IMPROVED APPARATUS FOR REGU- LATING THE SUPPLY OF WATER TO WATERCLOSETS AND OTHER VESSELS
Year: 1872

page_text: LETTERS PATENT to Charles Henry Cawse, of Islington, in the County
of Middlesex, for the Invention of "IMPROVED APPARATUS FOR REGU-
LATING THE SUPPLY OF WATER TO WATERCLOSETS AND OTHER VESSELS."
PROVISIONAL SPECIFICATION left by the said Charles Henry Cawse at
the Office of the Commissioners of Patents, with his Petition, on
the 15th August 1872.
I, CHARLES HENRY CAWSE, of Islington, in the County of Middlesex,
do hereby declare the nature of the said Invention for "IMPROVED
APPARATUS FOR REGULATING THE SUPPLY OF WATER TO WATERCLOSETS AND OTHER
VESSELS," to be as follows:-
My Invention relates to apparatus in which a flexible bag or a cylinder
containing air is employed to retard the descent of the weight lever by
which the supply of water is cut off in waterclosets, lavatories, and other
apparatus; and my Invention consists in providing improved means of
ingress and egress for the air by which the action of the apparatus is
regulated.

page_text: Hitherto the air valve in such apparatus has usually been placed at
the bottom of the case or cylinder, where it is difficult of access in case
of repairs being needed, and is also uncertain in its action, being opened
and closed by the air pressure alone.
According to my Invention I provide inlet and outlet passages for the
air through the rod which connects the flexible bag or the plunger (as
the case may be) to the weight lever. For this purpose I make the rod
tubular, and provide a central passage for the escape of air, regulated by
a cock. This tubular rod is passed through and secured loosely in an
outer tube attached to the bag or to the plunger, to afford a passage
between it and the inner tube to admit air to the apparatus, the inner
tube being provided with a valve which scals the top of the outer
tube on the descent of the weight lever, to prevent the escape of air
through the same.
The inner tube is capable of limited motion in the outer tube sufficient
to open the valve, which is thus effected by the direct action of the
weight lever, instead of by the air pressure as before, the effectual
closure of the valve on the descent of the bag or plunger being similarly
ensured by the pressure of the weight with which the said lever is
loaded.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Henry Cawse in the Great Scal Patent
Office on the 15th February 1873.
1
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HENRY CAWSE, of Islington, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of August, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Charles Henry Cawse, Her special
licence that I, the said Charles Henry Cawse, my executors, adminis-
trators, and assigns, or such others as I, the said Charles Henry Cawse'

page_text: my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVED APPARATUS FOR REGULATING THE SUPPLY OF WATER TO WATERCLOSETS
AND OTHER VESSELS," upon the condition (amongst others) that I, the said
Charles Henry Cawse, my executors or administrators, by an instrument
in writing under my, or 'their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar monthis
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Charles Henry Cawse, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Sheet of Drawings, and to the letters and figures marked thereon (that
is to say) :-
My Invention relates to apparatus in which a flexible bag or a cylinder
containing air is employed to retard the descent of the weight lever or
other agent working the cock or valve by which the supply of water is
controlled in waterclosets, lavatories, and other apparatus; and my
Invention consists in an improved arrangement of the inlet and outlet
passages for the air by which the action of the apparatus is regulated.
Hitherto the air valve in such apparatus has usually been placed at
the bottom of the case or cylinder, where it is difficult of access in casc
of repairs being needed, and is also uncertain in its action, being opened
and closed by the air pressure alone.
According to my Invention I provide inlet and outlet passages for the
air through the rod which connects the flexible bag or the plunger (as "
the case may be) to the weight lever. For this purpose I make the rod
tubular, and provide a central passage for the escape of air, governed by
a cock. This tubular rod is passed through and secured loosely in an
outer tube, attached to the bag or to the plunger, to afford a passagō
between it and the inner tube to admit to the apparatus, the inner
tube carrying á valve, which scals the top of the outer tube on the
i

page_text: descent of the weight lever to prevent the escape of air through tuc
same.
The inner tube is capable of limited motion in the outer tube sufficient
to open the valve, which is thus effected by the direct action of the
weight lever, instead of by the air pressure as before, the effectual 5
closure of the valve on the descent of the bag or plunger being similarly
ensured by the pressure of the weight or spring with which the said
lever is loaded
Figure 1 is a central vertical section of my improved regulator with
the collapsible bag while being raised by the lifting of the pull handle;
Figure 2 shows the same raised and in the act of descending; Figure 3
is a sectional view of a modified arrangement, showing the valve (in
black lines) in the open and (in red lines) in the closed positions.
a is a chamber or cylinder, and b is an air-tight collapsible bag or
diaphragm, the bottom b' of which is a disc of metal, all of the usual
construction. c is the spindle or rod, terminating in a top picce x, pin-
jointed to the weighted lever d of the watercloset or other apparatus as
usual. The lower end of this rod c passes through the disc (or plunger) b',
and is connected thereto by a head or nut c', as shown. The rod c is
made tubular throughout for the exit of the air, the passage of which is
regulated by a cock e according to the rate at which lever d is to descend
and cut off the flow of water. The top piece is fitted on the cock c,
and a radial hole is bored in the body of the cock at e¹, as shown, to
⚫ communicate with the air passage. f is an outer tube, soldered or
otherwise securely fixed to disc ', through which the tubular rod c
passes, and is fitted loosely therein to admit of air passing down between
them when the lever d is raised, as shown in Figure 1. g is the valve,
consisting of an india-rubber washer carried on rod c, which is pressed
upon said tube by the weighted (or spring) lever d, and cuts off the air;
passage when said lever d falls, as shown in Figure 2. is a flange to
support valve g.
Instead of a long outer tube the latter may be reduced in length as
shown in Figure 3, so as to form but a seat for the valve and passage
for the air. It is fitted to disc or plunger b₁ as before, and is cast with a
guide for rod c to slide in. This arrangement is preferred to that shown

page_text: in Figures 1 and 2, as being less expensive. I prefer to make the foot
of tube c which slides in i of reduced diameter, and in one piece with
flange h, which is fitted to tube c, as shown, but it may be otherwise
made. The other reference letters indicate the same parts as in the
former Figures.
The regulating apparatus herein described is fitted in the watercloset,
lavatory, or other apparatus in the usual manner of fitting such regu-
lators, as well understood.
Having described the nature of my Invention, and in what manner
the same is to be performed, I declare that what I claim as my
Invention to be protected by the herein-before in part recited Letters
Patent is, the tubular rod c, with regulating cock e, combined with
valve g and tube or valve seat f, the whole arranged, applied, and ope-
rating in connection with the collapsible bag or plunger of the regulating
apparatus, substantially as and for the purpose herein-before described
and shown in the several Figures of the Drawings.
In witness whereof, I, the said Charles Henry Cawse, have hereunto
set my hand and seal, this Thirteenth day of February, in the
year of our Lord One thousand eight hundred and seventy-three.