GB210172A - Improvements in or relating to audible warning signals - Google Patents

Improvements in or relating to audible warning signals

Info

Publication number
GB210172A
GB210172A GB2942622A GB2942622A GB210172A GB 210172 A GB210172 A GB 210172A GB 2942622 A GB2942622 A GB 2942622A GB 2942622 A GB2942622 A GB 2942622A GB 210172 A GB210172 A GB 210172A
Authority
GB
United Kingdom
Prior art keywords
armature
relating
contacts
warning signals
audible warning
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
GB2942622A
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 GB2942622A priority Critical patent/GB210172A/en
Publication of GB210172A publication Critical patent/GB210172A/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 Pumps (AREA)

Abstract

210,172. Monnot, J. F. Oct. 27, 1922. Electromagnetic interrupters.-The diaphragm 1 of a. motor-horn is positively operated in both directions by means of two electromagnets 6, 7 mounted on either side of an armature 8, the circuits of the electromagnets being closed alternately by means of an interrupting device which comprises a bell-crank lever 10 pivoted to one end of the rod 9 carrying the armature. Normally a. spring 14 maintains contacts 11, 13 in engagement, so that when the external circuit is closed magnet 7 is energized to deflect armature 8 to the left, the lever 10 being tilted to open contacts 11, 13 and to close contacts 11, 12 in the circuit of magnet 6.
GB2942622A 1922-10-27 1922-10-27 Improvements in or relating to audible warning signals Expired GB210172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2942622A GB210172A (en) 1922-10-27 1922-10-27 Improvements in or relating to audible warning signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2942622A GB210172A (en) 1922-10-27 1922-10-27 Improvements in or relating to audible warning signals

Publications (1)

Publication Number Publication Date
GB210172A true GB210172A (en) 1924-01-28

Family

ID=10291378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2942622A Expired GB210172A (en) 1922-10-27 1922-10-27 Improvements in or relating to audible warning signals

Country Status (1)

Country Link
GB (1) GB210172A (en)

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