IMPROVEMENT IN 'GULLIES' FOR STREET SEWERS AND DRAINS GENERALLY
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by George Schofield at the Office of tho
Commissioners of Patents on the 25th January 1877
GEORGE SCHOFIELD, of Elland, in the County of York, Ironfounder
IMPROVEMENT IN 'GULLIES' FOR STREET SEWERS AND DRAINS GENERALLY
"
33
• AN
This Invention relates more particularly to a further improvement upon Inventions
for which Letters Patent have been granted to David Alexander, bearing date the
Thud day of November 1873, No 3576, and to Hartley Wilson, bearing date the
Thuteenth day January 1876, No 141, and has for its object a more effectual
trapping" of sewers and diains than has been accomplished by the "gullies"
heretofore employed One great objection to such "gullies" has been the entire
absence of means whereby the noxious gases or vapours are prevented from arising
out of the drain or sewer into the atmosphere, at such time as when the "gullies
are emptied of water from any cause, and in summer time (when the sewers smell
most) the "gullies" are left empty after cleaning out, and so the gas and vapour
escapes until water has run into them to the level of the arm, elbow, or place
where they are supposed to "trap" or confine the gases within the sewers Now by
the use of my improved "gully" this objection is overcome
The feature of novelty of my Invention consists in the application of a "trap"
oi valve placed in any convenient position (but by preference at or near to the
onfice) of a pipe of the "gully" which communicates with the branch pipes of the
sewer or drain, and which pipe is fixed in a somewhat similar position to the one
which in the former Specification above referred to is marked on the Drawings
with the letter B, and in the latter Specification referred to, the one marked on the
Drawings with the letter C, both of which arrangements of the pipes on the "gully"
provide facilities for cleaning out the branch pipes without the necessity of breaking
up a portion of the street or road, the aforesaid 'trap" or valve I hinge or hang
in any suitable manner, by preference by means of copper pins or studs as axes
which hang upon other copper pins fastened in the aforesaid pipe in any convenient
way I prefer copper because of its non-corrosive properties and its pliability, the
pins which are fastened in the pipe can be easily bent, so as to allow the "trap"
or valve to be removed if required I secure lead or other substance or material on
to the face of the "trap" or valve, so that a good "bedding" surface is produced,
thereby causing a perfect "trap" or stoppage of the gases from the sewers or drains
Ponce 1
JJ

page_text: coming into the atmosphere, whether the "gully" be empty or the heretofore
required quantity of water be in it to cause it to "trap."
As in the case of the Specifications referred to the branch pipes can be readily
cleaned out, the "trap" or valve opening on the insertion of a rod or other appliance
used for cleaning out the said pipes.
This construction of "gully" is especially applicable to the system known as
"Stott's Patent for ventilating sewers," inasmuch as that the "trap" or valve will
by the suction of an in the drains caused by the above system when in operation
open and allow the fresh au into the sewer, whilst on the other hand when the
apparatus is inoperative the "trap" oi valve closes by its own gravity, and will not
allow the escape of the gases from the sewer The "trap" or valve is self-acting,
and operates at all times when water is required to flow into the sewers or chains,
it is simple in its action, and is as lasting as the " 'gully
"3
The "gullies" may be made of non, earthenware, or any other suitable material.