Small ruling machine at Mount Wilson Observatory

Small ruling machine at Mount Wilson Observatory. The 900-tooth spacing gear is seen edgewise on the right. The driving worm engages the top of the gear. Pitch of main screw is 1.5 mm. The diamond carriage is shown on the flat-topped monorail that was later replaced by a cylindrical rail., Credit Line: Photograph by Henry Kurtz, Bausch and Lomb Optical Co., courtesy of AIP Emilio Segrè Visual Archives
Abstract/Description: Small ruling machine at Mount Wilson Observatory. The 900-tooth spacing gear is seen edgewise on the right. The driving worm engages the top of the gear. Pitch of main screw is 1.5 mm. The diamond carriage is shown on the flat-topped monorail that was later replaced by a cylindrical rail.
Subject(s): Observatories
Equipment and supplies
Laboratories
Diffraction gratings
Optical spectroscopy
Astronomy
Mount Wilson Observatory
Date Created: circa 1940
Credit Line: Photograph by Henry Kurtz, Bausch and Lomb Optical Co., courtesy of AIP Emilio Segrè Visual Archives
Catalog ID: Mount Wilson Observatory F2