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GB381227A - Improvements in electric sound signals - Google Patents

Improvements in electric sound signals

Info

Publication number
GB381227A
GB381227A GB1919831A GB1919831A GB381227A GB 381227 A GB381227 A GB 381227A GB 1919831 A GB1919831 A GB 1919831A GB 1919831 A GB1919831 A GB 1919831A GB 381227 A GB381227 A GB 381227A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
tone plate
ring
plate
resilient support
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
GB1919831A
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 GB1919831A priority Critical patent/GB381227A/en
Publication of GB381227A publication Critical patent/GB381227A/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
    • G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Steering Controls (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

381,227. Electric horns. AUSTIN, .L. J. F., Lichfield Chambers, Upper Priory, Birmingham. July 3, 1931, Nos. 19198 and 29450. [Class 40 (iv).] A tone plate connected to the diaphragm of an electrically-operated horn is provided with additional resilient suspension means. In one form, the resilient support is provided by a slotted ring j, r, Fig. 2, the portion j is clamped to the casing and the tone plate m is connected by rivets k and washers r<1> to two diametrically opposed holes in the part r. The slotted ring may be dished so that when the tone plate is connected thereto it tensions the diaphragm. The diaphragm and tone plate are protected by a cover-plate o. The slotted ring may be cut from a flat metal disc about À020 inch thick. In a modification, the tone plate and resilient support are formed as a single slotted disc unit j, R, Fig. 5 ; in this case the edge j is clamped, the central portion R is connected to the centre of the diaphragm and an annular cover ring o is employed. The diaphragm is operated by a striker b carried by an armature c mounted on a spring e. The mechanism is held in a casing f by spring clips g. The first Provisional Specification describes a resilient support formed by projecting lugs on a clamping-ring. The tone plate may be non-metallic and the diaphragm may be positively driven.
GB1919831A 1931-07-03 1931-07-03 Improvements in electric sound signals Expired GB381227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1919831A GB381227A (en) 1931-07-03 1931-07-03 Improvements in electric sound signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1919831A GB381227A (en) 1931-07-03 1931-07-03 Improvements in electric sound signals

Publications (1)

Publication Number Publication Date
GB381227A true GB381227A (en) 1932-10-03

Family

ID=10125371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1919831A Expired GB381227A (en) 1931-07-03 1931-07-03 Improvements in electric sound signals

Country Status (1)

Country Link
GB (1) GB381227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762297C (en) * 1935-01-27 1953-08-31 Julius Pintsch K G Airborne sound transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762297C (en) * 1935-01-27 1953-08-31 Julius Pintsch K G Airborne sound transmitter

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