Abstract: A band-sawing check valve device is provided. The band-sawing check valve device includes a main wheel, a transmission assembly, a driving assembly and a check valve assembly. The transmission assembly is linked to a transmission shaft. The transmission shaft is disposed to the transmission assembly, the driving assembly drives the transmission shaft to drive the main wheel, and the check valve assembly is used to limit the rotation of the main wheel in a single direction.

Abstract: An enhancement for use with automatically cycled saw systems that provides an operator access to two-hand anti-tie down buttons and other machine control functions while manually crowding the material to be cut against the saw's fence. The enhancement includes anti-tie down buttons to prevent a cutting cycle unless both buttons are depressed within preset time limit of each other.

Abstract: A clamping and cutting apparatus for a conveyor belt is provided. The apparatus includes upper and lower elongate members between which the belt is to be clamped. A clamping mechanism has a screw drive mechanism mounted to the upper member and an end linkage assembly which are operable to generate a more rapid clamping operation of the elongate members on the belt. The upper elongate member can be releasably latched to the lower elongate member for quick connection and removal therefrom. A cutting blade of the apparatus is preferably provided with upper and lower guides to increase the rigidity thereof for increasing cutting accuracy and allowing thicker belts to be cut therewith without increasing blade thickness.

Abstract: An apparatus for modifying window blind assemblies. The apparatus may have a base plate and a wall, the base plate and wall supporting the blind assembly. The apparatus may have a horizontal clamp assembly attached to the base plate that may secure a side of the blind assembly. The wall may support a slide clamp assembly. The slide clamp assembly may be slidably connected along the wall and pivotally adjusted to secure an adjacent side of the blind assembly. A cutting assembly may be attached to the base plate. The cutting assembly may have a saw guide for securing a saw that may be positioned to modify the blind assembly along a plane. The apparatus provides measuring and cutting the adjacently bundled blinds together along a plane, until the bundled blind assembly is again secured within the apparatus for modifying another end of the bundled blinds, for symmetry purposes.

Abstract: A clamping and cutting apparatus for a conveyor belt is provided. The apparatus includes upper and lower elongate members between which the belt is to be clamped. A clamping mechanism has a screw drive mechanism mounted to the upper member and an end linkage assembly which are operable to generate a more rapid clamping operation of the elongate members on the belt. The upper elongate member can be releasably latched to the lower elongate member for quick connection and removal therefrom. A cutting blade of the apparatus is preferably provided with upper and lower guides to increase the rigidity thereof for increasing cutting accuracy and allowing thicker belts to be cut therewith without increasing blade thickness.

Abstract: The invention is a dental model cutter for trimming the base of a dental model in a precise predetermined manner where the dental model is precisely secured and positioned under a cutting guide and can be hand sawed or cut, thus eliminating the need of a conventional dental model grinder.

Abstract: A pressing mechanism for a paper cutting device includes a frame with a U-shaped bracket connected thereto and a threaded rod extends through two extensions of the bracket. A wheel is connected to a top end of the threaded rod. A sleeve is threadedly mounted to the threaded rod and includes two rack portions. Two link assemblies each have a first plate and a second plate which is connected to one of two ends of the first plate. The other end of each of the first plates has teeth which are engaged with the rack portions of the sleeve. The two first plates are pivotably connected to the frame and the two second plates are pivotably connected to a pressing member. The sleeve is movable along the threaded rod by rotating the threaded rod and the two first plates are driven to pivot so as to move the pressing member up and down.

Abstract: A saw table for fixing frame pieces of frames of paintings, pictures or photos, includes a base table having two arms crossed and substantially perpendicular to each other and a gap at where the arms are crossed, wherein the arms are respectively provided with a fastening device to secure a frame piece to be cut, and a guiding assembly having a guiding shaft provided on one of the arms at where the arms are crossed and is adjacent to the gap and an attracting device movably mounted on the guiding shaft. The attracting device has a magnet thereon for attracting a saw blade attached on the attracting device with a blade cutting portion of the saw blade received in the gap and the guiding shaft and the attracting device are respectively provided with a positioning device to fixedly secure the attracting device on the guiding shaft.

Abstract: A clamping miter box including a base having a surface, a plurality of holes positioned in a pattern in the surface of the base, and a cam peg including a shaft sized to be rotatably receivable by a selected one of the plurality of holes and a cam portion coupled to the shaft for rotation therewith. The cam portion for engaging the item to be clamped.

Abstract: This invention is an improved structure for saw clip. On the working desk, there is a lead trough. On the pivot of this working desk, there is a block section for items to wait to be sawed. A top pusher block, when moved onwards, can be used to fix the items so that the sawing process can go smoothly. Among the parts of this invention, there is a sliding trough on top of the block and the sliding trough and the lead trough go across each other. Moreover, a lead screw goes through both the sliding trough and lead trough. The lead screw can be adjusted to be at any position in the lead trough to change how the block is placed. Then, the block can be screwed tightly so that it will not turn upon receiving the pushing force from clipping.

Abstract: A table saw including a base, a main table supported by the base, first and second rails attached to the table, a sliding table fixedly attached to the rails and sliding along the longitudinal axis of the rails and a cross-cut table slidably movable in a direction perpendicular to the longitudinal axis of the rails. The cross-cut table may be adjusted to ensure movement parallel to a blade protruding from the main table. An improved miter gauge assembly is also disclosed. An improved fence assembly is further disclosed herein. In addition, a table saw having an improved panel and leg construction is disclosed herein.

Abstract: A Venetian blind cutting machine is provided for cutting blinds produced in several sizes into a required size. Venetian blinds produced in several proper sizes are selected by consumers and are then cut into various sizes to meet their exact needs by the cutting machine. This blind cutting machine is made up of a retaining mechanism, a cutting mechanism, a corner trimming and a calibrating mechanism. The retaining mechanism is responsible for clamping blinds in place and the cutting mechanism is used to cut a blind into a proper size. The corner trimming and calibrating mechanism has a calibration ruler which permits slats to be placed in abutment for precise measurement and calibration. A mold set disposed on the corner trimming and calibrating mechanism is provided with a multi-faced mold assembly which has various types of knives suit for slats of different specification for trimming the ends of slats into proper round corners.

Abstract: A machine tool includes a table for placing a workpiece thereon and includes a fixing device for fixing the workpiece in position relative to the table. The fixing device may be operable in a first mode for fixing and releasing the workpiece relative to the table and in a second mode for shifting the workpiece relative to the table.

Abstract: A table saw including a base, a main table supported by the base, first and second rails attached to the table, a sliding table fixedly attached to the rails and sliding along the longitudinal axis of the rails and a cross-cut table slidably movable in a direction perpendicular to the longitudinal axis of the rails. The cross-cut table may be adjusted to ensure movement parallel to a blade protruding from the main table. An improved miter gauge assembly is also disclosed. An improved fence assembly is further disclosed herein. In addition, a table saw having an improved panel and leg construction is disclosed herein.

Abstract: The food holder has two vertical plates, mounted on a base vertically and parallel to each other. The two plates create a gap between the plates where food is held. Knife guides with vertically extending guide slits are provided at both ends of the gap. The two vertical plates are connected to the base in a manner allowing their translational motion in directions which can change the gap size. Additionally, a centering mechanism insures the distance moved by each plate is equal.

Abstract: A cutting mechanism for accurately cutting a notch in a piece of edging, to permit sharp bending of the piece of edging for a picture or plaque, is disclosed. The cutting mechanism comprises a jig secured to a base member, the jig being dimensioned to receive the piece of edging clamped thereto. A cutting blade is mounted on the base member for reciprocating movement between a first retracted position whereat the cutting blade is remote from the jig and a second fully extended position whereat the cutting edge has passed through the jig. The cutting blade has an inverted "V"-shaped cutting edge comprising two blade portions joined one to the other at a central vertex.

Abstract: A vise assembly and a method of manufacture therefor includes a threaded feed screw rod having a clamp member at one end thereof and a manually graspable handle at the other end thereof. The feed screw rod is rotatably mounted in a vise mount. The vise mount includes a frame mount that includes a pair of laterally extending wing portions and a concave portion between the wing portions in which the feed screw rod is received. On the frame mount are included a pair of stepped frame members, each including a first portion fixed to a respective wing portion of the frame mount, and a second portion bent substantially orthogonal to the first portion thereof to define side portions on either side of the concave portion of the frame mount, the feed screw rod being further disposed therebetween. A vise lock handle is pivotably mounted between the second portions of the pair of stepped frame portions.

Abstract: An improved elongated holddown bar for use in conjunction with a power corner notcher having a table which defines a horizontal working surface. The notcher includes a clamp means adjustably positionable on, and connectable to, the table atop the work surface which immobilizes the holddown bar in a selected position to establish either of two upright side edges of the holddown bar against which a piece of sheet metal may be positioned. One of these edges includes a recess formed entirely therealong which defines a recessed upright abutting surface and a horizontal holddown surface spaced above the working surface a height substantially equal to the thickness of the sheet metal whereby the notching operation into the edge of the sheet metal cannot substantially buckle or distort the edge of the sheet metal.

Abstract: A board straight-lining tool to be used in conjunction with a conventional circular blade table saw for the purpose of cutting a new straight and square edge longitudinal through a board. A board requiring this new edge is placed on a base of the board straight-liner, wherein a series of toggle clamps with pressure collapsing tips are toggled closed. This secures the straight-liner to the board. A separate detachable guard support is secured to the table saw with the circular blade protruding vertically through the guard support or the blade may protrude to the fence side of the guard support. The guard support keeps the board on the same plane as the table saw table and also adds a safety feature to aid in preventing the straight-liner from coming into contact with the circular blade during the cutting operation. The board is guided past the circular saw blade while keeping the straight-liner against the table saw fence.

Abstract: A miter saw clamp accessory to facilitate vertical and/or horizontal clamping of a workpiece against a supporting worktable and fence is disclosed. The miter saw clamp accessory includes a pair of extension rods extending laterally outwardly from one end of a frame with a clamp support mounted on such extension rods. A clamp shaft is adapted to be mounted in a top opening of the clamp support for vertical clamping or in a side opening of the clamp support for horizontal clamping of the workpiece. A clamp assembly is mounted on the clamp shaft and includes a connecting arm for adjustable mounting of a clamping arm having a workpiece clamp at one end that is arranged for confronting opposed positioning relative to the frame for vertical clamping or to the fence for horizontal clamping of the workpiece. A miter saw crown molding jig accessory is also disclosed for mounting on a miter saw frame.

Abstract: A key punch apparatus is provided for selectively removing notches of material from a key blank. The apparatus includes a punch and die subassembly which is rotatable between first and second positions. A carrier holds the key blank in an operative relation with the subassembly. An actuating handle is operatively coupled to the punch to cause an axial cutting stroke. Cutting a notch with the subassembly in the first position results in a notch having a first shape, while cutting a notch with the subassembly in the second position results in a notch having a second shape.

Abstract: A punch includes a base portion on which at least two punching units are disposed. The punching units are connected by a shaft extending therethrough. Each one of the punching units has an actuating device securely disposed to the shaft. The actuating device has at least one toothed element, a box portion disposed to each one of the punching unites and a block disposed in the box portion. The block provides a passage defined longitudinally therethrough and a punching rod disposed to an underside thereof and received in the passage. The block has at least on rack disposed thereto so as to engage to the toothed element such that when the shaft connected to a handle is pivoted, the block is moved downwardly, and each one of the punching devices slidably moves along the shaft so as to adjust a distance between two punching units.

Abstract: A power-controlled sawing machine provided with a clamping and angle-adjusting mechanism and a safety alignment mechanism. The clamping and angle-adjusting mechanism consists of first and second clamping plates to clamp an object to be cut therebetween. The second clamping plate further effects the adjustment of the angular position of the second clamping plate relative to the sawing direction. The safety alignment mechanism includes a stop plate which can be moved and turned to align with the second clamping plate so as to prevent a cut piece from bouncing out and injuring people.

Abstract: An apparatus for trimming a deformable substrate such as a squeegee blade, and which includes a main frame; a track borne by the main frame; a cutter assembly borne by and movable along the track; a support assembly borne by the main frame for supporting the deformable substrate, the support assembly being movable along a path of travel from a first position to a second portion, and wherein when disposed in the second position, the support assembly supports the deformable substrate in a trimming position relative to the cutter assembly; and a holding assembly borne by the main frame and operable to firmly secure, without substantial deformation, the deformable substrate in the trimming position.

Abstract: An arrangement to position molding, and particularly crown molding, upon a miter table is arranged to include at least one positioning assembly having an adjustment rod threadedly directed parallel to and below the miter saw table, with an abutment plate mounted to a positioning rod that is arranged above and parallel to the adjuster rod, with the abutment plate arranged for engaging the molding for orienting the molding in a predetermined orientation relative to a saw blade of the associated miter table.

Abstract: A revolving speed regulating mechanism for a circular sawing machine has a speed regulation rotating handle, a rotary positioning vise and a cooling system. The speed regulation rotating handle is positioned on a housing of the gear box of the circular sawing machine with an actuating rod on its lower end extending into the gear set so as to change gear ratios. The rotary positioning vise is positioned on the base of the machine.

Abstract: An apparatus and method for cutting strip or reel form of TAB tape into individual sites ready for further processing. In addition, a lead plating buss may be removed at the same time. A universal and adjustable apparatus includes preferably two cutter assemblies positioned adjacent a replaceable tape adapter and a clamp foot is actuated prior to cutting, for holding the tape, and is also magnetically attracted toward the movable cutter blade.

Abstract: A mechanism is provided for circumscribing oval paths, wherein a pivotably mounted element is dynamically oriented so as to maintain a functional axis thereof constantly tangent to the circumscribed path. An orienting arm attached to the mounted element is arcuately reciprocated by an element moving unidirectionally in a circle, the direction of circular movement being opposite to that in which the mounted element proceeds.

Abstract: A machine having a cutting head assembly and a clamping system is provided for cutting shapes in planar workpieces. A pair of separately operated blades are convergently disposed to enable the formation of an edge bevel on the workpiece by cutting it from either side, and also to enable facile V-grooving. The clamping system securely and inobtrusively secures the workpiece in cutting position.

Abstract: A machine is provided for cutting oval shapes in planar workpieces, wherein the blade is dynamically oriented so as to maintain its cutting axis constantly tangent to the line of cutting. It utilizes a pivotably mounted cutter head, to which is attached an orienting arm that is arcuately reciprocated by an element moving unidirectionally in a circle, the direction of circular movement being opposite to that in which the cutting head proceeds.

Abstract: A circular saw machine has a workpiece support and a clamping means consisting of a clamping arm and a clamping block for clamping workpieces; the clamping means is displaceable and clampable in a shaped groove with the aid of sliding members. The sliding members have first inclined faces and slide on corresponding second inclinded faces of the clamping block. Their slide movement may be initiated by means of a screw spindle connecting the two sliding members. When the sliding members slide upwards the clamping means is firmly clamped in the shaped groove. When they slide in the opposite direction clamping is released.

Abstract: This invention discloses an apparatus for cutting tubular objects such as rubber hoses and the like. It comprises a cutting blade movably positioned within a main body and includes a first and second actuator. A retainer is used to hold the tubular object before the cutting blade. The first actuator is secured to the cutting blade and the second to the retainer. Upon securing a tubular object in said retainer, the first actuator is activated thereby allowing the cutting blade to sever the object.

Abstract: A portable stand for cutting timber has a base, a vertical support structure mounted upon the base and defining with the base a first functional area for resting timber thereupon to be cut. On the opposite side of the vertical support structure there is defined with the base a second functional area for an operator to be located. A beam is mounted horizontally upon and parallel to the vertical support structure. A chainsaw mount is pivotally disposed upon the beam for removably receiving a chainsaw, the chainsaw mount adapted for movement along the axis of the beam. A clamp arm clamps onto timber disposed upon the first functional area for resting timber.

Abstract: The portable washer cutter of this invention comprises a pair of enclosures adapted to be interconnected and operative to rotate to progressively close the two enclosures together. A cutting knife edge secured in one enclosure progressively engages with each rotation a flat washer blank supported in the other enclosure to produce a desired central cut-out from the washer blank.

Abstract: A tissue slicing device is provided comprising of stationary floor, side wall and back wall; a movable L-shaped side wall, a sliding-removable front wall; a telescopically adjusted and movable cross bar stationed between and atop the said walls and floor, respectively, whose movement is governed by a millimetrically regulated apparatus, and an L-shaped cover moving above and aside said holder and its stationary side wall, respectively, whose movement is governed by a millimetrically regulated apparatus. A fixed gap is situated between the said two side wall and front wall, on top of which the said L-shaped cover is guided to form a slit of a desirable size, consistent with the thickness of the tissue slice to be prepared, through and along which an excising knife is passed.

Abstract: A device for removing the perforated guide edges from computer paper by a shearing action. The computer paper is supported on a support plate of a first frame, with the line of perforations substantially aligned with a shearing edge provided on the distal end of the support plate. A shearing mechanism is slidably mounted for vertical movement in a second frame which is secured to the top of the first frame. The shearing mechanism includes a shear plate which is movable downward for engagement with the computer paper along the line of perforations where application of an additional force to the shear plate results in clearly shearing the perforated edges from the computer paper. Springs bias the shear plate upwardly for another shearing operation.

Abstract: Apparatus for cutting sheet material has a cutting blade on a carriage which is displaced along a guide member to co-operate with a fixed blade. The apparatus is removably mounted on a structure which provides a support surface for the material to be cut and, to this end, there are clamping means for removably securing the cutting apparatus to the structure.

Abstract: A work holder for vertical band saws wherein a moving blade is laterally translated through a work table slot. The work holder includes a fixed reference member mounted on the table transversely disposed to the table slot and intersected by the blade. A clamp mounted upon the work table in alignment with the slot bridges the slot and saw blade path of movement holding the workpiece against the reference member permitting firm retention of the workpiece adjacent the blade to permit small pieces to be accurately severed.

Abstract: An adapter for use with circular saws to provide a ready cut-off or "chop saw" capability. The adapter is comprised of a flat base having adjustable jaws for gripping of bar stock. Hinged to the flat base is a clamping plate for clamping a circular saw to support it in an arc-like movement from a rest position to an operative cut-off position. The clamping plate has a deep groove receiving a base of the circular saw which may be readily clamped therein.

Abstract: The invention relates to a circular saw machine having a machine frame, a workpiece support, a rotatingly driven circular saw blade and a clamping device for clamping workpieces on the workpiece support; the clamping device is displaceable and clampable on the machine frame and relative to the circular saw blade in a groove and by means of a sliding member engaging in this groove. The sliding member is hereby designed to be clampable in the groove by means of an eccentric so that the clamping device of such a machine may be adjusted and locked in position in a simple manner.

Abstract: A compound angle disk cutting apparatus (11) comprises a stock feed and orienting mechanism (13) for feeding and orienting stock to be cut, a cut piece handling mechanism (15) for manipulating a workpiece cut from the stock, a cutting member (19) and a cutting member positioning mechanism (17). The various components of the apparatus (11) are configured such that any engagement of the cutting member (19) with a workpiece has a common center point of cut (21). The point of cut (21) is defined as the point of coincidence for the center of rotation of the stock workpiece, the center of vertical pivot of the cutting member (19), the center of horizontal pivot of the cutting member (19), the vertical-tiltable travel of the cutting member (19) as well as the transverse-rotatable travel of the cutting member (19).

Abstract: Apparatus for separating individual conductors of a ribbon cable comprises a pair of rollers having annular teeth which intermesh to split the cable as the rollers are moved together. The cable is clamped in a stationary frame and the rollers are mounted for rotation in a carriage which moves linearly in the frame to separate the conductors along a length of the cable.

Abstract: A cutter is illustrated to have a pivoted support for adjusting the angle of cut of a piece of vinyl or aluminum siding which is held in a fixed position in longitudinal alignment.

Abstract: A sawing device comprising a frame 1, a clamp provided with mutually displaceable jaw 18, at least one of which is provided with a screw sleeve 26 co-operating with a screw spindle 19, the length of the screw sleeve together with the thickness of the jaw is equal to or larger than the axial length of the screwthread on the spindle, a holder 3 adapted to pivot about a shaft 2 of the frame 1, a circular saw blade 4 rotatably journalled in said holder, the blade being at right angles to the shaft, and a cap 13 extending around the saw blade 4, said cap comprising a part 13 being stationary relative to the saw blade and at least one part 14 pivoted to the stationary part and connected with the frame by means of a leverage 16, and wherein in all positions of the holder 3 the tangential point 30 formed by an imaginary tangential line going through the shaft at the circumference of the saw blade is located between the medium perpendicular plane V--V of the clamping jaws 18 and the shaft.

Abstract: A safety attachment for use with cutting apparatus having a cutting member adapted to reciprocate particularly with respect to a fixed frame structure including a support bar mounted for movement with the cutting apparatus and the cutting apparatus having successive cutting positions so that the support bar has successive work positions, at least one bell crank having one end pivotally coupled to the support bar, having its fulcrum provided with a connecting link for fixedly positioning the fulcrum in spaced relation from a reference point on the cutting apparatus, and having the other end of the bell crank free and containing an aperture therein, a working rod threaded at one end and threadedly engaging a coupling link and an intermediate portion proximate the other end of the working rod adjustably engaging in slidable relation with a support rod having a pivot coupled to said aperture, and rabbet holder means being supported in a transverse slot in a working area and having a linking coupling between the r

Abstract: A severing machine including a feed device for cutting tool arranged to advance continuously to effect cutting of a workpiece, a machine stand with a workpiece supporting table and clamping jaws, and a machine head containing the tool movable relative to the table during cutting.

Abstract: A motor operated circular miter chop saw is pivotally mounted on a generally horizontal axle pivot bolt about which it rotates in a vertical plane with the axle pivot bolt being carried by a cast support base structure. Angular orientation of the work-piece is provided by an angularly adjustable fence rotatably carried by the cast base support structure. Clamping means are also provided selectively mountable with the cast support base to provide hold-in clamping action for holding a work-piece against the fence or mountable with the fence to provide hold-down clamping action for holding a work-piece against the cast support base.

Abstract: The present apparatus applies force along a line or to a surface through one or more linear or rather longitudinal, elastically expandable or deformable members. The expansion of the elongated member, such as an elastic, reinforced hose or membrane, is transmitted to the tool proper, for example, a strip steel knife or a clamping device, along the entire length of the tool, whereby a linear force application is achieved. Several of such members may be arranged in parallel to obtain substantially a surface area force application. The force application member may also be curved for applying the force, such as a cutting force to an equally curved tool such as a strip steel knife. The force application member is returned to its starting position after a work stroke is completed. The work stroke is performed by expanding the member with the aid of a medium under pressure. The return is accomplished by a spring force or by a similar expansion member.

Abstract: A tool is disclosed for slitting cable to separate individual conductors or groups of conductors from the cable as a whole and as required in order to form a wiring harness. The subject tool is particularly useful for slitting cable of the type known as flat flexible cable in which a plurality of flat conductors are embedded in or laminated between sheets of insulation. The tool includes a cutting head in which one or more cutting elements is inserted. Each cutting element has at least one cutting wheel fixed thereon at a particular location which would lie between conductors of the cable. The tool also includes clamping means so that the cable is securely positioned and will not slip during the cutting operation.

Abstract: A power shear has a pair of parallel frame plates spaced apart to either side of a fixed blade and a movable blade. The movable blade can be displaced past the fixed blade to shear a workpiece extending across the plane and resting on the fixed blade A holddown plate is slidably mounted in rails on one of the frame plates and has a pair of edges guided by the rails and overreached by teeth formed on these rails. These edges of the holddown plate are formed with notches that can be aligned with the teeth to allow removal of the holddown plate in a direction perpendicular to its plane. A positioning spindle threaded through a nut fixed on the one frame plate can have an enlarged head engaged in a T-shaped cutout of the holddown plate so that when the holddown plate is lifted perpendicularly off the frame plate it is also disengaged from the positioning spindle.