GB1161791A - Electromagnetic Horns. - Google Patents

Electromagnetic Horns.

Info

Publication number
GB1161791A
GB1161791A GB8841/66A GB884166A GB1161791A GB 1161791 A GB1161791 A GB 1161791A GB 8841/66 A GB8841/66 A GB 8841/66A GB 884166 A GB884166 A GB 884166A GB 1161791 A GB1161791 A GB 1161791A
Authority
GB
United Kingdom
Prior art keywords
armature
washer
core
note
contacts
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
GB8841/66A
Inventor
Maurice James Allport
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 GB8841/66A priority Critical patent/GB1161791A/en
Priority to US616297A priority patent/US3373258A/en
Priority to JP42012640A priority patent/JPS5132080B1/ja
Publication of GB1161791A publication Critical patent/GB1161791A/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)
  • Electromagnets (AREA)
  • Particle Accelerators (AREA)

Abstract

1,161,791. Electromagnetic horns. JOSEPH LUCAS (INDUSTRIES) Ltd. 8 Feb., 1967 [1 March, 1966], No. 8841/66. Heading G5J. [Also in Division H1] An electromagnetic horn has a casing 10 supporting an electromagnet coil 13 and core 14 with a plunger armature 17 on a diaphragm 16 through which an armature extension 18 passes to support a tone plate 23. A washer 21 on the armature engages a member 24 to move it when the armature is attracted by the electromagnet. The member 24 carries one of a pair of contacts 22 in series with the electromagnet coil 13. In Fig. 2 (not shown), a projection (25) on the member 24 wears the washer 21 to the same extent as domed contacts so as to ensure consistent operation and a constant note. The core 14 is screwed into the casing end 12 to set the contact operating point and the note and then welded in position.
GB8841/66A 1966-03-01 1966-03-01 Electromagnetic Horns. Expired GB1161791A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8841/66A GB1161791A (en) 1966-03-01 1966-03-01 Electromagnetic Horns.
US616297A US3373258A (en) 1966-03-01 1967-02-15 Electromagnetic horns
JP42012640A JPS5132080B1 (en) 1966-03-01 1967-03-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8841/66A GB1161791A (en) 1966-03-01 1966-03-01 Electromagnetic Horns.

Publications (1)

Publication Number Publication Date
GB1161791A true GB1161791A (en) 1969-08-20

Family

ID=9860258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8841/66A Expired GB1161791A (en) 1966-03-01 1966-03-01 Electromagnetic Horns.

Country Status (3)

Country Link
US (1) US3373258A (en)
JP (1) JPS5132080B1 (en)
GB (1) GB1161791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180417A5 (en) * 1972-04-11 1973-11-23 Lucas Electrical Co Ltd
EP0011920A2 (en) * 1978-11-01 1980-06-11 LUCAS INDUSTRIES public limited company Electrical connection, method of making it, and electrical horn comprising such a connection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670188A (en) * 1971-07-16 1972-06-13 Anton Voros Jr Electromagnetic reciprocating motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL289136A (en) * 1962-03-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180417A5 (en) * 1972-04-11 1973-11-23 Lucas Electrical Co Ltd
EP0011920A2 (en) * 1978-11-01 1980-06-11 LUCAS INDUSTRIES public limited company Electrical connection, method of making it, and electrical horn comprising such a connection
EP0011920A3 (en) * 1978-11-01 1980-08-20 Lucas Industries Plc Electrical connection, method of making it, and electrical horn comprising such a connection; electrical coil assembly and electrical horn comprising such a coil assembly

Also Published As

Publication number Publication date
US3373258A (en) 1968-03-12
JPS5132080B1 (en) 1976-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired