Abstract: The invention is an apparatus and method for marking a pitcher's circle for a sport such as girl's fast pitch softball. A spike locates the center of the circle and a cord attached to the spike defines the radius of the circle. A scribe attached to a handle and to the cord is configured to mark the dirt. The scribe defines a marking tip and an indicator portion. The marking tip leaves a track in the dirt that is within a track left by the indicator portion when the handle is in the proper vertical position.

Abstract: A cutting tool is provided which may simultaneously score or cut opposite sides of a wallboard. The tool may also be used to cut semi-circular portions from a corner of the wallboard and which may be used to cut circles from the wallboard.

Abstract: The present invention relates to a method for producing a two-dimensional panel (1) for floor coverings, wall and ceiling coverings, preferably for moisture-prone rooms, comprising the following steps: milling one upper longitudinal groove (6) into a base panel, starting from its useful side (5), the longitudinal groove (6) is filled with an elastic water-repellent plastics or sealing mass (9); and after hardening of the plastics or sealing mass (9), at least one lower longitudinal groove (11) is milled, starting from its rear side (10), the depth of which groove reaching as far as to the sealing mass (9) or into the sealing mass of one of the upper longitudinal grooves (6), thus forming an elastic expansion joint (12) of the panel (1).

Abstract: A device for cutting sanitary containers, in particular sacks, bags, and/or pouches for stomas, includes a structure (2) provided with a housing portion (3). The housing portion (2) has a cutting plate (4, 10) whereon is set down a container to be cut. The cut is accomplished by cutting elements (23) associated with the structure (2). The cutting elements (13) are adapted to cut a structural portion of the container, defining its inlet. The cutting elements are further provided with adjusting elements (17) to determine the amplitude and the shape of the inlet of the container being prepared, in relation to the shape and the dimensions of the stoma of a patient.

Abstract: A manipulator of a compass for drawing a circle or a compass-cutter for cutting an object in circular configuration is provided with a mechanism for transmitting the force from the user's hand only in one direction. With such the construction, a user can smoothly draw a complete circle at 360 degree, or can cut a paper, a cloth and so on in circular configuration, without re-pinching the manipulator during operation, in a manner for a ratchet which is a commercially available tool.

Abstract: 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 rotated in any one of a variety of directions around a single rotating point. The invention allows persons of limited manual dexterity to apply force in one location and then to rotate the entire device around this one point.

Abstract: There is provided a compass assembly that includes a first member pivotally connected to a second member at a common end. The first member has an anchor point opposite the common end, and the second member retains a marking device opposite the common end. The compass assembly also includes a compressible cover positioned over the anchor point.

Abstract: A guide for assisting in marking a measurement and/or scoring a sheet of drywall, paneling or other planar building material has a bore for receiving a pencil or other marker and has a slot for receiving a scoring blade therethrough. The guide may have a support for maintaining the pencil, marker or a knife having a scoring blade, in a steady relationship with the surface to be scored or marked. The guide may have a curvature or curvatures for cooperating with the pencil, marker or knife. The guide may also have an attaching structure, such as a flange or slot, to attach the guide to a measuring device, including a retractable carpenter's tape, combination square or other rule.

Abstract: A manipulator of a compass for drawing a circle or a compass-cutter for cutting an object in circular configuration is provided with a mechanism for transmitting the force from the user's hand only in one direction. With such the construction, a user can smoothly draw a complete circle at 360 degree, or can cut a paper, a cloth and so on in circular configuration, without re-pinching the manipulator during operation, in a manner for a ratchet which is a commercially available tool.

Abstract: A measurement marking mechanism that can be coupled to a tape measure includes a case and a marker. The marker is coupled to the case and is moveable. When the case is coupled to the tape measure, the marker is moveable relative to the tape measure in a direction that is substantially perpendicular to the direction that the measurement tape is extracted from the tape measure, and in a plane that substantially parallel with, or substantially perpendicular to, the plane that the measurement tape is extracted from the tape measure. The marking mechanism may also be formed as part of a tape measure during the manufacturing process.

Abstract: A manipulator of a compass for drawing a circle or a compass-cutter for cutting an object in circular configuration is provided with a mechanism for transmitting the force from the user's hand only in one direction. With such the construction, a user can smoothly draw a complete circle at 360 degree, or can cut a paper, a cloth and so on in circular configuration, without re-pinching the manipulator during operation, in a manner for a ratchet which is a commercially available tool.

Abstract: A compass is provided for marking, scoring or cutting curves on a surface. The compass includes an instrument holder adapted for receiving and holding a surface-engaging instrument. An adjustable-length cable has a proximal end secured to the holder and a free end for being anchored to the surface a selected distance from the holder. The selected distance defines a radius of a curve formed by operation of the compass.

Abstract: A circle cutting machine includes a template that is removeably installed in the bottom of a base. On the base bottom surface are a number of segments that define respective grooves for receiving the template. The base has a cross-beam that defines an axis of rotation and that receives a handle. On one end of the handle is a crank. The handle second end holds a cutting arm. A handle spring biases the cutting arm to contact the cross-beam. The handle is slideable in the cross-beam to locate the cutting arm below the plane of the base bottom surface for easy removing of the cutting arm from the handle. An adjuster rigidly locks and resiliently unlocks the cutting arm to the handle. The template has a circular periphery that enters the base grooves, and a tab that is between two segments, when the template is installed.

Abstract: Disclosed is a high-precision cog measuring instrument having a constitution wherein warping is unlikely and not easily transmitted.

Abstract: A compass is provided for marking, scoring or cutting curves on a surface. The compass includes an instrument holder adapted for receiving and holding a surface-engaging instrument. An adjustable-length cable has a proximal end secured to the holder and a free end for being anchored to the surface a selected distance from the holder. The selected distance defines a radius of a curve formed by operation of the compass.

Abstract: A manipulator of a compass for drawing a circle or a compass-cutter for cutting an object in circular configuration is provided with a mechanism for transmitting the force from the user's hand only in one direction. With such the construction, a user can smoothly draw a complete circle at 360 degree, or can cut a paper, a cloth and so on in circular configuration, without re-pinching the manipulator during operation, in a manner for a ratchet which is a commercially available tool.

Abstract: A method and apparatus for the separation of round or elliptical bodies from the surrounding material or for annular shaped bodies from the material sorrounding the OD as well as the material confined by the ID. The method applies to non-metallic substances under special consideration of glass.

Abstract: A hollow handle portion and a hollow barrel portion communicate with each other in a hollow housing. A first detent in the barrel portion has a first relationship for retaining a chalk in the barrel portion and a second relationship for releasing the chalk from the barrel portion. The detent is operable to the first and second relationships by a control member externally disposed on the barrel portion. A rotatable reel and a second detent are disposed in the handle portion. The second detent has a first relationship for preventing the reel from rotating and a second relationship for providing for the reel rotation. The second detent is operable to the first and second relationships by a second control member externally disposed on the handle portion. A string wound on the reel extends at a free end through an opening in the handle portion to a position external of the handle portion.

Abstract: A hand tool for forming circular cutouts of sheet material secures the material so that no generally central penetration in the form of a pilot hole or the like, is required. The resulting cutout is useful in the construction of an article assembled from a series of such blanks or cutouts, such as a quilt assembled from a large number of blanks with the blanks being sewn together at points of mutual contact about their circumferences. The tool comprises a relatively stationary base hub with a shaft extending upwardly therefrom, and a hand pressure knob mounted on the shaft opposite the base hub. A rotary disc with a radial channel having a cutting arm and rotary cutting blade therein, is sandwiched between the base hub and pressure knob. The tool is placed upon the sheet material and pressure is applied to the pressure knob, with the cutting arm and rotary disc being rotated about the hub and knob to drive the cutting blade in a circular path about the hub.