A Gas or Oil Motor Mowing Machine.
Year: 1895

page_text: Date of Application, 1st Nov., 1895
Complete Specification Left, 31st July, 1896-Accepted, 12th Sept., 1896
PROVISIONAL SPECIFICATION.
A Gas or Oil Motor Mowing Machine.
1, FRANCIS Crumpton Nunn, of Eastnor, Sydenham Hill, Surrey, Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention relates to the construction of a mowing machine worked by a gas
or oil motor engine, so arranged that the cutters when in action accommodate them-
selves to inequalities of the ground and can be easily raised out of action and that.
the whole machine can be readily steered.
For this purpose I mount the main frame of the machine with its front part
supported on a pair of driving rollers and its rear part on a steering roller. This
main frame carries the engine, the vessel or vessels containing a supply of
compressed gas or of oil, and a tank for the cooling water. Under the main frame.
another frame is suspended by springs from the axle of the driving rollers, on which
this lower frame can oscillate vertically. It carries at its front a set of rollers,.
behind which is mounted the cutter roller, and on the rear end of the frame bears
the end of an adjusting screw which extends down from the upper frame. The
engine gives motion to the driving rollers through chain or other convenient*
gearing, and also to the cutter roller which may be driven from the axle of the
driving rollers.
Clutches are provided by which the driving rollers and the cutting roller can'
be disengaged from the driving gear. As the machine is propelled by the rotation
of the driving rollers, the front rollers (which are usually off the ground) as they
pass over inequalities of the ground cause the lower frame to oscillate raising and
lowering the cutting roller in accordance with these inequalities. By screwing
down the adjusting screw the front of the lower frame along with the cutting roller
can be raised entirely off the ground; or the cutting roller can be more or less-
raised to vary the depth of cut.
The steering wheel is mounted in a fork having its axis pivotted in a bearing in.
the main frame and provided with a steering handle.
An attendant walking behind the machine can work the steering handle, the
clutch levers, and such parts of the engine as require manipulation. The bearings
of the cutting roller or of the front rollers may be made vertically adjustable in.
the lower frame.
Dated this 1st day of November 1895.
,
ABEL & IMRAY,
Agents for the Applicant.
A Gas or Oil Motor mowing machine.
I, FRANCIS CRUMPTON NUNN, of Eastror, Sydenham Hill, Surrey, Engineer,.
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 :-
My invention relates to the construction of a mowing machine worked by a gas.

page_text: or oil motor engine, so arranged that the cutters when in action accommodate
themselves to inequalities of the ground and can be easily raised out of action, and
that the whole machine can be readily steered.
For this purpose, I construct the machine as I shall describe referring to the
accompanying drawings, Fig. 1 being a side view and Fig. 2 a plan. I mount the
main frame O with its front part supported on a pair of driving rollers K K and
its rear part on a steering roller L. This main frame carries an oil engine A an
oil reservoir B and a tank C for the cooling water and a box D for the exhaust.
Under the main frame O another frame Q is suspended by springs R from the
axle of the driving rollers K, on which this lower frame Q can oscillate vertically.
It carries at its front a set of rollers N, behind which is mounted the cutter
roller M, and on the rear end of the frame Q bears the end of an adjusting
screw S which extends down from the upper frame O. The engine, of which F
is the fly wheel, gives motion to the driving rollers K through chain I, and also
to the cutter roller M which is driven from the axle of the driving rollers by
chain J.
Clutches are provided by which the driving rollers and the cutting roller can be
disengaged from the driving gear. G is the clutch lever for the driving rollers
and H is the clutch handle for the cutting roller, P is a tipping box for carrying
cut grass or other material. T is a bracket to which is attached the box for
receiving the cut grass, which being of ordinary construction is not shewn.
As the machine is propelled by the rotation of the driving rollers K, the front
rollers N (which are usually off the ground), as they pass over inequalities of
the ground cause the lower frame Q to oscillate raising and lowering the cutting
roller M in accordance with these inequalities.
By screwing down the adjusting screw S the front of the lower frame along
with the cutting roller can be raised entirely off the ground; or the cutting roller
can be more or less raised to vary the depth of cut.
The wheel L is mounted in a fork having its axis pivotted in a bearing in the
main frame and provided with a steering handle.
An attendant walking behind the machine can work the steering handle, the
clutch levers, G and H, and such parts of the engine as require manipulation.
The bearings of the cutting roller or of the front rollers may be made vertically
adjustable in the lower frame.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, 1 declare that what 1
claim is :-
A gas or oil motor mowing machine constructed and operating substantially as
described with reference to the drawings.
ABEL & IMRAY,
Agents for the Applicant.