Abstract: A carpenter square includes a triangular body having a first edge, a second edge, and a third edge, wherein the first, second, and third edges cooperate to define a perimeter edge of the triangular body. A fence is pivoted to the first edge for movement among first, second, and third positions. In the first position, the fence is normal to the triangular body in a first direction. In the second position, the fence is normal to the triangular body in a second direction opposite the first direction. In the third position, the fence is coplanar to the triangular body.

Abstract: An apparatus, in one embodiment, can include a configuration including a plurality of heat generation devices. The apparatus also includes a plurality of thermal sensors respectively, operably connected to each of the plurality of heat generation devices, wherein each thermal sensor of the plurality of thermal sensors includes a respective output terminal configured to provide a voltage representative of the temperature of the respective heat generation device. The apparatus further includes an output circuit configured to output the highest temperature information among the heat generation devices. The output terminals of the plurality of thermal sensors are tied together. A corresponding method is also discussed.

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 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: 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 flat transparent overlay for measurement of equine foot x-rays employs a flat lower edge for alignment with a ground surface and an anterior edge angled to approximate a hoof distal wall. A first sight ring positions the tool over a tip of an image of a third phalanx. Six interrelated scales are provided for measurement of the palmar cortex, distal sole thickness, break-over distance and coronet band to extensor process distance, and in conjunction with a second site ring, center of rotation and palmar sole thickness. A first protractor element is centered posterior on the first sight ring for measurement of the palmar angle. A dual scale extends from the angled anterior edge portion with a measurement line for measurement of the hoof-lamella zone. A second protractor element is posterior to and centered on the second sight ring for measurement of a pastern angle.

Abstract: A tool (100) for use in the construction of a stairway includes a height adjustment section (117) for measuring the height above a stair tread and a second measurement section (200) pivotably attached to the height adjustment section (117) for measuring an angle (?, ?) between the tool body (101) and the straight edge (213) on the second measurement section (200). The tool body (101) includes vertical clamp brace (103) and horizontal clamp brace (110) for attaching the tool body (101) to a stair tread.

Abstract: A laser, square, protractor kit has a laser marker with a housing. The housing has a first positioning member. The protractor has a base with a second positioning member which cooperates with the first positioning member to position the housing on the protractor base. The protractor base also includes a third positioning member. A framing square is coupled with the third positioning member enabling the protractor to be positioned on the framing square.

Abstract: A trigonometric teaching aid for providing students with real life applications for the principles of trigonometry includes a transit assembly having a sight tube with cross hairs, a level and an upper protractor pivotally connected to an upper end of a vertical scale, and a base assembly including a lower protractor pivotally connected to a lower end of the scale member. By leveling the transit assembly and measuring the angles of inclinations at the protractors, student using trigonometric formulas, tables and classroom lessons can determine physical measurements of real life objects.

Abstract: A rafter layout tool for facilitating the layout of ridge cut, bird's mouth, seat cuts, fascia and soffit for the common hip, valley rafter cuts comprising a protractor member, measurement indicator arm and 90 degree arm and move up and down and side to side for different size lumber from 2?×6? to 2?×12? which is pivotally connected to the base of the protractor member, incorporating means for indicating pitch markings on said protractor. Extending linearly along the measurement indicator arm is a bounded slot providing means for slidably up and down and attaching the 90 degree arm ably to slide side to side and up and down for different size lumber.

Abstract: A multi-task protractor apparatus having the capabilities of a rotating protractor, adjustable triangle, ruler, miniature leveler, framing square and roof angle finder is disclosed. The multi-task protractor accurately measures angles and slopes and provides two straight edges for constructing angles and triangles.

Abstract: A miter apparatus is for making beveled cuts in a workpiece such as a board or the like. A base defines a seat for placing against an edge of the workpiece, and a guide member is pivotably attached to the base for adjustment to any desired angle of a beveled cut. Side surfaces of the guide member provide a bearing surface against which one side of a conventional handsaw may move to guide the saw while cutting the workpiece at the desired angle. A knob selectably secures the to guide member the base, and a surface on the knob provides an additional bearing surface for guiding the saw.

Abstract: A measuring device is provided for carpenters, roofers and other tradesmen. The device is made of relatively lightweight plastic and has a variety of uses. The elongated base is rectangular in cross sectional and includes a scale for measuring distances along one side. Pivotally affixed to the base is a level which can be locked against a protractor (also affixed to the base) at any angle between zero and ninety degrees (0°-90°). Roof pitches, gradients and other angles can be determined or set in a simple, easy to learn manner.

Abstract: An improved tool is provided for locating the corner or edge of a workpiece while setting the workpiece at a desired angle with respect to a work surface. An elongated arm member slidably engages an elongated base member at one end, allowing for the measurement of the distance between the opposite end portions of the arm and base member and calculation of the angle at which the workpiece is disposed. The base member is provided with generally opposing first and second mating surfaces for locating the corner or edge of the workpiece. Different embodiments are provided for use in finding edges of workpieces having various angles. Different embodiments further provide for the use of multiple measuring instrumentalities and calculations.

Abstract: A measuring instrument comprising a frame and a plurality of measurement indicia. A power source is positioned inside a portion of the frame with a light source operatively connected to the power source. When a user presses down upon the frame, the light source is actuated, sending light throughout the frame and illuminating the measurement indicia, providing improved visibility for a user.

Abstract: A protractor comprising a frame and a lever arm coupled thereto. The frame includes a first substantially straight edge and an elongate track adjacent to the first edge. The lever arm includes a second substantially straight edge and a channel which mateably engages the track of the frame. The channel/track combination couples the lever arm to the frame and permits the lever arm to rotate about an axis substantially orthogonal to the first and second edges. The first and second edges intersect at a point allowing a user to describe an angle between the two edges.

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: A device of utility in precisely setting the angular relationship of a circular saw blade of radial bench type power saw, which includes a special protractor defined by removing adjoining segments of the linear leg and the curved leg thereof, and a modified T-square including a head piece having a curvature matching that of the curved leg of the protractor and a connected ruler blade extending radially toward the center of said protractor, said T-square being improved in that the thickness of the head piece is greater than that of the ruler blade and the location of the ruler blade is such that the blade can be located on either face and still use an upper and lower lip for sliding contact with the circular edge of the protractor, whereby two T-squares are not necessary as in my prior U.S. Pat. No. 5,632,096.

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 angle guide instrument having particular utility for handrail installation which includes a body portion having an outer arcuate edge and first and second arms which are pivotable with respect to the body and are used in conjunction with levels mounted to the body for determining angles for purposes of cutting sections of handrail. In a preferred embodiment the arms include extensions which are profiled so as to be cooperatively seated with a section of handrail.

Abstract: A device of utility in precisely setting the angular relationship of a circular saw blade of a radial bench type power saw, which includes a special protractor defined by removing adjoining segments of the linear leg and the curved leg thereof, and a modified T-square including a head piece having a curvature matching that of the curved leg of the protractor and a connected ruler blade extending radially toward the center of said protractor.

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 present invention relates to a kind of movable device which varies at any angle to serve as measurement ruler, and more particularly to an improved structure of measurement ruler with multiple functions in use. The ruler's main body is L shaped with engraved number of degrees on both sides, one side with sliding channel and a sliding through installed at the lower end of the sliding channel, which is wider in breadth than the channel, one measurement ruler like a straight stick with engraved numbers in degrees, one end of which is in conical shape and the other end of which at the top there installs a sign index with a conical peeping hole and a set of installation holes, one scale ruler in semi-circular shape with sliding block in consecutive form. Under it, there is sliding column on which there are threaded lines. AT the front end, there in an assembly hole. The semi-circular body is engraved with the degrees in angle.

Abstract: A measuring tool includes a primary body having an elongate rectangular primary ruler with a primary protractor at one end describing a segment of a circle. A secondary body is provided having a pair of parallel spaced members. Each of the parallel spaced members has an elongate rectangular secondary ruler with a secondary protractor at one end describing a segment of a circle. The secondary body is pivotally connected to the primary body such that the primary body is positioned between the parallel spaced members of the secondary body with the secondary rulers overlying the primary ruler and the secondary protractors overlying the primary protractor. The measuring tool, as described, combines in a single tool functions which would normally require multiple tools.

Abstract: An improved combination square set is provided. It has a square head, a center head, a protractor head and a blade. The improvement is the blade which can be a grooved L-square rule, a grooved T-square rule, a grooved try square and a grooved flat straight rule, so that the improved combination square set can be used to measure and mark quadrants on round stock, the angle of a drill press table and angles on a flat board.

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: In order to provide an protractor with an electronic, digital display instead of a vernier angle scale, each section (6 and 10, and 8) of the capacitive element of a measuring device is connected to one of the arms (1, 3). Since the parts of this capacitive element must not be pressed against one another by the pressing together of the arms (1, 3) of the protractor, a clamping element (20) is required which can form a mechanical connection between the two arms (1, 3) through central bores (6a, 10a, 21a-c) in these parts when said arms (1, 3) are locked together in such a way that they cannot rotate relative to one another, by means of tightening a locking nut (4) on a central shaft (12).

Abstract: A combined try square and protractor is structured to measure a right angle, to measure center of a pipe and to measure various angles therefrom.

Abstract: A chalkline device situated on a protractor in such a manner which permits the chalkline string to extend from the centerpoint of the protractor's radius past the degree markings on the protractor. By placing the centerpoint side of the protractor on any straight surface and extending the chalkline string past the degree markings any angle measurement can, by the chalkline string, be determined and marked in the same process. The chalkline string serves as both the hand of a dial and a medium for conveyance of the chalk to the surface being marked or measured.

Abstract: A sharpening guide for dental curets. A base member is provided having thereon a positioning point, sighting sections and stone guide lines. A dental curet is aligned with the guide and a sharpening stone applied thereto to correctly sharpen the blade of the instrument.

Abstract: A device for plotting points on a drawing surface comprises a number of separate parts which are assembled on the drawing surface to produce a drawing instrument which covers a required angular range. The parts include a pivot boss which may be taped to the surface with its cross-wire over a given reference center, a radius arm which is pivotally mountable on the boss, and a plurality of interlocking protractor segments having an angular scale. The radius arm has a detachable radial distance scale, a vernier angular scale, and also a small hole for plotting positioning arcs on the surface. The protractor segments are separately attachable to the surface and may be positioned with respect to the center by means of the said positioning arcs. In an alternative embodiment the radius arm comprises a radial distance scale member with a pivot member clamped to one end and a vernier angular scale clamped to the other end.

Abstract: A protractor consisting of a flat base having two straight edges and a degree scale, a measuring arm mounted on the base for rotation about a pivot point and having straight edges for cooperating with the straight edges of the base to form angles corresponding to angles to be measured, an indicator arm mounted on the measuring arm for rotation about the pivot point, and having an indicator mark, and locking means for fixing the indicator arm in plurality of predetermined positions on the measuring arm so that, in each position, the angle indicated by the mark on the scale coincides with the angle formed between one of the straight edges of the base and one of the straight edges of the measuring arm.

Abstract: A drafting instrument comprising a central plate member, and first and second drafting plates, each including two sides having first and second angularly related straight edges forming an angle therebetween and a third hypotenuse edge spanning the first and second edges, and mechanism pivotally coupling the first and second plates to the central plate member for swinging movement relative thereto and relative to each other.

Abstract: A ruler means for dividing a distance into an optional number of parts, e.g., into equal parts. The ruler means comprises a ruler with a number of numbered scales with a zero point. Said ruler is, along said scales, provided with holes for plotting an optional division of an auxiliary distance such the the projection thereof comprises the actual distance to be divided. The holes are equidistantly spaced and tapered toward the rear face of said ruler.