FR442109A - Improvements to detonating signals or firecrackers for railways - Google Patents

Improvements to detonating signals or firecrackers for railways

Info

Publication number
FR442109A
FR442109A FR442109DA FR442109A FR 442109 A FR442109 A FR 442109A FR 442109D A FR442109D A FR 442109DA FR 442109 A FR442109 A FR 442109A
Authority
FR
France
Prior art keywords
firecrackers
railways
detonating
signals
detonating signals
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
George Babe Jackson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR442109A publication Critical patent/FR442109A/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
    • B61L5/203—Detonators; Track mounting means; Composition of the detonative product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR442109D 1912-04-02 1912-04-02 Improvements to detonating signals or firecrackers for railways Expired FR442109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR442109T 1912-04-02

Publications (1)

Publication Number Publication Date
FR442109A true FR442109A (en) 1912-08-24

Family

ID=1483303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR442109D Expired FR442109A (en) 1912-04-02 1912-04-02 Improvements to detonating signals or firecrackers for railways

Country Status (1)

Country Link
FR (1) FR442109A (en)

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