[D8101E], Letter from Sigmund Bergmann to Thomas Alva Edison, October 14th, 1881
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Title
[D8101E], Letter from Sigmund Bergmann to Thomas Alva Edison, October 14th, 1881
Editor's Notes
Discusses potential bulb defects; maintains that it's not the sockets, or the dipping of the rings or screws which he notes and will attend to. Rather, as he convinced Upton, the sockets were perfect and the problem is probably the "material used in cementing is too much like chalk, and the leverage brought into play in screwing the lamps into the sockets pulls them apart, and not any untrueness of the sockets." He says, however, that he would be "very glad" to have someone sent down to inspect the sockets and to pass them in the future.
Author
Recipient
Mentioned
Date
1881-10-14
Type
Folder/Volume ID
D8101-F
Microfilm ID
57:13
Document ID
D8101E
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University