IMPROVEMENTS IN APPARATUS FOR FLUSHING WATER CLOSETS AND FOR SIMILAR PURPOSESed
Year: 1882

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake,
and Co., Patent Agents Southampton Buildings, London, for an Invention of
"IMPROVEMENTS IN APPARATUS FOR FLUSHING WATER CLOSETS AND FOR
SIMILAR PURPOSES Communicated to him from abroad by John Cooper, of
Boston, Massachusetts, United States of America.
"
COMPLETE SPECIFICATION filed by the said William Robert Lake at the
Office of the Commissioners of Patents on the 31st October 1882.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co., Patent Agents
Southampton Buildings, London. "IMPROVEMENTS IN APPARATUS FOR FLUSHING
WATER CLOSETS AND FOR SIMILAR PURPOSES," Communicated to me from abroad
by John Cooper, of Boston, Massachusetts, United States of America.
This invention relates to apparatus for Blushing water-closets or other sanitary
apparatus before or after using the same. The said invention comprises a double-
faced valve having two seats, the upper seat inverted and placed above the said
valve and intended to hold the water contained in the upper portion of a tank
until the water contained in the said tank below a horizontal partition has been
let out to give the preliminary flush to the apparatus below. Under the lower
valve-seat there is a cylinder, a plunger, an adjusting screw, and an air-port,
arranged to delay the fall of the valve from the upper inverted valve-seat to
the lower valve-seat and thereby allow a sufficient quantity of water to flow from
the upper portion of the tank through both valve-seats into the apparatus below, to
give an after flush.
In the accompanying drawing
Figure 1 is a vertical section through a tank having my improved valve applied
thereto.
Figure 2, is a plan of the underside of the upper valve-seat
Figure 3 is a plan of the lower valve-seat with the valve removed.
A is the tank with the horizontal partition A' near the bottom of the same,
B is the lower valve-seat which is fixed to the bottom of the tank. C is the upper

page_text: valve-seat which is fixed to the horizontal partition A' of the tank. D is the
double-faced valve having leather or other suitable packing n on both sides
thereof. E is the air-cylinder. F is the plunger which is provided with a
packing of leather or other suitable material, and is fixed to the lower end
of the valve-rod G. H is a lever suitably pivotted at the top of the tank and
connected to the valve-rod G. a is the adjusting screw; c c are stays for the
cylinder and the valve-rod guide; o is the air-port made in the inner end of
the adjusting screw a, and passing at a right angle through the bottom of the
cylinder E to form an outlet through which the air contained in the said cylinder
under the plunger F may escape. The coupling and nut at the lower end of the
valve-casing show the usual method of connecting the said valve to a pipe below
the same.
The dotted lines on cach side of the valve-rod, shown in Figure 1,
indicate the air-passage leading to the under side of the valve D, this passage
being intended to allow the water to flow out of the pipe below the valve, when
the latter is in its normal position.
It will be seen that, when the outer end of the lever H is depressed, for example,
by means of a chain or wire connected to the seat or movable portion of the floor of
a water closet, or other sanitary apparatus, the valve D will be lifted against the
inverted valve-seat C, and the water contained in that portion of the tank which
is beneath the horizontal partition A' will be allowed to flow into the apparatus
below, to give the said apparatus a preliminary flush, and by a reverse action,
when the lever on the seat or movable portion of the floor of a water closet is
released and the valve D is about to resume its normal position, the fall of the
said valve is retarded, owing to the adjusting screw a being-turned to partially
close the air-port o and check the outflow of air from the cylinder E under the
plunger F, and thereby time is allowed for water to flow from the upper portion
of the tank into the apparatus below.
This screw a can be so adjusted that a small or large quantity of water can be
let out to give the final after flush to the apparatus below.
Having thus fully described the-said Invention as communicated to me by my
Foreign, correspondent, and the manner of performing the saine, I wish it understood
that I claim.
A double-faced valve having two seats, one of which is inverted and placed
above the valve, in combination with a cylinder, plunger, adjusting screw, and air-
port, substantially as, and for the purposes, set forth.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this Thirty first day of October in the year of our Lord One
thousand eight hundred and eighty two.