GB837025A - Audible alarm device - Google Patents

Audible alarm device

Info

Publication number
GB837025A
GB837025A GB903457A GB903457A GB837025A GB 837025 A GB837025 A GB 837025A GB 903457 A GB903457 A GB 903457A GB 903457 A GB903457 A GB 903457A GB 837025 A GB837025 A GB 837025A
Authority
GB
United Kingdom
Prior art keywords
alarm device
audible alarm
striker
wheel
water
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
GB903457A
Inventor
George Allen
Douglas Michael Venison
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.)
Matthew Hall and Co Ltd
Original Assignee
Matthew Hall and Co 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 Matthew Hall and Co Ltd filed Critical Matthew Hall and Co Ltd
Priority to GB903457A priority Critical patent/GB837025A/en
Publication of GB837025A publication Critical patent/GB837025A/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
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/068—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube hydraulically operated; pneumatically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

837,025. Bells and gongs. HALL & CO. Ltd., M. June 18, 1958 [March 19, 1957], No. 9034/57. Class 13. A striker 4 sliding longitudinally in a bearing- block 17 is thrown against a bell or gong 1 by a cam 14 on the axle 11 of a water-wheel 3. The striker is returned by gravity, as shown, or by a spring. The water feed to the wheel may be controlled by a heat-responsive element in a sprinkler system.
GB903457A 1957-03-19 1957-03-19 Audible alarm device Expired GB837025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB903457A GB837025A (en) 1957-03-19 1957-03-19 Audible alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB903457A GB837025A (en) 1957-03-19 1957-03-19 Audible alarm device

Publications (1)

Publication Number Publication Date
GB837025A true GB837025A (en) 1960-06-09

Family

ID=9864122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB903457A Expired GB837025A (en) 1957-03-19 1957-03-19 Audible alarm device

Country Status (1)

Country Link
GB (1) GB837025A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133191A (en) * 1983-01-07 1984-07-18 Graham Clenton Rawlins Warning alarm for mining machinery
WO1997049602A1 (en) * 1996-06-21 1997-12-31 Erich Sussmann Acoustic signal transmitter for a diver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133191A (en) * 1983-01-07 1984-07-18 Graham Clenton Rawlins Warning alarm for mining machinery
WO1997049602A1 (en) * 1996-06-21 1997-12-31 Erich Sussmann Acoustic signal transmitter for a diver

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