An Improved Lawn Tennis Marker.
Year: 1890

page_text: Date of Application, 2nd May, 1890
Complete Specification Left. 31st Jan.. 1891-Accepted. 21st Mar., 1891
PROVISIONAL SPECIFICATION.
An Improved Lawn Tennis Marker.
I, WILLIAM HECTOR AISH, of Victoria House, Bournemouth, Hants, Iron-
monger, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved marker for lining out lawn tennis courts;
and it consists of a trough or vessel to contain the color, mounted in the manner
of a wheelbarrow on a running and marking wheel and propelled by a handle at
rear, the trough being provided at the front with a delivery aperture and spout
by which the color is conveyed to the periphery of the marking wheel, the slot
being normally closed by a stopper or valve carried by a swinging arm mounted
at the front of the trough and so weighted as to automatically swing away from,
and open, the delivery aperture so as to permit the color to flow to the marking
wheel when the handle is raised for the purpose of propelling the marker over the
ground.
Date this 2nd day of Vox 1000
W. H. AISH.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
An Improved Lawn Tennis Marker.
1, WILLIAM HECTOR AISH, of Victoria House, Bournemouth, Hants, Iron-
monger, 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 :-
This invention relates to an improved marker for lining out lawn-tennis courts;
and it consists of a tank to contain the color, mounted in the manner of a wheel-
barrow on a running and marking wheel and propelled by a handle at rear, the
tank being provided at the front with a delivery aperture and spout by which the
color is conveyed to the periphery of the marking wheel, the slot being normally
closed by a valve carried by a pendent arm hung at the front of the tank and so
weighted as to automatically swing away from, and open, the delivery aperture so
as to permit the outflow of the color when the handle is raised for the purpose of
propelling the marker over the ground.
Reference is to be had to the accompanying drawing, forming part of this
Specification, wherein I have represented my improved marker in central
longitudinal section in its position of rest and in broken lines as tilted and in
operation.
A is the color tank provided with legs and a long handle and mounted on the
combined running and marking wheel B. C is the delivery aperture, D the
delivery spout, E the valve, F the valve lever, and G the weight by which it is
operated. The periphery of the wheel B is covered with webbing or other suitable
fabric to retain the color received from the spout D. The valve is a plate of
leather or rubber carried by an arm F hinged at its upper end to the front of
the tank A. The valve lever carries the weight (i at a point at such a distance
in advance of the vertical line passing through the hinge that. when the marker
is in position of rest, the weight will cause the valve to be sufficiently pressed
against its seat to close the delivery aperture and when the marker is tilted, as in
27

page_text: dotted lines, the weight will cause the valve to swing forward and unclose the said
aperture. The valve swings in the spout, and its forward motion therein is
limited by stops d formed by turning in the sides of the spout.
Having now particularly described and ascertained the nature of the said inven
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The herein described lawn-tennis marker consisting in the combination, with the
color tank having the delivery aperture and spout over the running and marking
wheel, of the weighted self-acting valve for closing or unclosing the delivery
aperture according to the position of the tank, substantially as specified.
Dated this 31st day of Jamiary 1891,
Dated this 31st day of January 1891,
•
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.