Abstract: A pregauging tool for the stop assembly of a cutting device wherein the pregauging tool has a scale having an elongated configuration and opposed substantially parallel longitudinal edges. At least one series of graduations extends longitudinally along the scale and a flange member is mounted at the end of the scale associated with the zero index of the graduations. The flange member has a linear first side adapted for securement along a cutting plane of the cutting device. An indicator member is slideably fit to the scale and has a cantilevered abutment arm extending in a transverse direction relative to the longitudinal dimension of the scale. The abutment arm has a lead end defining a registration plane for reading of the scale graduations, and has a trail end spaced apart from the lead end by a distance equivalent to the portion of the graduations covered by the flange member.

Abstract: A marking and measuring tool has a set of channels in which a bar may be slid. The channels extend from a flat side face adapted to be placed flush against a side of a work piece with one side of each channel extending towards a common line located in the plane of the side face.

Abstract: A bar for temporarily securing to the housing of a construction laser so as to be able to measure accurately off to one side so that a plumb line can be established when there is an obstruction above the laser housing. The bar has means for a quick disconnect fitting on the handle of the laser.

Abstract: A marking and measuring tool has a set of channels in which a bar may be slid. The channels extend from a flat side face adapted to be placed flush against a side of a work piece with one side of each channel extending towards a common line located in the plane of the side face.

Abstract: A straight edge stock is lockable at any desired location along the length of a steel rule with the stock and rule forming perpendicular straight edges. The stock includes an integral protractor triangle projecting from a thicker barrel of the stock and having a hypotenuse edge extending generally from the bottom of the stock barrel angularly toward the rule. The margin of the protractor triangle adjacent to its hypotenuse edge has a scale of angle calibration markings indicating the angle of a line connecting each individual marking and the top of the leading edge of the thicker stock barrel.

Abstract: A multi-element aid for the design of business forms of different sizes having selectable characteristics. As disclosed, the business form design aid includes four elongated elements slidably interconnected to form an enclosed, generally rectangular area of variable size. Each element includes a border guide marking, which is aligned with the inner edge of one adjacent element, as well as one or more business form indicia spaced apart from the border guide marking along the element. The inner edge of each element also meets a border guide marking on a second adjacent element. In this way, for any interior opening size, selectable business form design indicia are spaced apart from each of the inner edges of the four elements by consistent distances.

Abstract: The present invention relates to a guide for the cutting of a board and the like which employs indicator means for extending outwarding to indicate a setting upon a rule extending over the surface of the workpiece wherein the end of the rule serves as an abutment for a straight edge to be used as a guide for travel of a saw, and a system therefor.

Abstract: A magnification calculator has a main member and a second member that moves to selected positions along the main member. One of the members has a first set of indicia, each element of which corresponds to one of the selected positions. The other member has a first reference indicator to indicate the element chosen, which is the dimension of a selected space in which a reproduction of a selected artwork portion is to be printed. The calculator includes two edge indicators on the main member, one at a fixed location and the other slidable on the main member. The second member has a second set of indicia divided into subsets, each corresponding to an element of the first set of indicia.

Abstract: A pair of simple rules, each having a body portion identical with a standard rule and a head at one end cooperating with the other rule, for placing the two rules in an arrangement forming a T-square, and enabling one to be moved or slid along the other. A modified form includes means for releasably binding the two rules together in set position.

Abstract: Disclosed herein is a trimming square set suitable for trimming photographic films, drawings or the like into arbitrary rectangular shapes.The square set utilized the rule that the four apices of a rectangle are invariably located on one circumference, permitting to form a rectangle of a desired size in an extremely facilitated manner by means of a first square member rotatably mounted on a base plate, a second square member rotatably mounted on a slide plate which is slidable on the base plate, and a circular hole provided in the base plate. Similar rectangles of different sizes can be formed easily by sliding the slide plate on the base plate.

Abstract: A combination device including a layout tool having a rectangular plate and a rectangular endpiece; and a square adaptor having an attachment plate and a ruler assembly. The layout tool is provided with a number of slots and apertures which allow a construction worker to make quick, standard measurements. The square adaptor includes a pivotable ruler which can be aligned parallel to or perpendicular to the longitudinal edges of the layout tool.

Abstract: A guide structure designed to locate blank spaces on a displayed form of a word processor through the utilization of a line scale and a character scale movably attached to and selectively positionable over the face of a conventional paper or like material form wherein indicia formed on each of the scales serves to establish coordinates of any blank space on a material form regardless of its location. The coordinates are then related to the operator of the word processor along with informational instructions for filling the blank space.

Abstract: A pipefitter's protractor has a pair of body members each of which is capable of supporting a welder's square. The body members are relatively rotatable about an axis so as to enable the squares to occupy any selected position of angular adjustment. The squares are supported on opposite sides of their respective body members to prevent interference between the squares during rotation of the body members.

Abstract: An extensible rule and protractor formed by an equally dimensioned pair of superposed strap members, having indicia thereon, secured together by a screw projecting through one member and sidably received by a longitudinal slot in the other member. Guide pins, on one member entering longitudinal grooves on the other member, maintain the members in longitudinal alignment when one member is sidably moved longitudinally relative to the other. A circular groove intersecting the longitudinal grooves at one end portion slidably receive the pins permitting angular rotation of one member with respect to the other to measure and define a selected angular position.

Abstract: This disclosure relates to a framing assembly comprising a plurality of elongated members each of which is mitered on at least one end, the at least one mitered end of each elongated member being further provided with a tabular projection of substantially uniform crows section which projects essentially perpendicular to the longitudinal axis of the elongated member, a grooved portion extends substantially the entire length of each of the elongated members and has a cross sectional dimension conforming substantially to the cross sectional dimension of the tubular projection of the elongated member, the tabular projection of one such elongated member being inserted into the grooved portion of an adjacent elongated member to thereby define a rigid frame. A mitering guide is provided which is movably mounted within the grooved portion of the elongated member and which is readily positioned substantially anywhere along the elongated member to facilitate the cutting of the elongated member to any desired length.

Abstract: A pipefitter's square holder comprises a body having adjacent its side edges a plurality of ledges each of which is capable of supporting one leg of a square. Inwardly of each side edge is an abutment. A pair of clamp members is mounted on the body for movements relative to the latter and to one another between positions adjacent selected ones of the ledges, such clamp members being capable of removably clamping a square against the abutment associated with each of such ledges.

Abstract: A square for plotting angles, parallels, and polygonal shapes on the circular surface of a cylindrical body. The square includes a pair of contact arms forming a right angle, and a center arm forming a bisector of the right angle. A protractor frame is slidably attached to the center arm, and a pointer is attached to the arc-shaped portion of the protractor. The square includes a separate attached straightedge parallel to the center arm, and movable in variable spaced relation thereto.

Abstract: A computational aid device for Ekelund range determinations comprising a e member adapted to be placed over a bearing/time plot and including two leg members to be aligned with intersecting bearing rate lines faired through the plot, and a range scale positionable with respect to the base and the leg members to provide direct readings of range and of probable limits of range error.

Abstract: A locating mechanism in which a pin or bolt is slidably accommodated in a bore for movement between a locking position and an unlocking position. The pin has a locking projection at one end and is provided with means for preventing rotation of the pin within the bore and hence ensuring that the locking projection is at all times oriented in the desired direction. The means is also operable to limit the extent by which the pin or bolt may slide longitudinally within the bore and, hence, serves to control the degree of travel of the locking projection. The means is a C-spring which extends radially outwardly from the pin or bolt and is seated in a registering recess which opens into the bore. In this manner the C-spring will prevent rotation of the pin within the bore and will permit longitudinal displacement of the pin in the bore by an extent corresponding to the permissible flexing of the C-spring until such time as the limbs of the C-spring come together into abutting relationship.

Abstract: A calligrapher's ruler including two fixed parallel longitudinal members each bearing a different set of graduated indicia is disclosed. A central member is slidably retained between the longitudinal members and mounts an elongated lateral straightedge member, also provided with a scale, so that the straightedge can be moved in a direction parallel to the longitudinal axes of the longitudinal members and maintained at a fixed angle, preferably perpendicular, relative thereto. A pointer on the central slide member is aligned with one of the indicia on the longitudinal members to establish the exact location of the straightedge member along the longitudinal members. A locking device on the central slide member locks the slide member and its connected straightedge in a selected position along the longitudinal members.

Abstract: A layout tool for defining points on rolled metal H beams comprises a U shape frame having a hand hold in the bight of the U. One leg of the frame is longer than the other and terminates at its end in a stabilizing and guide member extending perpendicular thereto. The guide member has a flat wear surface adapted to be positioned against the working line of the beam on the external surface of the beam to which all measurements are taken. The other leg of the frame slidingly supports in a channel provided therein a T scale having a flat stabilizing base member adapted to rest on the web of the beam. A locking mechanism is provided in the second leg which includes a thumb screw for locking the scale in position in the channel. The scale is disposed at right angles to the legs and the stabilizing and guide member such that the layout tool allows orthogonal lines to be scribed in any one position of the tool.

Abstract: The present measuring tool facilitates the work of a carpenter, especially panelling work by a direct measuring and reading of the position of cut-outs that are to be made in any type of panel, for example to accommodate utility outlets and other openings. For this purpose a runner or slider is movable along a T-square. A readout window is provided in one face of the runner to directly read the runner position from the scale marking on the T-square. The runner or slider simultaneously has a hole therethrough which forms a template, for example, for standard electrical outlet boxes. Thus, the carpenter may directly work on the panel a hole to be cut into the panel without even memorizing the measurements. A set screw or the like may be used to lock the runner on the leg of the T-square once the runner or slider has been properly positioned on the T-square leg whereby the locked position of the runner acts as a memory for the reading.

Abstract: This invention relates to a device for counting typographical characters on a page of typed material. The disclosed invention includes a transparent first member which may be oriented along a line of typographical characters. A transparent second member is slidably mounted in a perpendicular relationship to the first member. There are provided on the first member a plurality of sets of parallel lines, each of said sets being disposed from one end of said transparent first member to another end, the lines in each of said sets being consecutively numbered. There are further provided on the first member a plurality of sets of discrete spaces also disposed from one end of the transparent first member to another end, the width of the spaces corresponding to a particular type size, and the width of said spaces being uniform within a particular set, such that said spaces are superimposable upon a line of typographical characters of a particular type face.