Abstract: A positioner positions a guide ruler relative to a workpiece that is adjacent to the guide ruler while more stably retaining the guide ruler at the locked position without causing interference with a cutting operation. A positioner that positions a ruler body relative to a workpiece includes a contact member to be in contact with an edge of the workpiece and extendable along the edge of the workpiece, a support supporting the contact member in a manner rotatable on a lower surface of the ruler body, and a position retainer that retains the contact member at a rotational position.

Abstract: A track square and a method of use thereof. The track square is adjustable to change an angle at which a guide rail is engaged therewith. A user is able to make a cut with a track saw that is oriented at right angles to the edge of the wood but is also able to make cuts at angles of less than ninety degrees relative thereto. The guide rail is secured to a rotatable turntable on the track square by an engagement mechanism. The turntable is rotated to the desired angle utilizing an angle setting mechanism and is then locked at the selected angle by a locking mechanism. The engaged guide rail and track square are positioned on the piece of wood to be cut and the track saw is moved along the guide rail to cut the wood at the set angle.

Abstract: A system for monitoring core body movement comprises a sensor device for collecting a data set representing a plurality of core body movements over time from a monitoring device; a processor for determining a plurality of risk scores from the data set; and an output device for indicating the risk scores.

Abstract: An angle sensing device including a first object, a second object, a magnetic field source, and a first magnetic sensor is provided. The second object is adapted to be rotated with respect to the first object, so that an inclined angle of the second object with respect to the first object is changed. The magnetic field source is connected to the second object. The first magnetic sensor is connected to the first object, and configured to sense a magnetic field generated by the magnetic field source. When the second object is rotated with respect to the first object, the magnetic field sensed by the first magnetic sensor changes, so that an output signal of the first magnetic sensor corresponding to the magnetic field changes.

Abstract: An extension is configured to be removably coupled to a base of a bench top power tool or work bench by a connection such that an upper surface of the extension is coplanar with a work surface of the bench top power tool or work bench. The extension is configured to be movably coupled to the base to support workpieces of varying shape and size that do not fit easily on the work surface.

Abstract: A framing T-square protractor apparatus includes a first rule element having first and second edges, a surface, and a length of about 3 ft between the first and second edges; a second rule element having first and second edges, a surface, and a length of about 5 ft between the first and second edges, the second rule element being pivotally connected to the first rule element midway between the first and second edges of the first rule element; and a semi-circular element extending between the first and second edges of the first rule element to form an 180 degrees arc with 0 to 90 degrees angle indicia on each half, the semi-circular element being connected to the first and second edges of the first rule element and being adapted to movably receive the second rule element for sliding along the semi-circular element.

Abstract: A wall frame marking tool comprises a pair of arm members, a pair of sliders, and a pair of retainers. The arm member comprises a base, a slider receiver and a pivot portion. The base is a single elongated flat bar. The slider receiver comprises edge beading, a slider receiver, a plurality of notches, a straight line beading, and a slot. The pivot portion comprises a pivot area having two bumps and a plurality of grooves, a triangular-shaped beading, a straight line beading, and edge beading. The slider comprises a base, edge beading, two lips, a straight line beading, and a positioner. The retainer has a bulge, two legs, and two notches. Two arm members are pivotally connected and jointed by overlapping their pivot areas by that two bumps of one arm member are inserted into two of the grooves of the other arm member.

Abstract: A dental implant angle measurement device for measuring angular difference includes a reference member that can be engaged with a reference dental component. An elongate member is attached perpendicular to the reference member and a measuring member is movably positioned along the elongate member. The measuring member can be aligned with a target dental component and further includes a base member and an angular indicator. The angular indicator can have gradations and indicia to indicate an angular difference between an axis passing through the reference dental component and an axis passing through the target dental component that the measuring member is aligned with. The target dental component is positioned in the mouth of the patient or in a cast. A stopping member is also positioned with the elongate member to restrict movement of the measuring member in relation to the elongate member.

Abstract: A multi-positional combination instrument including a graduated member received in an interstice formed between elongate members of a positioning arm, wherein the positioning arm is axially and angularly positionable, and the graduated member includes at least one substantially planar edge and markings formed in or on a working face thereof.

Abstract: A segmented measuring assembly and pivot connection system for the segmented measuring assembly. Embodiments of the measuring assembly comprise a first and second ruler section, each ruler section having a section length, a section width and a section thickness, each ruler section further comprising a section proximal end, a section distal end, and a pivot connection system connecting the distal end of the first ruler section and the proximal end of the second ruler section whereby the second ruler section pivots in relation to the first ruler section about a pivot connection assembly. In some embodiments, the ruler sections have a plurality of section through holes extending through the section thickness along the section length. In some embodiments, the ruler sections have curved ends whereby there is no overhang of the curved ends when the ruler sections pivot in relation to each other.

Abstract: A digital T-bevel has a blade with a slot along a part of its length and a handle having an end that is mounted both to move along the length of the slot and to pivot with respect to the blade longitudinal axis. The handle also includes an encoder to measure the angle of the handle relative to the blade longitudinal axis and the necessary electronic circuitry to convert the measured angle into digital form to drive a display to visually display the numerical value of the measured angle.

Abstract: An angle marking saw guide for marking a plank having a front side that includes a planar marking member including a protractor portion extending upwardly from a flat ruled straight edge portion having a straight edge. A planar reference member includes a rectangular portion a triangular portion extending laterally from the rectangular portion. The triangular portion includes a first angled edge and a second angled edge that meets the first angled edge at a vertex. The marking member is pivotally affixed to the reference member with a fastener disposed adjacent to the vertex. A vertical wall portion depends downwardly from the front edge and engages the front side of the plank so as to maintain the reference member in a fixed angular relationship with the front side. A lip surface extends at an angle from the back edge to facilitate lifting of the reference member from the plank.

Abstract: A multiple gear driver having first and second fixed gears and first and second rotatable gears, the first fixed and rotatable gears located on a first member, and the second fixed and rotatable gears located on a second member, the first and second fixed gears having a common axis so that the first fixed gear drives the second rotatable gear and the second fixed gear drives the first rotatable gears when the first and second member are moved relative to each other.

Abstract: An apparatus for measuring trend and plunge of a geologic line feature and an auxiliary apparatus for measuring trend and plunge. The apparatus for measuring trend and plunge includes a rod operable to be disposed parallel to a lineation, a rotation block connected to an end of the rod and being operable to rotate around a central axis of the rod, the rotation block includes a hinge shaft extending in a direction perpendicular to the central axis of the rod, a plate coupled to the hinge shaft of the rotation block so that the plate is rotatable around the hinge shaft, a protractor disposed on the hinge shaft, and a measuring unit disposed on the plate, the measuring unit includes a compass configured to confirm a direction of the rod, thereby measuring the trend when the plate is horizontally disposed.

Abstract: An adjustable construction square is provided that comprising an elongated blade member and an elongated cross member. An end of the cross member has a contour, and an end of the blade member has a contour. The adjustable construction square includes a clamping jig that enables the construction square to be quickly secured into a desired angular position. The clamping jig includes a clamping device, a wedge device, and an arm that work in combination to secure the adjustable construction square in a desired position.

Abstract: The invention relates to a measuring device of flexible material for the determination of parameters for the production of dental prostheses which combines different functions, including protractor, spacing template, ruler and an option of utilizing a compass-formed modulus shear measuring module to facilitate shearing.

Abstract: A device for measuring anatomic angles with two arms and a fastener for securing them together at one end providing a pivot. One arm has degree markings around the pivot and the other has a marker to indicate the angle between the two. One or both arms have a method for extending and contracting their length. The device is sufficiently small and light to allow ease of portability in a clothing pocket. In a preferred embodiment the arms are made of thin, clear, light plastic to allow ease of portability as well as inexpensive manufacture. In another preferred embodiment the arms are made of metal, or other heat-resistant material, to allow autoclave sterilization for use during surgery. In a further preferred embodiment the method to allow extension and contraction of one or both arms is by affixing thin, tubular, telescoping metal sleeves to one or both arms.

Abstract: A multifunctional ruler and protractor tool with the ability to form and scale a near infinite number of geometric shapes. The tool comprises both a standalone ruler and protractor unit. Rulers are capable of being added to each other successively, creating straight ruler assemblies of virtually any length. The protractor unit can be slid onto a single ruler or a straight ruler assembly containing any number of consecutively connected rulers, and is capable of fastening another ruler to its sides by a quick connect/disconnect mechanism. The protractor component of the protractor unit pivots, allowing for the creation of angles between rulers that are laterally fastened and slidably engaged to it. The sliding lock on the protractor unit can arrest both rotational and translational motion of the protractor unit along any ruler, if it is manipulated to do so. Multiple rulers and protractors can be connected to form both open and closed, regular and irregular, polygons, and other sided geometric shapes.

Abstract: An improved protractor with an adjustable narrow arm comprising, in combination a flat, generally planar body having protractor shape, including an angle indicating scale with protruding scale elements in a curved row, the marker arm pivotally carried by the body to be swung successively over the scale elements, the scale elements spaced apart sufficiently to frictionally maintain the marker in selected angle indicating positions relative to said body.

Abstract: A multifunctional ruler and protractor tool with the ability to form and scale a near infinite number of geometric shapes. The tool comprises both a standalone ruler and protractor unit. Rulers are capable of being added to each other successively, creating straight ruler assemblies of virtually any length. The protractor unit can be slid onto a single ruler or a straight ruler assembly containing any number of consecutively connected rulers, and is capable of fastening another ruler to its sides by a quick connect/disconnect mechanism. The protractor component of the protractor unit pivots, allowing for the creation of angles between rulers that are laterally fastened and slidably engaged to it. The sliding lock on the protractor unit can arrest both rotational and translational motion of the protractor unit along any ruler, if it is manipulated to do so. Multiple rulers and protractors can be connected to form both open and closed, regular and irregular, polygons, and other sided geometric shapes.

Abstract: A multifunctional airway evaluator for orotracheal intubation includes first and second connected elongated arms, movable relative to each other about a pivot axis, a planar plate connected to the first arm and extending upwardly therefrom, and a gravity-operated angular indicator attached to the planar plate. The plate includes a distance scale on its front face, and the distance scale includes a plurality of spaced apart grade lines aligned radially with the pivotal axis and distance parameters associated with the grade lines, each of the distance parameters indicating a distance between the distal ends of the first and second arms when the arms are in a relative position. The gravity-operated angular indicator includes an axial pin disposed perpendicular to the planar plate, a rotating disk pivotally attached to and rotatable around the axial pin by gravity, and one or more angular measurement marker provided adjacent the rotating disk.

Abstract: A multifunctional airway evaluator for orotracheal intubation includes first and second connected elongated arms, movable relative to each other about a pivot axis, a planar plate connected to the first arm and extending upwardly therefrom, and a gravity-operated angular indicator attached to the planar plate. The plate includes a distance scale on its front face, and the distance scale includes a plurality of spaced apart grade lines aligned radially with the pivotal axis and distance parameters associated with the grade lines, each of the distance parameters indicating a distance between the distal ends of the first and second arms when the arms are in a relative position. The gravity-operated angular indicator includes an axial pin disposed perpendicular to the planar plate, a rotating disk pivotally attached to and rotatable around the axial pin by gravity, and one or more angular measurement marker provided adjacent the rotating disk.

Abstract: A knee joint flexure progression meter and system. The knee joint flexure meter has an elongated progression meter bar with a major axis, an upper surface, a lower surface having a longitudinal recess therein, and a plurality of spaced apart indicia disposed on the upper surface thereof. A crossbar is disposed perpendicularly to the progression meter bar major axis. The crossbar is both adjustable and removable with respect to the progression meter bar. The crossbar is dimensioned smaller than the recess in the progression meter bar, so that the crossbar can be contained within the recess. A mechanism is provided for containing the crossbar within the progression meter bar for transportation or temporary storage.

Abstract: A digital protractor for measuring angular displacement from a referenced surface includes a substantially congruent pair of pivotally interconnected upper and lower arms, which arms are superposable upon one another. Each arm has a pair of substantially parallel engagement edges extending longitudinally of the arm. One of the arms is engagable along an engagement edge thereof with the reference surface. A capacitive sensor is secured to the lower arm and a digital readout device is secured to the upper arm for operatively cooperating with the capacitive sensor to measure and display the angular displacement from the arm engaging the reference surface to the other arm.

Abstract: A device for measuring anatomic angles with two arms and a fastener for securing them together at one end providing a pivot. One arm has degree markings around the pivot and the other has a marker to indicate the angle between the two. One or both arms have a method for extending and contracting their length. The device is sufficiently small and light to allow ease of portability in a clothing pocket. In a preferred embodiment the arms are made of thin, clear, light plastic to allow ease of portability as well as inexpensive manufacture. In another preferred embodiment the arms are made of metal, or other heat-resistant material, to allow autoclave sterilization for use during surgery. In a further preferred embodiment the method to allow extension and contraction of one or both arms is by affixing thin, tubular, telescoping metal sleeves to one or both arms.

Abstract: An angle measurement tool having two legs joined together about a common axis so that one of the legs rotates with respect to the other to form a desired angle the value of which is read utilizing gears that are housed in said legs in combination with indicia means indicating the degree of rotation of the gears.

Abstract: A digital protractor for measuring angular displacement from a referenced surface includes a substantially congruent pair of pivotally interconnected upper and lower arms, which arms are superposable upon one another. Each arm has a pair of substantially parallel engagement edges extending longitudinally of the arm. One of the arms is engagable along an engagement edge thereof with the reference surface. A capacitive sensor is secured to the lower arm and a digital readout device is secured to the upper arm for operatively cooperating with the capacitive sensor to measure and display the angular displacement from the arm engaging the reference surface to the other arm.

Abstract: An angle measurement tool having two legs joined together about a common axis so that one of the legs rotates with respect to the other to form a desired angle the value of which is read utilizing gears that are housed in said legs in combination with indicia means indicating the degree of rotation of the gears.

Abstract: An all-in-one combination layout tool is provided for marking center lines for spacing studs, marking rip lines, marking cut lines for roof rafters and staircase stringers, and other purposes. The tool comprises a rectangular base plate, an elongate locator bar with a rounded pivot corner, and two connectors to connect the locator bar to the base plate in a variety of configurations. The base plate includes multiple “pivot” points for pivotally connecting the locator bar, two strategically-placed arcuate slots for marking or making angle cuts, and two strategically placed parallel slots for configuring the tool to mark or make rip cuts. Angle markings are provided on two adjacent edges of the base plate, and 1/16-inch markings are provided on the opposite adjacent edges. The base plate is planar and has no enlarged flange or lip that would hinder its use in laying out staircase stringers.

Abstract: A combination measuring tool includes a main body having a first portion having a plurality of first graduations and a second portion having a plurality of second graduations, a transverse bar movably and rotatably mounted on the main body and having a semi-circular protrusion having a plurality of angle scales, a protractor secured to the transverse bar and having a plurality of angle scales, a pivot plate pivotally mounted on the protractor, and a ruler movably mounted on the main body and having a plurality of graduations. Thus, the measuring and drawing angle of the combination measuring tool can be adjusted easily and freely, thereby facilitating a user operating the combination measuring tool to draw marking lines.

Abstract: A digital protractor for measuring angular displacement from a referenced surface includes a substantially congruent pair of pivotally interconnected upper and lower arms, which arms are superposable upon one another. Each arm has a pair of substantially parallel engagement edges extending longitudinally of the arm. One of the arms is engagable along an engagement edge thereof with the reference surface. A capacitive sensor is secured to the lower arm and a digital readout device is secured to the upper arm for operatively cooperating with the capacitive sensor to measure and display the angular displacement from the arm engaging the reference surface to the other arm.

Abstract: A bevel setting tool having a rectangular plate, both sides of which are marked with reference indicia and a moveable fence that slides longitudinally on a stud that passes from the fence through a slot centrally located in the plate and into a locking knob. The fence and knob may be disassembled so that the fence can be positioned on either side of the plate.

Abstract: Provided is a digital angle measuring device, comprising an upper ruler having a first center hole, a lower ruler having a second center hole, a capacitive gate angle sensor, a display portion, a connecting base having a through hole, a rotary axis, a locking knob, and a stop screw, wherein the upper ruler and the lower ruler are connected to the rotary axis via the center holes, the display portion is connected to the rotary axis via the through hole, the locking knob is disposed on the connecting base and connected to the rotary axis, and the stop screw is disposed on one end of the rotary axis. The digital angle measuring device is easily installed and cost-effective.

Abstract: A layout tool is provided for anchoring a layout line, such as a chalk line, in relation to a piece of construction material. The tool (100) generally includes a top plate (102) and a depending plate (106). Angular markings (104) are provided on the top plate (102) to indicate angles, pitches, or the like. The tool (100) further includes an anchor post (110), a spike (108), and a window or opening (112). A construction worker can align the tool (100) with a mark on the construction material by viewing the mark through the opening (112). The worker can strike the plate (106) so that the spike (108) penetrates a side surface of the construction material to secure the tool (100) in the desired position. A chalk line can then be attached to the post (110) and extended a desired length across the construction material in a desired angular orientation by using the markings (104). The chalk line can then be snapped against the construction material to provide a desired layout chalk line.

Abstract: A circular saw alignment system and method, the system having a first longitudinal member securable to a saw arbor and a second member perpendicular to the first member. The first member having one or more locating devices. The locating devices can be bubble indicators or dial indicators located at the first or second end of the second member.

Abstract: A farrier's tool and a method of using the tool for preparing the hoof of a horse to receive a shoe. The tool is, in one aspect, a goniometer used for determining the angle of heel-toe taper when preparing a horse's hoof to receive a shoe. After the angle between the anterior surface of the first phalanx of the foot and the anterior surface of the hoof is determined, the ground-facing surface of the hoof is beveled by means of a trimming tool at an angle determined by the goniometer to reduce uneven pressure on the underlying coffin bone and to balance the tension on the tendons and ligaments in the horse's foot, particularly during locomotion. The method provides, inter alia, means for accurately aligning the hoof capsule with the coffin bone in the hoof.

Abstract: An angle measurement tool having two legs joined together about a common axis so that one of the legs rotates with respect to the other to form a desired angle the value of which is read utilizing gears that are housed in said legs in combination with indicia means indicating the degree of rotation of the gears.

Abstract: Taught herein is a protractor capable of measuring angles within a room and angles related to the intended orientation of molding with respect to the room. Using these angles, the present invention will calculate and display the appropriate angles at which a miter saw must be set to produce mitered joints for the installation of trim and crown molding.

Abstract: A multi-functional carpentry tool includes a base member having a longitudinal T-shaped groove formed therewithin and a rule member. A T-shaped slide member is positioned within the groove and has a threaded aperture formed therewithin. A knob has a threaded stem operatively received within the threaded aperture for selectively securing the base member and the rule member together in frictional engagement maintaining the base member and the rule member in selected positions relative to one another and permitting each of a sliding and pivoting movement of the rule member relative to the base member. Linear measuring scale indicia is provided in each of the base and rule members. Angular measuring scale indicia and a squaring groove is also provided within the base member. A spring biased pin is movably mounted within the knob for defining pivot axis and facilitating arc scribing effort.

Abstract: A precision machinist's square comprises a blade and body joined together at a pivot and a drive train operated by relative angular movement between the blade and the body. Movement of the drive train develops a movement in a dial indicator that is a function of the angle between the body and the blade.

Abstract: A crown molding miter gauge has first and second straight edges extending oppositely tangent from circular members wherein one of the circular members includes a Cartesian reference chart reconfigured as a concentric circular chart, fixed with respect to the first straight edge, and the second straight edge is concentrically rotatable, so that the first and second straight edges may be conformed to a wall corner wherein the second straight edge acts as the horizontal reference of the reconfigured Cartesian chart and an indicator, fixed with respect to the second straight edge, acts as the vertical reference of the reconfigured Cartesian chart.

Abstract: A multi-purpose tool includes a graduated extension pivotably and lockably connected to a leveling extension. The graduated extension includes graduations for measuring length, angles, pitch, or a combination of these measurements. Angles may also be measured with a graduated disc. The leveling extension includes at least one bubble level for checking the horizontal or vertical orientation of the leveling extension. The leveling extension may include graduations for measuring length, angles, pitch, or a combination of these measurements. The tool may be extended such that the graduated and leveling extensions are collinear, having a total length of 16 inches end to end. A multi-purpose tool may be conveniently used to take the place of several separate tools such as a speed square, a T-bevel, and an extended torpedo level. The tool may also allow quick determination of the required distance between wall studs, rafters, and floor joists.

Abstract: A digital protractor for measuring angular displacement from a referenced surface includes a substantially congruent pair of pivotally interconnected upper and lower arms, which arms are superposable upon one another. Each arm has a pair of substantially parallel engagement edges extending longitudinally of the arm. One of the arms is engagable along an engagement edge thereof with the reference surface. A capacitive sensor is secured to the lower arm and a digital readout device is secured to the upper arm for operatively cooperating with the capacitive sensor to measure and display the angular displacement from the arm engaging the reference surface to the other arm.

Abstract: A ruler for drawing or measurement of circles, straight lines, and angles. The ruler body has a longitudinal slot in the middle and parallel with the length of the ruler. A sliding pen or pencil holder is placed within the slot for drawing or measuring. A compass is included in the combinations.

Abstract: A farrier's tool and a method of using the tool for preparing the hoof of a horse to receive a shoe. The tool is, in one aspect, a goniometer used for determining the angle of heel-toe taper when preparing a horse's hoof to receive a shoe. After the angle between the anterior surface of the first phalanx of the foot and the anterior surface of the hoof is determined, the ground-facing surface of the hoof is beveled by means of a trimming tool at an angle determined by the goniometer to reduce uneven pressure on the underlying coffin bone and to balance the tension on the tendons and ligaments in the horse's foot, particularly during locomotion. The method provides, inter alia, means for accurately aligning the hoof capsule with the coffin bone in the hoof.

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 dual line protractor fixed to a central axis which has two housings, each housing having a spool with retractable lines, the housings and spools being rotatably attached to the central axis. The spools and housings rotate independently of each other on the central axis. The lines can be extended from the spools and the tips of the lines are attached to anatomical landmarks on first and second body members. The protractor is placed on a joint between the first and second body members. The lines extend from the spools and housings over degree marks on the protractor. The difference between the degree marks provide the angle between the body members at the joint. The application of the dual line protractor for these measurements is simple and rapid, requiring only a few minutes, so that the range of motion of several joints with several repeat measurements can be performed in a relatively short period of time.

Abstract: A crown molding miter gauge has first and second straight edges extending oppositely tangent from circular members wherein one of the circular members includes a Cartesian reference chart reconfigured as a concentric circular chart, fixed with respect to the first straight edge, and the second straight edge is concentrically rotatable, so that the first and second straight edges may be conformed to a wall corner wherein the second straight edge acts as the horizontal reference of the reconfigured Cartesian chart and an indicator, fixed with respect to the second straight edge, acts as the vertical reference of the reconfigured Cartesian chart.

Abstract: An apparatus for determining the angle between two adjacent objects such as the corner of a wall or the pitch of a roof, and the appropriate angle of a corresponding miter cut. The apparatus includes a base member that is configured in a substantially planar manner. The base member includes a channel for slidably receiving the ends of two support members. The support members are pivotally mounted to opposing angle arms that extend laterally in opposing directions from the base member and function to movably connect the angle arms to the base member and form a pointer thereon. The base member further includes numeric indicia that indicate the angle of the angle arms and the corresponding miter angle cut adjacent to the channel on the base member.

Abstract: A protractor for teaching aid includes a semicircular disk being provided along a curved section with angle marks and along a straight edge with length marks to form a main body of the protractor, and at a center with a locating hole or a locating bar; and at least one indicating strip being provided at two ends at one side with a short bar each, with a receiving hole correspondingly formed behind each short bar, and on one surface along a centerline with a central marker. The indicating strips may be rotatably connected at the short bars or the receiving holes to the locating hole or the locating bar, respectively, or rotatably connected end to end to form a polygon, so that the protractor has not only the function of measuring an angle, but also many other teaching functions.