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