DE229522C - - Google Patents

Info

Publication number
DE229522C
DE229522C DENDAT229522D DE229522DA DE229522C DE 229522 C DE229522 C DE 229522C DE NDAT229522 D DENDAT229522 D DE NDAT229522D DE 229522D A DE229522D A DE 229522DA DE 229522 C DE229522 C DE 229522C
Authority
DE
Germany
Prior art keywords
bell
drive
compressed gas
piston
weight
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
DENDAT229522D
Other languages
German (de)
English (en)
Publication of DE229522C publication Critical patent/DE229522C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00Safety means for rail/road crossing traffic
    • B61L29/24Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
DENDAT229522D Active DE229522C (enExample)

Publications (1)

Publication Number Publication Date
DE229522C true DE229522C (enExample)

Family

ID=489819

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT229522D Active DE229522C (enExample)

Country Status (1)

Country Link
DE (1) DE229522C (enExample)

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