Improvements in Drain Pots or Traps.
Year: 1892

page_text: Date of Application, 25th Jan., 1892-Accepted, 27th Feb., 1892
COMPLETE SPECIFICATION.
Improvements in Drain Pots or Traps.
I, GEORGE MUMFORD, of 143 Albany Street, Regents Park, in the County of
Middlesex, Pattern Maker, 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 said invention relates to improvements in drain pots or traps and has for its
object to obtain a simple and inexpensive form of pot requiring little or no fitting
which will give free access to the drain pipe from the inside of the pot and will
accommodate any depth of gutter connecting with the pot from one or several
directions.
For this purpose, I form the pot or trap of cast iron or earthenware or other
suitable material and at the upper part I form a shoulder to receive a moveable
grating and form a second shoulder at the upper part of the pot I support a
depending basket into which the drainage water flows and I form several
perforations in the bottom of this basket to allow the water to pass through to the
trap which is arranged beneath as hereinafter described and in case the perforations
at the bottom of the basket, which is intended to arrest the sludge, should become
choked, I provide near the upper part thereof other or relief perforations trhough
which the drainage water would overflow and find its way to the trap the basket
being formed of smaller diameter than the pot in order to leave an annular space
around the same for this purpose.
I form the bottom of the pot with a downwardly projecting flange or with feet
which rest upon the ground or other foundation when not set for use and I provide
a space beneath the pot for the short length of pipe which connects with the drain
and which passes through an opening in the flange or between the legs.
The inner end of this short length of pipe rises vertically through the bottom of
the pot a short distance in the form of a ring and constitutes a portion of the trap
and the other portion of the trap is formed by a cap or bell which overlaps and
descends below the upper part of the ring and is of such dimensions as to leave
the necessary annular space around the ring for the flow of the drainage water
over and into the ring and away by the drain pipe and this cap is formed with feet
which support it loosely upon the bottom of the pot in such manner that it can be
easily removed for the purpose of giving access to the drain pipe which is then
completely exposed.
In lieu of forming a separate cap or bell to act in conjunction with the ring or
trap, 1 sometimes form a ring of larger diameter upon the bottom of the basket so
as to overlap the smaller ring and constitute the trap, and in this case, I arrange
the perforations in the bottom of the basket upon the outside of the larger
ring.
In some cases, I dispense with the basket and form supports upon the pot to
receive a grating loosely mounted thereon.
And in order that the said invention may be more clearly understood and readily
carried into effect I will proceed aided by the accompanying drawings more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1. is a vertical transverse section of a drain pot or trap constructed
according to my invention and showing the employment of a short length of
curved pipe to connect with the drain.
יגד

page_text: Figure 3. is a similar view to Figure 1. but showing the drain connection formed
of a short length of straight pipe.
Figure 4. is a similar view to Figure 1. illustrating a slight modification and
Figure 5. is a similar view to Figure 4. but taken at right angles thereto.
Figure 6. is a similar view to Figure 4. but showing the employment of a short
pipe for the drain connection.
Figure 7. is a similar view to Figure 1. illustrating a further modification.
Figure 8. is a similar view to Figure 7. but taken at right angles thereto and
Figure 9. is a plan which applies to all the figures.
In the several figures, like parts are indicated by similar letters of reference.
Referring to Figures 1 and 2 a. represents the body of the pot or trap which is
formed at its upper part with a shoulder or seat a' to receive a moveable grating b.
which is formed with a number of openings or perforatious 6' therein and a
represents a second shoulder which supports a loose depending basket c. into which
the drainage water flows from the grating b.
The basket c. is formed with a flange or rim c' around its upper edge to rest
upon the shoulder a and it is at its bottom provided with a number of
perforations to allow the drainage water to pass through to the trap which is
arranged beneath the basket c. as hereinafter more fully described and in case the
perforations at the bottom of the basket c. which is intended to arrest. the sludge,
should become choked, near the upper part thereof are formed other or relief
perforations or openings through which the drainage water will overflow and
find its way to the trap through the annular space left between the pot a. and the
basket c. the basket c. being formed of considerably smaller diameter than the pot a.
for this purpose.
The bottom as of the pot a. is formed with a downwardly projecting flange or
with feet at which, when the drain pot or trap is not set for use, rest upon the
ground or other foundation and provide a space beneath the pot a. for the short
length of pipe e. which connects with the drain and which passes through an
opening a* in the flange a' or between the legs.
The inner end of the short length of pipe, which short length in this example is
of a curved form, rises vertically through the bottom as of the pot a a
short distance in the form of a wall or ring e¹ and constitutes a portion of
the trap and the other portion of the trap is formed by a cap or bell d. which
overlaps and descends below the upper part of the ring e¹ and is of such dimensions
as to leave the necessary annular space around the ring e¹ for the flow of the
drainage water over and into the ring el and away by the short length of pipe e.
to the drain and the cap or bell d. is formed with feet d' which support it loosely
upon the bottom a³ of the drain pot a. in such manner that it can be easily removed
for the purpose of giving access to the short length e. of the drain pipe which is
then completely exposed and therefore easy of access.
In the example represented at Figure 3. the parts are similar to those hereinbefore
described with the exception that the flange or legs a' are dispensed with and the
lower end of the straight short length e. of drain pipe, which is employed in lieu
of the curved short length herein before described in order to connect with the
drain, rests upon the ground or other foundation when the drain pot or trap is not
set for use.
In the example given at Figures 4 and 5. in lieu of forming a separate cap or
bell d. to act in conjunction with the ring or trap e¹ a downwardly projecting
ring d. of larger diameter than the ring e' is formed upon the bottom of the
basket c. so as to overlap the smaller ring e and thus constitute the trap and in
this case the perforations in the bottom of the basket c. are arranged exteriorally
of the downwardly projecting ring d.
In the example given at Figure 6 the arrangement of parts is similar to that
herein before described with the exception that in lieu of employing a curved short
length of connecting pipe a straight length is employed and the flange at or legs

page_text: upon the bottom of the pot a. are dispensed with as explained with respect to
Figure 3.
In the example given at Figure 7. the basket c. is dispensed with and a
grating c. is employed which is loosely mounted upon ribs or supports a³ formed
upon the interior of the body a. of the pot.
In the example given at Figure 8. the parts are similar to the described with
respect to Figure 7. except that a straight short length of connecting pipe is
employed in lieu of the curved short length shown at Figure 7.
By these means, I obtain a simple and inexpensive form of drain pot or trap
which is easy to manufacture, the parts of which are easily replaced in case of
breakage, requires little or no fitting and which will give free access to the drain
pipe from the inside of the pot and will accommodate any depth of gutter
connecting with the pot from one or several directions.
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. In a drain pot or trap, the combination of a body a., formed with a seat a¹
for a loose grating b., a short length of connecting pipe e. e rising centrally
through the bottom of the pot and fixed therewith and a loose bell or cover d.
acting in conjunction with the part e' to form a trap, substantially as herein shown
and described.
2. In a drain pot or trap the combination of a body a., formed with a seat a¹
for a loose grating b., a short length of connecting pipe e. e¹ rising centrally
through the bottom of the pot and fixed therewith, a loose bell or cover d. formed
separately or upon a basket or grating c. and acting in conjunction with the part e¹
to form a trap and a loose basket or grating c. arranged within the body a,
substantially as herein shown and described.
Dated this 25th day of January 1892.
VAUGHAN & SON,
Agents for the Applicant.