GB1334259A - Decoding system - Google Patents

Decoding system

Info

Publication number
GB1334259A
GB1334259A GB3692171A GB3692171A GB1334259A GB 1334259 A GB1334259 A GB 1334259A GB 3692171 A GB3692171 A GB 3692171A GB 3692171 A GB3692171 A GB 3692171A GB 1334259 A GB1334259 A GB 1334259A
Authority
GB
United Kingdom
Prior art keywords
relay
relays
output
contacts
actuated
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
GB3692171A
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.)
SPX Corp
Original Assignee
General Signal Corp
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 General Signal Corp filed Critical General Signal Corp
Publication of GB1334259A publication Critical patent/GB1334259A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

1334259 Automatic train control GENERAL SIGNAL CORP 5 Aug 1971 [5 Aug 1970] 36921/71 Heading B7N [Also in Division G4] Decoding apparatus for selectively responding to a frequency-significant signal having one only of three characteristic frequencies, comprises a plurality of output relays controlled via filters, first checking means for producing a first checking output in accordance with the output of the filter corresponding to the actuated relay highest in a hierarchy in which the relays are arranged, and second checking means governed by the first checking output and by contacts of the relays for producing a distinctive output if more than one of the relays is actuated simultaneously. As disclosed, one of three frequencies is supplied to a train via coils 11 from the rails R, passed by filter and amplifier 12, and recognized by a respective one of three filters LC to energize a respective relay L, M or H to command a low, medium or high train speed respectively via contacts 13, 14, 15, these being arranged so that actuation of more than one relay causes the lowest of the respective speeds to be commanded. In addition, an "all-rate" relay AR is energized via contacts 16, 17, 18 from the output of the filter LC, and contacts 19, 20 of this relay AR and contacts 21-25 of relays L, M, H normally keep a relay CR energized. Relay CR is deenergized to apply the train brake if either (a) at least one of relays L, M, H is actuated but there is no output from the filter LC corresponding to the highest (in the drawing, i.e. lowest speed) of the actuated relays L, M, H, this de-energizing relay AR, or (b) if more than one of relays L, M, H is actuated, by virtue of contacts 21-25, irrespective of the state of relay AR.
GB3692171A 1970-08-05 1971-08-05 Decoding system Expired GB1334259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6120970A 1970-08-05 1970-08-05

Publications (1)

Publication Number Publication Date
GB1334259A true GB1334259A (en) 1973-10-17

Family

ID=22034336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3692171A Expired GB1334259A (en) 1970-08-05 1971-08-05 Decoding system

Country Status (8)

Country Link
US (1) US3699521A (en)
JP (1) JPS5332124B1 (en)
BR (1) BR7105050D0 (en)
CA (1) CA941056A (en)
DE (1) DE2139294A1 (en)
FR (1) FR2104031A5 (en)
GB (1) GB1334259A (en)
NL (1) NL7110829A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913874A (en) * 1974-03-08 1975-10-21 Westinghouse Electric Corp Vehicle control system including residue breakdown voltage across the vehicle rails
JPS5762516U (en) * 1980-09-30 1982-04-14

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141551A (en) * 1936-08-01 1938-12-27 Gen Railway Signal Co Centralized traffic controlling system for railroads
US2784393A (en) * 1954-02-26 1957-03-05 Bendix Aviat Corp Frequency multiplex telemetering system
GB1067673A (en) * 1962-10-25 1967-05-03 Gen Electric Co Ltd Improvements in or relating to supervisory arrangements
US3396370A (en) * 1964-09-11 1968-08-06 Femco Inc Coded tone supervisory system

Also Published As

Publication number Publication date
JPS5332124B1 (en) 1978-09-06
CA941056A (en) 1974-01-29
DE2139294A1 (en) 1972-02-10
BR7105050D0 (en) 1973-06-14
NL7110829A (en) 1972-02-08
FR2104031A5 (en) 1972-04-14
US3699521A (en) 1972-10-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee