Improvements in or relating to Sewer Pipes.
Year: 1894

page_text: Date of Application, 21st Mar., 1894
Complete Specification Left, 21st Dec., 1894-Accepted, 26th Jan., 1895
Improvements in or relating to Sewer Pipes.
I, WILLIAM MORRIS, of 22 Coltbridge Terrace, Murrayfield, Edinburgh, in
the County of Midlothian, North Britain, Contractor, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in or relating to sewer pipes and has for
its object to enable the ordinary street upright ventilating pipe to be readily
inspected; and also to keep the roadway dirt from falling into the said pipe.
Preferably a little below the level of the mouth of the said upright pipe, I lay a
layer of cement and upon the said cement is laid a cast iron box, the top of which
is level with the roadway and is provided with a hinged lid. The bottom of the
box has a central opening into which the mouth of the sewer pipe projects. The
side of the box, at the interior thereof, is formed with a channel and the lid of
the box is provided with corresponding openings or perforations, this arrangement
being such that whilst the ventilation is allowed to take place through the lid of
the box the dirt can only pass into the channels of the box which are outside of
the sewer pipe. A clearance space is left between the sewer pipe and the opening
through the bottom of the box, so that subsidence of the roadway may take place
without affecting or damaging the sewer pipe.
Dated this 20th day of March 1894.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Sewer Pipes.
1, WILLIAM MORRIS, of 22 Coltbridge Terrace Murrayfield, Edinburgh, in
the County of Midlothian, North Britain, Contractor, 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 relates to improvements in or relating to sewer pipes and has for
its object to enable the ordinary street upright ventilating pipe to be readily
inspected; and also to keep the roadway dirt from falling into the said pipe.
Figure 1 is a sectional elevation of a sewer pipe A with cast iron road box B
constructed in accordance with my said invention.
Figure 2 is a half plan of the road box.
A little below the level of the mouth of the upright sewer pipe A, I provide a
layer of cement C, and upon the said cement is laid the cast iron box B, the top
of which is level with the roadway and is provided with a hinged lid B'.
The bottom of the box has a central opening B2 into which the mouth of the
sewer pipe A projects. The side of the box, at the interior thereof, is formed with
a channel B³ and the lid of the box is provided with corresponding openings or
perforations B, this arrangement being such that whilst ventilation is allowed to
take place through the lid of the box the dirt can only pass into the channels of
Poire &dl

page_text: the box which are outside of the sewer pipe. A clearance space D is preferably
left between the sewer pipe and the opening through the bottom of the box, so
that subsidence of the roadway may take place without affecting or damaging the
sewer pipe.
Having now particularly described and ascertained the nature of my said
invention in what manner the same is to be performed I declare what I claim is :-
The improvements in ventilating or inspection boxes for sewer pipes, substantially
as and for the purposes hereinbefore described and shown in the accompanying
drawings.
Dated this 19th day of December 180A
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.