IMPROVEMENTS IN MACHINES FOR CUTTING AND HARVESTING. GRAIN AND GRASS CROPS
Year: 1866

page_text: PROVISIONAL SPECIFICATION left by William Bünger at the Office of the
Commissioners of Patents, with his Petition, on the 18th May 1866.-
A communication from abroad by Moritz Poll and William Angele,
of the Firm Isidoro Pintus and Comp, of Brandenburg upon the
Havel, in the Kingdom of Prussia, Civil Engineers.
I, WILLIAM BÜNGEB, of 17, Southampton Buildings, Chancery Lane, in
the County of Middlesex, Civil Engineer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN MACHINES FOR CUTTING AND HARVESTING.
GRAIN AND GRASS CROPS," to be as follows:-
The object of this Invention is to construct a mowing and reaping
machine of the least possible weight compared with ordinary machines of
that class, so that it may easily be worked by hand or by one horse, the
improvements at the same time being applicable to reaping machines of.
larger dimensions if desired.
The machine is further constructed with a view to simplify the gearing
apparatus, and to obviate as far as possible the application of cog wheels
and eccentrics employed in other reaping machines now in use, and to
provide a platform allowing the grain to be delivered on either side of the
machine. In consequence of this, and the small weight, the machine may

page_text: DESCRIPTION OF THE DRAWINGS.
A, A, is the frame supported by two wheels x, x, fixed on the axle a, b,
the cam wheel c with peculiarly shaped teeth on its outer circumference being
fixed to the axle a, b. This wheel is surrounded by a sort of frame which
consists of two bars, one on each side of the wheel and at right angles to its
axis, the bars being connected with each other by two cross pieces f, g, in
such manner that one of these cross pieces is alternately in gear with and
operated on by the wheel c, whilst the other one may be said to be out of
contact. In this manner the number of cuttings will be double the number
of cogs. The position of the cross pieces with reference to the teeth of the
wheel may be regulated by means of a set screw h, i. The machine being
at work motion is imparted to the axis a, b, through the driving wheels, and
as the wheel c turns round with the shaft a, b, it will in consequence of its
teeth coming in. contact with the cross pieces f, g, cause the whole frame
d, c, f, g, to travel to and fro in a direction at right angles to the axis a, b.
This to-and-fro motion is imparted to the two cutters at the forward end of
the machine by means of the connecting rod K and two crank levers p, p,
pivotted at r, r, slot boles are formed in the crank levers p, p, that receive
the pins connecting them with K¹. The other ends of crank levers p take
into the frames or backs of the cutters 8, 8. By these means the to-and-fro
motion of the frame d, c, f, g, which is at right angles to the axis a, b, is
transmitted and imparts a to-and-fro motion to the cutters parallel to the
axis a, b, thus whilst one cutter is moving in one direction the other one moves
in the opposite direction. The cutters being placed in close contact, and one
above the other, a shearing action is produced. The height at which the
crop is to be cut may be regulated by means of two small wheels which
support the main frame at the forward end, and by means of which the
distance of the cutters from the ground may readily be changed. If used
for cutting grain a light platform supported upon the main frame of the
machine in such a manner that it may easily be tilted or lifted by the
or the other is
attendant and the grain delivered to either one side
applied.