An Improved Street Gully or Gully Trap for Drains.
Year: 1888

page_text: Date of Application, 4th Dec, 1888
Complete Specification Left, 23rd Apr., 1889-Accepted, 29th June, 1889
PROVISIONAL SPECIFICATION.
An Improved Street Gully or Gully Trap for Drains.
ALBERT GREEN No. 1 Cromwell Street Hounslow Middlesex, Clerk of Works do
hereby declare the nature of this invention to be as follows:-
A Gulley to be made with two compartments, a larger one to catch the water, and
retain the sand, or other solid inatter, and, a smaller one to act as a trap, to prevent
foul air passing through the gulley from the drain. The water after settling in the
catchpit passes off through the smaller division.-the aperture from the larger, and
the outlet from the smaller divisions, are hoth sealed with the water.
The Gully to be made of Cast Iron. The accompanying drawing is a section
showing the principle of the invention.
The water falls into the catchpit A, the sand or other solid matter settles to the.
bottom, and the water fills up to the level of the aperture B, where it flows into the
compartment C, from whence it passes through the outlet D, into the drain.
Over
the compartment C, is a lid E, hung on pivots to open upwards "when the grating
is open" and by which the compartment Ĉ can be examined.
Dated this 30th day of November 1888.
ALBERT GREEN,
1, Cromwell Street, Hounslow, Middlesex.
COMPLETE SPECIFICATION.
An Improved Street Gully or Gully Trap for Drains.
I ALBERT GREEN 1 Cromwell Street Hounslow Clerk of Works 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 invention relates to an improvement in Street Gullies or Gully traps for
drains. The drawing herein referred to is that left with the provisional specification,
and the reference letters are those shown on the drawing.
The Gullies or Gully
traps are to be made of cast iron, to be circular, rectangular, or square on plan, and
to be made in all sizes from the smallest, drain trap, to the largest size Street Gully.
The efficiency of this Gully or trap is effected in three ways (a) By retaining the
solid matter so that it does not pass into the drain.
For this purpose the receiver or compartment marked A on the drawing is made.
of sufficient depth to allow the sand or other solid matter to settle, by the water
having to rise to the aperture B to pass away (b) By being double trapped and thus
preventing foul air passing through the gully from the drain, and to effect this the
Sinaller compartment C with the outlet D retains sufficient water to seal the outlet,
and which remains sealed at all times, the second seal or trap is caused by the
bottom portion of the lid E being fixed below the level where the water passes away
at B. (c) And by the whole superficial capacity of the gully being utilized for inter-
cepting the surface water, and this is effected by the slanting lid E being fixed
underneath the grating, which allows the latter to be of the full size of the superficial
area of the gully. This lid is hung on pivots to open upwards" when the grating is
open," whereby the compartment C can be readily examined.
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 1
alaim is

page_text: 2nd. For the position of the same making the gully or trap more effective.
3rd. The whole interior of the gully or trap, can be readily examined and easily
cleaned out.
ALBERT GREEN.