Abstract: An adjustable miter attachment for use with a saw table consists of a miter slot bar which can be inserted into a miter slot in a saw table, the miter slot bar having a circular miter gauge attachment portion with a first axis therethrough; a circular adjustable miter gauge with a second axis therethrough engaging the circular miter gauge attachment portion for stepwise rotation upon the miter gauge attachment portion and the first axis coinciding with the second axis; and a locking member adapted to lock the adjustable miter gauge to the miter gauge attachment portion at each step of rotation. The miter gauge is adjustable in fine increments to produce various angles of the miter fence relative to the table top. The miter bar is adjustable for various slot widths in the table top.

Abstract: Auxiliary drafting instrument combination applicable to digital board, including a base seat formed with at least one pivot hole; a compass having a pivot seat for pivotally connecting two legs, a bottom end of one of the legs being snugly pivotally fitted in the pivot hole of the base seat, the other leg being connected with an electronic pen; and a subsidiary ruler one end of which is pivotally connectable on the base seat. By means of the combination of the base seat and the compass, a circle can be input on the digital board or by means of the combination of the base seat and the subsidiary ruler, an oblique line can be input on the digital board.

Abstract: A gauge device and the associated method of using the gauge device to set the cut angles of a carpenter's mitering tools. The device includes a handle that has a longitudinal axis. A first arm is pivotably connected to the handle. The first arm has at least one straight edge. The straight edge of the first arm creates a first angle relative the longitudinal axis of the handle. A second arm is also pivotably connected to the handle. The second arm has a straight edge that creates a second angle relative the longitudinal axis of the handle. A spanning mechanism is provided that selectively maintains symmetry between the first angle of the first arm and the second angle of the second arm. The second arm is selectively detachable from the spanning mechanism and is movable to a retracted position. The second arm is retracted when the gauge device is used to set the cutting angle on a mitering tool.

Abstract: An auxiliary appliance, known as a mitering device, for setting the cutting angle in miter-cutting operations prior to the cutting proper, comprising two arms (1, 2), which are pivotally interconnected by means of a hinge, each one of said arms having at least one orientation face, and an angle-indicating means (4), which is connected to the arm-interconnection hinge via a gear mechanism (5), said gear mechanism being adapted, upon relative pivotal motion of the arms, to transfer essentially half of said pivotal motion to the angle-indicating means relative to the arms.

Abstract: A semi-circular protractor is provided at a center of circle with a through hole to which an auxiliary ruler having a length close to a diameter of the protractor is detachably and rotatably attached. With the auxiliary ruler, the protractor may be used to measure angles on a plane and on a three-dimensional body and to draw different angles. The protractor with the auxiliary ruler is designed for children to more easily understand the meaning of “angle” and to learn to use angles.

Abstract: A laser protractor comprising two laser pointers fixed in a body to point exactly 90° apart in the same plane and a third laser pointer mounted on a movable arm rotatable about an axis perpendicular to the intersection of the first two laser pointers (as extended). The laser protractor includes leveling bubbles and degree scales on the body permitting the protractor to be accurately positioned with both fixed lasers in a horizontal plane, in a vertical plane or in any other plane as required. The laser protractor, because of its simple rugged construction, can be made inexpensively with simple off-the-shelf pointers, each battery powered with inexpensive batteries.

Abstract: A drawing tool comprising a protractor portion at one end and an elongated radius arm portion extending therefrom, with a pivot disc rotatably mounted in the tool, and an adjustable radius indicator slideably mounted in the radius arm portion, the pivot disc having an open circular pivot point and the adjustable radius indicator having means for automatically resisting unintended indicator movement.

Abstract: A geometric construction device forms circles or arcs with a marking instrument and simultaneously measures angles. The device includes a radius arm and a rotatable member. The radius arm includes a means for receiving the marking instrument and a disc having a pivot point and being rotatable about the pivot point. The disc is used to attach the rotatable member to the radius arm. The rotatable member in combination with the radius arm forms a 360° protractor. The rotatable member has a plurality of radius holes in it for receiving the marking instrument. These radius holes may be used to form circles or arcs with the radius being less than or equal to the radius of the disc. The 360° protractor is capable of measuring degrees between 0° and 360° while circles or arcs are being formed.

Abstract: An adjustable squaring tool for measuring and marking angles includes a pivot arm pivotally coupled between first and second sections of a main member. The pivot arm having a graduated arcuate measurement arm extending from the pivot arm through a channel in the main member. The pivot arm having a cylinder coupled to an end of the pivot arm. The main member includes a drum passing through the cylinder. The cylinder has a plurality of radially spaced apertures corresponding to the gradations of the measurement arm. The drum includes at least one spring biased bearing positioned for engaging apertures in the cylinder as the cylinder rotates around the drum. A locking assembly is provided for clamping the pivot arm between the first and second sections of the main member to lock the pivot arm relative to the main member. In an embodiment the apertures are spaced for adjusting the tool in one degree increments between 10 degrees and 90 degrees.

Abstract: The invention relates to a measuring device comprising two rod elements which can be pivoted about a common axis of rotation and form the sides of an angle and whose angular positions towards each other can be detected electronically. The device also comprises a calculator which in accordance with a set angle calculates the distances along straight or curved lines extending between the points defined by the rod elements, as well as a display unit which displays the set angle or the distances detected. Said measuring device can also be used as electronic calculator.

Abstract: A device for generating angles has a ruler-shaped basic rail having a first guide extending in a longitudinal direction of the basic rail. A stop rail is arranged in the first guide of the basic rail and is rotatable and slidable into different positions relative to the basic rail and securable in the different positions. The stop rail has an underside provided with depressions positioned at an acute angle to one another and forming a star-shaped arrangement. The basic rail has a projection that engages the depressions.

Abstract: A miter gauge and method which provides substantially improved resolution in setting the miter angle without adding mechanical complication to the miter gauge mechanism compared to a conventional gauge configuration. The gauge includes a rectangular guide bar which slidably fits within the conventional guide groove of a cutting tool. The guide bar includes an elongated bar and is provided with a first reference pin hole aligned with the center axis of the guide bar for receiving a reference pin (F) held at a known distance of 5 inches from a pivot point on the bar. A slotted semi-circular frame is pivotally mounted to the top surface of the guide bar to pivot about the fixed pivot point on the guide bar. The guide frame includes a planar guide surface or fence against which the workpiece is held as it is moved into the cutting blade of the tool.

Abstract: A sighting assembly for providing a reference laser beam in the course of connecting pipe segments to each other includes an elongate body in which a laser pointing course is received and which is pivotally engaged at its front end to an straight edged arm. The body may further include a magnetic compass and a level assembly, both proximate its rear end, to provide a visual indication of the azimuth and inclination thereof. These are achieved by an azimuth ring on the compass projecting into lateral cutouts in the body for manipulative convenience. In one example the arm supports two spaced posts, each including spaced projections for contacting the pipe segment, and when the arm is collapsed below the body for storage the posts are received in the cutouts.

Abstract: An angle measurement tool in which the assembled components result in only two moving parts that are pivoted relative to each other and wherein the pivot axis is the geographic center of the angle measurement component and wherein a miter joint angle, the correspondent actual angle, the complementary angle of the actual angle and the supplementary angle of the actual angle can be read simultaneously.

Abstract: A multi-purpose measuring tool has an elongate base and arm pivotally connected at rounded ends thereof in an angularly variable relation to perform multiple functions, including measuring inclines, measuring corner angles, measuring distances, use as a square, use as a bevel gauge and use as a torpedo level. A retractable measuring tape housed within the arm has a terminal finger gripping end adapted to be pulled away from the arm and removably attached to a distal end of the base. The measuring tape is dual purpose in that one side of the tape is used for determining the angle of the arm relative to the base to perform some of the above functions, and the other side of the tape is used for traditional linear distance measurements. The tool's base includes a “vertical” bubble level and the arm includes a “horizontal” bubble level to perform some of the above functions.

Abstract: An improved measuring instrument for use with drawings employing different scales with indicia thereon; wherein, the measuring instrument includes a pair of elongated first and second instrument member arms having top walls and bottom walls and having opposite ends wherein one pair of ends are adapted to be releasably and pivotally connected to one another. The measuring instrument further includes a rotatble ratchet connection assembly associated with the first and second instrument member arms for captively but releasably engaging the first and second instrument member arms in both an L and an inverted L configuration. The tops walls of the first and second instrument member arms having beveled edges with indicia thereon, for preventing the indicia from engaging the measured or drawn surfaces when in use; and the bottom walls of the first and second instrument member arms having inclined planes with indicia thereon for preventing the indicia from engaging the measured or drawn surfaces when in use.

Abstract: An adjustable measuring device, including two segments pivotally joined at one end and having a measuring arc therebetween, at least one of the segments having an extending member capable of extending across the pivotal joint. The measuring arc provides the measure of angle between the two segments. Inner corners can be measured by placing the two segments against the surfaces defining the inner corner and reading the measuring arc. By extending at least one of the extending members across the pivotal joint, the angle of outer corners can also be measured in a similar manner.

Abstract: A tool (10,10',10") for forming and applying an adjustable, selected angle to one or more pieces (8) of building material such as sheet rock, plywood, paneling or the like is shown comprising a first leg (12,12',12") having a longitudinally extending slot (34,54) pivotably attached to a second leg (20) with a connecting link (30) pivotably attached to the second leg and slidably and lockably attached in the slot (34,54) of the first leg (12,12',12")

Abstract: An angle measuring device comprising two legs, a hinge supporting the legs turnably relative to one another about a common axis, at least one rotor, drive unit driving the rotor rotatably about a rotary axis coincided with the turning axis, reference points associated with the legs, at least one reference mark rotating together with the rotor and passing the reference points over a rotary path, the hinge having a central bearing part which is fixedly connected with one of the legs, and a bearing receptacle provided for the other of the legs and arranged concentrically to the turning axis.

Abstract: Labeling equipment alignment tooling for properly adjusting the components of the label transfer system of rotary labeling equipment including a pallet timing plate, a pallet centerline locator, a gripper timing protractor, and a pallet measuring tool.

Abstract: A Multifunction Layout Tool capable of performing the functions of an adjustable square, adjustable T-square, try square, combination square, protractor, angle duplicator, depth gauge, rip gauge, rafter-stair layout tool, and compass is disclosed. The tool comprises a generally T-shaped squaring base, mounting an elongated sliding rule. The base is comprised of a body defining a central flared channel to receive the rule and a pair of squaring arms extending from the body, defining a squaring edge along an end of the base, perpendicular to the channel. The rule is disposed in and extends out of the channel, between the squaring arms. The rule is a blade having a rounded end, a square end, and a central longitudinal slot. A fastener anchored to the base, extending through the rule slot, maintains the rule within the channel. Protractor indicia disposed within the channel and corresponding vernier indicia on the rounded end of the rule measure disposition angles of the rule when the rule is fully extended.

Abstract: Device for positioning and orienting a boat on a navigational chart by data supplied by a communication via satellite (Global Positioning system), more commonly designated G.P.S., comprising two superposed disks, one serving as lower protractor (D1) provided with a North mark, the other as upper reader (D2), connected in their rotation center by an eyelet (24), two positioning rulers (R1, R2) punched by a longitudinal central aperture (4,5) and present on their edges a tenon which allows them to slide freely, each one in a mortised slide provided on each disk. During the positioning on the chart, the two disks are blocked (D1, D2) one against the other, the lower disk (D1) such as its North mark are placed in direction of the chart, the two rulers (R1, R2) are blocked perpendicularly one towards the other but with free slide. The disks are unlocked (D1, D2) during the orientation, and the upper disk (D2) can pivot with the upper niler (R2) which is used as orientation ruler.

Abstract: An inclinometer for providing two different, direct readings corresponding to the angle of inclination of a worksurface includes a pair of parallel gauging surfaces engageable with the worksurfaces in first and second distinct positions. The inclinometer includes a body which defines the gauging surfaces, and a pointer is mounted to the body and is biased toward a predetermined orientation when either gauging surface is placed on the worksurface. The body carries two differently calibrated scales, one of which is oriented so as to interact with the pointer when a first one of the gauging surfaces rests on the worksurface and the other of which interacts with the pointer to provide a second reading when a second one of the gauging surfaces is placed on the worksurface. The scales may be calibrated to provide an angle reading and a pitch reading, and are preferably applied to a cover plate which overlies a cavity defined by the body within which the pointer is pivotably mounted.

Abstract: An all-in-one drawing apparatus has a protractor integrated with horizontal and vertical rulers on a drawing board. The vertical ruler has a pen holder adapted to move and scribe within the vertical ruler. The vertical ruler can pivot according to measured angles on the protractor portion.

Abstract: A self-adjusting accessory for a table saw that includes a guide for sliding in the guide groove of the work supporting table of a table saw and which is biased against the edge of the guide groove which is closest to the cutting blade. The guide bar is used in conjunction with the plurality of table saw fixtures such as a miter gauge, an alignment gauge and a stop gauge. The alignment gauge also forms part of apparatus for carrying out a method of verifying the straightness of the arbor for the cutting blade, the alignment of the arbor relative to the guide groove of the work supporting table and the flatness of the cutting blade. The invention also includes an apparatus for adjusting the alignment of the arbor relative to the guide groove of the work supporting table.

Abstract: The present invention herein called "LABEs", comprises a manipulative for assisting students in the visual understanding of the relationships of all angles in a rectangle, triangle, or other such geometric shapes relative to their side lengths, thus allowing the student to prove theorems used in the teaching of geometry. The manipulative further comprises a disk having indicia representing a 360 degree compass, the disk having a first fixed leg, bearing indicia in units of length, extending from the disk at a point adjacent the zero degree indicia mark, and a second leg, having a sleeve portion, which is pivotally attached to the center of the disk by a snap grommet, the sleeve portion being capable of accepting the fixed leg of a second LABE in a longitudinal, adjustable manner therein.

Abstract: The present invention discloses a folding framing square and layout tool which has an elongated base having a channel and two faces. Pivotally attached to the elongated base is an arm which opens up to a preset angle which is preferably ninety degrees (90.degree.) and closes into the channel thereby taking up a limited amount of room. At the end of the elongated base opposite the pivoting point there is placed a tab which allows the user to layout a preset distance for marking the location of studs. The preset angle of the arm with respect to the elongated base is adjustable and correctable. Linear gauges are placed on both edges of each of the arm and the elongated base. Additionally, pitch gauges are placed on one end or both of the arm and elongated base that indicate a pitch based upon the intersection of either of the arm or the elongated base across the pitch gauge. An angle marker is placed on the pivoting point to show the angle of the arm with respect to the elongated base.

Abstract: A mini-drafting machine that is structured so that it can be guided horizontally and vertically along a flat surface, such as a piece of paper. Horizontal, vertical and diagonal lines, as well as different sized arcs and circles, can be drawn upon the flat surface. Different sized geometric shapes can also be made upon the flat surface with built-in templates. The lengths of the vertical, horizontal and diagonal lines can be measured, while the angle of the diagonal lines can be determined.

Abstract: A protractor is disclosed that reduces the time to teach students how to measure and understand angles, and significantly improves overall student comprehension of angles. The protractor comprises two generally flat members each having a straight edge portion radial to a pivot point to which the members are rotatably attached such that the straight edges define an open sector area having an angle formed by the two edges, one member having angle indicia on a semi-circular portion thereof, and the other member having an indicator portion that intersects the angle indicia to enable the angle defined by the two straight edges to be measured. The protractor offers a significant increase in convenience in measuring and drawing angles.

Abstract: A level angle gauge is used to capture an angular measurement on a structure. The level angle gauge includes an elongated body structure, a leveling element connected to the body structure, an arm structure pivotally connected to the body and an arm lock mechanism that locks and unlocks to allow and inhibit pivotal movement of the arm structure. The body structure has opposite sides and a reference surface extending therebetween. The arm has an arm surface that is in a common plane with the reference surface in a first position. The arm lock mechanism being dimensioned to be less than the width of the reference surface. The body structure is formed as a web having opposite flange, one of which is foreshortened. The arm structure includes a pair of parallel arm members such that the web of the body structure interposed therebetween. A connector piece joins the arm members, and a notch is provided in the web to receive the connector piece when the arm structure is in the first position.

Abstract: A level tool with laser light alignment capabilities including a straight rigid first rail having a leveling vial coupled thereto; a laser light source coupled to the first rail and with the laser light source transmitting a laser beam that is longitudinally aligned with the first rail to a remote location for use in alignment operations; and an electrical power supply coupled to the first rail for providing electrical energy to the laser light source for operation.

Abstract: An adjustable square device for scribing cut lines on large flat panels. The device has as a base member a straight, flat, rectangular bar. Pivotally connected at one end to the base member is an angularly adjustable pivot arm, also comprising a straight, flat, rectangular bar having an arcuate extension on one where such pivot arm is connected to the base member. The arcuate extension extends through a slot in the base member and is marked in degrees to form a quarter circle protractor integral with the pivot arm. Such protractor contains therein an arcuate groove, parallel with the outer edge of such arcuate extension and spaced inwardly therefrom. An adjustable stop extends through said groove and through the base member. The arcuate extension is pivoted on a pin affixed at the end thereof to the base member. Releasing the adjustable stop permits the pivot arm to be angled relative to the base member to the desired degree as indicated on the protractor.

Abstract: The invention relates to a method for measuring at least one step of a stair, wherein the riser and tread of the or each separate step are determined, characterized in that at least two steps of the stair are provided, in a corresponding manner, with a reference point, whereupon a pin is positioned in each reference point, which two pins cross in a junction in such a manner that of each pin the length between the reference point and the junction is known, whereupon in the plane defined by the pins the angle is recorded that each of the pins includes with a reference line, which reference line includes a known angle, lying in the plane, with the vertical, and to an assembly for carrying out such a method.

Abstract: The body of the gage is in the form of a channel with web and flanges. The web and flanges define three planar surfaces with the flange surfaces at a right angle to the web surface and parallel to each other. The edges define an orthogonal structure. An angle gage movably mounted on the body defines angles with respect to one of the orthogonal surfaces and a height gage on the body measures distances with respect to the same orthogonal surface.

Abstract: A drawing implement box includes a first ruler section, a second ruler section which has a scale of angles thereon, and a positioning member for securing the first and second ruler sections together yet allowing relative rotational movements therebetween for measuring angles. Each of the first and second ruler sections has a compartment therein for receiving a drawing implement goods.

Abstract: A combination tool for craftsmen including a square, a level, a plumb indicator, a slope measurement device, a linear scale, and a straight edge. The tool includes a pair of elongated members joined at a hinge with a protractor scale for measuring the angle between the members. The hinge comprises a sturdy clevis arrangement which allows a central fastening assembly to be tightened to provide friction in order to set the angle between the two arms without other locking structure. A series of markings along one edge of each of the members provides a linear scale. Each of the elongated members have an I-beam construction with a central web and a pair of side flanges. A number of elongated cutouts are provided for handles. A second series of cutouts are provided to position a plurality of spirit level indicators. Some of the spirit level indicators are aligned along the longitudinal axis of the members, while others are positioned transverse to the longitudinal axis.

Abstract: According to the present invention there is provided a protractor including a main body surrounding a circular aperture and having a scale of angular measurements thereon, and a rotary cursor mounted on the main body for rotary movement about the center of the circle of the circular aperture. The rotary cursor includes a part-circular center portion engaged in the circular aperture and rotatable within the aperture, and a radial arm portion extending radially outwardly from the center portion to the scale. The center portion of the rotary cursor is generally in the shape of a sector of a circular disc bounded by the reference side edge and the further side edge, and extends through about three quarters of a circle. The arm portion and the center portion of the cursor are formed as an integral unit.

Abstract: Miter slot bar construction comprising a pair of elongated body members arranged in parallel interengaged position with resilient parts to cause the members to engage the sides of a miter slot uniformly for guiding action.

Abstract: A drawing instrument including two rulers each having a head portion, a circular protrusion formed on one of the head portions, and a circular recess formed in the other head portion for slidable engagement with the circular protrusion, the rulers are guided to rotate relative to each other by the slidable engagement between the circular protrusion and the circular recess. The head portions can be easily coupled together without additional tools or without additional coupling devices.

Abstract: A doorframe template apparatus is provided which includes a T-shaped first straight edge member which includes a straight top member and a straight middle member extending perpendicularly from a middle portion of the top member. The straight top member includes a top flange member and a bottom flange member at right angles to the straight middle member. A second straight edge member is connected to the straight middle member by a lockable pivoted joint. The lockable pivoted joint enables the T-shaped first straight edge member to be adjusted with respect to the second straight edge member at angles that conform to respective doorframe angles when the straight top member of the T-shaped first straight edge member is placed against a doorjamb, and the second straight edge member is placed against a horizontal doorframe member. The straight middle member includes a first aperture.

Abstract: A recording goniometer for affixation to an area surrounding a flexing joint. The goniometer measures and records the flexibility or extent of limb movement about a joint and further permits separate comparative recordation of joint movement as a determination of healing progress. The goniometer comprises extension elements distally connected to permit angular separation. For accuracy in measuring the extent of angular separation, the extension elements are also connected with a geared movement. In use, each extension element is removably attached to respective parts of the limb which extend from the joint, with the area of attachment proximally covering the joint. A platen member is integrated with one of the extension elements and a scribing element is inegrated with the other extension element.

Abstract: A measuring instrument includes a casing served as a rule, an angular level secured in a central portion of the casing having a rotational protractor rotatably mounted in the level for measuring any angles, a horizontal gauge provided in a right side portion of the casing for checking a horizontality, a vertical gauge formed in a left side portion of the casing for checking a verticality, a reelable plummet provided in the casing and protruded outwardly for checking a vertical line or plane, a measuring tape wound in the casing and pulled outwardly for measuring a length, and a protractor template rotatably secured on the casing having a plurality of guide slots of many geometric shapes punched in the template for guiding the drawing of many geometric shapes and having a plurality of angular graduations circularly formed on a pivotal portion of the template also for measuring planar angles, so as to provide a measuring instrument having multiple measurement uses.

Abstract: An angle indicating instrument for indicating an angle to be used in the cutting and subsequent joining of pieces of material is disclosed. A first arm and a second arm of the angle indicating instrument are positioned so as to engage the angle indicating instrument in an engaged angle, which is the angle between the two pieces of material to be joined. The indicated angle is a calculated angle and is calculated based on the engaged angle.

Abstract: An adjustable angle instrument for high precision craftsmanship is configured from a pair of similar metal sector parts, each having a sector shape with a wide double flange along a straight edge. The two sector parts are accurately pivoted together in an apex region. Each flange is made to have accurate surfaces on its outer surfaces on which the instrument may be stood in a vertical position or laid horizontally on a flat surface such as a saw table. The flanges may be set to any angle between 45 and 90 degrees as indicated by a calibratable hairline cursor, and the angle may be captured by locking the two sector parts together by tightening a knurled brass knob. One of the sector parts is also provided with an edge which is accurately machined at 90 degrees relative to the flange and thus may be set to any angle between 0 to 45 degrees relative to the other flange, providing the instrument with a total range of 0 to 90 degrees.

Abstract: A map reading and plotting instrument for use with a scaled map having a declination diagram. The instrument includes a first transparent disc with a scale provided adjacent its periphery and a second transparent disc coaxially aligned with the first disc, the second disc having a cut out portion. A hollow securing element is provided connecting the first and second discs and a center of each of the discs for rotative movement independent of each other. At least one arm is provided in a flat rectangular configuration with a scale provided thereon. The arm is disposed between the first and second discs and secured to the securing element connecting the two discs and the arm for pivotal movement independent of the first and second discs. A sight-slide subassembly is provided pivotably connected to the second disc at a second disc sight-slide pivot location. The sight-slide subassembly includes a sight and slide scale of linear measure extending from a first location to a second location of the subassembly.

Abstract: A layout for a static structure, such as a building or the like, is defined using a plurality of triangles and a plurality of tethering cables. The layout is effected by measuring from a property line for a starting point and for a length of a base line. The triangles and tethering cables are located and connected to define at least one angle, and further angles and lines are measured from this first angle.

Abstract: A measuring instrument includes a pair of pivotally connected legs that can be placed on a circular protractor. The protractor contains three separate scales one of which will translate angular measurement provided by the pair of adjustable legs directly into a reading for setting the angle of a saw blade in an adjustable miter saw.

Abstract: A protractor comprising a generally flat protractor disc having a straight edge portion and a semi-circular portion. An arm member is pivotally secured at one end to a central section of the straight edge portion and overlies the front surface of the semi-circular portion at the other end. The arm member has a straight drawing edge that aligns with angle indicia on the semi-circular portion. An arcuate member extends outwardly from the front surface of the semi-circular portion. The arm member has recess in a rear surface thereof that receives the arcuate member therein. The relationship between the depth of the recess and the distance that the arcuate member extends from the front surface of the semi-circular portion is such that the arm member is spaced from the indicia on the front surface.

Abstract: An improved miter gauge includes a gauge body and a lead arm pivotally coupled together. The lead arm is provided by a substantially rigid member which includes a plurality of slots formed in a length direction of the member which define adjoining side wall portions of the rigid member. A plurality of threaded bores are provided, each through one of the side wall portions, in communciation with one of the slots. A plurality of set screws are provided in the threaded bores and are adjustable to project out of the rigid member or to span the slot and contact the opposing side wall portions of the member so that overall width of the rigid member of the miter gauge can be adjusted to fit the width of a guiding slot on a piece of power equipment.

Abstract: By mounting a longitudinally extending blade with a mounting block for pivotal movement about an axis perpendicular to the longitudinal axis of the blade, in combination with a distance measuring meter mounted to measuring engagement with the movable blade, a precision squareness measuring gauge assembly is achieved for providing highly accurate measurements of the angular relationship of one surface to a reference surface. In the preferred embodiment, the precision measuring gauge assembly also incorporates pivot limiting means for controlling the arcuate distance through which the blade is able to pivot. In this way, the entire arcuate travel distance of the blade is accurately measured and displayed on the meter, thereby providing a direct accurate measurement of any desired surfaces.