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[NB070015], Technical Note, Jonas Walter Aylsworth, Thomas Alva Edison, May 30th, 1889

Title: [NB070015], Technical Note, Jonas Walter Aylsworth, Thomas Alva Edison, May 30th, 1889
Editor's Notes: First class cylinder-- Not 1/5 scratch of Reg--make splendid musical cyldr-- Very hard. Will probably require Saphire Cutters. Can't be filtered well-- Moulds nicely-- Only keenest edges on Recorder can be used on account hardness-- can track deep-- works well as a thick or thin veneer Low melting point, pours low temperature. The cylinder I tried was filtered-- 500 grammes Purified Cake Beeswax 400 grammes Carnuba 30 ditto dry salt, acetate Alumina Cook well to get of acetic color light brick red-- There is a great lot of precipitated alumina left, & this causes filter to work bad
Author: Aylsworth, Jonas Walter; Edison, Thomas Alva
Date: 1889-05-30
Type: Technical Note
Subject: Cylinder record and duplicating technology
Folder ID: NB070-F
Microfilm ID: 103:2
Document ID: NB070015
URL: https://edisondigital.rutgers.edu/document/NB070015
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 103

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