GB162120A - Improvements in electrically operated diaphragm horns - Google Patents

Improvements in electrically operated diaphragm horns

Info

Publication number
GB162120A
GB162120A GB392220A GB392220A GB162120A GB 162120 A GB162120 A GB 162120A GB 392220 A GB392220 A GB 392220A GB 392220 A GB392220 A GB 392220A GB 162120 A GB162120 A GB 162120A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
secured
springs
base
plate
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
GB392220A
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 GB392220A priority Critical patent/GB162120A/en
Publication of GB162120A publication Critical patent/GB162120A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G10K9/15—Self-interrupting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

162,120. Quint, B. A., and Kearney, A. R. Feb. 9, 1920. Diaphragm vibrators.-In an electrically-operated diaphragm vibrator the base-plate a is stamped from sheet metal and a cup-shaped housing b is secured thereto by the hollow core c. A striking-pin d, attached to the diaphragm, passes through the core c. The vibrator comprises three springs f, f<1>, f<2>, the lowest carrying the armature g and the uppermost forming a stop, by the adjustment of which the note may 'be altered. The two lower springs f, f<1> carry the make and break contacts g<1>. The three springs are mounted on the distance-pieces g<2>, and a cover h<1> is secured in position by the bridge-piece h. The magnetizing-coil e is wound on a former and may be readily removed. The diaphragm is secured to the base-plate by bending over the flange i of the trumpet i<1>.
GB392220A 1920-02-09 1920-02-09 Improvements in electrically operated diaphragm horns Expired GB162120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB392220A GB162120A (en) 1920-02-09 1920-02-09 Improvements in electrically operated diaphragm horns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB392220A GB162120A (en) 1920-02-09 1920-02-09 Improvements in electrically operated diaphragm horns

Publications (1)

Publication Number Publication Date
GB162120A true GB162120A (en) 1921-04-28

Family

ID=9767410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB392220A Expired GB162120A (en) 1920-02-09 1920-02-09 Improvements in electrically operated diaphragm horns

Country Status (1)

Country Link
GB (1) GB162120A (en)

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