Abstract: A saw blade guard for a sawing power tool, particularly a mitre saw, comprises a protective element having two side walls each formed as a part of a circle, and a peripheral wall connecting the side walls with one another, the side walls having a center and an edge spaced from the center, the protective element being formed as an integral element and provided with a member in the region of the edge for turning the protective element as a whole.

Abstract: A sawing machine comprises a housing (14), an arm (3) pivotable relative to the housing about an axis (2), a member (4) arranged on the arm, intended for connection to a saw tool and rotatable about an axis spaced from the pivot axis of the arm and parallel thereto, means (19) for rotating the rotatable member, means (38) for pivoting the arm relative to the housing, and an element (53) arranged on the arm, intended for connection to a guard for the saw tool and rotatable for changing the position of the guard relative to the arm depending upon the pivoting position of the arm relative to the housing. A device for automatical rotation of the element (53) comprises a part (30) secured against rotation relative to the housing and located in the area of the pivot axis (2) of the arm as well as means (68) for mechanical force transmission from this part to the rotatable element (53).

Abstract: A desk-top cutter with a saw blade inclining mechanism, including a turntable rotatably provided on an upper surface of a base, a fence disposed above the turntable for supporting a workpiece on the upper surface of the base, a holder supported inclinably relative to the upper surface of the turntable at the rear end thereof, a slide shaft slidable back and forth at an upper end of the holder substantially parallel to the upper surface of the base, a hinge provided at a forward end of the slide shaft, a motor and a saw blade, and a saw cover covering an upper half of the saw blade. The motor is rotatably supported vertically at an upper end of the hinge. A safety cover provided in the saw cover and rotatable around a support provided at the rear portion of the saw cover guards the lower half of the saw blade. The safety cover includes a pair of lower cover members mounted so that end portions of the lower cover members can be rotated upwardly irrespective of the cover holder.

Abstract: A circular saw comprises a machine structure, a gearbox, a motor-driven circular saw blade rotationally mounted on the gearbox and a pivot shaft on which the gearbox is pivotably supported. The pivot shaft is firmly connected at one end to the machine structure and is mounted at the other end in two brackets which form an angle between them. Each of these brackets is adjustable by means of an eccentric bearing rotatably mounted on the machine structure in such a way as to allow adjustment of the pivot shaft and with it the circular saw blade in the direction of two coordinates.

Abstract: A drive and bearing arrangement for a circular cutting machine is described which is characterized by its high operational reliability, long working life and precise knife guidance. For this purpose a particular bearing arrangement is provided for supporting the knife shaft. The knife shaft is journalled at the knife side via a bearing which is particularly suited to bear radial forces while a bearing unit which can bear both radial forces and also axial forces is provided directly adjacent this bearing. The inner and outer rings of all the bearings are clamped together without play in the axial direction.

Abstract: The present invention provides a meat saw for simultaneously making multiple cuts in a piece of meat and a process for cutting a piece of meat. The meat saw includes a base and a saw table supported by the base. The saw table is adapted to support the piece of meat to be sawn and contains a plurality of elongated, generally parallel apertures. A restraining member holds the piece of meat against the saw table. The meat saw further includes a plurality of spaced rotary saw blades mounted on a common rotatable shaft, the shaft being located beneath the saw table. The shaft is movably mounted on the base so that the position of the shaft relative to the saw table is continuously adjustable. The position of the shaft can be adjusted from a lower position, in which the blades do not extend above the saw table, to an upper position in which the blades extend through the apertures in the saw table and above the saw table.

Abstract: A power miter saw includes a support base and a mounting arm connected to the support base for swinging movement around a vertical axis. A miter saw unit is pivotally connected to the mounting arm. The miter saw unit includes a circular saw blade and a drive motor for driving the saw blade. A blade case is attached to the miter saw unit and is adapted to partially encase the saw blade so as to provide an exposed operational portion of the saw blade. A movable safety cover is mounted on the blade case so as to cover the exposed operational portion of the saw blade. Actuating means is disposed between the mounting arm and the safety cover for directly associating the safety cover with the pivotal movement of the miter saw unit.

Abstract: A cutting apparatus comprising a swinging cutter unit which is pivotally coupled through a first shaft to a stationary working table so as to be swingable about the first shaft between its raised resting position and its lowered cutting position. The swinging cutter unit includes a motor-driven circular saw-blade fixedly mounted on a second shaft coupled to a drive motor, a housing for partially encasing an upper side portion of the circular saw-blade and supporting the second shaft so that the circular saw-blade is rotatable about the second shaft in response to operation of the drive motor, and a blade guard supported by the housing to be rotatable about the second shaft to expose and cover the saw-blade. The blade guard is biased by means of a spring so as to cover the saw-blade and has an engaging device at a portion of the outer surface thereof.

Abstract: A saw-blade guard arrangement in a motor driven chop saw which includes a new unit pivotally mounted for movement between an upper rest position and a lower operational position. The saw unit is pivotably connected to a hinging member through a pivot shaft, and the unit includes an upper safety guard, a motor casing integral with the upper guard, a saw blade fixed to a drive shaft connected to a motor shaft, and a lower guard rotatable to a first direction for covering a part of the saw blade when the saw unit is in the upper rest position and rotatable to a second direction when the unit is moved to the lower operational position.

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 rail cutting apparatus mountable on a rail and having a linkage structure which supports a rail saw in an upright position at either side of a rail. The linkage structure and rail saw have coacting structure including a mounting block and a mounting plate which securely lock the rail saw in either of its positions and which enable movement of the rail saw between these two positions without complete removal of the rail saw from the linkage structure.

Abstract: An improvement is set forth in a sawing apparatus having a table supporting a workpiece, a fence for guiding the workpiece and an operator moveable electrically operated saw having a first normally biased off switch controlling application of electric power to the apparatus, the switch being positioned to be controlled by the hand of an operator which controls movement of the saw. The improvement comprises a second normally biased off switch connected in series with the first normally biased off switch, the second switch being mounted adjacent to the fence a sufficient distance from the saw blade to prevent the saw blade from contacting the operator's off hand when the off hand is activating the second switch and in a position whereat the off hand can, simultaneously with activating the second switch, adjust the position of the workpiece along the fence.

Abstract: Boiler tube panel removal apparatus includes elongated guide rail structure for securing to a boiler tube panel adjacent a desired cut region, and a cutting tool assembly for mounting on the guide rail structure. The cutting tool assembly includes a support carriage with spaced guide structure for engaging the guide rail structure, main pivot structure secured to the support carriage having a pivot axis extending transversely to the guide rail structure, secondary pivot structure secured to the support carriage, and plunge cut link structure mounted on the secondary pivot structure. A cutting tool that is mounted on the main pivot includes a drive motor, a manual motor control, a drive shaft and a tube cutter disc mounted on the drive shaft. Manual operation of the plunge cut link structure rotates the cutting tool about the main pivot axis in plunge cutting action through a panel of tubes adjacent the guide rail structure.

Abstract: Method and apparatus for supporting a power tool, e.g., a power mitre box, are disclosed. In a preferred embodiment (10), an electrically-powered motor unit (16) is pivotably supported by a table (14) which in turn is rotatably supported by a base (12). The base (12) preferably includes four legs (20) and an equal number of studs (26). The legs (20) and studs (26) combine to form front slot (27a) and rear slot (27b) in the base (12) suitable for receiving a pair of horizontal support members, e.g., a pair of two-by-fours (34). The base (12) also preferably includes a pair of extensions (24) which are sized to make the top surface of the base (12) and table (14) flush with a plurality of cross pieces (36) spanning the horizontal support members (34). The flush surface created by the cross pieces (36), base (12) and table (14) is suitable for supporting a long workpiece so as to minimize blade binding and splintering.

Abstract: Method and apparatus for providing motive power to a tool are disclosed. A preferred power mitre box (10) including a base (12), a table (14) and electrically-powered motor unit (18) suitable for driving a saw blade (20) is described. The motor unit (18) includes an armature (40) and an arbor shaft (22) which are respectively supported by armature bearings 42 and arbor bearings 44 and are preferably substantially parallel and of substantially the same length. Also, the distances between the armature bearings (42) and the arbor bearings (44) are preferably substantially equal. The relatively large distance between the arbor bearings (44) causes the blade (20) to have very little play or deflection due to looseness in the bearings (44). In preferred embodiments, a speed reducer assembly (34) is located on the opposite end of the arbor shaft (22) in relation to the blade (20). Also, the speed reducer assembly is preferably of the cog belt type.

Abstract: A paper cutting attachment for a drum type plotting apparatus for a computer. The attachment comprises a round slender cross-shaft adapted for mounting to the plotting apparatus. A cutter head is carried on the cross-shaft and is free to rotate and translate on the cross shaft. The cutter head has a circular cutting blade and guard means to protect the operator against injuries from the cutting blade. Means are provided for mounting the cross-shaft to the drum type plotting apparatus.

Abstract: A cutting device for a belt-like object is characterized by a pair of feed rollers and another pair of feed rollers which hold from both sides an object being supplied to be cut in succession. The rollers rotate at the same speed and are mounted in a horizontal direction respectively above and below the cutting position. The rotation of a main shaft driven by a motor is transmitted to a driving shaft of the pair of feed rollers placed above the cutting position through the main driving wheel of a one-way clutch. The rotation of the main shaft is also transmitted to a driving shaft of another pair of feed rollers placed below the cutting position through a subordinate driving wheel of said one-way clutch.

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: In a motor driven circular saw, a saw blade drive is provided, by which a rotary movement of a saw blade, supported on a rotary blade shaft, is superimposed by a back and forth-movement in the direction of sawing to produce a forward stroke and a backward stroke of the blade and to thus improve cutting efficiency of the saw. The saw blade drive includes a pinion at the end of a motor shaft, a first gear meshed with the pinion and supported on the saw blade shaft, a second gear meshed with the first gear and having a cam and eccentrically positioned together with the cam on a stationary axle. A coupling rod connects the cam with the saw blade shaft to impart to the latter the back-and-forth movement.

Abstract: This invention is directed to the removal and also to the replacement of a beam end connection assembly in a walking beam. A walking beam comprises a beam hanger axle bracket and also an equalizer beam. The beam end connection assembly comprises an inner tube and a rubber bushing. The inner tube is positioned in the beam hanger axle bracket and also in the equalizer beam. The rubber bushing is between the inner tube and the equalizer beam. The rubber bushing and the inner tube are severed, preferably, simultaneously. Then, the remnants of the inner tube and the rubber bushing can be removed from the beam hanger axle bracket and the equalizer beam. Then, it is possible to install a new beam hanger connection assembly in the beam hanger axle bracket and the equalizer beam.

Abstract: To enable band treatment installations to be continuously operated, the end of the band (1) passing through is welded with the start of a new band (2). In the joining of bands (1, 2) of different widths or when a band is offset, annoying corners or lateral projections frequently cannot be avoided. A shears for notching these regions or for cutting out segments (17) and strips (18) by means of a knife pair travelling into the band consists of an upper and a lower circular knife (3, 40) and possesses a pivoting drive (6) for moving the knife pair along a curve.

Abstract: A portable miter saw for cross-cutting and mitering elongated workpiece has a mechanism interlocked with the turntable for shutting the saw blade clearance gap in the guide fence. The mechanism is provided with a pair of shutter plates slidable on the guide fence and an interlocking piece connected to the shutter plates and movable in operative association with the turntable so as to linearly displace the shutter plates upon rotation of the turntable to selectively change the cutting angle of the saw blade.

Abstract: An improvement is set forth in a sawing apparatus having a workpiece support structure and an operator moveable electrically operated saw having a first normally biased off switch controlling application of electric power thereto, the switch being positioned to be controlled by the hand of an operator which controls movement of the saw. The improvement comprises a device adapted for gripping, positioning and clamping a workpiece relative to the workpiece support structure and a second normally biased off switch connected in series with the first normally biased off switch, the second switch being positioned to be controlled by the off hand of the operator while the off hand is utilizing the device. Since both hands of an operator must be holding onto normally off switches and since both switches are in positions removed from the area of movement of the saw blade, the operator is protected from accidently cutting himself.

Abstract: A saw wherein an arbor is mounted to drive a circular saw blade from below a flat work surface upward through a slot in the work surface to sever any work piece suitably disposed on the work surface. A guard/clamp above the work surface is lowered to engage and clamp each such work piece on the work surface before the saw blade begins its ascent. A sensor is mounted on the guard/clamp to sense the presence of a work piece at a location immediately on the work piece feed side of the saw blade and adjacent a saw fence. The sensor prevents operation of the saw when the sensor fails to establish the presence of a work piece on the work surface.

Abstract: A circular sawblade useful in cutting circular figures from a planar material utilizing a power source to rotate the sawblade where the blade has a selected degree of concativity to accommodate the radius of the circular figure to be cut from the planar material. The present invention further comprehends a saw device to mount the blade for rotation where the cutting plane of the material can be selectively adjusted with respect to the degree of concativity of the sawblade to selectively adjust the angle between the surface cut by the blade and the planar surface of the material.

Abstract: A chop saw pivotably mounted for movement between a raised rest position and a lowered operational position, having a motor driven saw-blade rotatably supported about a shaft, with a saw housing partially encasing the saw-blade and a swinging blade guard which covers the exposed segment of the saw-blade when the saw is in the rest position. When the saw is lowered to its operational position, a linkage system comprising four effective levers and four hinges clears the blade guard, thereby exposing the saw blade to the work piece. To accommodate changing the saw blade while the saw-unit is in its rest position, the effective length of one of the levers can be temporarily reduced, thereby clearing the blade guard from the exposed section of the saw blade. This provides easy access to the saw-blade to be changed.

Abstract: A portable adjustable washer cutter and improved sealing washer blank useful in telecommunications applications are described. The cutter comprises an essentially flat frame carrying a rotatable shaft and a platform placed opposite thereto for mounting a sealing washer blank in which a desired central opening is to be cut. An improved sealing washer blank having a small central opening and a small opening along its periphery can be easily mounted on the cutter by insertion of protruding members on the cutter through these openings. The sealing washer blank is cut by means of a blade mounted on a member attached to the bottom of the shaft. In a preferred embodiment, the sealing washer blank is provided with concentric annular ribs, the sealing washer blank being cut at a position between ribs.

Abstract: A cutting apparatus has a cutting tool mounted on an e.g. pivotal support member, under the plane of cut, the cutting tool cutting upwardly through a workpiece to be cut by movement of the support member. The support member is carried by a pivot mounting on a vertical main support plate, the pivot mounting being so arranged that the plane of the cutting tool is substantially aligned with the middle of the pivot mounting. The tool feed forces are applied to the support member close to the notional plane of pivotal movement of the support member, which plane extends through the cutting tool, while the main support plate is adapted to carry clamping means on its top.

Abstract: A tube slotting apparatus (10) includes a base (12) upon which a polyvinyl chloride tube (86) is disposed. The tube (86) is mounted over a convex surface (71) to allow bowing thereof. A tensioning apparatus (52) presses the tube (86) against the convex surface such that the upper surface thereof is tensioned and the lower surface thereof is in compression. A plurality of saw blades (70) are mounted on a pivoting bracket (72) to provide cutting of the slots in the tube (86). Rotation of the saw blades (70) on to the tensioned surface of the polyvinyl chloride tube (86) results in the formation of slots. The saw blades (70) are rotated in the opposite direction to the cutting teeth and the portion of the polyvinyl chloride tube (86) disposed between the two saw blades during formation of the slots pulls away from the surface of the saw blades such that binding is prevented.

Abstract: A chop saw has a saw unit connected pivotally about a horizontal axis to a turntable mounted rotatably in a base plate about a vertical axis. An indexing mechanism for locating rotational positions of the turntable comprises catch recesses on the underside of the turntable along a circular arc. A leaf spring is mounted on the base plate and has a free end engageable in the catch recesses upon rotation of the turntable. A release element is movably mounted in the base plate and operable to flex the leaf spring to move the free end thereof out of engagement with any catch recess engaged thereby. Advantageously the leaf spring and the base plate may be integrally molded or cast. Also, the catch recesses may conveniently be formed during casting or molding of the turntable.

Abstract: A combination table and miter saw is provided which has a slotted strip attached directly to a rotatable work supporting base plate. The slotted strip is part circular and forms a bearing connection for a saw assembly which accommodates pivoting of the saw assembly about an axis through a working surface of the bottom of the base plate. A threaded adjusting spindle for locking the saw in position during table sawing is connected to a bearing block which also is attached to the slotted strip.

Abstract: A hydraulically powered mobile radial arm timber saw and control assembly in which positive control of saw movement is maintained from the fully retracted saw position to the fully extended saw position by a novel hydraulic control assembly.

Abstract: A miter saw having a saw table which carries the saw unit and is rotatably mounted in a base plate is provided with means for locking the saw table. Such locking means comprise at least one through bore in the fence extending over the upper surface of the saw table and a bolt having a circular cross-section and being rotatably fitted in the through bore. Both the through bore and the bolt comprise an annular shoulder continuously increasing its distance from the saw table. The annular shoulders are in engagement and by rotating the bolt its end surface can be pressed onto the saw table.

Abstract: An apparatus for semiautomatically sticking an adhesive film on a silicon wafer and on a ring used as a carrier. After the ring and the silicon wafer have been manually positioned on tables, an adhesive film is automatically stuck on the ring and the silicon wafer. The excess portion of the film is then cut by hand along the ring and transversely. The apparatus greatly facilitates these works.

Abstract: Apparatus for controlling the operating relationship of a rotatably driven circular saw blade to an adjacent workpiece includes a base carrying an elongated slide plate having a longitudinal slot adjacent one end. An indexing assembly is disposed between the base and the elongated slide plate and engages within the slot of the slide plate to constrain one of its ends to longitudinal movement, and a crank rotatably connects the base to the medial portion of the slide plate. A first motor is mounted on the other end of the slide plate to rotatably support the blade, and a second motor may be carried by the base for rotating the crank to move the slide plate from side to side and up and down along the slot and thereby move the saw blade along an elliptical path. In operation, the second motor turns the crank to cause the blade to be brought into contact with the workpiece along a path generally parallel with a major axis of the elliptical path.

Abstract: A cutter system for pipe casings and the like, including a generally "C" shaped cutter assembly body having an always open side entry and exit area leading into the centrally located cutter area with an annular trackway extending an exemplary 290.degree. about the operative center of the cutter system. A cutter sub-assembly is carried on the trackway for back and forth movement of an exemplary 110.degree. in each direction with the sub-assembly carrying two, directly opposed rotating cutter blades which cut the pipe casing as the sub-assembly is moved to and from on the trackway. The two blades travel in each direction a minimum of one-half their arcuate spacing difference and preferrably less than their arcuate spacing difference, producing a full 360.degree. cut. The cutters are radially moved in and out by a reciprocating yoke assembly. The cutter body assembly is pivotally mounted onto a telescoping boom attached to for example a work vehicle.

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: An apparatus for cutting openings in pipes of cuttable material, in particular in plastics drainage pipes has at least one cutter head carrying at least one cutter, the cutter head rolling at least in part on the periphery of the pipe and being positively driven for this by means of a planetary gear. By virtue of this, the cutting edge of the cutter moves around the pipe in an epitrochoid. The cutter head is provided with ridges engaging in transverse corrugations in the outer wall of the pipe.In order to be also able to cut openings in pipes formed at least in part with annular corrugations over their periphery, at least the cutter head is provided with helically extending ridges and the at least one cutter is disposed parallel to these ridges.

Abstract: The invention disclosed relates to cutters for automatically cutting strips of material such as wire rope, electrical cable, or any other desired cylindrical, linear material. The apparatus proposed is best suited for cutting wire rope having a diameter of from 1/4 inch to about 1 inch. The cutting apparatus includes a controlled turntable upon which a roll of wire rope is mounted, the wire rope is directed through the tubular guide into two oppositely disposed rollers which are adjusted to size for feeding the wire to a cutter. Adjacent the cutter a V-groove platform is provided in which the wire rope lays during cutting. The V-groove is formed by adjacent doorsections that pivot to permit the cut piece to fall through the opened doors to a container below the table. The apparatus is provided with a suitable electrical circuit for operating the cutter motor, the grip roller, the turntable and controls for movement of the cutter and opening the V-groove doors.

Abstract: The invention comprises an improved cordwood cutting saw accessory for small garden tractors. The saw frame is proportioned and constructed to provide a safely operable saw attachment without the need for auxiliary stabilizing supports and level ground upon which to park the tractor and operate the saw.The saw frame is cantilevered from the front of the garden tractor the minimum horizontal distance necessary to support a circular saw blade and shaft adjacent the top of the tractor cowl. The elevation of the saw is substantially between the waist and shoulders of the saw user. The vertical height of the saw frame is equal or greater than the horizontal cantilevered length of the saw frame and two or more times the height from the ground of the cantilevered attachment to the tractor.

Abstract: An apparatus for trimming the wire leads of electronic components mounted on printed circuit boards is provided, which comprises a base plate, an adjustable holding fixture for a printed circuit board fixedly disposed on the base plate, a pivotable cantilevered bracket assembly mounted on the base plate adjacent the holding fixture, a motor-driven rotary cutting blade disposed on the end of the cantilevered pivotally movable bracket assembly for movement along the surface of a printed circuit board disposed within the holding fixture, and an anti-warp device including one or more pivotable lever arms disposed above and below the printed circuit board, and an adjustable pin mounted on each of the upper lever arm to engage the top surface of said printed circuit board and urge the same into a flattened position and an adjustable pin disposed in each of the lower lever arms to engage the bottom surface of said printed circuit board to urge the same in a flattened position.

Abstract: A self-contained sheet metal cutter is mounted on a wheeled dolly and includes upper and lower power driven shear cutting wheels between which is engaged the plate or sheet to be cut. An adjustable trammel assembly extends from the dolly and includes a center point member engageable with an aperture in the plate to be cut and which corresponds to the center of the arc or circle. The trammel is adjustable to the radius of the arc or circle and the center point is engaged with the aperture in the sheet whereupon the wheeled dolly is pushed manually around the arc or circle as the shear wheels cut the sheet to the preset radius arc or circle. The rear wheel of the dolly is castor so that it follows the track readily and easily.

Abstract: A motor operated circular miter chop saw is pivotally mounted on a generally horizontal axle pivot pin about which it rotates in a vertical plane with the axle pivot pin being carried by a cast support base structure provided with means allowing both lateral adjustment and vertical adjustment of each end of the axle pivot pin. Angular orientation of the work piece is provided by an angularly adjustable fence rotatably carried by the cast base.

Abstract: Orbit saw apparatus including a driven shaft rotatably supported in an upright mounting wall which is part of the frame in the apparatus. Orbit arm structure is rotatably supported on one end of said driven shaft, and an arbor shaft parallel to the driven shaft and mounting a circular saw blade is journalled on the orbit arm structure. A motor has its output shaft connected through belts to the driven shaft, and the driven shaft is connected for drive purposes to the arbor shaft. The motor also runs a pump, which is part of a pressure fluid supply system for an adjustable hydraulic motor which produces rotation of the orbit arm structure.

Abstract: A first part 34 of the protection device 32 is mounted on the tiltable saw assembly, embraces the saw blade 24 from behind, and extends to the lower peripheral region of the blade 24. A second part 36 forms a cover which engages over the blade 24 and which, in the starting position of the saw assembly, surrounds the blade 24 at the upper peripheral portion and at the peripheral portion presented to the operating side, as far as the vicinity of the lower peripheral portion or the cutting location. A cam 74 on one part cooperates with a follower 78 on the other part so that, as the saw assembly is tilted, the covering part 36 remains at substantially the same horizontal level.

Abstract: The machine includes a horizontal base plate on which a plurality of vertical tubes are mounted, apertures in said plate being disposed beneath said tubes so food products are free to pass down through the tubes and the plate. Stop means below the plate limit the distance which food products can extend out of the tubes. A blade assembly is rotatable below the plate on a vertical axis between the tubes. A blade assembly includes a freely rotatable circular blade at its outer end which passes under the tubes in sequence and cuts corresponding food products into predetermined length chunks.

Abstract: A rocking arm saw is disclosed which may be used in one mode with an operating handle as a pull-through power saw for accurate cross or angle cutting while being readily convertable by removal of the handle to a table saw for ripping or groove cutting. The saw in its free standing form comprises a cutting surface platform and work table top, a subjacent box-like machinery housing, and a base support ventilating structure sized to provide a carrying box for the housing. When used as a pull-through saw, the rocking arm is urged elastically through its forward cutting stroke and biased rearwardly to a blade retracted position. The table top is thus maintained free of blade obstruction since the blade is protectively shielded beneath the cutting surface upon the user releasing the operating handle.

Abstract: A cold circular saw has a saw blade displaceable in a substantially vertical feeding direction and also swingable, a clamping device including at least one stationary abutment member and operative for laterally abutting against and holding a workpiece, and an adjustment element for adjusting the saw blade in its plane and in a direction which is transverse to the workpiece feeding direction and to the saw blade feeding direction, as well as relative to the stationary abutment of the clamping device.

Abstract: A saw support member for supporting a portable power circular saw is pivotably mounted to a platform defining a workpiece support surface. A pair of fences are pivotally connected on a fixed vertical axis to the platform. First and second arcuate guide slots are defined within the platform in arcs concentric about the fence pivot vertical axis. Each fence has spaced apart first and second guide members projecting therefrom into the first and second associated guide slots, respectively, for guiding the movement of the associated fence at spaced locations along its length. Means are provided for releasably restraining each fence from pivotable movement relative to the platform.

Abstract: A cutting machine having a circular cutting tool, such as a saw blade for cutting a workpiece in two, has the blade mounted on an arm to swing from an inactive or raised position above the workpiece down into engagement with the latter. A guard protects the operator of the machine from the blade and includes a cylindrical cover journaled to turn relative to the blade and enclosing both sides and the edge of the blade. A notch is formed in the cover and faces away from the operator when the blade is in the raised position and a link turns the cover automatically as the blade is lowered so that the notch faces downwardly and exposes the blade to the workpiece. When the blade is in the raised position, the notched portion of the cover projects into a shell so that the blade is completely enclosed at that time.