Improvements in or relating to Street Gulley and like Gratings and Appliances connected therewith.
Year: 1898

page_text: PROVISIONAL SPECIFICATIVA.
Improvements in or relating to Street Gulley and like Gratings and
Appliances connected therewith.
We, FREDERICK GEORGE SISON HAM, WILLIAM EDWARD BAKER, and CLAUDE
MORRIS SANSOм, all of 13, Grosvenor Road, Westminster, County of London,
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention has for object, certain detail improvements in or relating to
street gulley and like gratings and appliances connected therewith.
To carry our invention into practice, we hang or pivot the gulley grating
nearer the centre of the box like frame in which it is fitted in order that a clear
water way is provided between the grating proper and, say, the kerb, or such
water way may be arranged partly under the kerb and out of the direct flow of
water in the channelling, down or along which the stones and grit from the
roadway are carried by the rush of rain water and which invariably clogs the
grating and allows a pool to be formed which our invention obviates.
In combination with the above construction of gulley grating and box frame
which may be in the form of a catch pit of metal or pottery ware, we arrange
chocks or supports in the framing or box for the reception of a deflector
plate, which diverts grit and debris passing through the grating into a parti-
tioned chamber as a kind of intercepting trap from which the material can be
readily removed and so save the drain pipes becoming choked.
The other chamber of the catch pit is provided with a bell like apparatus
within which is a stand up pipe with the lower end projecting from below the
catch pit and into the mouth of the drain pipe, so that solid material becomes
stopped by this siphon arrangement and nothing but water flows away, the bell
being always sufficiently submerged to prevent escape of effluvia up the gulley.
The back upper part of the box or frame may be extended to form this free
water entry, such as in the casting if of metal, or of moulding if in stoneware
as found desirable.
The deflecting plate is over the part of the catch pit where the siphon bell is
arranged and is readily removable after the gulley grating is folded up on its
pivot pins to facilitate the removal of the bell, this having a bow handle or
knob at the top for that purpose.
Our improved hanging of a gulley grating with its carrier framing is appli-
cable to gulley traps or road manholes of any kind, whether the catch pit be
present or not.

page_text: Improvements in or relating to Street Gulley and like Gratings and
Appliances connected therewith.
We, FREDERICK GEORGE SISON HAM, WILLIAM EDWARD BAKER, and CLAUDE
MORRIS SANSOM, all of 13, Grosvenor Road, Westminster, County of London,
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:-
This invention has for object, certain detail improvements in or relating to
street gulley and like gratings and appliances connected therewith.
To carry our invention into practice, we hang or pivot the gulley grating nearer
the centre of the box like frame in which it is fitted in order that a clear
water way is provided between the grating proper and, say, the kerb, or such water
way may be arranged partly under the kerb and out of the direct flow of water
in the channelling, down or along which the stones and grit from the roadway
are carried by the rush of rain water and which invariably clogs the grating
and allows a pool to be formed which our invention obviates.
we
In combination with the above construction of gulley grating and box frame
which may be in the form of a catch pit of metal or earthen or stone ware,
arrange chocks or supports in the framing or box for the reception of a deflector
plate, which diverts grit and debris passing through the grating into a parti-
tioned chamber as a kind of intercepting trap from which the material can be
readily removed and so save the drain pipes becoming choked.
The other chamber of the catch pit is provided with a bell like apparatus
within which is a stand up pipe with the lower end projecting from below the
catch pit and into the mouth of the drain pipe, so that solid material becomes
stopped by this siphon arrangement and nothing but water flows away, the bell
being always sufficiently submerged to prevent escape of effluvia up the gulley.
The back upper part of the box or frame may be extended to form this free
water entry, such as in the casting, if of metal, or of moulding if in stoneware
as found desirable.
The deflecting plate is over the part of the catch pit where the siphon bell is
arranged and is readily removable after the gulley grating is folded up on its
pivot pins to facilitate the removal of the bell, this having a bow handle or
knob at the top for that purpose.
Our improved hanging of a gulley grating with its carrier framing is appli-
cable to gulley traps of any kind, whether the catch pit be present or not.
Our invention will be clearly understood by reference to the annexed drawings.
Figure 1 perspective elevation of an ordinary form of gulley grating with our
forwardly hinged improvement indicated therein, and with its frame such as
would be ready for setting in position in a road channel.
Figure 2 perspective elevation of our improved grating as applied and fixed
over a brick catch pit next the kerbing of a pathway."
Figure 3 sectional elevation of a metal catch pit or box in which our improved
gulley grating can be arranged as further represented in the right angled
perspective sectional elevation at Figure 4, this catch pit having a partition and
deflecting plate by which the water passing through the gulley grating and
through the back opening falls into one chamber with rough debris and pebble
stones, and from which the water overflows the partition into a second chamber
provided with a bell trap and siphon pipe before discharge into the drain or sewer.
This is further represented on a larger scale at Figure 5 in transverse sectional
elevation where the method of supporting the deflector plate is shown, so that

page_text: it and the bell trap can be lifted out of the catch pit when the accumulated
debris has to be removed from such metal catch pit.
Figure 6 represents our improved hinged gulley grating lodged on the flanged
head of a stoneware catch pit or pipe with a set off at the back of the head
for free passage of water flowing over the back edge of the gulley grating into
the same, said stoneware catch pit having its outlet some distance above the
bottom with end for ordinary drain or sewer pipe connection in the well known
manner.
A, gulley grating hinged or pivotted at B in advance of the back of the
frame C. D, the clear or uninterrupted passage for water behind the grating
and out of the straight line of the usual rush of water down the channelling or
water course E. F, deflector plate resting on lugs G, G, and having a stop H to
prevent it slipping down, and ensuring its location when placed in the catch pit I,
the downflow of water through the grating being by the deflector plate caused
to flow into the chamber I until it overflows the partition K from whence it falls
into the chamber L and under the bell M to rise both inside and outside the
bell to enter the downflow pipe N, which by its flange P and a simple luting
seals the bottom of the second chamber L where the bell acts as a stench trap
to keep back effluvia and sewage gas, the bell having a handle Q by which it
can be lifted for any cause when desired.
In the views Figures 2 and 4, the back clear water way D is represented
perfectly open and just under the edge of the kerb R but a coarse vertical
grating can be fitted at that part if found necessary to keep back straws, leaves, and
other floating debris.
Figures 3, 4 and 5 show the catch pit I as of metal, but if of stoneware, as at
Figure 6, we make a set back shoulder S in the head of the stoneware catch
pit for the free passage of water from behind the grating A, its flange serving
to rest the grating frame Con. The stoneware catch pit A, or it may be of
metal, has a side mouth U for attachment of an ordinary stoneware drain pipe
in the well known manner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed. we declare that
what we claim is:--
1. Affixing by pivots B, a gulley grating A at a distance from the back of
the frame C as to leave a clearance between said grating A and the frame C, as
and for the purpose set forth and as shown on the annexed drawings.
2. In combination with a gulley grating A and open space 1 between its
back and the frame C, the partitioned catch pit I with removable deflector plate F
and bell also removable for the purpose or purposes described and substantially
as represented on the annexed drawings.
3. In combination with a gulley grating A pivotted as shown and having a
clear waterway between it and its frame C, the set off shoulder of a stoneware
or metal catch pit in communication with such clear space 1), as described with
reference to Figure 5 of the annexed drawings.
111
11
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frederick George Sison Ham,
William Edward Baker, and Claude Morris Sansom.