Improvements in Gully Traps.
Year: 1893

page_text: Date of Application, 12th July, 1893
Complete Specification Left, 9th Feb., 1894-Accepted, 17th Mar., 1804
PROVISIONAL SPECIFICATION.
Improvements in Gully Traps.
I, GEORGE HENRY CROKER, of 18, Bellevue Road, Seacombe, in the County
of Chester, Wood Carver, do hereby declare the nature of this invention to be as
follows:
This invention has reference to gully traps, but more especially to those traps
called "Lift-out" traps, wherein the trapping part or parts is or are adapted to be
removed, whenever required, by hand, thereby enabling the gully to be ridded of
all sediment and solid matters deposited in it.
According to this invention, I provide a means or device in connection with the
gully, or outlet thereof by which, when the trapping part is removed when access
may be had to the body for cleaning same or other purpose, the drain or sewer
gases are prevented from escaping.
In one form of this means or device, it may consist of a cap, adapted to fit over
the outlet and dip into the liquid to form a seal; and in some cases this cap has a
grid, or bars, extending downwards-say to the bottom, or horizontally to the
outlet, or inclined. Within this cap the lip of the outlet comes, and on this a grid
may be employed to intercept any solid matters which may reach this point.
The lift-out or removable part fits into the shell or containing vessel of the gully
and also has a cap fitting over the outlet and forming a seal round it; it also fits
over the gas cap or cover above specified.
This invention is applicable to different kinds of gully traps, whether of
rectangular, round, oval, or other form.
•
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Gully Traps.
I, GEORGE HENRY CROKER, of 18, Bellevue Road, Seacombe, in the County
of Chester, Carver, 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 has reference to gully traps, but more especially to those traps
called "Lift-out traps" wherein the trapping part or parts is or are adapted, to be
removed whenever required, by hand, thereby enabling the gully to be ridded of
all sediment and solid matters disposed in it.
According to this invention I provide a means or device in connection with the
gully or outlet thereof by which when the trapping part is removed, by which
access may be had to the body for cleaning same or other purpose, the drain or
sewer gases are prevented from escaping.
In one form of this means or device it may consist of a cap adapted to fit over
the outlet and dip into the liquid to form a seal; and in some cases this cap has a
grid or bars extending downwards say to bottom-or horizontally to the outlet, or
inclined. Within this cap the lip of the outlet comes and on this a grid may be
employed to intercept any solid matters which may reach this point.
The lift out or removable part fits into the shell or containing vessel of the gully
and also has a cap fitting over the metal and forming a seat round it; it also fits
over the gas cap or cover above specified.

page_text: This invention is applicable to different kinds of gully traps whether of
rectangular, round, oval, or other form.
In the drawings,
Figure 1 is a sectional elevation and Figure 2 is an end view in section shewing
a lift-out trapped gully according to this invention; whilst
Figures 3 and 4 are sectional elevation and end view in section shewing a
modified construction of the gully shewn in Figures 1 and 2.
In the different views, the same letters and figures of reference are used to
denote the same or equivalent parts wherever they occur.
Referring to the drawings, a designates generally the body of the gully; b is the
outlet pipe thereof consisting of a vertical part forming the entrance thereto, and a
horizontal part, to the latter of which the drain for conveying away the liquids
from the gully is connected. c is the upper main inlet grid of the gully consisting
of an ordinary rim or frame all round same with lateral bars, the rim of which fits
in the socket a¹ at the top of the body a. d is a sealing cap connected with and
cast on, or forming one with, the socket a' by the webs ; the cup fits over the
mouth of the pipe band its lower edges dip into the liquid in the body a to the
required depth to form the seal. The level of liquid is of course governed by
the level of the lip of the vertical part of the outlet pipe b. e is a second loose
sealing cap, fitting over the vertical mouth of the pipe b inside the cap d, said cap
being a loose fitting, and may rest on the lip of the pipe b by a strainer or gridded
plate e, as shewn in Figures 1 and 2; or on the bottom of the body a by legs or
bars e, which may also serve as a grid or strainer, as in Figures 3 and 4. The
cap e dips into the liquid in the body a in the same way as the cup d, forming a
seal between the pipe b and the space within the cap d.
The object of the sealing cap e is, that when the grid c, and with it the sealing
cap d, are removed, when it is desired to clean out the gully, sewer gas is prevented
from escaping from the pipe b and the drains connected with it.
In the modification shewn in Figures 3 and 4, the sealing cap is dispensed with,
and the cap e serves as the sole means of trapping the sewer gas and "sealing" the
gully. In this case a loose strainer or grid e', fitting on the entrance of the pipe b
is provided, in addition to the bars e², which support the cap e.
In this latter case
in lieu of the bars e² being used, a gridded plate or strainer e¹ of the type shewn in
Figures 1 and 2, may be used; in which case all light matters, such as straws,
chips, etcetera, are prevented from entering the pipe b, first by the outer part of the
grid plate e', in passing into the cap e, or if they escape through it, by the central
part of the grid or strainer over the entrance of the pipe b.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination in a "Lift-out trapped gully "of a body a, an outlet pipe b
therein having a vertical entrance thereto, an upper inlet grid c, a cap d, and a
cap e, by which the entrance or mouth of said pipe b is sealed or trapped, and
prevention of escape of sewer gas effected, substantially as set forth and shown in
the drawings.
2. The combination in a "Lift-out trapped gully" of a body a, an outlet pipe b
therein having a vertical entrance thereto, an upper inlet grid c, a cape by which
the entrance of said pipe b is sealed or trapped and the prevention of the escape of
sewer gases effected, and a strainer e¹ over the inlet of said outlet pipe 6; sub-
stantially as set forth and shown in the drawings.
Dated this 8th day of February 1901
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.