Improvements in Valve Water Closets.
Year: 1894

page_text: Date of Application, 23rd Oct., 1894
Complete Specification Left, 18th July, 1895-Accepted, 7th Sept., 1895
Improvements in Valve Water Closets.
We, EDWARD HANDFIELD MORTON, and HERBERT EDWIN BADEN, both of
88 Wigmore Street, London, W., Sanitary Engineers do hereby declare the nature
of this invention to be as follows:-
Our invention relates to improvements in the construction of valve-box and
overflow trap used for water closets of the type known as "valve closets" having
for object to prevent syphoning of this trap, and to ensure an efficient overflow
under all conditions through the trap and valve-box.
It consists in the construction in a single piece or casting of the earthenware or
metal valve box and the overflow trap, and the special forn of the trap and of its
communication with the valve box; and further, in the construction in one piece
of the cover of the valve box with an extension over the overflow-trap fitting into
a flange continued around the top edge of the latter and provided with a metal rim
to receive the lower end of the overflow arm, the upper end of which joins the pan
or basin. The invention also consists in the formation or casting of the metal dip
or seal of the trap in one piece with the valve-box cover which is so formed as to
fit closely into a hollow seat provided for it on the valve box.
Alternately we may make the dip or seal of earthenware or other suitable
material in which case it will necessarily be separate from the valve box cover.
The valve box which may be of any ordinary form and made either of metal or
pottery is arranged immediately under the pan or basin which fits into a circular
collar provided on the cover of the valve box. Preferably the latter is tapered or
contracted downwards to its connection with the soil discharge pipe. Connected
in one piece with the valve-box the trap is of the bag form and has a lateral
opening for communication with the valve box near its upper edge. A flange is
formed on the top of the trap to receive the cover which is cast in one piece
with the cover of the valve box. Preferably the top of the trap is of approxi-
mately oval section, one half whereof is closed by the cover, and the other half
open to correspond with a semi-elliptical opening formed in the cover to admit
the lower end of the overflow arm or pipe, which at its upper end communicates
with the pan or basin by means of suitable perforations provided in the side
thereof for the passage of the overflow water. The dip or seal of the trap
divides it vertically downwards to a sufficient distance below the level of the
lateral opening into valve box to ensure an efficient water seal therein. At its
upper part the dip forms a semi-elliptic rim corresponding with the opening for the
overflew pipe, while its vertical part is in the form of a plate of the width of the
interior diameter of the trap.
By this arrangement on the flush being opened overflow water from the pan or
basin passes through the side orifices into the overflow pipe and thence through the
trap into the valve-box by way of the lateral opening.
Upon the flush being shut off water will remain in the trap above the level of
the lower edge of the dip thus effectually sealing it, and by reason of the special
form of construction described averting the possibility of syphoning out.

page_text: The pan or basin is sealed in the ordinary manner by water remaining or
entering therein after the valve is closed.
Dated this 23rd day of October 1894.
improvements in valve water Closets.
We, EDWARD HANDFIELD MORTON and HERBERT EDWIN BADEN both of
88 Wigmore Street, London, W. Sanitary Engineers, 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 :-
Our invention relates to improvements in the construction of valve box and
overflow trap used for water closets of the type known as "valve closets"; having
for object to prevent syphoning of this trap, and to ensure an efficient overflow
under all conditions through the trap and valve box.
It consists in the construction in a single piece or casting of the earthenware or
metal valve box and the overflow trap, and the special form of the trap and of its
communication with the valve box; and further, in the construction in one piece of
the cover of the valve box with an extension over the overflow trap, fitting
onto a flange continued around the top edge of the latter and provided with a
metal rim, to receive the lower end of the overflow arm, the upper end of which
joins the pan or basin.
The invention also consists in the formation or casting of the metal dip or seal
of the trap in one piece with the valve box cover which is so formed that it fits
closely into the mouth or upper portion of the trap.
Alternatively we may make the dip or scal of earthenware or other suitable
material, in which case it will necessarily be separate from the valve box cover.
In order that our invention may be the better understood reference is had to the
accompanying drawings upon which :-
Figure 1 represents a front view or elevation of our improved valve box with
cover and basin complete.
Figure 2 is a plan of the valve box cover.
Figure 3 is a section through line 1-2. shewing outlet from overflow trap to
valve box.
Figure 4 is a section through line 3-4 shewing trap and valve box cast in one
piece.
The valve box A may be of any ordinary form, and made either of metal or
pottery, and is arranged immediately under the pan or basin B which fits into a
circular collar or flange C provided on the cover D of the valve box A. Preferably,
the latter is tapered or contracted downwards to its connection with the soil
discharge pipe E. Formed in one piece with the valve box A, is the trap F which
is of a bag form and has a lateral opening f near its upper edge for communication
with the valve box A.
A flange G is formed on the top of the trap to receive the cover of the valve
box A. Preferably the top of the trap is of approximately oval section, one
half whereof is closed by the cover D'and the other half open to correspond
with a semi-elliptical opening formed in the cover D to admit the lower end
of the overflow arm or pipe H which at its upper end communicates with the
pan or basin B by means of suitable perforations provided in the top and side
thereof for the passage of water. The dip or seal of the trap, which is formed
in one piece with the cover, divides it vertically downwards to a sufficient

page_text: distance below the level of the lateral opening f into valve box A, to ensure
an efficient water seal therein. The dip is in the form of a semi-elliptic tube
corresponding with the opening for the overflow pipe H.
By this arrangement, on the flush being opened, a portion of the supply or
discharge water flows through the perforation in the basin, into the overflow pipe H
passing down into the trap, and thence by way of the lateral opening to the valve
box A.
Upon the flush being shut off water will remain in the trap above the level of
the lower edge of the dip thus effectually sealing it.
The pan or basin B is sealed in the ordinary manner by the water remaining or
entering therein after the valve is closed.
Having now particularly described, and ascertained the nature, of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
1. In valve closets, the combination of an overflow trap formed in one piece
with the valve box, substantially as described, and illustrated on the accompanying
drawings.
2. In valve closets the dip or seal formed in one piece with a cover enclosing the
valve box and trap, the said dip being arranged to fit closely within the mouth or
upper portion of the trap, as described.
3. Valve closets constructed, combined and arranged, substantially as illustrated
and for the purposes set forth.
אני.
ليمد
CT 1
100-