GB278730A - Improvements in or relating to automatic train control systems - Google Patents

Improvements in or relating to automatic train control systems

Info

Publication number
GB278730A
GB278730A GB26497/27A GB2649727A GB278730A GB 278730 A GB278730 A GB 278730A GB 26497/27 A GB26497/27 A GB 26497/27A GB 2649727 A GB2649727 A GB 2649727A GB 278730 A GB278730 A GB 278730A
Authority
GB
United Kingdom
Prior art keywords
magnet
pole
track
armature
bracket
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
GB26497/27A
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
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 Associated Telephone and Telegraph Co filed Critical Associated Telephone and Telegraph Co
Publication of GB278730A publication Critical patent/GB278730A/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
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction

Landscapes

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

Abstract

278,730. Associated Telephone & Telegraph Co., (Assignees of Hudd, A. E.). Oct. 6, 1926, [Convention date]. Electromagnets; magnets.-A speed control device on a train is controlled by permanent magnets and electromagnets on the track which inductively operate a polarized contact-making armature. The inductor contact maker for cooperation with a permanent magnet or an electromagnet on the track, Fig. 8, comprises two pole-pieces 102, 103 between which is pivoted an armature 105 polarized by a horseshoe magnet 121. The pole-piece 103 is carried from an axle box by a non-magnetic bracket 101 and is fitted with iron wires 104 which mav contact with the track-magnet to provide a good magnetic circuit. The pole-pieces 102 is suitably bent and attached to the axle box; the magnetic circuit includes the train wheel, rail 100, an offset bracket 114 clamped to the rails, and magnet 112 secured to the bracket by magnetic bolts the heads 111, 125 of which form poles of the magnet. The armature is biassed to remain in either position to which is moved according to the polarity of the upper end of the last track magnet passed, or it may be reset to its initial position by a resetting coil 124 wound on the pole-piece 103. Specifications 290,587 and 290,588; 293,431, [Class 105, Railway signals &c.], and 293,432 are referred to.
GB26497/27A 1926-10-06 1927-10-06 Improvements in or relating to automatic train control systems Expired GB278730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278730XA 1926-10-06 1926-10-06

Publications (1)

Publication Number Publication Date
GB278730A true GB278730A (en) 1929-01-07

Family

ID=21840255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26497/27A Expired GB278730A (en) 1926-10-06 1927-10-06 Improvements in or relating to automatic train control systems

Country Status (1)

Country Link
GB (1) GB278730A (en)

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