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7383635 |
Multipurpose drawing tool
A multipurpose drawing tool is provided. One embodiment of the tool that is advantageous for drawing circles one-handedly includes a protractor portion and an elongated radius arm portion. The...
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7254855 |
Multi-purpose hand tool and scribing apparatus utilizing multi-purpose hand tool
A multi-purpose hand tool has a first member having a first portion and a second portion. A second portion member is slidably and pivotally coupled to the second portion of the first member. A...
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7191530 |
Compass assembly
A compass assembly includes a tape measure apparatus that includes a housing and a tape measure removably extendable outwardly of the housing. A disc has a top side, a bottom side and a peripheral...
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7080459 |
Thread ruler and a multi-function drafting instrument
The Thread Ruler and Multi-Function Drafting Instrument is a single instrument designed to draw circles, ellipses and parallel lines, and which includes features that allow the instrument to...
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7010861 |
Marking system
A marking system that may be configured to achieve a variety of marking devices. The marking system includes a main body member and a plurality of downwardly directed marking members.
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6996915 |
Tape measure apparatus which can be used as a marking gauge and/or compass
An improved tape measure apparatus which can be used as a marking gauge and/or compass comprising a tape measure, an insert comprising a base, a guide attached to the base and generally parallel to...
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6981328 |
Compass and ellipsograph for persons with manual limitations
A safe, stable compass for making circles and ellipses, having a stable rotating platform with a variably adjustable arm that allows the device to be self-supporting upon a surface and to be easily...
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6907669 |
Drawing compass
A drawing compass with a structure of L shape and a method of using the same provide improved single-hand manipulation and handling of drawing an arc or circle. The drawing compass comprises a...
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6752572 |
Circle cutting accessory for a powered rotary hand tool
A circle cutting accessory for use with a generally cylindrical powered rotary hand tool with an output shaft at one end thereof, the tool having a second accessory attached to the one end, with...
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6708417 |
Large panel sheathing square
A framing square for marking transverse, gable, hip/valley cut lines on a large standard sheathing panel includes an elongated rectangular scale with a transverse T-bar handle of equal width having...
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6606796 |
Drawing tool
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...
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6604294 |
Adjustable angle carpentry apparatus
An adjustable carpenter's square for the quick and reproducible measurement of angles and radii. The adjustable carpenter's square includes a center bar that includes a set of indicia. The indicia...
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6604289 |
Universal measuring scriber
A measuring scriber including a base having a channel. A bar is slidably disposed within the base channel. A jaw is mounted on an end of the bar. A first scribe blade or needle extends from the...
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6574873 |
Arch cutting jig
An jig for a hand-held saw having a powered blade includes a slotted trammel arm, one end of the arm being formed for fixably engaging a guide holder of the saw. A clamp assembly fixably locatable...
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6571841 |
Unit and method for bending wood
Wood is bent using a unit and a method in which a continuous and uninterrupted curved path is defined over a workpiece-supporting surface and form and clamp blocks are electromagnetically attached...
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6546634 |
Compass cutter
A compass cutter has a main body fastened with an extension rod which is connected with a slidable seat slidable along the extension rod. The main body is further provided with a locating block, a...
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6540756 |
Portal acquisition tool
A tool is provided for use in acquiring a treatment portal on the skin surface of a patient undergoing radiation therapy or the like. The portal acquisition tool includes a template portion having...
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6523269 |
Apparatus and method for routing radii and drawing full-scale layouts
An apparatus and method for routing radii and for producing full-scale layouts is disclosed. The apparatus consists of a guide of smaller radius than the work, a carriage adapted to trace the...
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6405443 |
Geometric construction device
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...
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6334744 |
Circle cutting jig
A jig for use in conjunction with a router to cut circular openings is disclosed herein. The circular jig is comprised of a plate that has an escape hole for receiving a bit of the router...
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6247240 |
Ruler system
A ruler system for measuring workpieces includes a multi-surfaced ruler with rules inscribed along the edges of several surfaces. The ruler contains grooves and T-slots in its surfaces that run...
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6233835 |
Scribe/guide tool adapted for stair construction
A scribe/guide tool used as a compass and to layout stair stringers. The tool is also used in conjunction with a straightedge or a rule to function as a compass, and is most often used in pairs. A...
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6223443 |
Pattern developing tool
A pattern developing tool comprising an axial pilot, pivotal bracket, and marker holder used with a retractable tape measure having a tab affixed to the zero end thereof a measured scale...
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6167628 |
Carpenter's gauge
A carpenter's gauge for use as a marking gauge or a compass includes a compass bar, a pin carrier, and a marking instrument holder. The compass bar is an elongated bar having a slot formed along...
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6158137 |
Center locator tool
The center locator tool has a flat, rectangular case with a top wall, a bottom wall, and two opposing side walls. The interior of the case houses a spur gear rotatably mounted on a center post...
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6119354 |
Trammel adaptor for a square head
A trammel adaptor for a square head. It has a right angle bracket having a vertical leg and a horizontal leg. A vertically extending left flange is connected to the left edge of the vertical leg...
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5987760 |
Circle drawing tool
An improved circle drawing tool is equipped with a doughnut-shaped outer board, a circular slide track mounted onto the outer board and an inner circular board provided with rolling balls in a...
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5822871 |
Tool to aid in cutting circles in drywall
A tool that aids in the cutting of a circle in drywall. The tool consists chiefly of a substantially flat main body including a plurality of grooves. The grooves are used to guide a cutting tool...
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5784791 |
Adjustable compass
A compass having a pivot portion with an open faced clamp and a utensil portion with an open faced clamp, so that the portions can be clamped onto intermediate bars of varying shapes and sizes. The...
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5782007 |
Tool guiding tape measure
A guide facilitates marking or cutting flat sheet material, such as wallboard or plywood for example, along linear or arcuate lines. A first guide member has a flat surface which is contacted with...
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5778949 |
Adjustable router
An adjustable router comprised of a lower track having an aperture formed therethrough. The aperture allows the elongated lower track to be pivotally secured to a board by a nail. One of two side...
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5735052 |
Universal tape measure
A universal tape measure including a housing formed with a downward extending opening on a lateral side. A lower end of the opening is disposed with a pen tip opening. An inner wall of the opening...
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5628118 |
Mini-drafting machine
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...
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5615485 |
Instruments for drawing circles
A device for forming circles on a drawing surface that includes, in part, a first rotatable member and a second rotatable member. The first rotatable member is substantially flat and includes an...
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5515611 |
Router guide
A guide for attaching to a router to form arcuate cuts in a workpiece. The router guide has a circular mounting plate which replaces a lower plate of a router. The guide has an elongated arm...
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5507212 |
Radial arm saw glass cutting attachment
A radial arm saw glass cutting attachment including an arm having an orthogonal and a radially oriented glass cutter. The arm attaches to the radial arm saw blade attachment shaft and the shaft is...
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5497558 |
Multi-function drafting instrument
A drafting instrument is disclosed that functions as a protractor, compass, T-square and ruler. The instrument is especially adaptable for use on dry erase boards, chalkboards and tables Apertures...
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5494384 |
Apparatus for tracing and milling mixed radii arches
An apparatus for defining arcs of mixed radii on a workpiece includes a base, a first selectively extensible arm rotatably mounted to the base, and a second selectively extensible arm rotatably...
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5493780 |
Tool for carpentry calipers for curved frames with joined end corners
A device for making a frame having at least two adjacent portions of distinct curvatures with a rounded joint between these two portions comprises a conventional carpentry caliper for outlining at...
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5486076 |
Radius-milling fixture for machining workpieces
The invention concerns a radius-milling fixture for machining workpieces by means of a hand-held router. The fixture has a rectangular support (1), made preferably of plexiglas, which has a support...
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5477619 |
Tape measure marking attachment
A marking attachment for use with a tape measure. The marking attachment includes a generally cylindrically shaped housing for holding a marking utensil. A mechanism is included integral with the...
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5390418 |
Tool for drawing circumferences
A tool for drawing circumferences includes a main plate having at least one through opening and at least one disc plate located within the through opening of the main plate. Both plates are...
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5384964 |
Rotary circle template
A rotative drawing template, used to draw various sizes of circles. The template is circular in configuration and is held at its periphery by equally spaced balls running in between two bearing...
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5349760 |
Measuring and cutting tool
An improved measuring and cutting tool is provided, which consists of an extensible tape measure. A mechanism for cutting is on a first end of the extensible tape measure. A structure for guiding...
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5347721 |
Method and device for drawing curved lines
A drafting tool for drawing a circle or curved arc has interlocked, independently rotatable concentric rings. The rings have radially extending openings that can be aligned to form a radial track....
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5253421 |
Circle drawing kit apparatus
A drawing kit includes a base member formed of a ferromagnetic or alternative base member to provide for suction, projection, and the like to an underlying surface, wherein the base member includes...
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5240338 |
Multifunctional drawing and writing instrument
The present invention is to provide a multifunctional drawing and writing instrument of a type wherein all of its pieces work together to perform a variety of functions that would otherwise require...
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5235754 |
Beam compass
A beam compass including a hollow beam, two implement securing units, and a slot communicating with the interior of the beam and extending along at least a portion of the length of the beam and...
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5193284 |
Multi-purpose drawing ruler
A multi-purpose drawing ruler comprising a ruler body, a direction wheel shaft assembly, two brake assemblies, two reset shafts and two retainers, in which the ruler body is in the form of a...
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5183373 |
Circle marking and cutting guide template
A template device and method for guiding a marking implement in marking circular lines upon a workpiece and, interchangeably, guides a router in its cutting engagement in following the marked...
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