STOPPER LAMP SPECIFICATIONS
CD 1964040 E&MP26.029
April 25, 1933
A free-hand sketch with specifications in long-hand was penned on a letterhead by George Westinghouse during the excitement surrounding the lighting of the World’s Fair in 1893.
The original sketch now hangs in the office of Dr. A.M. Hageman, Manager of Engineering of the Westinghouse Lamp Company, Bloomfield, New Jersey, and will be followed in making replicas of the stopper lamp for demonstration purposes at the Westinghouse exhibit during the Century of Progress.
The sketch reads:
This sketch is illustrative. The top of steel mould will form a guide for cutting off lead after driving. The curvature will not be great, so the stopper need not be altered. This will leave the lead thicker in the center. A reamer to finish the mould may be advantageous.