GB454211A - Improvements in and relating to warning apparatus for automobiles and the like - Google Patents

Improvements in and relating to warning apparatus for automobiles and the like

Info

Publication number
GB454211A
GB454211A GB13867/36A GB1386736A GB454211A GB 454211 A GB454211 A GB 454211A GB 13867/36 A GB13867/36 A GB 13867/36A GB 1386736 A GB1386736 A GB 1386736A GB 454211 A GB454211 A GB 454211A
Authority
GB
United Kingdom
Prior art keywords
vehicle
ratchets
pawls
transmission train
automobiles
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
GB13867/36A
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
Publication of GB454211A publication Critical patent/GB454211A/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)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

454,211. Road - traffic signals on vehicles. HOLM, E. FRYDENLUND-, 52, Konvallveien, Sogn Haveby, Oslo, Norway. May 15, 1936, No. 13867. Convention date, March 27. [Class 118 (ii)] A mechanical sound - emitter is operated when a vehicle moves backwards, the operating mechanism comprising a one-way mechanism interposed in a suitable transmission train. As shown, the ratchet wheel 14 is included in the speedometer transmission train 2, 6. When the vehicle is travelling forwards, ratchets 17 click past pawls 25, but when the vehicle is moving backwards, the ratchets and pawls engage and drive toothed wheel 15, the teeth operating the diaphragm 12 through the member 11.
GB13867/36A 1936-03-27 1936-05-15 Improvements in and relating to warning apparatus for automobiles and the like Expired GB454211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE454211X 1936-03-27

Publications (1)

Publication Number Publication Date
GB454211A true GB454211A (en) 1936-09-25

Family

ID=6538886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13867/36A Expired GB454211A (en) 1936-03-27 1936-05-15 Improvements in and relating to warning apparatus for automobiles and the like

Country Status (1)

Country Link
GB (1) GB454211A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979020A (en) * 1958-04-18 1961-04-11 Radics Max Von Transmission driven backup alarm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979020A (en) * 1958-04-18 1961-04-11 Radics Max Von Transmission driven backup alarm

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