GB191309644A - Improvements in Telephonic Reproducers. - Google Patents

Improvements in Telephonic Reproducers.

Info

Publication number
GB191309644A
GB191309644A GB191309644DA GB191309644A GB 191309644 A GB191309644 A GB 191309644A GB 191309644D A GB191309644D A GB 191309644DA GB 191309644 A GB191309644 A GB 191309644A
Authority
GB
United Kingdom
Prior art keywords
reproducers
telephonic
slits
plate
supplypipe
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
Curt Stille
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 GB191309644A publication Critical patent/GB191309644A/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
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Telephone Set Structure (AREA)
  • Electromagnets (AREA)

Abstract

9644. Stille, C. April 24, 1912, [Convention date]. Telephones.-Compressed air from a supplypipe C is admitted to an earpiece B through slits s in a fixed diaphragm F and corresponding slits s<1> in a spring-controlled plate m. The plate m is vibrated laterally in response to telephone currents which affect the armature a of the magnet l, the position of which is adjustable bv the screw r. Fig. 3 is an enlarged sectional view showing the structure of the slitted plates.
GB191309644D 1912-04-24 1913-04-24 Improvements in Telephonic Reproducers. Expired GB191309644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287865T 1912-04-24

Publications (1)

Publication Number Publication Date
GB191309644A true GB191309644A (en) 1913-07-24

Family

ID=6059598

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191309644D Expired GB191309644A (en) 1912-04-24 1913-04-24 Improvements in Telephonic Reproducers.
GB191510669D Expired GB191510669A (en) 1912-04-24 1915-07-22 Improvements in telephonic sound reproducing apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB191510669D Expired GB191510669A (en) 1912-04-24 1915-07-22 Improvements in telephonic sound reproducing apparatus

Country Status (4)

Country Link
DE (2) DE287865C (en)
FR (1) FR456985A (en)
GB (2) GB191309644A (en)
NL (1) NL1734C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2967094B2 (en) * 1995-11-02 1999-10-25 工業技術院長 Aluminum nitride sintered body and method for producing aluminum nitride powder

Also Published As

Publication number Publication date
DE288502C (en) 1915-11-03
NL1734C (en) 1916-12-01
FR456985A (en) 1913-09-09
DE287865C (en) 1915-10-06
GB191510669A (en) 1921-07-11

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