[N106001], Technical Note, Charles Batchelor, September 28th, 1880
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Title
[N106001], Technical Note, Charles Batchelor, September 28th, 1880
Editor's Notes
carbon loop "marked for showing positoin of faults." Experimental pump with a twisted fall tube (caused cracking). More pump expts, varying diameter of contraction & fall tubes; table of lamp test results indicating number and location of various filament faults. [These continue through Oct 9]. Fr 466 table of # good/defective lamps on pumps, through Oct 12. 469 "lots of lamps as sent up to the laboratory (daily totals through Oct 5); "Lot 1 to consist of 159 lamps of fibres generally not picked but made from the fishing poles we have bought." Lots 1-4. fR 472 Test of 28 different pumps (gives tube & contraction dimensions, lbs Hg per min. Fr 479 more lamp tests with trouble spots indicated by number.
Author
Date
1880-09-28
Type
Folder/Volume ID
N106-F
Microfilm ID
36:460
Document ID
N106001
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University