[MBLB4011], Letter from Charles Batchelor to Thomas Alva Edison, November 19th, 1881

https://edisondigital.rutgers.edu/document/MBLB4011

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Title

[MBLB4011], Letter from Charles Batchelor to Thomas Alva Edison, November 19th, 1881

Editor's Notes

Find a big fault in the Opera machines. After a little running either the copper commutator bars raise up or the micas lower, so we have to file the coppers. When the coppers raise above the micas, intervening space gets filled with copper [dust] from the brushes and crosses. Some of the commutators have consequently gotten almost red hot; they're not nearly as solid as the old machines.

Date

1881-11-19

Decade

1880-1889

Type

Folder/Volume ID

MBLB4-F

Microfilm ID

93:497

Document ID

MBLB4011

Publisher

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