US PATENT SUBCLASS 105 / 75
.~.~ Variable driver load

Current as of: June, 1999
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105 /   HD   RAILWAY ROLLING STOCK

26.05  DF  LOCOMOTIVES {24}
73  DF  .~ Traction regulators {4}
75.~.~ Variable driver load

DEFINITION

Classification: 105/75

(under subclass 73) Rolling-stock in which the weight of the tender, locomotive-pilot, or trailing trucks may be shifted to or from the locomotive drive-wheels to vary their tractive effect.