring means for assisting movement of the reciprocating blade are readily adjusted from exterior of the frame of the cutting machine. A rotatable cam follower on the reciprocating blade engages a guide block on the frame for moving the reciprocating blade into proper cooperative engagement with the stationary knife in use.