Improvements in Syphon Waste-water Flushing Closets.
Year: 1899

page_text: Date of Application, 16th Mar., 1899 -Accepted, 29th Apr., 1899
COMPLETE SPECIFICATION.
Improvements in Syphon Waste-water Flushing Closets.
I, WILLIAM THOMAS OWENS, of Alltwen, Pontardawe, in the County of
Glamorganshire, Registered Plumber, do hereby declare the nature of this inven-
tion and in what manner the saute is to be performed, to be particularly described
and ascertained in and by the following statement; —
My invention relates to improvements in syphon slop or waste-water, closets;
the object of my invention is 1 to provide a perfect syphon slop or waste-
water closet, to hold and retain the liquid until the pan becomes sufficiently
filled with it, to automatically bring the syphon into action, and thus discharge
the contents of bowl or pan instantaneously and with a thorough cleansing force
into the drain with which it may be connected; 2, to provide a perfect syphon
slop or waste-water closet, which will have a double trap to prevent the escape
of sewer gas, and when set in motion, as before described, will give a greater
Hushing power than that obtained by the ordinary flushing cistern in connection
with water-closets and supplied direct from the water-nains; 3, to furnish a
closet into which slop or waste-water may be conveniently emptied for flushing it,
tlius effecting a great saving, not only in the cost of laying water-mains for the
purpose of flushing, but also in the daily consumption of clean water.
I attain these objects by the mechanism illustrated and described in the accom-
panying drawing and following specification in which―
Fig. 1, represents a central cross section of my improved syphon slop or waste
water closet.
Similarly, letters of reference, indicating the different parts of the closet,
are shewn in the drawing.
Referring to the drawing Fig. 1, A, designates the base flange of the closel;
C, the lowl or pan, which is made deep in order that it may hold a sufficient
quantity of water to effect a thorough flush. The bowl or pan is provided with
a rim or lip D, which extends some distance inwards, with its surface sloping
slightly in the direction of the centre of the bowl or pan, to prevent the waste-
water, when thrown in, from being forced over the edge to the outerside.
H indicates a commodious passage and extends upwards at the back of rear
wall, E of the bowl, to nearly the level of the top of the closet, where it is curved
and returned downwards, almost parallel with the first named portion, and
extending under the bowl, or it may be carried perpendicularly from the curved
part to the base line or thereabouts.
K, shows a peculiar semi-circular form of projection on the lower side of the
curved part of the pipe H, which will cause the water when flowing over it to fall
through the centre of the muter portion of the passage, thereby bringing the
syphon into operation, and thus dispensing with the water get as used in this
connection with other syphons for the displacement of the air.
P, is a lead trap, preferably an anti D or self cleansing trap, which is to
have a water seal proportionately with the height the water will be required
to rise in bowl above K. This trap will be securely attached to the pipe H
under the floor line and connected with the drain or soil pipe.

page_text: In describing the operation of my said invention, I will assume that the syphon
has discharged the contents of the bowl into the drain or soil pipe and has resumed
its normal state. When the water seal in the lead trap will be on a level with
the line B, the seal in the bowl will also be on a level with line B³, thereby
forming a double seal to prevent the escape of air or sewer gas.
As the water on being poured into the closet, rises in bowl C, it also risen in
the passage H. The air in H being thus compressed, forces the water down into
Pand up into P¹. When the water has reached the level of line B', it overflows K
sweeping the air out before it, and bringing the syphon into instantaneous action.
when the contents, with the exception of the depth of water arranged to form a
seal, is discharged with great force into the drain in three or four seconds.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a slop waste-water syphon closet, with a combination of bowl and support-
ing base, a discharge passage extending first upwards from said bowl curved at the
top and adapted to co-operate therewith to form a trap, and then downwards
under the said bowl to form a long syphon leg, or it may extend perpendicularly
from the top to the base lino.
"A
2. A peculiar semi-circular projection K, placed on edge of syphon H, whereby
the water at commencement of discharge is thrown centrally into the long limb
of syphon H, thereby sweeping the air out through trap P causing the said
syphon limb to fill and instantly discharge the contents of the bowl.
3. The lead trap used in conjunction with the above is so arranged that the
depth of scal shalf be equal in P, K, and B, so that the water shall be balanced
preparatory to syphon starting to work.
4. The combination and arrangement of parts forming the improved slop waste-
water syphon closet, as described and illustrated in the accompanying drawing.
Dated this 16th day of March 1899.
J. B. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.