by depositing sand or like friction increasing materials (for vehicles in general B60B; combined control of sanding apparatus and brakes B61H)

Full Title

Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels (propelling locomotives or motor railcars by special means B61C11/00; driving wheels with non-slipping devices B60B; brakes B61H; wetting or lubricating rails B61K) > Preventing wheel slippage (adjusting wheel-braking force to prevent wheel slippage B60T8/00 ) > by depositing sand or like friction increasing materials (for vehicles in general B60B; combined control of sanding apparatus and brakes B61H)

Child Classifications

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• B61C 15/102
• B61C 15/105
• B61C 15/107