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HENRY KRATTIGER
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HENRY KRATTIGER
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Publication of FR340054ApublicationCriticalpatent/FR340054A/en
B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
B61C15/08—Preventing wheel slippage
B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
B61C15/107—Preventing wheel slippage by depositing sand or like friction increasing materials with electrically or electromagnetically controlled sanding equipment
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Transportation
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FR340054D1904-01-301904-01-30
Automatic sand spreader system for tram tracks
ExpiredFR340054A
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