US PATENT SUBCLASS 440 / 74
.~ Shaft braking or locking


Current as of: June, 1999
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440 /   HD   MARINE PROPULSION

49  DF  SCREW PROPELLER {12}
74.~ Shaft braking or locking


DEFINITION

Classification: 440/74

Shaft braking or locking:

(under subclass 49) Device wherein a means is provided to slow or stop the rotation of the propeller shaft or to prevent the shaft from initial rotation.

SEE OR SEARCH CLASS

137, Fluid Handling,

38+, particularly subclasses 40+ for propeller shaft brakes that involve means for throttling the steam in response to a marine governor.