GB1046747A - Electromagnetic horns - Google Patents

Electromagnetic horns

Info

Publication number
GB1046747A
GB1046747A GB35455/64A GB3545564A GB1046747A GB 1046747 A GB1046747 A GB 1046747A GB 35455/64 A GB35455/64 A GB 35455/64A GB 3545564 A GB3545564 A GB 3545564A GB 1046747 A GB1046747 A GB 1046747A
Authority
GB
United Kingdom
Prior art keywords
horn
aug
hole
enamel
air
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
GB35455/64A
Inventor
John Dougall
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB35455/64A priority Critical patent/GB1046747A/en
Priority to US479594A priority patent/US3456254A/en
Priority to DEL40290U priority patent/DE1925132U/en
Publication of GB1046747A publication Critical patent/GB1046747A/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)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

1,046,747. Horns. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 12, 1965 [Aug. 28, 1964], No. 35455/64. Heading G5S. During stoving of an enamelled electromagnetic horn of the type shown, air in the horn compartment expands through the liquid enamel and is prevented from re-entering the horn enclosure when the enamel sets; the tuning of the horn is thus affected. The invention avoids this by providing holes in the horn casing through which the air expands and an expansible container sealing the space over the hole. One hole is sealed by a bellows arrangement 25, the other by a resilient annular sleeve.
GB35455/64A 1964-08-28 1964-08-28 Electromagnetic horns Expired GB1046747A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB35455/64A GB1046747A (en) 1964-08-28 1964-08-28 Electromagnetic horns
US479594A US3456254A (en) 1964-08-28 1965-08-13 Electromagnetic horns
DEL40290U DE1925132U (en) 1964-08-28 1965-08-23 ELECTROMAGNETIC HORN.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35455/64A GB1046747A (en) 1964-08-28 1964-08-28 Electromagnetic horns

Publications (1)

Publication Number Publication Date
GB1046747A true GB1046747A (en) 1966-10-26

Family

ID=10377931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35455/64A Expired GB1046747A (en) 1964-08-28 1964-08-28 Electromagnetic horns

Country Status (3)

Country Link
US (1) US3456254A (en)
DE (1) DE1925132U (en)
GB (1) GB1046747A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069792A5 (en) * 1969-11-21 1971-09-03 Bosch
US9174572B2 (en) 2012-07-05 2015-11-03 GM Global Technology Operations LLC Electric horn device for a vehicle and vehicle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1376433A (en) * 1970-11-07 1974-12-04 Absalom R R Electric sound-producing device
US3886546A (en) * 1973-04-13 1975-05-27 Nippon Denso Co Electric horn
US4212001A (en) * 1976-08-31 1980-07-08 Nippondenso Co., Ltd. Electric horn
DE2965458D1 (en) * 1978-11-01 1983-07-07 Lucas Ind Plc Electrical connection, method of making it, and electrical horn comprising such a connection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB308629A (en) * 1927-11-23 1929-03-25 Cie Ind & Commerciale Du Cycie Improvements in electrically operated horns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069792A5 (en) * 1969-11-21 1971-09-03 Bosch
US9174572B2 (en) 2012-07-05 2015-11-03 GM Global Technology Operations LLC Electric horn device for a vehicle and vehicle

Also Published As

Publication number Publication date
DE1925132U (en) 1965-10-07
US3456254A (en) 1969-07-15

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