AN IMPROVED FLUSHING APPARATUS FOR WATER-CLOSETS, THE SAME BEING APPLICABLE TO OTHER ANALOGOUS PURPOSES
Year: 1879

page_text: LETTERS PATENT to David Gill, of Weston super Mare, in the County of
"
Somerset, for the Invention of AN IMPROVED FLUSHING APPARATUS
FOR WATER-CLOSETS, THE SAME BEING APPLICABLE TO OTHER ANALOGOUS
PURPOSES."
Sealed the 5th September 1879, and dated the 10th March 1879.
PROVISIONAL SPECIFICATION left by the said David Gill at the Office of
the Commissioners of Patents on the 10th March 1879.
DAVID GILL, of Weston super Mare, in the County of Somerset. "AN IMPROVED
FLUSHING APPARATUS FOR WATER-CLOSETS, THE SAME BEING APPLICABLE TO OTHER
ANALOGOUS PURPOSES."
The first part of this Invention consists in the construction and arrangement of
certain improved apparatus applicable to cisterns or receptacles for containing water
for flushing water-closets and other analogous purposes. The arrangement consists
of a cylindrical rod with a globe shaped valve formed of india rubber or any other
suitable material terminated by a screw nut, the upper part of the cylindrical rod
being encased within a larger hollow cylinder provided with a short spindle air-
valve connected to the ball-lever on the top. At the side of the cylindrical valve
is a guide or slot for the stem of the buoy-cock, which latter is kept up during the
operation of flushing. By means of these arrangements a simultaneous supply of
air and water is ensured.
The second part of this Invention consists in the arrangement of a funnel shaped
cup which serves as a seat for the valve, a junction for the pipe-connection being
provided. The cylindrical valve is kept in position by two moveable guides. By
means of these arrangements the fall of water from the flush-box to the closet basin
is unbroken, and a plentiful supply of air is ensured where most needed, that is to
say, under the water head and immediately over the flush pipe. During the
operation of flushing, the ball of the supply cock is kept up by the upward action
of the cylindrical valve, after which, with the simultaneous fall of the cylindrical

page_text: It
rod and the ball, a fresh supply of water takes place, and the ball is left at liberty
to float with the rising water with the same freedom as in ordinary cases.
should be observed that no air can be admitted except during the time of flushing.
One of the objects sought to be secured by the use of the short cylindrical valve is
to prevent the consequences which would result in case the globular valve were
allowed to drop on to its seat before the cistern or the flushing pipe is empty,
whereby the air supply would be cut off and the water flush deprived thereof.
Another advantage obtained by the employment of the short cylindrical valve is
that the possibility of air being drawn from the closet basin during the time of
refilling after flushing is prevented.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said David Gill in the Great Seal Patent Office on the 9th September
1879.
DAVID GILL, of Weston super Mare, in the County of Somerset. "AN IMPROVED
FLUSHING APPARATUS FOR WATER-CLOSETS, THE SAME BEING APPLICABLE TO OTHER
ANALOGOUS PURPOSES."
The first part of my said Invention consists in the construction and arrangement
of certain improved apparatus applicable to cisterns or receptacles for containing
water for flushing water closets and other analogous purposes. The arrangement
consists of a cylindrical rod with a globe shaped valve (formed of india rubber or
any other suitable material) terminated by a screw nut, the upper part of the cylin-
drical rod being encased within a larger hollow cylinder provided with a short
spindle air valve connected to the ball lever on the top. At the side of the cylin-
drical valve is a guide or slot for the stem of the buoy cock, which latter is kept up
during the operation of flushing. By means of these arrangements a simultaneous
supply of air and water is ensured.
The second part of this Invention consists in the arrangement of a funnel shaped
cup which serves as a seat for the valve, a junction for the pipe connection being
provided. The cylindrical valve is kept in position by movable guides. By means
of these arrangements the fall of water from the flush box to the closet basin is
unbroken and a plentiful supply of air is ensured where most needed, that is to
say, under the water head and immediately over the flush pipe. During the
operation of flushing, the ball of the supply cock is kept up by the upward action of
the cylindrical valve, after which, with the simultaneous fall of the cylindrical rod
and the ball, a fresh supply of water takes place and the ball is left at liberty to
float with the rising water with the same freedom as in ordinary cases. It should
be observed that no air can be admitted except during the time of flushing.
One of the objects sought to be secured by the use of the short cylindrical valve
is to prevent the consequences which would result in case the globular valve were
allowed to drop on to its seat before the cistern or the flushing pipe is empty,
whereby the air supply would be cut off and the water flush deprived thereof.
Another advantage obtained by the employment of the short cylindrical valve is
that the possibility of air being drawn from the closet basin by the flushing pipe
except during the time of refilling after flushing is prevented.
I will now proceed to refer to the accompanying Drawings, from which the nature
of my said Invention will be more clearly understood. Figures 1 and 2 are cross
sections taken at right angles to each other of a cistern or other receptacle showing
arranged therein the apparatus, also partly in section, constituting my said Inven-
tion. The same letters of reference indicate similar parts in both Figures. A is the
cylindrical rod having the globe shaped valve a at one end thereof; a¹ is the seat
of the said valve; B is a hollow cylinder encasing the upper part of A and con-
taining the short spindle air valve C; D is the guide for the stem of the buoy
cock E; F are guides for the valve mechanism; and G is the connecting chain or
cord by which both valves are actuated, as will be well understood.
Having thus described and ascertained the nature of my said Invention, and
the manner in which the same is to be performed, I would observe in conclusion
that what I consider novel and original, and therefore claim as constituting the
Invention secured to me by the said hereinbefore in part recited Letters Patent
are,-
First. The combination and arrangement of the small spindle, air valve, and
hollow cylindrical rod and valve, substantially as and for the purposes hereinbefore
described and set forth.

page_text: And, Secondly. The combination and arrangement of mechanism constituting the
flushing apparatus, substantially as and for the purposes hereinbefore described and
set forth.
In witness whereof, I, the said David Gill, have hereunto set my hand
and seal, this Sixth day of September, in the year of our Lord One
thousand eight hundred and seventy nine.
DAVID GILL. (L.S.)