[PT031AAD1], Technical Note, Thomas Alva Edison, November 24th, 1888

Item

Abstract

Caveat 113 filed Dec. 17 1888: The object of the invetnion in this Caveat is to improve the phonograph especially in those devices which relate to the automatic determination of the exact position of the recording & reproducing ;points on the Recording Cylinder whether thick or thin and without the necessity of adjusting the rotation each time a new or a diferent size recording phongram blank is used. [12 1/2 pqges manuscript text plus 36 drawings - many of the drawings appear related to notebook sketches in November]

Date

1888-11-24

Decade

1880-1889

Identifier

PT031AAD1

Folder Set

PT031AAD

Title

[PT031AAD1], Technical Note, Thomas Alva Edison, November 24th, 1888

Microfilm ID

113:400

Publisher

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