GB1407970A - Equipment for automatic control of the speed of vehicles - Google Patents

Equipment for automatic control of the speed of vehicles

Info

Publication number
GB1407970A
GB1407970A GB5841471A GB5841471A GB1407970A GB 1407970 A GB1407970 A GB 1407970A GB 5841471 A GB5841471 A GB 5841471A GB 5841471 A GB5841471 A GB 5841471A GB 1407970 A GB1407970 A GB 1407970A
Authority
GB
United Kingdom
Prior art keywords
speed
reference speed
voltage
dec
braking system
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
GB5841471A
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.)
Davies and Metcalfe Ltd
Original Assignee
Davies and Metcalfe 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 Davies and Metcalfe Ltd filed Critical Davies and Metcalfe Ltd
Priority to GB5841471A priority Critical patent/GB1407970A/en
Publication of GB1407970A publication Critical patent/GB1407970A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/021—Measuring and recording of train speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • G01P1/103—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the value of the measured signal with one or several reference values

Landscapes

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

Abstract

1407970 Maximum speed-control systems DAVIES AND METCALFE Ltd 14 Dec 1972 [16 Dec 1971] 58414/71 Heading G1N The speed of a moving vehicle is measured electrically and compared with a predetermined reference speed to operate an alarm and a braking system when the latter is exceeded. As shown Fig. 1, a switch 8 mounted on a wheel axle produces one pulse per revolution. The pulse rate is converted at 12 to a proportional voltage and compared at 16 with a reference speed voltage on line 18. When the actual speed is greater than the reference speed an alarm device 20 is energized and a relay 24, after a delay set at 22, operates the valve 26 of a braking system. The reference signal can be modified on the vehicle at 30, to allow for wheel diameter variations, or by external means, to cope with hazard conditions. Thus a first magnet set into a railway track is sensed by a detector on the train to reduce the reference speed voltage, and a second magnet similarly restores the reference speed voltage to normal. The reference signal level may be selectively shown by lamp indicators.
GB5841471A 1971-12-16 1971-12-16 Equipment for automatic control of the speed of vehicles Expired GB1407970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5841471A GB1407970A (en) 1971-12-16 1971-12-16 Equipment for automatic control of the speed of vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5841471A GB1407970A (en) 1971-12-16 1971-12-16 Equipment for automatic control of the speed of vehicles

Publications (1)

Publication Number Publication Date
GB1407970A true GB1407970A (en) 1975-10-01

Family

ID=10481568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5841471A Expired GB1407970A (en) 1971-12-16 1971-12-16 Equipment for automatic control of the speed of vehicles

Country Status (1)

Country Link
GB (1) GB1407970A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854529A (en) * 1987-04-10 1989-08-08 Tsubakimoto Chain Co. Vehicle control system having two trackside signal lines
CN106274507A (en) * 2016-08-29 2017-01-04 中车大连机车车辆有限公司 Electric locomotive current transformer medium voltage Automatic adjustment method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854529A (en) * 1987-04-10 1989-08-08 Tsubakimoto Chain Co. Vehicle control system having two trackside signal lines
CN106274507A (en) * 2016-08-29 2017-01-04 中车大连机车车辆有限公司 Electric locomotive current transformer medium voltage Automatic adjustment method
CN106274507B (en) * 2016-08-29 2018-09-25 中车大连机车车辆有限公司 Electric locomotive current transformer medium voltage Automatic adjustment method

Similar Documents

Publication Publication Date Title
GB1080800A (en) Automatic electrical control system for vehicles
GB1273422A (en) Skid control system
ES368969A1 (en) Automatic brake control system
GB1241689A (en) Anti-locking regulator system suitable for pressure-means-actuated vehicle brakes
ES414794A1 (en) Terminal slowdown control for elevator system
EP0145374A3 (en) Automatic speed control systems
US3629815A (en) Optical-warning system for vehicle brakes
GB1397033A (en) Monitoring device for anti-lock control system
GB1339820A (en) Anti-hijack system for vehicles
GB1269171A (en) Means for controlling the speed of railway vehicles
US3041449A (en) Automatic braking control system
ES426373A1 (en) Air brake antilock control
GB1428851A (en) Lateral acceleration sensing system
GB1407970A (en) Equipment for automatic control of the speed of vehicles
GB1401581A (en) Antiwheel locking control systems
GB1526033A (en) Signal receiving apparatus
GB1495047A (en) Vehicle coast control system
GB1207721A (en) Automatic braking system and apparatus for use therein
GB1279040A (en) Vehicle wheel lock control systems
US2623163A (en) Speed responsive apparatus for detecting overspeed
GB1290458A (en)
GB1168069A (en) Electric Warning Device
GB1452894A (en) Indication apparatus
US3324454A (en) Vehicle brake light signal device
GB1027478A (en) A parking indicator for vehicles

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19921213