GB191113641A - Improvements in Telephone and other Mouthpieces. - Google Patents

Improvements in Telephone and other Mouthpieces.

Info

Publication number
GB191113641A
GB191113641A GB191113641DA GB191113641A GB 191113641 A GB191113641 A GB 191113641A GB 191113641D A GB191113641D A GB 191113641DA GB 191113641 A GB191113641 A GB 191113641A
Authority
GB
United Kingdom
Prior art keywords
mouthpiece
mouthpieces
telephone
steinberger
faceplate
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
Louis Steinberger
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 GB191113641A publication Critical patent/GB191113641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

13,641. Steinberger, L. June 13, 1910, [Convention date]. Mouthpieces. - A mouthpiece for telephones &c. is made of a solid block 7, which may be of glass or other brittle material, with a number of tapering sound - passages 11, 12, 14. The mouthpiece may be fastened in the usual manner by the screw-threads 7<a>, or the faceplate may be made in two semicircular portions 3, 4 fitting in a groove 9 in the mouthpiece. The mouthpiece may be cleaned by boiling in water or a disinfecting-liquid.
GB191113641D 1910-06-13 1911-06-07 Improvements in Telephone and other Mouthpieces. Expired GB191113641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191113641XA 1910-06-13 1910-06-13

Publications (1)

Publication Number Publication Date
GB191113641A true GB191113641A (en) 1911-11-23

Family

ID=32509097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191113641D Expired GB191113641A (en) 1910-06-13 1911-06-07 Improvements in Telephone and other Mouthpieces.

Country Status (1)

Country Link
GB (1) GB191113641A (en)

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