Improvements in or relating to Anti-syphon Pipes for Water Closets.
Year: 1894

page_text: Date of Application, 10th Nov., 1894-Accepted, 15th Dec., 1894
COMPLETE SPECIFICATION.
Improvements in or relating to Anti-syphon Pipes for Water
Closets.
1, WILLIAM TATE, of 29 Kenilworth Road, Kilburn, in the County of
London, England, Plumber, 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 :-
This invention relates to anti-syphon pipes which are used to prevent the water
in the closet. trap from being drawn away by suction when the pan is flushed with
water.
The usual method is to fix these anti syphon pipes on to closet traps by means
of lead pipes having brass terminals, this entails a considerable amount of labor,
and should a trap in any way get broken, before it can be removed this lead pipe
bas to be cut or disconnected, thus causing expense and trouble in refixing.
Now the object of my invention is to suitably and easily connect the anti-
syphon pipe with the projecting branch of the soil pipe, so that an ordinary Por S
shaped trap may be used, and should the trap get broken it may be removed
without having to interfere with the anti-syphon pipe.
But in order that my invention may be better understood I will now refer to the
accompanying sheet of drawings which are to be taken as part of this Specification
and read therewith.
Figure 1, illustrates the position of the anti-syphon pipe upon a soil pipe branch
piece, and Figure 2, is a sectional view of the branch piece and also the anti-syphon
pipe connection.
Similar letters of reference indicate similar or corresponding parts where they
occur in both views.
In the drawings (A) represents an ordinary closet pan (B), a P shaped trap,
(C) a branch piece of the soil pipe and (D) an anti-syphon pipe.
In carrying out my invention I form upon the branch piece (C) a suitable
socket (E) into which is inserted one end of a cast iron elbow connection or
bend (F), the other end of this bend is inserted into a similar socket (G) formed
upon the end of the anti-syphon pipe. Said elbow connection or bend (F) may
be made in any shape to suit the position of the anti-syphon pipe, and may also
be turned to meet any angle of branch; say for instance where the pipe D is
straight the bend (F) would be extended upwardly so as to fit into the socket.
When the desired position of the bend is obtained the joints are caulked with lead
in the usual manner.
It may be here explained that where a double branch piece connection with one
soil pipe, is used the anti-syphon pipe would be connected with a suitable bend
attached to each branch in a similar way to that herein-before described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Firstly. The combination and arrangement with a soil pipe branch piece (C) or
equivalent, of the anti syphon pipe (D) substantially as, and for the purposes
herein described and as illustrated in my drawings.

page_text: Secondly. The combination and arrangement with a soil pipe branch piece (C) or
equivalent, of the sockets (E) and (G) bend or elbow connection (F) and anti-
syphon pipe (D) substantially as, and for the purposes herein described and as
illustrated in my drawings.
Dated this 9th day. of November 1894.
W. D. ROWLINGSON,
172, Queen Victoria Street, London, E.C.,
Agent for the Applicant.