[D9211AAO], Letter from Alfred Ord Tate to North American Phonograph Co, Thomas Butler, July 6th, 1892
https://edisondigital.rutgers.edu/document/D9211AAO
Transcription
July 6, 1892. Mr. Thomas Butler, Treasurer, The North American Phonograph Company, New York City. Dear Sir: Your letter of 29th ultimo to Mr. Edison, enclosing copy of a communication received from the Ohio Phonograph Company relative to the expansion of cylinders in warm weather, was duly received. Mr. Edison is giving attention to this matter of the expansion of cylinders, and hopes to be able to remedy the trouble complained of. The problem is not as easy as it would seem. There is a difference of expansion between the steel thread and the wax; the only way that this could be overcome to any great extent would be to use a very much smaller reproducer ball than those in use at present, so that the point would remain in track of record notwithstanding the expansion. Yours truly, Private Secretary.