A precision rotating sector: Aperture variable and measurable while in motion

• 1 May 1922
• journal article
• Published by Elsevier in Journal of the Franklin Institute
• Vol. 193  (5) , 641-645
• https://doi.org/10.1016/s0016-0032(22)90579-4

Abstract

Keywords

• APERTURE VARIABLE
• MOTION
• PRECISION ROTATING SECTOR