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[NB004002], Technical Note, Arthur Coyle Payne, June 1st, 1887

Title: [NB004002], Technical Note, Arthur Coyle Payne, June 1st, 1887
Editor's Notes: "H.H. #4. Received from Lawson in forms 15 carbons marked Ord. H. # 4 (see Hamilton's memoranda). Sent them to Hanson. Carbons looked fine, having smooth light silvery appearance. H. H. V. #4. Took out of tube, put up by Hamilton, preliminarized carbon that had been treated in mixture equal parts by weight of asphalt & Linseed Oil & subjected to gradual rise of temp. from 75[degrees] to 600[degrees] in 8 hourss (Fahr). Found 7 out of 20 broken in forms. Carbons were washed in Benzol, dried, put in forms marked H. H. V. #4 & sent to Lawson for final carbonization then well preliminarized, smooth & black."
Author: Payne, Arthur Coyle
Mentioned: Hamilton, Hugh De Coursey
Date: 1887-06-01
Type: Technical Note
Subject: Incandescent lamp
Folder ID: NB004-F
Microfilm ID: 101:587
Document ID: NB004002
URL: https://edisondigital.rutgers.edu/document/NB004002
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 101
License: CC0 1.0 Universal

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