Improvements in Water Closets.
Year: 1895

page_text: Date of Application, 7th Mar., 1895
Complete Specification Left, 20th May, 1895-Accepted, 14th Dec., 1895
Improvements in Water Closets.
I JOHN LANYON of the Northern Bank Chambers Royal Avenue in the City of
Belfast and County of Antrim Civil Engineer and Architect do hereby declare
the nature of this invention to be as follows:-
My invention relates to the construction of the basins of water closets of the
description known as "wash down "closets and to the after-flushing arrangements
whereby the soiling of the basin and the danger of injury thereto or to the
after-flush chamber by frost is avoided or diminished.
For this purpose I construct a basin having the back wall plumb or nearly so
and the front and sides tapering slightly in a straight or nearly straight line down
to the level of the water deposit. I form the top of the basin with a projection in
front resembling the stock end of a longitudinally divided pear and furnish it with
an internal flanged lip or rim to convey the water.and with a flat fillet run round
the outside of the rim. I provide a separate after-flush chamber in connection with
the water supply pipe and attach same by couplings or other suitable arrangement
to the back of the basin.
Dad in 6th La al 190
HUGH HYNDMAN,
8 Chichester Street Belfast, Agent for Applicant.
1 JOHN LANYON of the Northern Bank Chambers Royal Avenue in the City
of Belfast and County of Antrim Civil Engineer and Architect 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:-
My invention relates to the construction of the basins of water closets of the
description known as "wash down" closets and to the flushing arrangements
whereby the soiling of the basin is avoided or diminished.
For this purpose I construct a basin with any of the ordinary materials but
having the back wall plumb or nearly so and the front and sides tapering slightly
in a straight or nearly straight line down to about the level of the water deposit.
The back wall is well to the rear of the top opening and the front wall well forward
and carried downwards whereby I provide a long and deep reooptacle for the water
deposit the upper surface of which lies ten inches or more below the top fillet of
the closet while I make the top opening of comparatively small dimensions so that
the excreta may fall into deep water in every case or at most with rare exceptions
and splashing will be greatly reduced..
1 form the top of the basin with a projection in front somewhat resembling the
stalk end of a longitudinally divided pear which projection I carry down the front of
the basin like a groove or hollow to or below the level of the water deposit and I
furnish it with an internal flanged lip or rim sloping inwards with a quick in-turn
from the rounded inner edge of the rim and forming a chaunel along the top to.
ID 17

page_text: it out.
convey and discharge around the walls of the basin the water supplied for washing
The Bange of this internal lip or rim is connected along its under edge to
the wall of the basin throughout only a part of its length and the openings formed
by the unconnected part gradually increase by curved lines until they reach a
vertical stop or division piece in the centre of the groove. Where so connected I
provide the flange at intervals with perforations for the discharge of the water
flowing from the supply pipe and I arrange such perforations or openings so that
their capacity for discharge shall be equal or nearly equal to the flow from the
supply pipe. I also furnish the top of the basin with a wide flat fillet run round
the outside of the rim and give such rim and fillot a slope in towards the basin to
prevent any wet overflowing the outer edge. By constructing the basin with an
opening in the manner I have described and keeping the top at the height of pre-
ferably about thirteen and a half inches for a child or young person and about fifteen
and a half inches for an adult, I may dispense with the addition of a wooden seat
and lid. At or immediately below the internal flanged lip or rim I form the wall
of the basin with a slight shoulder so as to throw a portion of the water discharged
from the channel directly towards the back and centre and upon the bottom or
opposite walls of the basin and by its force to remove any soil or other matter
that might be adhering thereto.
In my Provisional Specification I proposed to provide a separate and supple
mental after-flush chamber in connection with the water supply pipe and to attach
same by couplings or other suitable means to the back of the basin in order to
protect the basin against injury by frost but I have since discovered that my device
had been anticipated by Letters Patent No. 13130 granted to Job Deeley on the
31st day of October A.D. 1885, wherefore I hereby abandon so much of my said
Provisional Specification as contemplated the construction of a separate or
supplementary after-flush chamber.
In connecting such an after-flush chamber with the supply pipe however I use a
bevelled joint above the chamber and having its lowest level point opposite to or
away from the chamber which joint is left open or the supply pipe is provided with
a slight projection on the inside so that any drop from the supply pipe may pass
down to such lowest point and thence clear of the chamber along the supply pipe
into the basin thereby lessening the risk of the chamber freezing up.
And in order that my said invention may be more fully understood I shall now
proceed particularly to describe the same by reference to the several drawings upon
the sheet hereunto annexed, the same letters of reference indicating the same or
corresponding parts of my improved water closet throughout all the figures
thereon.
Fig. 1 is a plan, one half showing the top and fillet with the projection formed
at the front thereof, and the other half showing the flanged lip or rim partly
perforated and partly open on the under side for the discharge of the supply water
and having a short longitudinal slot to discharge a portion of such water immediately
below the inlet also the supply pipe to the back of which an after-flush chamber
may be attached as shown. One half of this plan follows the line A B ou
Fig. III.
Fig. 1 is a cross section on the line C D on Fig. I shewing the flat filleted
top, the flanged lip or rim with its quick inturu direct from the rounded inner edge
thereof, the perforations underneath on the side to the left and the opening on the
side to the right; also the side walls, the water deposit and the supporting stand of
the basin and
Fig. 1 is a longitudinal section the line E Fon Fig. I showing the walls
and the flanged lip or rim at the frd and back of the basin, the supporting stand,
the water deposit, the escapement orifice and an aperturo to receive a pipe or
tube for carrying off sewer gas and equalizing the air pressure on both sides of the
trap; also the supply pipe with bevelled joint for the attachinent of an after-flush
chamber attached to the back thereof. a is the back or rear wall of the basin;
b is the front wall; oc are the side walls and d is the water receptacle having the

page_text: bottom suitably shaped to ensure a sufficient depth of water; e is the internal lip
or rim; is the wide flat sloping fillet on its outer edge and g is the projection in
front of the busin; his the flange on the lip or rim, e, falling inwards, partly
connected to the wall of the busin and perforated and partly open and disconnected
with such wall; ii are perforations in the flange, h, where connected with the wall
of the basin; is the opening left by the disconnected part of the flange and lis
the longitudinal slot between the flange, h, and the back wall a; m is a stop similar
to those ordinarily used where branches of the water channel, n, n meet in front of
the basin o is a slight shoulder on the wall at or immediately, below the channel, n,
to throw part of the water supply towards the back or into the centre or upon
the opposite walls of the basin; p is the water supply pipe having a bevelled
joint for connecting an after-flush chamber, s, to the supply pipe, p; is the
escapement orifice; » is an aperture into which a pipe or tube may be fixed for
carrying off sewer gas and preventing syphoning and is a wooden seat or lid.
+
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I would have it to be
understood that I do not claim as of my invention or the exclusive use of a basin
having a projection in front and an internal lip or rim flanged and filleted or a
perforated and slotted water chanuel and a supply pipe connected by a bevelled
joint to an after-flush chamber except when the same are constructed specially and
employed according to my invention nor do I claim the use of a separate or
supplemental after-flush chamber, bevelled or other joints, escapements, apertures or
pipes or any of the separate mechanical parts employed in the construction of my
improved water closet but I declare that I claim
1. The manufacture and use of water closets having a wash down basin
constructed and employed substantially in the manner and for the purposes
hereinbefore described and shewn in the drawings hereunto annexed;
2. The manufacture and use of basins in the water closets referred to having a
grooved projection in front constructed and employed substantially in the manner
hereinbefore described and shewn in the drawings hereunto annexed
3. The use in water closets of a bevelled joint to connect a separate or supple-
mental after-flush chamber, separate from the basin, constructed, arranged and
employed substantially in the manner and for the purposes herein before described
and shewn in the drawings hereunto annexed: and
4. The combination and arrangement of parts constituting my improved wash
down water closet constructed and employed substantially in the manner and for
the purposes hereinbefore described and illustrated in the drawings hereunto
annexed.
Dated this 19th dow of Mov 1895
HUGH HYNDMAN,
6 Chichester Street, Belfast, Agent for Applicaut.