Accession Number : AD0164281

Title :   Device for Measuring the Distance Between Two Parallel Lines.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Edwards,William R. ; Peterson,Luther ; Kelly,Thomas

Report Date : 01 JUN 1971

Pagination or Media Count : 6

Abstract : The patent describes an optical device for measuring distances consisting of a fixed prism and two movable prisms. The movable prisms are driven relative to the fixed prism by means of a rack and pinion. A calibrated dial coupled with the pinion records the distance the prisms have moved.

Descriptors :   *Distance measuring equipment, *Optical instruments, *Patents, Prisms(Optics), Drafting

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE