Improvement in Throttle-Valve Stands and Stems.
Description:
Patent for "a new arrangement of support for the stem of a throttle-valve, and has for its object to facilitate the lubricating of the screw and cause the parts to be firmly held in place." (Lines 19-23) Includes instructions and illustrations.
Date:
April 2, 1872
Creator:
Compant, John M. & Krauskopf, Engelbert
Partner:
UNT Libraries Government Documents Department