Patent GB-190208662-A (GB)
Title: Improvements in Mowing Machines.
Inventor: BURLINGAME CHARLES HEALY
Filed: 1902-04-14
Granted: 1903-04-02
Abstract: 8662. Burlingame, C. H., [McCormick Harvesting ulachine Co.]. April 14. Mowing -machines. -Relates to improvements in mowing-machines, affecting the frame, the means for lifting the cutter-bar, the main clutch, and the draught apparatus, The main frame a is formed with a forward extension c having a socket s<x> in which a stub tongue d is fixed. The coupling-frame for carrying the main shoe consists of two bars e, e<1>. The bar e is bent at its end parallel with the cutting- apparatus, and the bent end is mounted in a sleeve f<1> of the yoke f to which the main shoe is hinged. The bar e<1> is hinged to the front of the crank-shaft housing and to the yoke f. A draught lever g is pivoted to a bracket i<4>, on the end of the stub tongue d. A rod g<1> is connected to the yoke f and to the lever g. The single-tree h is connected to the lever g, and the pull of the horse tends to lift the points of the fingers off the ground. The machine, as shown in Fig. 2, is adapted for use with one horse. The shaft iron i<2> is adjustably connected, by a bracket c<1> and bolt c<2>, to the tongue d. Truss rods i<1>, i<1> attached to the shafts are adjustably secured to the bracket i<4>. k represents the spring for counterbalancing the weight of the cutting-apparatus. Its rear end is connected by a link to a foot-lever m<1>, pivoted on a compensating-lever l, which is pivoted on the frame. The forward end of the lever l is connected by a link l<1> and a chain to a standard l<3> pivoted to the cutter-bar at a point beyond the pivot which connects the cutter-bar to the main shoe. The chain is passed under a guide-pulley fitted with an arm to engage the link l<1> in certain positions, and thus increase the leverage exerted by the link. An adjustable set-screw or other stop is fixed on the shoe in a position to act as a fulcrum for the standard l<3> in raising the cutter-bar. A hand-lever n is mounted on the same pivot as the lever l and is connected to it by any usual means. The levers are locked, when the cutter-bar is in its raised position, by means of a notched lug n<1> on the frame engaging with a projection on the side of the foot-lever m'. The hand-lever n is connected by a link o<5> to mechanism for operating the main clutch, so that the movement of the lever n to raise the cutter-bar simultaneously throws the driving-mechanism out of action. Fig. 7 shows, in section, the clutch and it actuating-mechanism. o<2> represents a countershaft driven continuously by a pinion t and gear ring t<1> attached to one of the road wheels, o<1> represents the bevel-wheel from which the cutter-driving shaft is actuated. A disc q with internal peripheral teeth q<3>, q<3> is made fast to the shaft o<2>. Spring-actuated pawls r<3>, r<3> with projecting arms r<4>, r<4> are pivoted to the hub of the wheel o' and normally engage the teeth q<3>, q<3>, to drive the wheel o<1>. The pawls r<3>, r<3> are thrown out of engagement with the teeth q<3>, q<3> by a conical flange s on a sliding piece p<3> engaging the arms r<4>, r<4> of the pawls. The piece p<3> is mounted so as to slide, without turning, on the shaft o<2> and is actuated by a disc p<1> having cam surfaces x. The disc p<1> is provided with a projecting arm p operated by suitable connections from the handlever employed for lifting the cutting-apparatus. If the gear case is opened, the piece p<3> may be operated by hand to throw the driving-mechanism out of action.