GB469298A - Improvements in or relating to explosion detectors - Google Patents

Improvements in or relating to explosion detectors

Info

Publication number
GB469298A
GB469298A GB2886336A GB2886336A GB469298A GB 469298 A GB469298 A GB 469298A GB 2886336 A GB2886336 A GB 2886336A GB 2886336 A GB2886336 A GB 2886336A GB 469298 A GB469298 A GB 469298A
Authority
GB
United Kingdom
Prior art keywords
contact
relay
closure
relating
sustained
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
GB2886336A
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to GB2886336A priority Critical patent/GB469298A/en
Publication of GB469298A publication Critical patent/GB469298A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/20—Audible signals, e.g. detonator audible signalling
    • B61L5/22—Devices for initiating the release of detonators in a certain position of a signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

469,298. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd. (Materiel Telephonique Soc. Anon.) Oct. 23, 1936, No. 28863. [Class 38 (v)] [Also in Groups XXX and XXXVIII] A relay circuit arrangement to give a sustained contact closure from the very brief closure of a contact 6 actuated by an explosion wave comprises a condenser 14 which is immediately charged and continues to supply current to a relay 12 when the contact 6 re-opens. The relay 12 is thus able tc lift its contact and sc to close a stick circuit which includes a relay 15 ; a contact of this relay 15 gives the sustained contact closure.
GB2886336A 1936-10-23 1936-10-23 Improvements in or relating to explosion detectors Expired GB469298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2886336A GB469298A (en) 1936-10-23 1936-10-23 Improvements in or relating to explosion detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2886336A GB469298A (en) 1936-10-23 1936-10-23 Improvements in or relating to explosion detectors

Publications (1)

Publication Number Publication Date
GB469298A true GB469298A (en) 1937-07-22

Family

ID=10282369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2886336A Expired GB469298A (en) 1936-10-23 1936-10-23 Improvements in or relating to explosion detectors

Country Status (1)

Country Link
GB (1) GB469298A (en)

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