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| Number | Title | Issue Date |
| 4833791 | Step layout device A step layout device for giving a visual and physical representation of riser and tread dimensions which have been or are being selected for a stairway, wherein the device has at least one lower and one upper pair of planar members, the members of each pa... | 05/30/1989 |
| 4825559 | Pregauging tool for a cutting table 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 th... | 05/02/1989 |
| 4702012 | Marking and measuring tool 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... | 10/27/1987 |
| 4674188 | Plumb bar 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 discon... | 06/23/1987 |
| 4642898 | Marking and measuring tool 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... | 02/17/1987 |
| 4641435 | Combination square 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 h... | 02/10/1987 |
| 4638564 | Measuring guide for saw and measuring guide system 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 ... | 01/27/1987 |
| 4638569 | Business form design aid 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 ... | 01/27/1987 |
| 4633591 | Digital image proportion analyzer 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 ha... | 01/06/1987 |
| 4599805 | Transmutable rule 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. ... | 07/15/1986 |
| 4584779 | Trimming square set 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, p... | 04/29/1986 |
| 4574492 | Combination layout tool and square 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 constr... | 03/11/1986 |
| 4503615 | Guide structure 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... | 03/12/1985 |
| 4497119 | Pipefitter's protractor 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 s... | 02/05/1985 |
| 4451993 | Sliding rule and protractor 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 p... | 06/05/1984 |
| 4413035 | Framing assembly 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... | 11/01/1983 |
| 4388765 | Pipefitters square holder 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 mo... | 06/21/1983 |
| 4352247 | Square level for drawing angles and parallels 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 sl... | 10/05/1982 |
| 4327500 | Computational aid device for Ekelund ranging 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 po... | 05/04/1982 |
| 4301600 | Locating mechanism 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 wit... | 11/24/1981 |
| 4255867 | Guideline and layout ruler for calligraphers 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 me... | 03/17/1981 |
| 4233747 | Three dimensional layout tool 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... | 11/18/1980 |
| 4228592 | Measuring tool especially for carpenters 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... | 10/21/1980 |
| 4221057 | Printers gauge 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 i... | 09/09/1980 |
| 4026030 | Drafting template Adjustable drafting template characterized by relatively slideable members which may be positioned to form openings for drawing figures with two parallel sides of different widths and lengths having ends of various shapes; also, circles, chordal portions ... | 05/31/1977 |
| 3975830 | Centering tool A centering tool composed of two symmetrical plate members that are slidably connected together. The one member is mounted on one rim flange of a machine with a linear reference edge on the other rim flange. The other member is mounted on the other rim fl... | 08/24/1976 |
