Haymaking machine

Details Haymaking machine Haymaking machine

1981-07-17

1983-10-04

Swiatek, Robert P.

Harvesters

Tedders

56377, A01D 7800, A01D 8002

Patent

active

044071159

ABSTRACT:
A haymaking machine of the type having a pair of raking wheels rotatable about generally upright axes in the same sense or in opposite senses depending upon the type of haymaking operation involved. In order to provide a resilient characteristic to the prongs which is the same in both senses of rotation, each prong is mounted swingably on a pivot member whose bolt is connected to one end of a stack of spring-steel strips forming a torsion spring. The latter extends through a tube fixed to the frame of the wheel and is anchored to this tube by another sleeve whose angular position relative to the tube can be adjusted.

REFERENCES:
patent: 3995416 (1976-12-01), van der Lely
patent: 4329837 (1982-05-01), Vissers et al.

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