FR981690A - Improvements to electrical switches - Google Patents

Improvements to electrical switches

Info

Publication number
FR981690A
FR981690A FR981690DA FR981690A FR 981690 A FR981690 A FR 981690A FR 981690D A FR981690D A FR 981690DA FR 981690 A FR981690 A FR 981690A
Authority
FR
France
Prior art keywords
electrical switches
switches
electrical
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
Other languages
French (fr)
Inventor
Andrew Brown
Denis Alexander Tomlin
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR981690A publication Critical patent/FR981690A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
    • B61L19/06—Interlocking devices having electrical operation
    • B61L19/14—Interlocking devices having electrical operation with electrical locks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Contacts (AREA)
FR981690D 1948-01-22 1949-01-20 Improvements to electrical switches Expired FR981690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB200248A GB693481A (en) 1948-01-22 1948-01-22 Improvements in or relating to electrical switches

Publications (1)

Publication Number Publication Date
FR981690A true FR981690A (en) 1951-05-29

Family

ID=9731871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981690D Expired FR981690A (en) 1948-01-22 1949-01-20 Improvements to electrical switches

Country Status (4)

Country Link
CH (1) CH285594A (en)
FR (1) FR981690A (en)
GB (1) GB693481A (en)
NL (2) NL78663C (en)

Also Published As

Publication number Publication date
GB693481A (en) 1953-07-01
NL78663C (en) 1955-07-16
CH285594A (en) 1952-09-15
NL144451B (en) 1955-03-15

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