Abstract: Portable circular saws are taught that may include a base and a saw unit pivotally coupled to the base. The saw unit may have a circular saw blade that is adapted to laterally pivot relative to the base. A stopper may be provided to allow an operator to selectively stop the saw unit at a second pivot angle that is between a first pivot angle and a third pivot angle. Preferably, the stopper may have an operative position and a non-operative position. In the operative position, the saw unit can pivot from the first pivot angle to the third pivot angle without stopping at the second pivot angle. In the non-operative position, the saw unit can pivot between the first pivot angle and the second pivot angle. A first stopper may be provided to permit the saw to be selectively stopped at a small angle pivot position (e.g. 0°) before a minimum pivot angle (e.g. −5°). A second stopper may be provided to permit the saw to be selectively stopped at a large angle pivot position (e.g.

Abstract: The present disclosure relates to a jigsaw including a base, a housing pivotally movable relative to the base about a first axis that extends longitudinally along the base, and a motor positioned within the housing. The jigsaw also includes a blade coupled to the motor by a drive mechanism adapted for reciprocating the blade in an up-and-down motion. The blade is laterally supported by a blade guide connected to the base that is pivotally movable about the first axis. When the housing is pivoted relative to the base about the first axis, the blade guide also pivots about the first axis to inhibit binding between the blade and the blade guide.

Abstract: The present invention provides a circular saw including a housing, a motor within the housing, a circular saw blade rotatably driven by the motor, a base and a bevel angle adjustment mechanism. The bevel angle adjustment mechanism pivotally interconnects the base to the housing such that the circular saw blade is adjustable relative to the base through a range of bevel angles. The bevel angle adjustment mechanism includes a first member carrying a detent and a second member defining a cooperating recess. The detent and the cooperating recess positively define at least one predetermined bevel angle setting.

Abstract: A cutting device is disclosed, comprising a rail attachable to a workface and defining a translational axis when attached thereto; a carriage mounted on the rail and adapted for constrained movement along the translational axis; a turret assembly attached to the carriage for movement therewith and adapted for rotation relative thereto about a pivot axis disposed normal to the translational axis; and a gripping assembly adapted to grip a chainsaw with a cutting plane defined by a cutting bar thereof oriented normal to the pivot axis, the gripping assembly being attached to the turret assembly for rotation therewith, while gripping the chainsaw, between a raised position, whereat the cutting bar is disposed frontwardly from the workface, and a lowered position, whereat the cutting bar intersects the workface. The carriage has two laterally spaced lugs having respective bores centred about the pivot axis.

Abstract: A chainsaw foot for supporting the weight of a chainsaw during substantially vertical use and for fixing the angular orientation between the chainsaw guidebar and the material to be cut. One side of a hinge is attached to a substantially flat baseplate having a rectangular aperture therethrough. The other side of the hinge is attached to a U-shaped clamp. The chainsaw guidebar is removably fixed between the legs of the U-shaped clamp by set screws. A slotted adjusting bracket is fixed to the baseplate proximate to the U-shaped clamp. A locking means attached to the U-shaped clamp engages the slot of the adjusting bracket to thereby allow a user to set and lock the angle of the chainsaw guidebar with respect to baseplate and, consequently, the material to be cut.

Abstract: A saw shoe is provided for use on a hand-held circular saw which has a saw blade for cutting a workpiece. The saw blade has an identified direction of travel. The shoe rides upon a top surface of the workpiece. The shoe has a base with an aperture extending therethrough which accommodates the saw blade. The base further has a top surface and a generally planar bottom surface. The base has a first edge which is located forwardly of the saw blade with respect to the direction of travel of the saw blade, and a second edge opposite said first edge. A pair of opposing side edges extend between the first and second edges. The base further has an opening extending therethrough from the top surface of the base to the bottom surface. The opening is located adjacent to the first edge and at least a portion of the opening is in co-linear relation to the direction of travel of the saw blade so that the user of the saw can view the workpiece through the opening.

Abstract: A device and associated method for simultaneously cutting a section of laminate to be inlaid and the underlying laminate to receive the inlay, which includes a portable cradle and a router mounted on an adjustable length shaft fitted into the chuck of the router, so that the distance that the cutting blade extends below the base of the portable cradle can be adjusted, the router is held within a rectangular router box split lengthwise on each side, hingedly held together on one side and detachably secured together on the opposite side by spring tension, with the router firmly attached to the top half so that the router cutting blade may be raised from the laminate surface by rotating the top half of the case around the hinge, while the angle of the cutting blade to the laminate is adjusted by means of adjustment screws on each side of the end of the router box opposite to the cutting blade, which rotate the router box up or down around a hinge means, on the bottom of the router box adjacent to the cutting bla

Abstract: An improved blade guard stop for a circular saw. The circular saw includes a saw blade driven by a motor for rotation about an axis, a blade guard rotatable about the axis between a covered position, in which the saw blade is covered, and an uncovered position, in which the saw blade is exposed, a biasing member biasing the blade guard toward the covered position, and a flexible spring member to absorb the rotational force of the blade guard and to absorb the biasing force of said biasing member. In the preferred embodiment, the spring member is a leaf spring. Additionally, the circular saw includes an adjustable shoe plate which changes the direction of impact of the blade guard on the spring member. The spring member absorbs the rotational force each adjusted direction. Also, the spring member and the blade guard are constructed of low friction materials so that movement of the blade guard against the spring member does not impede adjustment of the shoe plate of the circular saw.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter which is arranged and configured to protrude through a cutter slot in a contact surface to make a plunge cut into a surface of a workpiece. The drive is arranged and configured to rotatably drive the cutter through a motor. A preferred fence system includes includes a trunnion which pivotally couples the front fence to the fence system and, at any selected distance from a top face of the workpiece to the fence, maintains a constant distance from the top face of the workpiece to the cutter as the front fence angle is adjusted. A preferred fence system also includes an angle segment member, which has two slots used to position the fence in two ranges of fence angles.

Abstract: A reciprocating saw (11) comprises a support (27) attached to the body of the saw and a shoe (25) pivotally attached to the support (27). The pivoted shoe (25) enables the shoe (25) and thus the blade to engage a workpiece at varying angles during cutting. The shoe (25) is attached to the support (27) by a hinge. The hinge (12) comprises a spaced pair of tabs (29,31) extending from the support (27) and located between a spaced pair of tabs (45,47) extending from the shoe (25). Each of the support tabs is paired respectively with one of the shoe tabs. Pins (55,57) extends through apertures (33,35,49,51) in the tabs (29,31,45,47) and forms the hinge pivot. The hinge pivot is maintained in place by spacers (59,61) located, respectively, between each pair of shoe and support tabs and press fitted to the pin. The press fitted hinge (12) is low in cost and is durable.

Abstract: A guide, serving as a platform for a portable, electric circular saw and the saw base plate, presents a trackway in which, slidably, to receive the base plate, and removably mounts a channel element, thereunder, for abuttingly receiving a workpiece, that is a piece of lumber, against the element for cutting by the saw. In one embodiment, the channel element disposes the lumber for cross-cutting. In another embodiment, the channel element disposes the lumber for rip-sawing. The platform is selectively mounted to a support, in inverted attitude, for converting the circular saw to a table saw.

Abstract: A hand power tool comprises a motor housing, a foot plate adjustably arranged on the motor housing, a chip removing tool, a suction device for aspirating chips and dust and provided in a space between the motor housing and the foot plate, a clamping device adjustably mounting the foot plate on the housing and an outwardly accessible handle. The clamping device is connected with the outwardly accessible handle by force reducing actuating members which include an overrunning coupling.

Abstract: A circular saw has a housing enclosing a motor for driving an output shaft about an axis of rotation. An upper bladeguard is immovably secured to the housing and has a rear wall defining an arcuate slot. A rectangular base plate is pivotally attached at its forward portion to the saw housing for swinging movement about a pivot axis parallel with the output shaft and disposed substantially forwardly thereof. An arcuate bracket arm has one end thereof connected to the rear of the base plate. A fastening element is mounted on the other end of the bracket arm and is received within the slot in the upper bladeguard. The operator may adjust the base plate by grasping the fastening element and moving the same along the slot in the upper bladeguard.

Abstract: A compact drill attachment or device for converting rotary drill motion to reciprocating saw action and adapted to be used in conjunction with cordless, electric and pneumatic hand held drills. A practical and extremely versatile tool to accomplish sawing results that were before inconceivable. Featuring a plurality of different reciprocal flush cut options, a plurality of entries from a power source to accomplish close quarter sawing, a blade stroke distance which exceeds the competition, a cutting stroke which is faster than the cleaning stroke, a plurality of shoe or fence settings, and which accepts major brands of reciprocal saw or jigsaw blades.

Abstract: A jig saw 30 includes a housing 32 and a keyless shoe 54 which can be adjusted relative to the housing to selectively position a cutting blade 48 for effecting a cut perpendicular to the plane of a workpiece 66, or a cut which is bevelled with respect to the plane of the workpiece. A locking mechanism 58 includes a lever 60 which is formed with a locking section 170 having a wide cross section portion and a narrow cross section portion. When making an adjustment, the locking mechanism 58 is unlocked by pivoting the lever 60 so that the narrow portion of the locking section 170 is in a prescribed alignment. After making the adjustment to a desired relative orientation and position between the housing 32 and the shoe 54, the lever 60 is pivoted to the locked position. In this position, the wide portion of the locking section 170 is placed in a prescribed alignment whereby the components of the locking mechanism 58 are locked, or tightened.

Abstract: A reciprocating saw having a main body, a reciprocating spindle extending from the main body, and a saw blade connected to the spindle and including a cutting edge for cutting the workpiece. A shoe is pivotally mounted relative to the main body at a pivot axis, and a shoe support extends from the main body to pivotally support the shoe at the pivot axis. The pivot axis is substantially adjacent to the cutting edge such that the pivot axis moves through the workpiece at substantially the same time as the cutting edge. The shoe support includes a post connected to and extending from the body, and a yoke connected to the post, the yoke including two leg portions pivotally connected to the shoe. The shoe is pivotally mounted at a pivot part that is recessed inwardly from a side guide surface. The shoe includes an indicator in alignment with the saw blade to facilitate alignment of the saw blade with a mark on the workpiece.

Abstract: An attachment for a chain saw that allows the angle of a cut to be controlled with great precision. The attachment consists of a rigid, rectangular guide frame with an open window construction. An approximately U-shaped blade mount is hingably attached to the guide frame, thus allowing a saw blade to be inserted through the open window of the guide frame and mounted onto the blade mount. The blade mount, and thus the attached saw blade, can move in an arc with respect to the guide frame, and the attachment includes a selecting means by which to determine the angle between the blade mount and the guide frame and a tightening means by which to secure the blade mount and guide frame in the desired position. An additional feature is a directing fence so as to control the direction of a cut. The fence consists of a first and a second bar that are hingably mounted to one another and can thus be rotated and secured so that any desired angle is set between them.

Abstract: In order to improve a device for the pivotable fastening of a saw base (8) to the housing (1) of a jig saw, with a fastening part (10) which is placed on the saw base (8), with a second fastening part (20) which is placed on the housing (1) of the sabre saw and which matches with the first fastening part (10), and with a connecting means (23) for the detachable connecting of the first with the second fastening part (10, 20) in such a way that an easy, quick pivoting of the saw base (8) is made possible without an additional tool and which in addition ensures a secure retention of the saw base (8) to the housing (1) of the jig saw, it is suggested that the first fastening part (10) exhibit a semi-cylindrically shaped, outwardly toothed surface (13), that the second fastening part (20) exhibit a surface which is configured in a complementary manner to the first fastening part (10) and which is in essence semi-cylindrically shaped and is inwardly toothed, and that the connecting means (23) be a screw (23) which

Abstract: A combination of a base attachment structure and a cutting tool, where the base attachment structure includes a connection bolt (8) inserted and movably fitted in an aperture (9a) formed in a curved plate (9) of a gear housing (2) and a cross-shaped slide aperture (11) formed in an arch-shaped projection member (10) extending from a base (7). The connection bolt (8) includes a first upper threaded portion (8a) having threads running in a first direction to form a left-handed screw, and a second lower threaded portion (8b) having threads running in a second direction, opposite to the first direction, to form a right-handed screw. The first threaded portion (8a) is fitted into a hole (12a) formed in a pressure plate (12), whereas the second threaded portion (8b) pierces into an aperture (13a) formed in an arch-shaped clamp plate (13) and is then screwed to a right-handed fixation nut (16).

Abstract: The drill attachment is a cordless, electric or pneumatic drill device having three (3) flush cut features which enables user to saw in a reciprocating action. A compact metal enclosure has steel bevel gears together to generate perpetual motion onto an eccentric peg to drive arm to blade. The rotation of the drill enters the tool by the removable hexagonal shaft which can be inserted into the tool at three (3) different angles depending on the task. The small bevel gear meshes with a larger bevel hub gear having an eccentric peg that is inside an elongated slot of the blade drive armature. As the small bevel gear rotates, its speed is increased by ratios in the larger bevel hub gear; the rotation of the larger bevel hub gear is converted to a linear reciprocating motion which drives the blade.

Abstract: A hand circular saw comprises a swinging protective hood, a housing which carries a saw shaft axis and a saw blade held rotatable about the saw blade axis, a base plate, the housing being arranged independently turnably relative to the base plate around two further axes extending substantially perpendicular to one another, a first of the further axes being parallel to the saw shaft axis for guiding a turning movement for adjusting a cutting depth and is adjustable on a cutting depth guiding bracket with a scale, while a second of the further axes extends both parallel to the base plate and also parallel to the saw blade for guiding a turning movement for adjusting a miter angle, the cutting depth guiding bracket having an angle-profile shaped cross-section and having at least one leg which is formed as a sliding guide supporting the housing in each cutting depth position.

Abstract: A hand circular saw has a saw blade rotatable about a saw shaft axis, a housing which receives the saw shaft axis, a base plate which supports the housing and is movable with the latter, the housing being turnable relative to the base plate about two axes extending perpendicular to one another independently from one another and arrestable, the axis including a first axis which extends parallel to the saw shaft axis and operates for adjusting a cutting depth, and a second axis which extends both parallel to the base plate and to the saw blade and is used for adjustment of a miter angle, a coulisse having a circular arc-shaped guiding track and a coulisse block which determine a position of the second axis. The coulisse has a coulisse part which is fixedly connected with the base plate and has an upwardly curved ring portion which is also arranged on the base plate.

Abstract: A hand circular saw comprises a base plate, a saw blade arranged so that at least one of an angle position of the saw blade and a miter angle is adjustable relative to the base plate, a clamping block supported by the base plate and provided with a turning guide slot, a clamping screw extending through the turning guide slot, and a supporting arm. The clamping block has a plurality of arresting pockets arranged along the turning guide slot, and the clamping screw carries at least one axially spring-biased displaceable arresting sleeve which is arrestingly positionable in a respective one of the arresting pockets.

Abstract: A circular power saw includes a housing enclosing a motor and a circular saw blade rotatably driven by the motor. The housing is pivotally mounted to a base so that the saw blade may be positioned in a plurality of cutting planes. An adjustment member is mounted to the base and connected to the housing to releasably retain the housing in a plurality of positions corresponding to the different cutting planes. The adjustment member has first and second stops that correspond to first and second planar positions of the cutting blade and a stop engagement member is adapted to engage the first and second stops. The stop engagement member has a first configuration wherein the first and second positions planar positions define the limits of the planar positioning of the blade. The stop engagement member has a second configuration where at least one planar position different than the first and second planar positions defines a limit of planar positioning of the blade.

Abstract: A motor driven hand power tool has a saw including a saw blade, a separating tool formed as a saw blade movable about a tilting axis extending parallel to a cutting line of sight and fixable in each turning position relative to a workpiece which is subdivided by a cutting joint into a product-side and a refuse-side with product and refuse-side cutting edges, a base plate over which the saw blade is positioned. The saw blade is arranged so that the tilting axis extends at a distance under a lower side of the base plate, and the distance is dimensioned so that the tilting axis in a working position of the power tool is located under an upper surface of the workpiece in an interior of the workpiece.

Abstract: A simple miter guide uses planar sheet material to define an overlay panel, a saw guiderail and depending lumber guides and spacers which orient the lumber at a predetermined angle relative to the saw blade and space the guide over an underlying surface. The guide is designed specifically for construction lumber such as two-by-fours and two-by-sixes, and is used by placing the guide on a flat surface, and feeding the lumber into the guide from the back until it is properly aligned for the saw cut. The guide and lumber can be aligned to establish an orthogonal square-cut, or an angle-cut such as 45 degrees. A saw guiderail guides the end of the saw foot as it moves across the saw support raceway, spacing the sawblade adequately from the guide to prevent damage, and permitting an angled undercut to be made. Means to mount the guide to an underlying surface are provided, although unmounted operation is useful too.

Abstract: A heavy, roller-mounted base plate has thereon a conventional pile carpet trimmer having a shearing head disposed to be swung into and out of a pile access opening in the base plate either to trim the pile of a carpet by sliding the plate on top of the pile, or to bevel the carpet edge by sliding the plate beneath and along one edge of the carpet. Attached to the plate adjacent opposite ends of its pile access opening are two, linearly aligned guide members, which slidably engage a carpet edge during a beveling operation. A retention bracket projects from one of the guide members to overlie the pile surface to prevent any bunching or folding of the carpet edge during the edge-beveling operation.

Abstract: A motor driven hand circular saw has a base plate arranged to be positioned over a workpiece, and a saw blade which is displaceable parallel and tiltably about a turning axle relative to the base plate for performing inclined or bevel cuts so that by tilting of the saw blade relative to the base plate about the axle, the saw blade and the axle are displaced parallel to the base plate with a stroke which is proportional to a respective tilting angle transversely to a direction downstream of a cutting point and counteracts a natural displacement of a saw engaging line of the saw blade on the workpiece.

Abstract: An adjustable miter gage apparatus and method for making precision miter cut angles with conventional radial arm saws, table saws, band saws, router tables, and other woodworking machines. The miter gage apparatus utilizes a flat base or table top with a large radius arc thereon and adjustable gages located on the circumference of the arc. The apparatus acts as a large protractor and allows the cutting angle to be accurately adjusted relative to the actual angle at which the saw blade is initially positioned by the woodworking machine. The adjustable gages have set screws threadedly mounted therein for making fine adjustments and may be permanently or removably installed on the base or table top. The set screw threads and radius of the arc are related such that turning the set screw will increase or decrease the angle to within a fraction of a degree. A preliminary angle setting is made using the existing miter scale on the woodworking machine.

Abstract: An electric circular saw of the type including a mechanism for tilting a base relative to the plane of a blade is provided wherein a side knob for being gripped by the user during cutting operation pivotally connects the base and a body of the circular saw through a base attachment portion and a bevel plate having an arcuate guide groove extending through an angular distance corresponding to a tilt angle of the base relative to the blade. The side knob is threaded to the base attachment portion and movable together with the base when the base is tilted. The side knob is spaced from a guide surface of the base by a distance at least larger than a maximum radius of the side knob. The distance between the base and the side knob is constant regardless of the relative angular position of said base and the blade, so that circular saw can be held stably and hence is capable of performing an accurate cutting operation.

Abstract: A construction for a circular saw wherein the two parts of the clamshell housing are secured directly to the motor assembly from different respective sides thereof.

Abstract: A portable circular saw with a 60.degree. bevel cut capability that is provided by a combination of blade diameter, height of front and rear pivot points above the footplate, the ability to tip the saw about a front hinge point to avoid projections contacting the footplate at a 60.degree. angle and recesses and orifices provided in the footplate at points where interference would normally occur between the motor housing assembly and the saw blade when the blade is at a 60.degree. bevel angle so as to prevent any interference of the footplate with the motor housing assembly and saw blade. A positive stop is provided at angles of 45.degree. and 60.degree..

Abstract: A mechanism for adjusting the angle of the base of a circular saw relative the saw blade includes an adjustment bracket having an elongated adjustment aperture which extends over both ranges of angular adjustment. For the first range, the aperture follows a first circular arc at a first radial distance from the pivot axis of the base relative the housing and for the second range the aperture follows a second circular arc at a second radial distance from the pivot axis.

Abstract: In a portable circular saw depth of cut adjustment is effected by pivoting movement between a shoe 24 (which supports the saw on a workpiece) and a motor and gear case housing 26 (carrying the saw blade 12) about a pivot connection 28 rearward of the motor and gear case housing. Forward of the housing 26 an upwardly extending arcuate depth slide 38, fixed to the shoe 24, slidably engages an arcuate depth guide 40 carried by the motor and gear case housing 26. Towards the upper end of the depth slide 38, and in generally fixed relation to it, a clamping assembly 42 selectively clamps the depth slide 38 and depth guide 40 together to establish a depth of cut adjustment setting. The essentially fixed relationship of the locking knob 100 of the clamping assembly 42 to the shoe 24 mean that the operations of changing depth adjustment setting may be made without changing operator's hand positions on the saw.

Abstract: A joint machine having a fence and a fence position adjusting mechanism. The mechanism adjusts a vertical position and angular orientation of the fence with respect to a pair of fence supporting members upstandingly extending from a base which accommodates therein a cutter. a hand gripper is provided between upper end portions of the fence supporting members. The mechanism includes a pair of fence fixing means. One of the fence fixing means fixes both the vertical position and angular orientation of the fence, whereas the other fixing means fixes the vertical position of the fence.

Abstract: A guide shoe of a power chain saw unit is movable along a series of side-by-side roof rafters. A power chain saw of the power chain saw unit is connected to the guide shoe by rigid rods. When operated, the power chain saw cuts notches in the roof rafters in the direction of travel of the guide shoe. Fixed to the guide shoe are upstanding plates formed with arcuate slots. The ends of the rigid rods adjacent the upstanding plates are releasably secured along the arcuate slots of the upstanding plates for locking the power chain saw in various selected angular positions relative to the guide shoe for controlling the depth of the notches and the cutting angle of the chain saw blade of the power chain saw.

Abstract: The invention includes a power operated circular type hand saw having a motor disposed within a housing, a rotating circular sawblade driven by the motor, and a work supporting shoe which is pivotally attached to the housing and moveable relative to the housing to adjust the depth to which the saw blade extends below the shoe. The motor supporting housing includes a locking arrangement and a depth limiting stop plate moveable relative to the housing, the stop plate having a depth limiting ear and a clasp, the clasp is adapted to lock the stop plate in a wide range of depth limiting positions.

Abstract: A saw guide (14') for controlling the linear path/direction of travel with respect to a reference on an object such as a board being cut, of a rotating saw blade is provided. The guide (14') includes a carriage (18') which carries a rod (44') along one longitudinal edge portion in the preferred embodiment. A travel control mechanism (50'), including a movable sleeve (78) slidably received by the rod (44') controls the direction of travel of the saw from a reference defined on an object to be cut. This mechanism (50') includes a protractor which is rotatably mounted on the sleeve (78). A mechanism for adjusting the rotational position of the protractor with respect to the rod is provided. The protractor can be readily stored above the carriage (18') as desired.This application is a Continuation-In-Part of application of Ser. No. 763,295, filed on Aug. 7, 1985, and due to issue on Nov. 25, 1986, with a U.S. Pat. No. of 4,624,054.

Abstract: A guide arrangement for portable power saws is made up of a guide plate adapted to be placed on the work and a stand plate fixed to the saw. The guide plate possesses a raised rail running in the feed direction of the saw. In use, the saw with the stand plate is placed on the guide plate so that a socket in the stand plate fits round the rail and the stand plate may then be moved along the guide plate on the rail, the guiding section straddling the rail and guiding the stand plate on the rail. The stand plate is fitted with a backlash limiter having an operating part acting against the side of the rail for reducing play between the rail and the stand plate. This means that the saw is guided in the length direction parallel to the rail of the guide plate and it is possible for straight cuts to be sawn with a high degree of accuracy without any danger of the saw running askew.The backlash limiter may take the form of a spring loaded member or one driven by a screw or threaded rod.

Abstract: The sound produced by the movement of the teeth of an idling circular saw or band saw blade in air is substantially reduced by exposing the blade to a radiation impedance which is effectively imaginary, thereby subjecting a preselected portion of such sound to propagation cut-off. Propagation cut-off is achieved by providing a cover including a pair of closely spaced parallel acoustically hard-wall plates positionable on both sides of the blade. Preferably the plates are spaced apart by a distance less than 21 millimeters, and extend beyond the tips of the teeth by a distance several times the space between the plates. Portions of the plates may be moveable to expose the teeth during the cutting operation.

Abstract: A saw guide (14) for controlling the linear path/direction of travel with respect to a reference on an object such as a board being cut, of a rotating saw blade is provided. The guide (14) includes a carriage (18) which carries a sleeve (36) along one longitudinal edge portion in the preferred embodiment. A travel control mechanism controls the direction of travel of the saw from a reference defined on an object to be cut. This mechanism (50) includes a protractor which is rotatably mounted on one end portion of the rod (44). A mechanism for adjusting the rotational position of the protractor with respect to the rod is provided. The protractor can be readily stored above the carriage (18) as desired.

Abstract: A portable precision guide for powered hand tools is formed having a base plate with a protractor portion and a table portion, a guide bar on one surface of the base plate guides a powered hand tool on the table portion and an angle arm pivotally mounted on the other surface of the base plate can be positioned by said protractor at a desired angle with said guide bar to position a workpiece for cutting. Said base plate has openings for holding said workpiece therethrough against the angle arm; the workpiece can also be marked where desired through said openings.

Abstract: A portable electric circular saw with a tiltable base plate is disclosed herein. The circular saw comprises a housing for accommodating an electric motor, a circular saw blade operatively connected to the motor to be driven thereby, a safety guard connected to the housing for enclosing the portion of the saw blade, the base plate upon which the above parts are mounted and which is adapted to engage upon the surface of a workpiece to be sawed, and a bracket for attaching the base plate to the housing. One end portion of the bracket is secured to the housing and the opposite end thereof is pivotally connected to the base plate such that the base plate can pivot about an axis within the plane of the saw blade for adjustment of the angle of the cut. The base plate joins the bracket by fastening means at the portion intermediate the ends of the bracket after the base plate is set at a desired angle with respect to the saw blade.

Abstract: A saw table for a compass saw formed particularly as a hand-held power tool, has a table plate extending so that a compass saw is located under the table plate and a saw blade extends upwardly beyond the table plate and a protecting element associated with the table plate and arranged so that from a space above the table plate the protecting element overlaps the saw blade.

Abstract: Saw guide for a power-driven circular hand saw machine or jig saw machine having a base plate (1), a saw blade (4) extending through the base plate (1), a driving motor (2) and a handle (6) with operating switch (7) for the driving motor (2), which saw guide consists of a bar member (13) provided with a graduation and attachable to the base plate (1) of the machine perpendicular to the base plate (1) and of a gauge member (14, 33), which gauge member (14, 33) is shiftable along and fixable on the bar member (13) by means of a sliding member (15), which is provided with one or more indicators (17-21) for the graduation on the bar member (13), which bar member (13) is adapted in use with one end (13a) to be fixed to the base plate (1), whereby means are present for compensating a possible deviation between saw blade (4) and longitudinal axis of the base plate (1), which means can be present either at the connection between the end of the bar member (13) to the base plate (1) and/or the gauge member (14).

Abstract: A rotatable portable saw has a saw blade 2 which is pivotally mounted with respect to plate 15 so that the position of the blade relative to the plate 15 can be altered to alter the depth of cut. In a modified form the saw blade can be angled slightly to the direction of traverse of the saw so that the width of the cut can be made slightly greater than the width of the blade. In use the saw is traversed across a workpiece with the blade positioned to produce a scribing cut in the surface of the workpiece and then traversed back across the workpiece, after lowering the blade position relative to the workpiece, so that the workpiece is cut right through. In this way, for a given directional rotation of the blade, the blade can be made always to approach the surface being cut so that splintering of the workpiece is substantially reduced or eliminated.

Abstract: A device is described for facilitating repeated cuts with a portable hand-held power saw. The device employs relatively slideable guides for guiding the saw through a cutting path. The saw is attached to one of the sliding guides in a manner such that the saw shoe lies very close to the work-piece surface and is offset from the relatively slideable guide, thereby avoiding substantial reduction in the depth of available cut of the saw.

Abstract: A holder for a portable electrical cutting instrument having a cutting tool, the holder comprising a base plate having a planar bottom surface, an aperture in the base plate through which a cutting tool projects, means for clamping the cutting instrument above the aperture, first and second angular adjustment means secured to the top surface of the base plate on each side of the clamping means, a rigid harness interconnecting the first and second angular adjustment means with the clamping means for unitary movement therewith in angular planes of adjustment, whereby to provide tilting of the cutting instrument at least 45.degree. in two directions from a plane vertical to the base plate, an elongated straight edge guide having a bottom surface coplanar with the planar bottom portion of the base plate, means for moving the edge guide to a desired position of adjustment relative to the cutting tool and parallel to the angular planes of adjustment.

Abstract: A saw guide for guiding a hand powered saw to make a straight cut at any predetermined angle, the device including a solid guide bar and a saw base pad, to slidably fit over the guide bar, comprised of a different material than the guide bar itself, with the material selected to reduce sliding friction between the guide bar and the base pad.

Abstract: The invention is directed to an arrangement for cutting a workpiece with a portable tool such as a circular saw, router or the like and includes a supporting structure and a pair of elongated vise members mounted on the supporting structure. The vise members are disposed in side by side relation to each other and define a substantially smooth upper surface upon which the workpiece can be placed. At least one of the vise members is mounted on supporting structure so as to be movable relative to the other one of the vise members. An elongated track member defines the cutting path and is adapted for insertion between the vise members. A clamping arrangement is included for adjusting the vise members with respect to each other to clamp the track member therebetween. An elongated workpiece guide arm is pivotally mounted to the track member for angularly positioning the workpiece in the path defined by the track member.