[D8101E], Letter from Sigmund Bergmann to Thomas Alva Edison, October 14th, 1881

Item

Abstract

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.

Date

1881-10-14

Decade

1880-1889

Type

Identifier

D8101E

Folder Set

D8101

Title

[D8101E], Letter from Sigmund Bergmann to Thomas Alva Edison, October 14th, 1881

Microfilm ID

57:13

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University