Device for dividing an angle
OwnerWillem van Spijkerinventor
Life of this patent
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Abstract
Device for dividing an angle into equal or proportional parts, comprising the surface flattened or not of a right cone, of which the axis is adjustable through the vertex of the angle, on which surface a describing line and a number of lines corresponding to the number of angles into which the angle has to be divided, are or can be provided such that they all pass through a point on said describing line and divide into equal or proportional parts the circular arcs constituted by the planes perpendicular to the cone axis and the surface and lying between the intersection points of these circular arcs and the line most remote from said describing line.
Claims6
A device for dividing an angle into equal parts or into parts with a certain proportion with respect to each other comprising
- a solid geometric figure having a surface,
- an axis of said solid geometric figure perpendicular to the plane in which the angle to be divided is lying and adjustable to pass through the vertex of the angle to be divided,
- a zero line, and additional lines corresponding to the number of angles into which the angle is to be divided described on said surface of said solid geometric figure with all of said additional lines passing through one point on said zero line,
- a first radial means positioned at said zero line and adjustable for placement at one of the legs of the angle to be divided,
- a rotating adjustable means to rotate around said axis to follow a said additional line,
- said rotating adjustable means including an adjustable element extending in a plane perpendicular to said axis and slidable over said surface and thereby crossing said additional lines at points to designate placements of said rotating adjustable means to divide the angle into equal or proportional parts.
Dependencies are inferred from the claim text.