GB191410473A - Improvements in or relating to Electric Diaphragm Alarms. - Google Patents

Improvements in or relating to Electric Diaphragm Alarms.

Info

Publication number
GB191410473A
GB191410473A GB191410473DA GB191410473A GB 191410473 A GB191410473 A GB 191410473A GB 191410473D A GB191410473D A GB 191410473DA GB 191410473 A GB191410473 A GB 191410473A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
bracket
tubular member
magnet
alarms
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
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.)
Thomas Crosbee & Sons Ltd
Original Assignee
Thomas Crosbee & Sons 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 Thomas Crosbee & Sons Ltd filed Critical Thomas Crosbee & Sons Ltd
Application granted granted Critical
Publication of GB191410473A publication Critical patent/GB191410473A/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

10,473. Crosbee & Sons, T., and Rogers, T. S. April 28. Diaphragm horns.-An electric diaphragm horn has its electro-magnet and its armature separately adjustable towards the diaphragm. The diaphragm b is mounted in a case having a split tubular member g secured thereto and adapted to have the electro-magnet casing e<1> clamped within it by a split bracket f<1>, which is clamped outside the tubular member. An arm f on the bracket carries the armature d, and an extension f<2> on the bracket carries the usual contact-screw h. The striker arm c is attached to the diaphragm b and passes through the magnet core. Insulation may be placed between the bracket f<1> and the tubular member g and between the member g and the electromagnet.
GB191410473D 1914-04-28 1914-04-28 Improvements in or relating to Electric Diaphragm Alarms. Expired GB191410473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191410473T 1914-04-28

Publications (1)

Publication Number Publication Date
GB191410473A true GB191410473A (en) 1914-09-24

Family

ID=32583654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191410473D Expired GB191410473A (en) 1914-04-28 1914-04-28 Improvements in or relating to Electric Diaphragm Alarms.

Country Status (1)

Country Link
GB (1) GB191410473A (en)

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