Importance

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Abstract

'L' shaped spring wire blades for use on drum type mowers. The upper ends of the vertical leg portions of the L-shaped members are fastened to the drum near its upper end and arcuately spaced apart around its cylindrical surface. The vertical portion of each blade projects downwardly at a position closely adjacent the outer cylindrical surface of the drum and passes through an opening in the disc at the base of the drum whereafter the horizontal portion of each blade extends radially outwardly beneath the disc. A hay cutting end of each blade projects radially outwardly beyond the disc to effect cutting of hay as the drum and its unitary disc rotate. The spring wire blade can yield rearwardly about its vertical leg as an axis of torsional twist when its horizontal leg strikes an obstruction. The inherent spring nature of the L-shaped blade will cause it to automatically resume its cutting position when the obstruction is cleared. The mower preferably uses drums in pairs which rotate inwardly toward each other to effect more efficient cutting and to simultaneously windrow the cut hay. Paddle elements are affixed to the outer cylindrical surface of the drum at positions closely in front of the vertical leg of each L-shaped wire blade to aid in the delivery of the harvested hay rearwardly in a windrow and to prevent any cut hay from wedging between the wire blade and the outer surface of the drum.

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First Claim