Cylinder Duplication; Leon Douglass: "On This Day in Phonographic History..."

By phonogfp
March 17, 2021 in Cylinder Records

https://forum.antiquephono.org/topic/430-cylinder-duplication-leon-douglass-on-this-day-in-phonographic-history/

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Posted March 17, 2021

"On This Day in Phonographic History..."

March 17, 1892: Leon F. Douglass filed for a U.S. patent for “Method of and Means for Duplicating or Transferring Phonographic Records.” This involved simply attaching the reproducer of one phonograph to the recorder of another phonograph with a squeezed rubber tube, resulting in a slight vacuum.

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