Improvements in Agricultural Horse-hoes.
Year: 1898

page_text: Date of Application, 13th May, 1898-Accepted, 23rd July, 1898
COMPLETE SPECIFICATION.
Improvements in Agricultural Horse-hoes.
I, GUSTAV SCHALK, of Sundern, near Wunden, in the Principality of Lippe, in
the Empire of Germany, Landed Proprietor, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The present invention relates to improvements in agricultural horse-hoes,
specially adapted for hoeing turnips, potatoes and similar field crops, and differs
from the known implements of this kind by being more easily steered, reliable in
action, and proof against shocks. The machine is pulled by a draught animal
and steered by a man walking behind the machine.
The annexed. drawing illustrates the general mode of construction of my
machine.
Figure 1 is a vertical section on line x-x of Figure 2.
Figure 2 is a plan of Figure 1.
Figure 3 is a plan of a detail of the machine, illustrating a way of fastening the
hoes to the supporting rod at the centre part of the beams, to which latter all the
other hoes are fastened. The hoes a are of the usual shape and fastened to beams c
by means of cramps b. The beams c are movably fastened to two rods d which
are movably connected to the extremities of the wheel axle e. The wheels f are
mounted on the axle e and are adjustable according to the width of the rows of
the plants. Adjusting rings fl serve for fixing them in their respective positions.
The shafts g for the draught animal are also mounted on the axle e and fixed in
their positions by adjusting rings g¹. The shafts must be so arranged or adjusted
that the animal has no side play in them, to ensure a reliable action of the
machine. A rod h of a bent shape, as illustrated in Figure 1, is movably con-
nected to a joint h', which is fastened to the centre of the axle e. This rod h
serves for steering as well as regulating or manoeuvring the hoes, and is provided
at its other end with a handle bar i. The latter is adjustable on the upright bent
extremity of the rod h, according to the height of the driver, and is provided with
handles. The rod h is supported by a chain k the front end of which is fastened
to a double hook 1. This double hook is fastened to the shafts of the machine.
The chain being fastened to the last hook, the hoes will be in working position.
The depth of penetration of the hoes in the earth may be varied by means of
hooking a different link of the chain to the hook m which serves for fastening the
rear end of the chain. The position of the hook m may be altered on the rod h.
A spiral spring kl is preferably inserted in the chain to give it elasticity and pre-
vent interruption of the work of the hoes when, for instance, the wheels strike
against a stone.
By hooking the front end of the chain to the front hook of the double hook Ɩ,
the hoes will be raised above the ground or soil which enables the machine to
be easily transported or moved on roads etc. It is advantageous to provide this
hook with a safety chain.
of
The connection of the steering rod h with the main frame is effected by means
supporting rod n which is fast to the beams c, thereby causing the latter to

page_text: be rigid in their relative positions. To prevent the connection of the beams with
the supporting rod disturbing the fastening of the hoes to the centre part of the
beams, holes s (see Fig. 3) are provided in the supporting rod at this point in which
the hoes may be secured by suitable means, such for instance as a thumb-screw.
The handle-bar is preferably vertically rotatable on the rod h to ensure its
being always parallel to the beams c when the latter have been altered from the
position illustrated in the drawing, and thus allow an easy manipulation of the
machine by the driver.
The arrangement of having the hoes fastened to two beams and interspaced,
possesses the advantage of preventing the implement from getting choked or
clogged up and an easy working of the machine is thus ensured.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a horse-hoe the combination, with the vehicle carriage of the frame
carrying the hoes swivelled at each end to the vehicle axle and a steering rod
adjustably attached to the said frame, substantially as and for the purpose
described and illustrated.
2. In a horse-hoe the combination with the vehicle carriage of the frame carry-
ing the hoes swivelled at each end to the vehicle axle, a steering rod adapted to be
operated from the rear attached to the said frame and the device for regulating
the depth of penetration of the hoes in the soil, consisting of the chain one end
of which is attached to an adjustable hook such as m on the steering bar the other
to a double hook such as l on the shafts and the elastic insertion such as a helical
spring in the said chain, substantially as and for the purposes described and
illustrated.
3. A horse-hoe constructed operated and working substantially as described and
.set forth.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.