Carbon Holder for Electric Arc Lamps
Description:
Patent for improvements made to the carbon holder for electric arc lamps to improve efficiency in replacing the lamps. To improve upon the current design, the patent illustrates and describes a new level clutch system to allow movement, as opposed to the gravity-based design previously implemented.
Date:
March 17, 1914
Creator:
Lacy, Benjamin Burton & Elrod, Henry E.
Partner:
UNT Libraries Government Documents Department