Adjustable length upper guide member

Details Adjustable length upper guide member Adjustable length upper guide member

1977-03-21

1978-11-21

Smith, Gary L.

Machine element or mechanism

Elements

Pitmans and connecting rods

280482, 403107, G05G 104

Patent

active

041260570

ABSTRACT:
An adjustable length upper guide member for the hitch attachment of a tractor has an outer tubular guide element within which is telescopingly positioned an inner guide element so as to be relatively displaceable thereto. A housing on the outer guide element has a pair of jaws pivotally mounted therein and the jaws each have first arms which are engageable with annular grooves on the inner guide element and second arms which form actuating cams facing each other. A lever has an eccentric portion within the housing and one side of the eccentric portion is engageable against the housing and the other side of the eccentric portion engageable with the actuating cams so that pivoting of the lever causes the eccentric portion to act upon the cams and pivot the jaws to a disengaged position.

REFERENCES:
patent: 721023 (1903-02-01), Cosper
patent: 1185127 (1916-05-01), Ollard
patent: 1321942 (1919-08-01), Anderson
patent: 2887929 (1959-05-01), Farmer
patent: 3157416 (1964-11-01), Sandbakken
patent: 3384937 (1968-05-01), Muncke
patent: 3837753 (1974-09-01), Weiste

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