Telephone-Transmitter.

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Description

Patent for a telephone-transmitter "with a diaphragm and carbon button carried thereby, of a spring-supported flaring conical carbon-cell provided with a flange covered with soft material and resting on the carbon button carried by the diaphragm, the carbon-cell being filled with granulated carbon resting in contact with the carbon button" (lines 13-19). This is meant to optimize the volume of sound being transmitted.

Physical Description

[2] p. : ill. ; 23 cm.

Creation Information

Alexander, Horace C. October 20, 1896.

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  • Main Title: Telephone-Transmitter.
  • Added Title: Telephone Transmitter.

Description

Patent for a telephone-transmitter "with a diaphragm and carbon button carried thereby, of a spring-supported flaring conical carbon-cell provided with a flange covered with soft material and resting on the carbon button carried by the diaphragm, the carbon-cell being filled with granulated carbon resting in contact with the carbon button" (lines 13-19). This is meant to optimize the volume of sound being transmitted.

Physical Description

[2] p. : ill. ; 23 cm.

Notes

Application filed January 6, 1895. Serial No. 574,488. (No model.)

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Texas Patents

United States patents filed by Texas inventors before 1900. A majority of the patents are for agricultural and industrial applications.

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Creation Date

  • October 20, 1896

Accepted Date

  • October 20, 1896

Submitted Date

  • January 6, 1895

Added to The Portal to Texas History

  • Aug. 4, 2011, 5:55 p.m.

Description Last Updated

  • March 19, 2024, 6:41 p.m.

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Alexander, Horace C. Telephone-Transmitter., patent, October 20, 1896; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174413/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.

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