US PATENT SUBCLASS 188 / 68
.~ Frictional and positive

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  WHEEL {10}
68.~ Frictional and positive

DEFINITION

Classification: 188/68

Brakes applied frictionally and positively, either successively or simultaneously.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

813+, for turrets which may have both positive and friction locking means.

192, Clutches and Power-Stop Control,

53.1+, for similar action in clutches.