GB463416A - Improvements in overtaking signalling devices for vehicles - Google Patents

Improvements in overtaking signalling devices for vehicles

Info

Publication number
GB463416A
GB463416A GB26598/35A GB2659835A GB463416A GB 463416 A GB463416 A GB 463416A GB 26598/35 A GB26598/35 A GB 26598/35A GB 2659835 A GB2659835 A GB 2659835A GB 463416 A GB463416 A GB 463416A
Authority
GB
United Kingdom
Prior art keywords
signal
overtaking
vehicles
sound
predetermined time
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
GB26598/35A
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
Robert Bosch GmbH
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 Robert Bosch AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Publication of GB463416A publication Critical patent/GB463416A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

463,416. Detecting approach of overtaking vehicles. BOSCH AKT.-GES., R. Sept. 26, 1935, No. 26598. Convention date, Oct. 10, 1934. [Class 118 (ii)] In apparatus for detecting approach of overtaking vehicles, a signal is given only if the sound signal from the overtaking vehicle is given for more than a predetermined time. As shown in the Figure, when sound is picked up by microphone 5 the coil 14 of thermal device 15 is energized, and if the sound is received for more than a predetermined time the contacts 12 close to operate signal 9. In other embodiments described the operation of the signal 9 is delayed by a dashpot or the like on a relay armature or by a chain of slowto-release relays. The signal 9 may remain operated until released by a push-button switch, which may also give a " pass " signal to the overtaking driver.
GB26598/35A 1934-10-10 1935-09-26 Improvements in overtaking signalling devices for vehicles Expired GB463416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE463416X 1934-10-10

Publications (1)

Publication Number Publication Date
GB463416A true GB463416A (en) 1937-03-30

Family

ID=6540114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26598/35A Expired GB463416A (en) 1934-10-10 1935-09-26 Improvements in overtaking signalling devices for vehicles

Country Status (1)

Country Link
GB (1) GB463416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545218A (en) * 1947-09-16 1951-03-13 Frank P Weber Discriminating acoustic signal detector
US2562069A (en) * 1949-05-02 1951-07-24 Sherr Sound-actuated lamp indicator for telephones
US2578347A (en) * 1944-04-04 1951-12-11 Gagnaire Francois Signal transmitting device for vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578347A (en) * 1944-04-04 1951-12-11 Gagnaire Francois Signal transmitting device for vehicles
US2545218A (en) * 1947-09-16 1951-03-13 Frank P Weber Discriminating acoustic signal detector
US2562069A (en) * 1949-05-02 1951-07-24 Sherr Sound-actuated lamp indicator for telephones

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