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[D8369D], Letter from John F Ott to Thomas Alva Edison, April 10th, 1883

Title: [D8369D], Letter from John F Ott to Thomas Alva Edison, April 10th, 1883
Editor's Notes: Laboratory report. Had Force make glass vessels to fill with City gas, hydrocarbon deposition expt. Made clamping device for tie drawn fibers on. Bergmann repaired small rollers for rolling Pt clamps. "Fastened fiber on inside part by depositing hydrocarbon with an arc under petroleum. This worked to a certain extent, it being impossible to depoit sufficient quantity around the clamp and fiber, as it has a tendency to build up in thread and not in lumps." Small armature finished; ran 1 hour without heating at all. Gives results of electrical tests on motor. Had Bergman put more windings on its field mags. Meter expts.
Author: Ott, John F
Recipient: Edison, Thomas Alva
Mentioned: Bergmann & Co; Force, Martin N
Date: 1883-04-10
Type: Letter
Subject: Research and development; Electric light and power
Folder ID: D8369-F
Microfilm ID: 70:870
Document ID: D8369D
URL: https://edisondigital.rutgers.edu/document/D8369D
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 70

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