287 His work recording the sound the piano must certainly have
taken place the third floor Building 5.
By 1920, four experimenters were work the third floor: Mr. 30-31; see also NPS, "HSR, Part
I, Metallurgical Laboratory, Building No.291 worked the laboratory until the
1930s. Whelan began working for Edison 1902 and became the
laboratory photographer around 1915. His printing operation may have moved Building 1914,
when Edison approved his taking over Dr.
288 "Report Work Done the Laboratory," John Constable TAE, October 23, 1920, Engineering
Department Records, Box 11, Edison folder.
Samuels, Mr. carried out
experiments phonograph records and also worked Building developed
a method electroplating masters with silver and copper and also produced an
"air“ reproducer which used compressed air increase the volume phonograph
playback.288
287 Weber [?] Gilmore, April 1902, Record Manufacturing Division Records, Box 15; Memorandum
of Frank Dyer, January 1909, Record Manufacturing Division Records, Box 16.
288 William Meadowcroft Edison, March 29, 1912 (in 1912, Phonograph-General, 5). The department was kept busy making prints machines and products for
advertising purposes and meeting the insatiable public appetite for images of
Thomas Edison. Huenlich. (hereafter cited Historical Research
Dept. Cummings unpacked, tested and examined eight disc
phonographs from the Silver Lake plant each week and reported his findings to
factory inspectors.
280 MRH TAE, January 12, 1914 (in 1914, WOL-Photograph Department).)
Through the early part the twentieth century, the photographic studio was kept
busy making photographs the Edison plant and products; also handled the
82
. Cummings, and Mr.289
Bill Lyman.). Lyman ran small studio and dark room during the period after
1900.Pierman’s work was billed the accounts musical experiments.
202 Norman Speiden, "Plan Action the Project Care for the Laboratory Group," June 28, 1939,
Records Historical Research Department, Thomas Edison, Inc.
291 Norman Speiden interview, June 1973, Oral History Project, pp. Greene’s former room the
"Galvanometer Room. 4," 4.“290
Joseph Whelan.292 (See 167 for more Joseph Whelan. Harris, Mr. Harris worked phonograph
governor development, and Samuels electrical instrument repair and
standardization. was supervised Harris, was Huenlich, who inspected
Ediphones
