DE139868C - - Google Patents

Info

Publication number
DE139868C
DE139868C DENDAT139868D DE139868DA DE139868C DE 139868 C DE139868 C DE 139868C DE NDAT139868 D DENDAT139868 D DE NDAT139868D DE 139868D A DE139868D A DE 139868DA DE 139868 C DE139868 C DE 139868C
Authority
DE
Germany
Prior art keywords
barrier
signal
angle lever
disc
chain wheel
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
DENDAT139868D
Other languages
German (de)
English (en)
Publication of DE139868C publication Critical patent/DE139868C/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)
  • Valve-Gear Or Valve Arrangements (AREA)
DENDAT139868D Active DE139868C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE139868C true DE139868C (enrdf_load_stackoverflow)

Family

ID=407584

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT139868D Active DE139868C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE139868C (enrdf_load_stackoverflow)

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