GB121584A - Improvements relating to Railway Signalling Systems. - Google Patents

Improvements relating to Railway Signalling Systems.

Info

Publication number
GB121584A
GB121584A GB13130/18A GB1313018A GB121584A GB 121584 A GB121584 A GB 121584A GB 13130/18 A GB13130/18 A GB 13130/18A GB 1313018 A GB1313018 A GB 1313018A GB 121584 A GB121584 A GB 121584A
Authority
GB
United Kingdom
Prior art keywords
coil
condenser
mains
cores
transformer
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
GB13130/18A
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.)
Mckenzie Holland & Westinghous
Original Assignee
Mckenzie Holland & Westinghous
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 Mckenzie Holland & Westinghous filed Critical Mckenzie Holland & Westinghous
Publication of GB121584A publication Critical patent/GB121584A/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
    • B61L1/187—Use of alternating current

Landscapes

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

Abstract

121,584. McKenzie, Holland, & Westinghouse Power Signal Co., (Assignees of Holliday, J. S.). Dec. 15, 1917, [Convention date]. Electrical systems, automatic. - The track relay in an alternating current signalling system has one of its actuating windings connected to a source of energy and the other connected to the track rails and one winding is shunted, either directly or indirectly, by a condensance to cause a displacement of phase of the magnetic flux due to this winding. Fig. 1 shows a system in which the coils 8 on the cores 6 are supplied from the mains P through the transformer A'. The coil 9 on the core 7 is supplied through the track rails T and impedance coil 3 from transformer A and the mains P. A coil 10 on the core 7 is connected to a condenser 11. Bv this arrangement, a smaller condenser is possible, the circuit being equivalent to a larger condenser in parallel to the coil 9. The relay armature 12 is connected to the spindle on which is fitted an electrically-conductive non-magnetic plate 4 which moves in the gaps of the cores 6, 7.
GB13130/18A 1917-12-15 1918-08-13 Improvements relating to Railway Signalling Systems. Expired GB121584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US121584XA 1917-12-15 1917-12-15

Publications (1)

Publication Number Publication Date
GB121584A true GB121584A (en) 1919-04-24

Family

ID=32391581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13130/18A Expired GB121584A (en) 1917-12-15 1918-08-13 Improvements relating to Railway Signalling Systems.

Country Status (1)

Country Link
GB (1) GB121584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858484A (en) * 1953-10-07 1958-10-28 Westinghouse Electric Corp Induction-type alternating-current relays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858484A (en) * 1953-10-07 1958-10-28 Westinghouse Electric Corp Induction-type alternating-current relays

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