Cutlery – Cutting tools – Plural cooperating blades
Patent
1975-11-20
1977-03-29
Smith, Al Lawrence
Cutlery
Cutting tools
Plural cooperating blades
A01G 304
Patent
active
040140938
ABSTRACT:
Improvements in hedge shears which eliminates the need for springs and in which one blade assembly is formed of two parts, both pivotally rotatable on a post rigidly connected to the other blade. The two parts are interconnected loosely by an offset portion of the driving element which applies driving force to a pin integral with the driven element to effect a moment of force for laterally tilting the associated blade throughout the cutting stroke.
REFERENCES:
patent: 2661534 (1953-12-01), Keiser
patent: 3834022 (1974-09-01), Students
Peters J. C.
Ruano William J.
Smith Al Lawrence
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