US518959A - kqlbassieff - Google Patents

kqlbassieff Download PDF

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Publication number
US518959A
US518959A US518959DA US518959A US 518959 A US518959 A US 518959A US 518959D A US518959D A US 518959DA US 518959 A US518959 A US 518959A
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US
United States
Prior art keywords
piece
kqlbassieff
pole
center
central
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Expired - Lifetime
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Definitions

  • Patented May '1, 1894 Patented May '1, 1894.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)

Description

.m Model.) I 2 Shets-Shet 1.
V E. V." KOLBASSIEPP.
TELEPHONE.
Patented May '1, 1894.
2 Sheets-Sheea 2.
TELEPHONE.
,959. Patented May 1, 1894 f1 WE EWEEEEJ H i g? h V shoe magnets all arranged wholly within said; nected to the opposite arm of each magnet, a casing and Whollyin a common interior plane conductive coil surrounding the central p916- transverse to the center of said casing, and piece between the latter and the cyl ndrical also in radial relation to said center,and furpole-piece, and a, diaphragm overlylng the 5 thermore with the extremities of their arms cuter ends of said pole-pieces, substantially 15 adjacent to said center, a central pole-piece as set forth.
structurally connected to one armef eaeh BUGENIJ VICTOBOVlTClI KOLBASSIEFF. magnet, a, cylindrical pole-piece of opposite Witnesses: v polarity from said central pole-piece and sum MICHAEL N. GALLAGHAN,
Io rounfiing the same and also structurally con- 7 S. KAYNAKOFF.
US518959D kqlbassieff Expired - Lifetime US518959A (en)

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Publication Number Publication Date
US518959A true US518959A (en) 1894-05-01

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ID=2587758

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US518959D Expired - Lifetime US518959A (en) kqlbassieff

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926398A (en) * 1987-10-30 1990-05-15 Divelink Pty Ltd Pressure compensated communication system
US5022100A (en) * 1990-09-28 1991-06-11 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for underwater acoustic receiving system installation in diving helmet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926398A (en) * 1987-10-30 1990-05-15 Divelink Pty Ltd Pressure compensated communication system
US5022100A (en) * 1990-09-28 1991-06-11 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for underwater acoustic receiving system installation in diving helmet

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