FR332531A - Improvements to signal devices for railways - Google Patents

Improvements to signal devices for railways

Info

Publication number
FR332531A
FR332531A FR332531DA FR332531A FR 332531 A FR332531 A FR 332531A FR 332531D A FR332531D A FR 332531DA FR 332531 A FR332531 A FR 332531A
Authority
FR
France
Prior art keywords
railways
signal devices
devices
signal
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
John Patrick O'donnell
Ernest Copeland Irving
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.)
JOHN PATRICK O DONNELL
Original Assignee
JOHN PATRICK O DONNELL
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 JOHN PATRICK O DONNELL filed Critical JOHN PATRICK O DONNELL
Application granted granted Critical
Publication of FR332531A publication Critical patent/FR332531A/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
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR332531D 1903-05-19 1903-05-19 Improvements to signal devices for railways Expired FR332531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR332531T 1903-05-19

Publications (1)

Publication Number Publication Date
FR332531A true FR332531A (en) 1903-10-30

Family

ID=1382176

Family Applications (1)

Application Number Title Priority Date Filing Date
FR332531D Expired FR332531A (en) 1903-05-19 1903-05-19 Improvements to signal devices for railways

Country Status (1)

Country Link
FR (1) FR332531A (en)

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