An Improved Syphon Drain Trap.
Year: 1893

page_text: Date of Application, 6th Oct., 1893
Complete Specification Left, 6th July, 1894-Accepted, 25th Aug. 1894
An Improved Syphon Drain Trap.
I, HENRY LEWIS, of No. 72, Bensham Grove, Thornton Heath, in the County of
Surrey, Millwright and Engineer do hereby declare the nature of this invention to
be as follows:-
It consists of a syphon drain trap made in either malleable cast iron or ordinary
cast iron, or such other metal or material as I may think fit, either galvanized
or non-galvanized, and made in two portions, securely attached to each other, one
of which is easily removable for inspection or cleansing purposes, without
interference with any pipes which may be connected to it; and which said syphon
drain trap can be connected to the necessary piping by brass or other unions
without the necessity of making any plumber's joints.
Dated this 5th day of October 1893.
HENRY LEWIS,
Millwright and Engineer.
COMPLETE SPECIFICATION.
An Improved Syphon Drain Trap.
J, HENRY LEWIS, of 72, Bensham Grove, Thornton Heath, in the County of
Surrey, Millwright and Engineer, 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 syphon drain traps, and it consists in making the trap
in two parts, one of which is easily removable without interfering with any of its
pipes, the object being to provide for the inspection and cleansing of the trap.
I attain this end in the manner shown by the accompanying drawing, in
which:-
Figure 1 is a view in side elevation of my improved trap.
Figure 2 is a view in elevation of the trap with the removable part detached.
Figure 3 is a view in elevation of the detachable part.
Figure 4 is a view in transverse section on line a, x, Figure 1, and
Figure 5 is a view in plan of that part of the trap shown by Figure 2.
Throughout the views similar parts are marked with like letters of reference.
According to my invention I form the trap in two parts A and A', one of the
said parts-preferably the part A-being provided with channels or grooves a,
and the other part A¹ being provided with lips a', a', to engage with the channels
or grooves a in the part A and make with the aid of red lead or its equivalent,
& watertight joint. The part A' is fixed to the part A by means of small bolts and
nuts B, B, etc.
The part A at the parts adapted to form the entrance and exit of the trap is
provided with complete bosses A², A², to receive the necessary pipes Y and Z,
which are preferably attached by the joints or couplings particularly illustrated in
Figures 1 and 2, or by any other suitable unions to dispense with the necessity of
making plumbers joints. The vent pipe V is also connected to the part A in a
similar manner. By thus providing for the attachment of these pipes to the trap
the detachable part A' can be removed and re-attached without disturbing or
breaking the joints of the said pipes.

page_text: 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. The improved syphon drain trap, substantially as hereinbefore described and
illustrated by the accompanying drawing.
2. In a syphon drain trap, constructing the body of the trap in two parts and
providing for the attachment of the connecting pipes to one part of the body of the
trap, as and for the purpose set forth.
3. In a syphon drain trap of the type described and claimed by the preceding
claim attaching the connecting and other pipes to the body of the trap by running
joints or coupling unions, as and for the purpose set forth.
Dated this 6th day of July 1894.
ROBERT E. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.