IMPROVEMENTS IN DRAIN TRAPS
Year: 1884

page_text: I, WILLIAM HENRY TYLOR of Newgate Street in the City of London, Brass-
founder do hereby declare the nature of my invention for "IMPROVEMENTS IN
DRAIN TRAPS " to be as follows:―
This invention relates to those kinds of drain traps known as disconnector traps
and to traps for separating fat from liquid before the latter passes to the drain
and the said improvements so far as they relate to disconnector traps consist as
follows:-
Heretofore in cases where the trap is situated at a depth below ground it has
been customary to carry up an extension of the ventilating opening to the level of
the ground by means of brickwork, pieces of pottery pipe, or other material in any
way which might happen to be most convenient for each particular case.
Instead
of this somewhat makeshift arrangement I construct these extensions as definite
pieces fitting to the air inlet opening and of various shapes and adapted in various
ways so as to suit various circumstances under which the disconnector trap may be
used, for example the extension piece may be adapted to receive the usual air inlet
grating on its top, or with a socket or other preparation to receive an air inlet pipe
at its side or other position, or it may be adapted to receive the soil pipe direct into
it with or without a grating or other ventilating device. Where it is desired to run
the wastes of baths or sinks into disconnector traps special pieces may be used between
the surface of the ground and such disconnector traps, provided with downwardly
bent pipe. By these arrangements disconnector traps can be connected with the
surface or otherwise ventilated with great facility as the extensions or additional
pieces are adapted to fit into one another so that if one piece is not sufficient two
or more can be combined together to produce the desired effect.
The improvements so far as they relate to traps for separating fat from liquids
consist as follows:-I employ a box with a cover having a luting, or fixed airtight
thereto I place a partition across this box branching right and left or it may be
made in any other way suitable for allowing escape of the liquid on to a separating
plate. The liquid with the fat enters and strikes the separating plate causing the
fat to be broken up into small pieces detached from the liquid and allowing it to
float to the top. The liquid then, in its course towards the outlet, strikes the above-
mentioned partition causing a still further separation of fat.
The outlet for liquid may be near the bottom of the box at the end opposite to
that at which it entered. The fat being retained in the box can be removed at
pleasure after lifting the cover.
W. H. BECK,
Agent for the Applicant,
115, Cannon Street, London.

page_text: I, WILLIAM HENRY TYLOR, of Newgate Street, in the City of London, Brass-
founder do hereby declare the nature of the said invention for "IMPROVEMENTS IN
DRAIN TRAPS" and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement reference being had to
the accompanying sheet of Drawings and to the letters and figures marked thereon,
that is to say :-
This invention relates to those kinds of drain traps known as disconnector traps,
and to traps for separating fat from liquid before the latter passes to the drain,
and the said improvements so far as they relate to disconnector traps consist as
follows:-
Heretofore in cases where the trap is situated at a depth below ground it has
been customary to carry up an extension of the ventilating opening to the level of
the ground by means of brickwork, pieces of pottery pipe, or other material in any
Instead
way which might happen to be most convenient for each particular case.
of this somewhat makeshift arrangement, I construct these extensions as definite
pieces fitting to the air inlet opening, and of various shapes, and adapted in various
ways so as to suit various circumstances under which the disconnector trap may be
used. In the drawings hereto annexed, Figure 1 illustrates an ordinary dis-
connector trup of well known construction, to the socket branch A of which my
beforementioned definite extension pieces may be applied,- Figures 2, 3, 4, 5 and
6 show various forms and arrangements of my said definite extension pieces, and
Figures 7 and 8 show ventilating gratings applicable for use with the said extension
pieces.
Figure 2 shows a plain extension piece, the lower end of which is adapted to be
placed, and (if necessary) cemented, in the socket A of the disconnector trap
(Figure 1) the upper end being provided with a socket or recess B to receive the
usual air inlet grating (Figure 7 or 8) or another similar extension piece, (Figure 3)
above it, according to circumstances. Figure 4 shows a similar extension piece
provided with a socket or other preparation C for an air inlet pipe at its side or
other position. Figure 5 shows a similar extension piece adapted to receive a
leaden soil pipe direct into its socket D at the top. This extension piece may also
be provided with a socket or other preparation C to receive an air inlet pipe or
other ventilating device. Where it is desired to run the wastes of baths or sinks
into disconnector traps, I use special pieces such as that shown at Figure 6,
provided with a downwardly bent pipe E (shown in dotted lines) connected with
the inlet opening F by which the waste enters from the bath or sink, O in this
Figure represents the socket or other preparation for the air inlet pipe as in
Figures 4 and 5. When the soil pipe discharges into an open extension piece the
notched grating, Figure 8, is employed instead of that shown at Figure 7.
By these arrangements disconnector traps can be connected with the surface or
otherwise ventilated with great facility as the extensions or additional pieces are
adapted to fit into one another so that if one piece is not sufficient two or more can
be combined together to produce the desired effect.
The improvements, so far as they relate to traps for separating fat from liquids,
are shown in Figures. 9 and 10 and consist as follows:-A is a box with a cover B
luted or otherwise fixed airtight thereto. C is a partition crossing the box A, and
extending upwards from the bottom to a height about equal to or a little higher
than that of the top of the outlet opening D, and at a convenient distance there-
from. The inlet E to the box is preferably bent downwards inside the box and
+

page_text: made oblong at the lower end as shown in Figure 10, or it may be made with a
T piece allowing escape both upwards and downwards, or branching right and left,
or it may be made in any other way suitable for allowing escape of the liquid on to
a separating plate F. The liquid with the fat enters at E and strikes the separating
plate F causing the fat to be broken up into small pieces, detached from the liquid
and allowing it to float to the top. The liquid then passes under the separator
plate F towards the outlet, and strikes the above mentioned partition C causing a
still further separation of fat which rises to the top of the liquid and the latter
flows over the top of the partition C to the outlet opening D.
This outlet opening D for liquid is preferably placed near the bottom of the box A
at the end opposite to that at which it entered and is trapped or liquid sealed by the
trap G the overflow pipe H from which is placed, as shown, at a somewhat higher
level than the opening D. I is a hand hole for cleaning out the trap G which hand
hole may be closed, when not in use, by the plug J. The fat, being retained floating
on the surface of the liquid in the box A, cannot escape by the opening D, because
the surface of the said liquid is maintained above it by the trap G, and can be
removed at pleasure after lifting the cover B.
The trap may be constructed of any suitable material such as earthenware or cast
iron, and the box, partition, separator plate, and inlet and outlet passages may be
made in one single piece or of several pieces united together in any suitable or
convenient manner, and the box may be of any suitable shape such as round, square,
oblong, and so forth.
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 :-
First In combination with disconnector traps the employment of specially
adapted extension pieces for the purpose of extending the air inlet openings
of such traps up to or above the level of the ground, as herein before described,
and illustrated in Figures 1 to 6 of the Drawings hereto annexed.
Second-The fat separating trap consisting of a covered box provided with an
inlet opening arranged and adapted to project the incoming liquid and fat
on to a separator plate contained in the said box and with an outlet opening
having a partition placed in front thereof, the whole arranged, adapted, and
operating as hereinbefore described, and illustrated in Figures 9 and 10 of
the Drawings hereto annexed.
Dated this 22nd day of November 1884.