GB385473A - Improvements in machines for cutting grass and the like - Google Patents

Abstract

385,473. Mowing - machines, lawnmowers, hedge-cutting machines, &c. COCKBURN, D. H., Rhodora, Richings Way, Iver, Buckinghamshire. Feb. 29. 1932, No. 5988. [Classes 6 (ii) and 6 (iii).] A machine for cutting grass, hedges, &c. comprises a propeller or air screw C and knives D mounted to rotate in a plane substantially parallel to the surface to be cut, and a volute or approximately volute guide through which the cuttings are propelled in a direction convenient for collection or into a receptacle K. Rake arms E may be arranged between the knives with their teeth projecting below the cutting plane. For grass cutting, the machine is mounted on wheels H, Fig. 1, and a driving motor A is mounted in the volute frame B which is provided with a handle J. The receptacle K is detachably secured by hooks X. The knives D are made of thin razor steel and are backed by supporting plates. They are detachably connected to some of the arms of the propeller C, the other arms carrying, the rakes E. The knives may be of rectangular or polygonal shape with all edges sharpened, and may be turned about their clamping bolts to bring another edge into use when required. For hedge cutting the motor A, Fig. 5, is mounted between two parts of the frame B forming handles, and drives the propeller &c. through a hollow shaft P, bevel gearing N, and the propeller spindle Q inclined at such an angle that the centre of the cutting section R of the apparatus lies approximately in the centre line of the handles. The frame B. is cut away at the front and is extended at the rear to form a guard S. It carries a volute guide W which may be fitted with a receptacle or left open. According to the Provisional Specification a brush may be provided to sweep the cuttings into the receptacle.