Improvements in Gulley Gratings and the like.
Year: 1890

page_text: Date of Application, 29th Nov., 1890
Complete Specification Left, 31st Aug., 1891-4ccepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Gulley Gratings and the like.
We, FREDERIC GEORGE SISON HAM of 24 Southbrook Road, Lee and
EDWIN JAMES PRESTON of the firm of J. Stone and Company of Deptford both
in the County of Kent, Engineers do hereby declare the nature of this invention to
be as follows:-
The objects of this invention are to render gulley gratings and the like less liable
to choke up with leaves, straw, or other refuse and to enable them to pass off a
greater quantity of water between the bars which is of especial importance in hilly
districts or where heavy rainfalls occur.
For this the bars are so disposed in the frame that the water flow or rush while
cbeing deflected by the bars shall have the tendency to throw the refuse out of its
course. The bars are therefore made to slant in a straight or curved direction
across the frame so that the flow is deflected to one side and the refuse tends to be
carried towards it or the bars may be made to pass at an angle from the middle
back towards each side their point of meeting or angle being rounded, but so that
the flow or stream passes into the said angle and is thereby deflected so that the
refuse tends to be carried towards the sides. The bars are by preference of a
section approaching the letter D but with the side meeting the water made rather
steeper than the off' side.
Dated this 29th day of November 1890.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Gulley Gratings and the like.
We, FREDERIC GEORGE SISON HAM of 24 Southbrook Road, Lee and EDWIN
JAMES PRESTON of the firm of J. Stone and Company of Deptford both in the
County of Kent, Engineers, 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 :-
The objects of this invention are to render gulley gratings and the like less liable
to become choked up with leaves, straw or other refuse and to enable them to pass
off a greater quantity of water between the bars which is of especial importance in
hilly districts or where heavy rainfalls occur.
Referring to the accompanying drawings
Figure represents a gulley grating in plan constructed according to our
invention.
"
Figure 2 is a vertical section thereof on line x, x, Figure 1 and
Figure 3 a sectional view on line y, y Figure 1 and
Figure 4 is a plan view of a modified form of gulley grating.
Figures 5 and 6 are plan views of two other forms. The arrows indicate the
preferred direction of the flow of water.
The bars A of the grate or grating are as shown with reference to Figures 1, 2
and 3 so disposed in the frame that the flow or rush of water while being deflected
by the bars shall have the tendency to throw or wash the refuse out of its course
to the margin or side of the grating. The bars A are for this reason made to slant
in a curved direction across the frame B so that the flow is deflected to one side and
D

page_text: the refuse tends to be carried towards it. Or as shown in Figure 4 the bars A
may be made to pass at an angle in a curved, or it may be straight direction from
the middle back towards each side of the frame A, their point of meeting or angle
being so arranged that the flow or stream passes into the said angle and is thereby
deflected so that the refuse tends to be carried towards the sides. The bars are by
preference of a section approaching the letter D but with the side a meeting the
water made rather steeper than the off side z over which the water flows and with
the under part cut away at as shown more particularly with reference to
Figure 2.
In Figure 5 the bars are made with a double flexure or a modified form of that
shown in Figure 4.
In Figure 6 the bars are made with a uniform curve slanting to each side.
• Having now particularly described and ascertained the nature of our said inven
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
In gulley gratings the application of bars slauting to one or both sides in the
manner described for the purpose of deflecting the flow of water to one or both
sides.
Dated this 31st day of Auc 1901
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.