Inclination angle ruler
OwnerEric Wattsinventor
Life of this patent
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Abstract
This invention pertains to a new type of ruler for measuring the angle of inclination of a portion of terrain from a topographical map. Topographical maps contain precise information relating to elevation changes and distances. These two pieces of information can be used together to devise a scale to measure the angle of inclination, or pitch, of any slope represented on the map. The invention is simply the inscription of such a scale on a straight, flat material. The invention can be made with a unique scale for any given map scale and contour interval height.
Claims1
A measurement tool for use with a topographical map having contour intervals, said tool comprising:
- a piece of material upon which definite lengths are defined by a set of marks including indicia indicative of an inclination angle, wherein the inclination of a slope may be determined by aligning the marks of the tool with the contour intervals of a topographical map.
Dependencies are inferred from the claim text.