US1365268A - Telephone-transmitter mouthpiece - Google Patents

Telephone-transmitter mouthpiece Download PDF

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Publication number
US1365268A
US1365268A US405201A US40520120A US1365268A US 1365268 A US1365268 A US 1365268A US 405201 A US405201 A US 405201A US 40520120 A US40520120 A US 40520120A US 1365268 A US1365268 A US 1365268A
Authority
US
United States
Prior art keywords
mouthpiece
telephone
disk
shoulder
diaphragm
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 - Lifetime
Application number
US405201A
Other languages
English (en)
Inventor
Olliffe Clarence Evere Osborne
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
Priority to US405201A priority Critical patent/US1365268A/en
Priority to FR525171A priority patent/FR525171A/fr
Application granted granted Critical
Publication of US1365268A publication Critical patent/US1365268A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection

Definitions

  • This invention relates to mouthpieces for telephone transmitters, and it consists in certain structural improvements in said mouthpieces, including the provision of a perforate disk detachably fitted in the frontal part thereof, said disk being constituted of a sublimating material having germicidal properties.
  • Figure 1 is a longitudinal sectional elevation through a telephone transmitter mouthpiece accord ing to this invention
  • Fig. 2 is a transverse section on the line 2-2 Fig. 1;
  • Fig. 3 is a front elevational view of the mouthpiece; and Fig. 4; is a broken away sectional view explanatory of the fitting of the mouthpiece in connection with hand combination receivers and transmitters.
  • the horn 12 is of bell section, with four or more longitudinal grooves 1e molded in its inner surface each terminating in a radially extending hole 15 located near the rim of the horn. In the case of a mouthpiece held or fixed in horizontal position, moisture condensed in the horn gravi tates into the lowermost of these grooves and thence flows to and out through the vent hole 15 into which the front end of said groove merges.
  • a drip hole 26 is formed in the lower part of the horn throat 27, and the horn carrier 28 is clipped onto the trans mitter by a pair of spring claws 29.
  • the rim portion of the horn is formed with a circular shoulder 16 within it. This shoulder. accomodates a disk 17, preferably Specification of Letters Patent.
  • the disk 17 is molded by pressing in suitable molds a mass of a plastic composition of porous sublimating substance having germicidal properties and preferably a fragrant odor.
  • the composition used in practice consists of a mixture of naphthalene 143 parts by weight, phenol 1 parts camphor 4 parts, menthol 1 part, parafor maldehyde l0 parts, oil of cinnamon 4 parts, and oil of verbena (lemon grass) 1 parts; but I am not, however, to be limited to the use of this particular composition of a pleasantly odorous germicidal compound.
  • This mixture molds cleanly to a firm hard cake, and its germicidal and odorous constituents sublimate or vaporize slowly; it remains effective as a germicidal device for several months in ordinary use. Germ laden vapor or spray is asepticized by contact with the disk, and an aseptic condition of the mouthpiece is thus attained.
  • the perforate disk also functions to improve the clarity of transmission of speech, probably by shielding the diaphragm from direct bombardment by the sound waves while converting the mouthpiece into a resonating chamber so that the diaphragm vibrates responsively only to undistorted sound waves.
  • a telephone transmitter mouthpiece comprising a flared conical member having an annular shoulder therein adjacent to its enlarged end and a plurality of radially extending openings at the rear of said shoulder, said member also having a plurality of longitudinallyextending grooves therein one communicating with each of said perforations, a perforated diaphragm seated on said shoulder, and flexible means for retaining said diaphragm on the shoulder.
  • a telephone transmitter mouthpiece constructed as set forth in claim 1, the perforated diaphragm comprising molded material containing sublimating germicidal sul stances.
  • a diaphragm adapted to be carried in the frontal part thereof, consisting of a perforated disk having fixed to the rear portion thereof one end of a helical spring, the other end of which is secured in the neck of said mouthpiece.
  • a telephone transmitter mouthpiece comprising a flared conical body portion interiorly grooved and having lateral perforations communicating with the grooves thereof, an annular shoulder in the frontal portion of said body, a perforated diaphragm disk of suhlimating germicidal material seated on said annular shoulder, and a helical spring in tension fixed at its forward end to said diaphragm, and at its rear end held in the neck portion of said mouthpiece.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US405201A 1920-08-21 1920-08-21 Telephone-transmitter mouthpiece Expired - Lifetime US1365268A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US405201A US1365268A (en) 1920-08-21 1920-08-21 Telephone-transmitter mouthpiece
FR525171A FR525171A (fr) 1920-08-21 1920-09-28 Perfectionnements aux pavillons des transmetteurs téléphoniques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US405201A US1365268A (en) 1920-08-21 1920-08-21 Telephone-transmitter mouthpiece
FR525171T 1920-09-28

Publications (1)

Publication Number Publication Date
US1365268A true US1365268A (en) 1921-01-11

Family

ID=23602705

Family Applications (1)

Application Number Title Priority Date Filing Date
US405201A Expired - Lifetime US1365268A (en) 1920-08-21 1920-08-21 Telephone-transmitter mouthpiece

Country Status (2)

Country Link
US (1) US1365268A (fr)
FR (1) FR525171A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643040A (en) * 1969-03-15 1972-02-15 Dentsu Central Kk Disinfectant for a telephone mouthpiece and a manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967081C (de) * 1951-04-06 1957-10-03 Fernsprech U Signalbaugesellsc Mikrotelefon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643040A (en) * 1969-03-15 1972-02-15 Dentsu Central Kk Disinfectant for a telephone mouthpiece and a manufacturing method thereof

Also Published As

Publication number Publication date
FR525171A (fr) 1921-09-16

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