.~.~> Unidirectional clutch in drive from ground wheel
DEFINITION
Classification: 172/103
(under subclass 35) Apparatus in which the drive transmission means between a driven earth working element and its motivating means is provided with a power transmitting member which (1) slips, bends, breaks, distorts, or in some other manner allows a relative displacement between said earth working element and its motivating means, or (2) can be selectively moved from one position in which the drive transmission means is interrupted between the driven earth working element and its motivating means to another position in which said drive transmission means is again operative to transmit power directly from the motivating means to the driven earth working element.
(1) Note. Generally the function of the overload relief means is to protect the earth working element whenever it encounters an obstruction, while the clutch functions to interrupt the power drive to the earth working element whenever desirable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75, for driven earth working elements which are provided with means to interrupt the power drive to said element upon a bodily shifting of the same from one vertical position to another.
83, for driven earth working elements which are provided with means to interrupt the power drive to said element upon a bodily shifting of the same back or forth in the direction of draft.
96, for teeth or like earth working parts or portions which are yieldably mounted on a power driven cyclic carrier for motion with respect thereto upon contact by a resisting member. 117, for means to yieldably support an earth working element which means may permit the earth working element to rise up out of contact with an obstruction.
533, for a clutch between a shaft and a rolling, rotating, or orbitally moving nondriven tool mounted thereon.
SEE OR SEARCH CLASS
171, Unearthing Plants or Buried Objects,
9, for unearthing devices with drive overload release.
