Inventors:
Jeffrey Erdfarb - Teaneck NJ, US
International Classification:
G01B 3/10
Abstract:
A measuring device, such as a ruler, tape measure, etc. includes a first edge defining a first region having a first set of indicia corresponding to a first linear scale, and also includes a second edge defining a second region having a second set of indicia corresponding to a second linear scale. Advantageously, each set of indicia consists of hash marks and corresponding numerical values printed or etched on the measuring device. The first linear scale may be actual, e. g. , the indicia are spaced apart and labeled with numerical values that correspond to the actual distance between the indicia, while the second linear scale may be non-actual, e. g. , the indicia are not spaced apart and labeled with numerical values that correspond to the actual distance between the indicia, such as a linear scale employed on an engineering or architectural drawing. The second set of indicia of the second linear scale are spaced apart and labeled with numerical values that correspond to the scaled distance between the indicia, and therefore provide an indication of the actual length of an object upon measurement of the length of a corresponding feature on a drawing drawn to scale.