Harrow

Details Harrow Harrow

A - Human Necessities

01

B

97/71.7

A01B 23/02 (2006.01)

Patent

CA 1047823

ABSTRACT OF THE DISCLOSURE A rectangular frame carries a plurality of trans- verse tooth bars pivoted to the frame with each bar carry- ing a plurality of harrow teeth. A lever arm extends upward- ly from each tooth bar and is connected by a spring to the frame so that an obstruction engaged by any one of the teeth will move the tooth rearwardly against the pressure of the spring which will return the tooth to the original position when the obstruction is passed. A block is bolted to the frame adjacent each lever and may be rotated to any one of four positions and is engaged by the lever and may be rotated to any one of four positions and is engaged by the lever to control the angle of the lever with the horizontal and hence the the angle of inclination of the teeth within the ground to permit a greater angle than usual when harrowing in trash or soft soil. The spacing of the teeth in the rearward bar is such that small furrows are formed between these teeth and the teeth of the next two bars will assist in preventing the soil drifting. Furthermore the weight of the harrow settles the soil and forms a firm seed bed.

261782

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