GB367560A - Improvements in or relating to apparatus for giving warning of the approach of trains - Google Patents

Improvements in or relating to apparatus for giving warning of the approach of trains

Info

Publication number
GB367560A
GB367560A GB4875/31A GB487531A GB367560A GB 367560 A GB367560 A GB 367560A GB 4875/31 A GB4875/31 A GB 4875/31A GB 487531 A GB487531 A GB 487531A GB 367560 A GB367560 A GB 367560A
Authority
GB
United Kingdom
Prior art keywords
approach
trains
relating
feb
giving warning
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
GB4875/31A
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.)
ERNEST GUIRAUD
Original Assignee
ERNEST GUIRAUD
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 ERNEST GUIRAUD filed Critical ERNEST GUIRAUD
Publication of GB367560A publication Critical patent/GB367560A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/182—Use of current of indifferent sort or a combination of different current types

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

367,560. Track apparatus for signalling the approach of trains. GUIRAUD, E., 7, Rue du Transvaal, La Garenne, Colombes, Seine, France. Feb. 16, 1931, No. 4875. Convention date, Feb. 17, 1930. [Class 105.] The approach of a train is signalled by the sudden variations of current in a circuit com. prising a battery P connected through a transformer primary to the two rails as the front axle A, B of the train passes the rail joints ; the secondary winding of the transformer T is connected to an acoustic or luminous apparatus E which may include an amplifier.
GB4875/31A 1930-02-17 1931-02-16 Improvements in or relating to apparatus for giving warning of the approach of trains Expired GB367560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR367560X 1930-02-17

Publications (1)

Publication Number Publication Date
GB367560A true GB367560A (en) 1932-02-25

Family

ID=8894409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4875/31A Expired GB367560A (en) 1930-02-17 1931-02-16 Improvements in or relating to apparatus for giving warning of the approach of trains

Country Status (1)

Country Link
GB (1) GB367560A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7703620B2 (en) 2003-04-17 2010-04-27 Glaxo Group Limited Chain linked capsules
US7713518B2 (en) 2002-11-20 2010-05-11 Glaxo Group Limited Capsule for a powder medicament

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7713518B2 (en) 2002-11-20 2010-05-11 Glaxo Group Limited Capsule for a powder medicament
US8668928B2 (en) 2002-11-20 2014-03-11 Glaxo Group Limited Capsule
US7703620B2 (en) 2003-04-17 2010-04-27 Glaxo Group Limited Chain linked capsules

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