Abstract: A golf device including an elongated portion. The golf device may include a sub elongated portion recessed in the elongated portion. The golf device may include an arch portion slideably engageable inside the sub elongated portion.

Abstract: A golf device including an elongated portion. A sub elongated portion may be recessed in the elongated portion. An arch portion may be slideably engageable inside the sub elongated portion.

Abstract: The New Trigonometer is a device used to compute the trigonometric sine, cosine and tangent of angles. Consequently, the device could also be used to calculate the reciprocal sine, cosine, and tangent functions. The device constitutes of a protractor and a graduated ruler attached thereof. An arm is pivotally joined to the center of protractor and a second graduated ruler is pivotally joined to the arm in a way, which makes the New Trigonometer a reflection of the trigonometric circle.

Abstract: The New Trigonometer is a genuine device used to compute the sine, cosine, and tangent of angles. Consequently, the device could also be used to calculate the reciprocal sine, cosine, and tangent functions. Modern calculators can easily compute the above mathematical functions, thus the importance of this device is not in its ability to do such calculation. On contrast, the New Trigonometer has many aspects of novelty, which need to be protected. Indeed, it adds to the conventional protractor three new components: the Tangent Calculator, the Sin/Cos Calculator and the Angle Tracking Device. Moreover, these components are assembled in a genuine way, which makes the new trigonometer a tangible reflection of the trigonometric circle. Thus, the New Trigonometer becomes a significant educative tool for the students due to its illustrative characteristics, and a useful measurement tool in carpentry due to its holistic features and ease of use.

Abstract: An apparatus for displaying or measuring a trigonometric sine or cosine is provided, which includes a planar surface with a circle or a portion thereof and a bisecting line through the center of the circle. Two arms are attached to the apparatus. The circle, bisecting line and second arm include incremental markings that correspond to the degree and/or radian measurements of the unit circle, trigonometric cosine and trigonometric sine, respectively. A method is also provided which includes rotating one of the arms to a position along the circle to form an angle. Based upon the position of the first and second arms the trigonometric cosine and trigonometric sine of the angle can be read. An electronic display device that displays the trigonometric sine and trigonometric cosine of an angle can also be included.

Abstract: A device that teaches the relationship between a right triangle, the length of its hypotenuse, the length of its two sides and the trigonometric functions. The device includes a horizontal and vertical ruler attached by a sliding attachment bracket. A circular plate showing 360 degrees (?) is attached to the horizontal ruler along with a pivoting ruler that can rotate 360 degrees. By sliding the vertical ruler along the horizontal ruler and revolving the pivoting ruler, the height of the vertical ruler (Y) where it intersects the pivoting ruler, the length of the horizontal ruler (X) where it intersects the vertical ruler, and the length of the of the pivoting ruler (R) where it intersects the vertical ruler can be measured. The trigonometric functions can then be calculated and plotted by their relationship with the measured values of X, Y, R and ?.

Abstract: The present invention is directed to an apparatus and method for marking an angles relative to a baseline, the apparatus comprising two elongate arms, one arm having a length greater than that of the other, the arms being pivotally joined at one end by a connecting means having an aperture and anchoring means attached to the other ends for anchoring the arms to a first marker at one end of the baseline and a second marker marking the other end of the baseline to a specified length. The baseline length determines the size of the angles given the constant lengths of the first and second arms. The method may be employed by a single unskilled user to mark angles of any size greater than 0 and less than 180 degrees. The apparatus may be sized and proportioned for use on projects of widely varying scales.

Abstract: A new geometric instrument-compass for a practical use that allows the trisection of an arbitrary angle as well as retains its effective functionality for operations that can be performed by the conventional compass is disclosed. The design proposed makes this new compass universal in terms of its applicability, namely, it can be used in a vertical position as the conventional compass (depending on the purpose or convenience of the user) and can be used in horizontal position (if it is required to perform the trisection of an angle or even some other operations generally performed by the conventional compass). The simplicity of the design and effectiveness of operations makes this instrument an attractive tool for practical application.

Abstract: A method of measuring machine height of a surveying machine includes setting a surveying machine such that the machine center situates on a vertical line passing through a measuring point defining a crossing point between a horizontal line passing through the machine center of the surveying machine and the side of the machine as the machine height point, determining a point symmetrical with the machine center with respect to a segment connecting the machine height point and a measuring point as the machine center symmetrical point, and measuring the distance between the determined machine center symmetrical point and the measuring point as the machine height. A machine height measuring device for a surveying machine includes an elongate bar and a cursor slidably disposed on the bar such that the cursor is perpendicular to the bar. The bar has a linear scale provided thereon and a tapered tip end which allows the measuring point to be indicated as a point.

Abstract: A layout for a static structure, such as a building or the like, is defined using a plurality of triangles and a plurality of tethering cables. The layout is effected by measuring from a property line for a starting point and for a length of a base line. The triangles and tethering cables are located and connected to define at least one angle, and further angles and lines are measured from this first angle.

Abstract: A method of measuring a vehicular frame to determine alignment, where measurements provided in the manufacturer's specifications are known. The method consists of the following steps. Firstly, establishing at least one reference point spaced from a vehicular frame. Secondly, triangulating the vehicular frame by measuring the angle from the reference point to one or more coordinate points provided in the manufacturer's specifications. One side of the triangle containing the reference points is a reference line of a known length. Thirdly, using the length of the reference line and the angular measurement from the reference points as a basis for trigonometric calculation.

Abstract: Apparatus for marking a reference line on a working surface at a predetermined angle or disposition from an established base line. Three tape measures each have a housing and a retractable tape extending therefrom. The free ends of each tape are connected to the housing of one of the other tape measures. The scales on the tapes may be varied from a predetermined norm for ease of reading the scales to determine an exact right angle.

Abstract: A tool for use by carpenters and the like for conveniently establishing a reference line on a working surface at a predetermined angular disposition from an established base line on said surface. The tool includes an elongated member from which angle lines or cords are each adapted to extend a predetermined distance such that the intersecting terminal ends of such cords in combination with the member, form a triangle having sides of known length. Inasmuch as the length of the triangle's sides are known, the angles included thereby are also known such that a chalked line connected to the member may be utilized to establish a reference line at a known angular disposition to the member. The tool has particular utility when it is desired to establish the angular relationship of a wall to be built with respect to an already existing wall.

Abstract: This disclosure relates to a new navigational calculating device which provides a mechanical means of solving position finding problems by solving a plane right triangle. It is an alternative to traverse tables, trigonometric formulas, and chart plotting for determining a dead reckoning position. It is particularly useful for small water-going craft in which conventional methods of navigation are difficult or impractical. A plotting board may be used to provide a visual application of calculation results.

Abstract: The disclosure teaches a device for creating an infinite number of vector triangles such that a vehicle's speed may be set as one leg of a vector triangle and the apparent wind's speed and direction may be set as a second leg, solution of the third leg yielding true wind speed and relative wind direction which is convertible into true wind direction by reference to vehicle true heading.

Abstract: This disclosure relates to a new navigational calculating device which provides a mechanical means of solving position finding problems by solving a plane right triangle. It is an alternative to traverse tables, trigonometric formulas, and chart plotting for determining a dead reckoning position. It is particularly useful for small water-going craft in which conventional methods of navigation are difficult or impractical.