GB191212545A - Improvements in Combined Telephonic Transmitters and Receivers. - Google Patents

Improvements in Combined Telephonic Transmitters and Receivers.

Info

Publication number
GB191212545A
GB191212545A GB191212545DA GB191212545A GB 191212545 A GB191212545 A GB 191212545A GB 191212545D A GB191212545D A GB 191212545DA GB 191212545 A GB191212545 A GB 191212545A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
receivers
combined
telephonic transmitters
telephones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
William Barber Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB191212545A publication Critical patent/GB191212545A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

12,545. Thompson, W. B. June 20, 1911, [Convention date]. Microphones; telephones, mounting and supporting; telephones.-A microphone and receiver are mounted in a single casing 12, the magnets 30 and diaphragm 33 of the receiver being mounted between the diaphragm 21 and microphone-electrode 19, which are connected by an insulating-rod 20 passing through holes in the diaphragm 33 and shelf 28. The diaphragm 21 is supported from the walls of the casing by stretched wires 22.
GB191212545D 1911-06-20 1912-05-28 Improvements in Combined Telephonic Transmitters and Receivers. Expired GB191212545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191212545XA 1911-06-20 1911-06-20

Publications (1)

Publication Number Publication Date
GB191212545A true GB191212545A (en) 1912-09-12

Family

ID=32597019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191212545D Expired GB191212545A (en) 1911-06-20 1912-05-28 Improvements in Combined Telephonic Transmitters and Receivers.

Country Status (1)

Country Link
GB (1) GB191212545A (en)

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