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GB1243096A - Improvements in and relating to a brake efficiency indicator in vehicles - Google Patents

Improvements in and relating to a brake efficiency indicator in vehicles

Info

Publication number
GB1243096A
GB1243096A GB1185269A GB1185269A GB1243096A GB 1243096 A GB1243096 A GB 1243096A GB 1185269 A GB1185269 A GB 1185269A GB 1185269 A GB1185269 A GB 1185269A GB 1243096 A GB1243096 A GB 1243096A
Authority
GB
United Kingdom
Prior art keywords
vehicle
brake efficiency
tubes
switches
lamps
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
GB1185269A
Inventor
Kenneth Garfield Jones
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.)
COAST LINES Ltd
Original Assignee
COAST LINES 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 COAST LINES Ltd filed Critical COAST LINES Ltd
Priority to GB1185269A priority Critical patent/GB1243096A/en
Publication of GB1243096A publication Critical patent/GB1243096A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1,243,096. Inertia switches; partly electromagnetic. COAST LINES Ltd. 6 March, 1970 [6 March, 1969], No. 11862/69. Heading H1N. [Also in Division G1] A brake efficiency indicator 10 on a vehicle has at least its indicating parts 12, 14 and 16 incorporated in another instrument adapted for mounting in the vehicle dashboard or instrument panel. As shown three tubes 22, 24, 26 each containing a metal ball 38 are pivoted independently at 28 with rest positions determined by fixed collars of different diameters on a stop rod 30 so that they respond at different predetermined decelerations to actuate switches in the circuits of three lamps 12, 14, 16. When a two-way switch 18 is moved to its "reset" position a solenoid 51 receives current from the vehicle battery and lifts the tubes to their rest positions. Then when switch 18 is moved to its "test" position the lamp circuits are prepared and upon application of the brakes deceleration of the vehicle causes the balls 38 to roll up the inclined tubes. Those that rock to close their associated switches are indicated by the lamps which signify which predetermined decelerations are reached and hence the brake efficiency. The sensing mechanism 10 may be built into the composite instrument or mounted in a remote part of the vehicle. The visual indication may be supplemented or replaced by aural signals which may vary in pitch. A permanent record of brake efficiency may also be made by a tape or a chart recorder.
GB1185269A 1969-03-06 1969-03-06 Improvements in and relating to a brake efficiency indicator in vehicles Expired GB1243096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1185269A GB1243096A (en) 1969-03-06 1969-03-06 Improvements in and relating to a brake efficiency indicator in vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1185269A GB1243096A (en) 1969-03-06 1969-03-06 Improvements in and relating to a brake efficiency indicator in vehicles

Publications (1)

Publication Number Publication Date
GB1243096A true GB1243096A (en) 1971-08-18

Family

ID=9993884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1185269A Expired GB1243096A (en) 1969-03-06 1969-03-06 Improvements in and relating to a brake efficiency indicator in vehicles

Country Status (1)

Country Link
GB (1) GB1243096A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433214A1 (en) * 1978-08-10 1980-03-07 Vdo Schindling DEVICE FOR DISPLAYING THE MOVEMENT SPEED OF A VEHICLE
GB2229532A (en) * 1989-03-21 1990-09-26 Dawood Yusuf Parpia Vehicle deceleration indicator system
GB2231664A (en) * 1989-05-12 1990-11-21 Sharon Dr Dan An accelerometric device in a moving vehicle
GB2258531A (en) * 1991-08-02 1993-02-10 Steven John Dickinson Deceleration indicator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433214A1 (en) * 1978-08-10 1980-03-07 Vdo Schindling DEVICE FOR DISPLAYING THE MOVEMENT SPEED OF A VEHICLE
GB2229532A (en) * 1989-03-21 1990-09-26 Dawood Yusuf Parpia Vehicle deceleration indicator system
GB2229532B (en) * 1989-03-21 1993-08-18 Dawood Yusuf Parpia Vehicle deceleration indication system
GB2231664A (en) * 1989-05-12 1990-11-21 Sharon Dr Dan An accelerometric device in a moving vehicle
GB2258531A (en) * 1991-08-02 1993-02-10 Steven John Dickinson Deceleration indicator

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