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