1952 had prosperous instrument division
making electrical resistance bulbs, temperature indicators and thermal time delay
relays. Building was converted museum use and
opened the public 1948., 1952. Thomas Edison, Inc. Brennan, May 23, 1944, Historical Research Dept., Annual Report, 1953, the collections the Charles
Edison Fund.laboratory were given former Edison employees under the supervision the
corporation; tours given during the war were subject tight security and were
required have police escort. Eckert, March 26,
1943; Plan Action the Project Care for the Laboratory Group, Norman Speiden, June 28, 1939, and
Norman Speiden W. also provided control devices and instrumentation for the aircraft
industry. consisted nine
laboratory rooms and nine offices. The staff and equipment which had been
installed Building were transferred the new building February
1953633
In 1954 Charles Edison contacted the National Park Service for advice on
preserving Glenmont; subsequent negotiations lead the donation Edison’s
house the nation. Charles Edison Fund collections. After World War the laboratory was
operated public use facility the Thomas Edison foundation which had a
lease from the Edison Industries. The laboratories were equipped carry out
experiments physical, chemical and engineering research. Ellwood Norman Speiden and notations, February 12, 1942; Report Mr.E.
In 1952, ground was broken for new laboratory Watchung Avenue, few
hundred feet the south the old Phonograph Works. .A.
533 "The New Laboratory," Thomas Edison, Inc.
534 Historian’s Note 129. The Director of
Research was Dr. Donald Collier.
Weig James Whitehouse [Regional Director?], Northeast Region, NPS, November 13, 1967. This Note summation memorandum from’ Superintendent Melvin J. made wide range batteries from heavy duty
nickel iron storage batteries for railroad cars the battery that powered the light
in coal miners’ caps.631
The Edison family had long looked the West Orange laboratory museum to
the memory Edison the inventor. stood ready apply the
expertise had gained manufacturing war material and was eager join the
military industrial complex.534 The Edison Home National Historic Site became part of
159
.532
530 E.630
At the end World War II, Thomas Edison, Inc.
631 Annual Report, Thomas Edison, Inc. The dictating machine division successfully manufactured a
range 'Voicewriter" equipment which included tape, cylinder, and disc
recorders.
532 NPS, "HSR, Physics Laboratory, Building 1," 10
