by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices (magnetic 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) > by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices (magnetic brakes B61H)

Child Classifications

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• B61C 15/045
• B61C 15/06 by displacing fuel, ballast, or the like