DE143939C - - Google Patents

Info

Publication number
DE143939C
DE143939C DENDAT143939D DE143939DA DE143939C DE 143939 C DE143939 C DE 143939C DE NDAT143939 D DENDAT143939 D DE NDAT143939D DE 143939D A DE143939D A DE 143939DA DE 143939 C DE143939 C DE 143939C
Authority
DE
Germany
Prior art keywords
barrier
drive pulley
pin
drive
boom
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.)
Active
Application number
DENDAT143939D
Other languages
German (de)
English (en)
Publication of DE143939C publication Critical patent/DE143939C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/243—Transmission mechanism or acoustical signals for gates

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
DENDAT143939D Active DE143939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE143939C true DE143939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=411406

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT143939D Active DE143939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE143939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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