Improvements in Traps for Sinks and the like.
Year: 1896

page_text: Date of Application, 6th Nov., 1696-Accepted, 9th Jan., 1897.
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COMPLETE SPECIFICATION.
Improvements in Traps for Sinks and the like.
I, OMER LA RUE, residing at Woodstock Avenue, in the City of Putnam, in
the County of Windham and State of Connecticut, United States of America,
Physician and Surgeon, 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 traps for sinks, bath tubs, water closets, and similar
purposes, and the object thereof, is to provide traps of this class with means for
cleaning the drainage pipe, which extends from the trap to the main sewer, and in
a measure to prevent the clogging thereof; a further object being to provide a
trap of this class with a valve, which is situated below the vent, and which may be
closed whenever desired so as to cut off the communication with the drainage pipe
which leads to the sewer, so as to prevent the back flow of noxious gases, and also
to prevent the back flow of water when the drainage pipe is being cleaned, and
whereby when the sink, bath tub, or closet is not in use, the drainage pipe may be
closed; a further object being to provide a trap of the class specified, which may be
cleaned at any time by reason of a detachable bottom, and a detachable top, with
which it is provided; and with those and other objects in view, the invention
consists in the construction, combination and arrangement of parts hereinafter
described and claimed.
The invention is fully disclosed in the following specification, of which the
accompanying drawing forms a part, in which :-
Fig. 1, is a central vertical section of my improved trap and its connections;
Fig. 2, a transverse section on the line 2, 2, of Fig. 1;
Fig. 3, a central section of a modified form of construction; and,
Fig. 4, a similar section of another modification.
In the practice of my invention, I provide a trap, which comprises a cylindrical
casing 5, having a detachable bottom 6; and a removable cap 7, and I also
provide an induction pipe 8, which communicates with the lower end of the
casing 5, and an escape or drainage pipe 9, which communicates with said
casing near the upper end thereof, and the removable cap 7, is provided with
a central circular opening 10, which is provided with a tubular extension with
which a vent tube 11, is connected by means of a coupling band or sleeve 12.
The escape or drainage pipe 9, is curved downwardly so as to form an
elbow 13, and said elbow is provided with an upwardly directed tubular
extension 14, which is normally closed, by a removable plug 15, and the com-
munication between the casing 5, of the trap, and the drainage pipe 9, is
controlled by a sliding valve 16, which is provided at its lower end with a
shoulder 17, through which passes a screw threaded rod 18, which passes through
the detachable bottom of the trap, and is provided with a handle 19.
a
The detachable bottom 6, of the casing 5, is provided with a circular
chair.ber 20, through which the valve rod 18, passes, and mounted on said
valve rod 18, is a collar 21, which is rigidly secured to said rod, and said rod.
and collar are held in place by plug 22, which is screwed into the screw.
threaded walls of the chamber 20, and it will be understood that by turning,
the handle 19, the valve 16, may be raised or lowered and. made to close.or
open the communication between the casing. 5, of the trap and the drainage
pipe 9.
The connection of the valve 16, with the side of the casing, is what is

page_text: known as a tongue and groove connection as shown in Fig. 2, and the inwardly
directed flanges 23, which hold the valve in place as shown in Fig. 2, may be
formed on the side of the casing, or they may be formed separately and bolted
thereto.
It will be apparent that the bottom 6, of the trap casing 5, may be removed
whenever desired for cleaning purposes, though this, as will be apparent will
be seldom if ever necessary, and whenever desirable, communication between the
casing 5, of the trap and the drainage pipe 9, may be cut off by the valve 16,
and the advantages of this arrangement will be apparent by all those familiar
with this class of devices, and by reason thereof, when the traps are not in use;
the back flow of gases through the drainage pipe may be prevented, as may
also the back flow of water and the object of providing the tubular extension 14,
and the detachable plug 15, by which it is closed is to provide means whereby
a pipe may be connected with the drainage pipe for the purpose of flushing or
cleaning the latter whenever necessary, and when this is done, the valve 16,
may be operated to close the communication with the trap casing.
In Fig. 3, I have shown a longitudinal vertical section of an elbow ben1 or
trap similar to those used in water closets, and other places, which is also
provided with my improvement, and in this form of construction, the elbow 24,
is provided with a screw threaded sleeve or band 25, by means of which the
drainage pipe 26, is connected therewith, and said band or sleeve 25, is provided
on its upper side with a vertical tubular extension 27, in which the valve 16,
is mounted, and in this case, the valve rod 18, passes through the shoulder 17,
formed on the valve, and the position of the valve is inverted, and the operation
thereof, in closing the communication between the elbow 24, and the drainage
pipe 26, will be apparent, this operation being substantially the same as that
herein before described; and in this construction, I also employ the upwardly
directed tubular extension 14, which is formed on or secured to the drainage
pipe 26, and which is adapted to be used for the purposes of flushing or cleaning
said drainage pipe as hereinbefore described, and in this case I also connect with
the drainage pipe or elbow, a vent pipe 4, provided with my improved valve at 3,
or any desired form of valve and the pipe 4, leads to a flue or to the outside of the
building.
In Fig. 4, I have shown another modification which consists of a trap casing 5,
similar to that shown in Fig. 1, adapted for use beneath a floor, and in this case,
the trap casing is provided at one side and near the upper end thereof, with an
outwardly directed tubular extension 28, between which is a depending casing 29,
in which the valve 16 is mounted, and in this construction the valve rod 18, passes
upwardly through the tubular extension 28, and is operated to close the com-
munication between the trap casing and the escape pipe 26 in the same manner as
herein before described.
The escape pipe 26, as shown in said figure is connected with the tubular
extension 28, of the casing 5, by means of a short tube 30, and a collar or tube 31,
and said escape pipe is also provided with means for cleaning the same, consisting
of the tubular extension 14, on the upper side thereof, and the operation of this
form of construction will be readily understood from the accompanying drawing and
the description thereof, when taken in connection with the description of the
operation of the construction shown in Figs. 1, and 2.
It will be understood that the removable top or cover 7, shown in this figure
may be perforated in the usual manner, and it is evident that other changes in, and
modifications of my improved trap may be made without departing from the spirit
of my invention or sacrificing its advantages..
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
1. A trap, consisting of a casing, provided with a drainage pipe, and a sliding

page_text: valve, which is adapted to close the communication between said casing, and said
pipe and said drainage pipe being provided with means for flushing or cleaning the
same, substantially as shown and described.
2. A trap, consisting of a casing, provided with a drainage pipe, and a sliding
valve, which is adapted to close the communication between said casing, and said
pipe, and said drainage pipe being provided with means for flushing or cleaning
the same, and said sliding valve being operated by a screw threaded rod,.
substantially as shown and described.
3. A trap, consisting of a casing, provided with a drainage pipe, and a sliding
valve, which is adapted to close the communication between said casing, and said
pipe, and said drainage pipe being provided with means for flushing or cleaning
the same, and said sliding valve being operated by a screw threaded rod, and the
trap being also provided with a vent above the point where the drainage pipe
communicates therewith, substantially as shown and described.
4. A trap of the class herein described, consisting of a cylindrical casing, having
a removable top and bottom, a vent tube detachably connected with the top, an
escape pipe connected with the side thereof below the top, and a sliding valve-
operated by a screw threaded rod, which passes through the detachable bottom,
and which is adapted to close the communication with the escape pipe, substantially
as shown and described.
5. A trap of the class herein described, consisting of a cylindrical casing, having
a removable top and bottom, a vent tube detachably connected with the top, an
escape pipe connected with the side thereof, below the top, and a sliding valve
operated by a screw threaded rod, which passes through the detachable bottom,
and which is adapted to close the communication with the escape pipe, said escape
pipe being also provided with a tubular extension, whereby a flushing pipe may
be-
connected therewith, substantially as shown and described.
6. A trap of the class herein described, consisting of a cylindrical casing, having
a removable top and bottom, a vent tube detachably connected with top, an escape
pipe connected with the side thereof, below the top, and a sliding valve operated
by a screw threaded rod, which passes through the detachable botton, and which
is adapted to close the communication with the escape pipe, said escape pipe being
also provided with a tubular extension, whereby a flushing pipe may be connected
therewith, and said casing being also provided with an induction pipe which com-
municates therewith, below the communication of the escape pipe, substantially as
shown and described.
7. A trap of the class herein described, provided with a vent tube, and an escape
pipe, which communicates therewith below the communication with the vent tube,
the communication with the escape pipe being controlled by a valve, which is
adapted to be operated by a screw threaded rod, which passes through the casing
of the trap, substantially as shown aud described.
Doted this 5th day of November 1806
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents...