IMPROVEMENTS IN TRAPPED QULLIES OR GRATINGS FOR STABLES AND OTHER PURPOSES
Year: 1880

page_text: LETTERS PATENT to Charles William Burge, of No. 39, Marylebone Road, in
the County of Middlesex, Builder, for an Invention of "IMPROVEMENTS IN
TRAPPED QULLIES OR GRATINGS FOR STABLES AND OTHER PURPOSES."
PROVISIONAL SPECIFICATION left by the said Charles William Burge at
the Office of the Commissioners of Patents on the 16th July 1880.
CHARLES WILLIAM BURGE, of No. 39, Marylebone Road, in the County of
Middlesex, Builder. "IMPROVEMENTS IN TRAPPED GULLIES OR GRATINGS FOR
STABLES AND OTHER PURPOSES."
This Invention consists of an improved arrangement and construction of trapped
gullies or gratings so as to admit of the easy access to the drain or cesspit beneath,
and also having a perfect and sound water seal against sewer gases. My improved
gulley may be composed of iron, earthenware, or other suitable material. It
consists of three parts, viz., the outer case, the perforated cover or grid, and the
trap which contains the water seal.
The outer case has a rebate round the top edge which receives the grid in the
usual way, and round the bottom edge of my improved gulley I form a deeply
recessed groove to contain water, leaving a clear and open way right through the
outer case; an area at bottom is left equal to that at top all but about two
inches, so that if the size at top were twelve inches by twelve inches, it would be
at the bottom about ten inches by ten inches.
The trap has a ring formed on its outer edge exactly corresponding in size and
shape to the recessed groove above described, so that when in its place it forms a
perfect water joint, and at the same time is movable at pleasure for the purpose of
access to the drain or cesspit beneath for any desired purpose.
It is a well known fact that stable drains are liable to choke by the accumulation
of stable or other refuse, which, with the ordinary traps now in use, would
necessitate the removal of the body of the trap and also disturb the surrounding
paving to get at the drain. To obviate this I construct my improved gulley so that
the trap can be easily removed, thereby leaving the space the trap occupies open.
My improvement may also be applied to street gullies, house traps, and other
similar purposes

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles William Burgo in the Great Seal Patent Office on the 15th
January 1881.
CHARLES WILLIAM BURGE, of No. 39, Marylebone Road, in the County of
Middlesex, Builder. "IMPROVEMENTS IN TRAPPED GULLIES OR GRATINGS FOR
STABLE AND OTHER PURPOSES."
This Invention consists of an improved arrangement and construction of trapped
gullies or gratings for stable, domestic, or other purposes.
The object of this Invention is to provide means whereby easy access may be
obtained to the drain or cesspit beneath the trap, which is of peculiar construction,
and is so formed that it may be lifted out for cleansing or other purposes, and the
interior of the drain or cesspit exposed, and at the same time it forms when in
place a sound and perfect water seal against sewer gases.
My improved gulley may be composed of iron, earthenware, or other suitable
material, and consists of three parts, viz.:―
The outer case, the perforated cover or grid, and the trap containing the water
seal
To more fully describe my improvement, reference is made to the accompanying
Drawings and letters of reference marked thereon.
Fig. 1 is a sectional view of my improvement, and
Fig. 2 is a plan of the internal movable trap.
As before stated my improved trap is of peculiar construction, as will be seen on
reference to the Drawings.
A is the outer caso, having a rabbet B around the top edge to receive the grid
or cover as is usual in traps or gullies. At the bottom edge of the outer case A
I form a deeply recessed groove D to receive a tongue E formed round the lower
edge of the trap E. This tongue E corresponds in size and shape with the
groove D in the outer case A into which it fits, and at the same time the entire
trap is removable at pleasure for access to the drain beneath for any desired
purpose. At the top edge of the trap F I form a rim or bead G which is shaped
so as to leave a spaco a between it and the outer case A; this space when the
trap is in use becomes fitted with sediment, and thus a perfectly air tight joint
is formed all round the outer case A independently of the water contained in the
groove D. This bead or rim also supports a strainer H which is generally used in
traps or gullies for stable purposes, and which I form with a convex upper face
which assists in throwing the sediment to the sides of the trap. J is a key way
for lifting the grid or cover C; K, K, are the usual perforations in said grid.
Should the cesspit become choked by the accumulation of stable refuse or other
substance, all that is required is to lift out the trap F when an "open way" will
present itself, with ample room for cleansing the cesspit or any other required
purpose, while in the ordinary traps now in use it would be necessary to remove
the entire body of the trap, and almost invariably the surrounding paving also, in
which case should the paving be of asphate, or other similar substance, it would
cause much expense and labour, while with my improved trap all this trouble is
obviated. When the trap is removed it leaves a clear and open way through the
outer case, of an area equal to that at top all but about two inches each way, so
that if the size at top were twelve inches by twelve inches it would leave an
open way" of about ten inches by ten inches. The trap also possesses a much
larger water way than is usual, and the curved form of the bottom of the trap
materially assists in causing it to flush itself clear of accumulation of sediment.
Having now described the nature of my said Invention and manner of con-
structing same, what I claim as new and desire to secure by Letters Patent is,-
1st. The construction of a trapped gulley applicablo to purposes of surface
65

page_text: drainage which affords a perfect seal against sewer gases, and at the same time
also admits of easy access to the drain or cesspit beneath for cleansing or other
purposes without disturbing the body of the trap itself or the paving surrounding
same, substantially as herein before described and set forth.
2nd. The construction of the water joint around the movable trap, which, with
tho addition of the rim or bead G, materially assists in securing a perfectly air
tight joint independently of the water contained in the water groove itself, as
herein described.
3rd. The peculiar shape of the trap itself as possessing an extra large water
way, owing to the curved bottom of same it gives a tendency to flush itself
clear of all matters deposited by the sewage in its passage down through the trap,
substantially as hereinbefore described.
In witness whereof, I, the said Charles William Burge, have hereunto set
my hand and seal, this Tenth day of January, in the year of our Lord
1881.
CHARLES WILLIAM BURGE. (LS.)