IMPROVEMENTS IN APPARATUS FOR MARKING THE GROUND, APPLICABLE FOR LAWN TENNIS AND OTHER PURPOSES
Year: 1878

page_text: "
LETTERS PATENT to John Osmond, of Breakspear Road, New Cross, in the
County of Kent, for the Invention of IMPROVEMENTS IN APPARATUS
FOR MARKING THE GROUND, APPLICABLE FOR LAWN TENNIS AND OTHER
PURPOSES"
PROVISIONAL SPECIFICATION left by the said John Osmond at the Office
of the Commissioners of Patents on the 20th February 1878.
JOHN OSMOND, of Breakspear Road, New Cross, in the County of Kent. IMPROVE-
MENTS IN APPARATUS FOR MARKING THE GROUND, APPLICABLE FOR LAWN TENNIS
AND OTHER PURPOSES."
According to my present Invention I construct apparatus for marking a white
or coloured line on the ground as follows:-A framing carried by one or more.
wheels contains a tank or receptacle, which is filled with the liquid coloring
matter with which it is desired to mark the ground. In the tank is suspended by
a loose framing or otherwise a disc or wheel in such manner that it is partly im-
mersed in the liquid coloring matter, the periphery of the part not immersed being
kept in close contact with one of the first-named wheels that run on the ground, so
that the rotation of the latter will cause the former to revolve in the liquid; thus
it will be seen that as the wheels of the apparatus are made to run along the
ground the immersed disc will convey some of the colouring matter from the tank to
the periphery of the wheel with which it is in contact, and this will deposit the
same on the ground, thereby marking this with a straight or curved line.

page_text: apparatus.
The iron framing A is supported on two wheels B, B¹, in line with each
other, and running on the ground. To the frame is fixed a handle C by which the
apparatus is propelled, and a tank D is suspended from the framing, by preference
in a removeable manner, as shewn, the framing having projections a, a, over which
pass wire loops d, d, on the tank, so that on first shifting the tank laterally in one
direction, and then in the contrary direction, it can be consecutively moved on to or
off the projections a. In the tank is suspended a wheel E, the axle of which rests
on inclines a', a¹, on the framing or tank, so that the wheel E tends to move
towards the wheel B, and is thus kept always in contact therewith, the tank being
charged with the coloring liquid, and the apparatus moved along the ground. It
will be seen that as the wheel B revolves it also causes the wheel E to revolve, and
this will consequently take up liquid from the tank and deposit it on the rim of B,
which in its turn will deposit it on the ground. It is evident that an intermediate
wheel might be applied in contact with both B and E, so as to convey the colouring
matter from the former to the latter, but such an arrangement would be an un-
necessary complication of the Japparatus.
Having thus described the nature of my Invention and in what manner the same
is to be performed, I claim, the use of apparatus for marking the ground wherein a
tank or receptacle supported on a wheel or wheels contains a disc or wheel, which
is kept in contact with the periphery of the other wheel or wheels, so as to convey
colouring matter from the tank to the said wheel or wheels, substantially as
described.
In witness whereof, I, the said John Osmond, have hereunto set my hand and
seal, this Thirteenth day of August, in the year of our Lord One thousand
eight hundred and seventy-eight.