GB773208A - Grass mowers - Google Patents

Abstract

773,208. Mowing machines. BORROW, E. W. June 28, 1955 [July 3, 1954], No. 19558/54. Classes 6(2) and 6(3). A machine for cutting grass comprises one or more cutters mounted at the front of a tractor, the cut grass being conveyed to a face by which it is blown through a duct to a trailer at the rear end of the tractor. The grass cut by the cutting units 4 is directed by means of deflecting plates 49, 50 to a transverse worm conveyer 28 which conveys it to a longitudinal worm conveyer 8 mounted on a shaft 6 and enclosed in a casing 9. The grass is directed through perforations in the conical end 10 of the casing 9 and is chopped by rotating knife blades 14, after which it is blown by means of a fan 5 through a duct 17 into a trailer drawn by the tractor. The shaft 6 is driven from the power take-off shaft 2 of the tractor via the lay shaft 58 and vee-belts 7 and in turn drives a shaft 24 from which the drive of the transverse conveyer and of the cutting units is derived. The lay shaft also drives a pulley 11, the extension 12 of which carries fan blades 13 and knife blades 14. The mounting of the cutting units is such as to allow them to be raised out of their operative position by means of pulleys 38, 39 and chains 37 connected to the hydraulic lift mechanism of the tractor. Means are provided for ensuring that the delivery end of the ducting 17 remains over the trailer and further, the delivery end is articulated about a horizontal axis so as to allow the end of the ducting to be raised or lowered, thereby controlling the distribution of grass in the trailer. The cutters 4 may comprise reciprocating agricultural knives delivering the cut grass to elevators which raise it to the longitudnal conveyer.