IMPROVEMENTS IN AND APPLICABLE TO DRAIN PIDES
Year: 1878

page_text: LETTERS PATENT to Edward Brooke, of the Firm of Edward Brooke and
Sons, of the Field House Fire-clay Works, near Huddersfield, in the County
of York, for the Invention of "IMPROVEMENTS IN AND APPLICABLE TO DRAIN
PIDES"
Sealed the 14th March 1879, and dated the 17th September 1878.
PROVISIONAL SPECIFICATION left by the said Edward Brooke at the Office
of the Commissioners of Patents on the 17th September 1878.
EDWARD BROOKE, of the Firm of Edward Brooke and Sons, of the Field House
Fire-clay Works, near Huddersfield, in the County of York. "IMPROVEMENTS IN
AND APPLICABLE TO DRAIN PIPES."
This Invention relates to those pipes used in that class of draining in which two
rows of pipes are employed, one pipe being placed above or over the other, the
upper pipe being known as the "sewer pipe" and the lower one the "subsoil
pipe."
These improvements consist:-Firstly. In combining the two pipes referred to
into one pipe, which constitutes a double pipe having two separate and distinct
passages or openings, the upper passage being employed as the sewer pipe, and the
lower passage being employed as the subsoil pipe.
Secondly. Where a sewer pipe and subsoil are employed separately as at present,
I place a continuous longitudinal rest on top of the subsoil pipe for the purpose of
bearing or supporting the sewer pipe, openings being in the longitudinal rest so as
to allow room for the socket or flange of the sewer pipe. By this means bearing
surface is given to the whole length of the sewer pipe. The continuous longitudinal
rest may either be separate from the subsoil pipe or a part of it.

page_text: :
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward Brooke in the Great Seal Patent Office on the 17th March
1879.
EDWARD BROOKE, of the Firm of Edward Brooke and Sons, of the Field House
Fire-clay Works, near Huddersfield, in the County of York. "IMPROVEMENTS IN
AND APPLICABLE TO DRAIN PIPES."
This Invention relates to pipes to be employed in that description of drainage
in which two distinct passages are required, the upper one being known as the
"sewer pipe" and the lower one the "subsoil" pipe.
My improvements consist:-Firstly. In constructing pipes in which there shall
be two distinct passages separated from each other by a diaphragm, the upper passage
serving for the " sewer" pipe and the lower one for the subsoil pipe.
Secondly. When the sewer pipe and the subsoil pipe are constructed separately
as at present, my improvements consist in forming the subsoil pipes in such a manner
that they afford an almost continuous rest or support for the sewer pipes, openings
or recesses being made at intervals to admit the socket or flange of the sewer pipe.
The sewer pipes may rest upon the subsoil pipes, or brick rests may intervene if
desirable.
ا
In order that my Invention may be more fully understood, I herein give reference
to the accompanying Drawings marked with figures and letters.
Figs. 1, 2, 3, 4, 5, 6 illustrate the first part of my Invention, or the method of
forming pipes with two passages separated by a diaphragm A. In each case the
passage marked B serves for the sewer pipe, whilst the passage marked C serves
for the subsoil pipe. In Figs. 5 the subsoil pipe is divided vertically by the
partition D.
In Figs. 7 and 8 I have shewn a modified form of construction, the upper part
of the sewer pipe being formed separate from the lower half so that it can be readily
removed.
Figs. 9, 10, 11, 12 illustrate the second part of my Invention, which consists in
forming the subsoil pipe in such a manner as to afford a continuous support for the
sewer pipe. E is the subsoil pipe which is divided internally so as to give extra
strength, the upper external surface being concave and cut away at one end e
so as to adapt it to the shape of the sewer pipe B which rests upon it, and is thus
supported continuously throughout its length.
Instead of forming the subsoil pipe as above described, it may be formed as shewn
in Figs. 13, 14, 15, and the sewer pipe is supported by brick G which rest upon the
sides of the subsoil pipe.
Having thus described the nature of my Invention, and the manner in which
the same is to be performed or carried into practice, I would have it understood
that I do not confine myself to the precise details of construction herein shewn, as
the same may be varied, but what I claim as my Invention and consider to be
new is,―
Firstly. The construction of drain pipes having two passages separated from
one another by a diaphragm, in manner and for the purpose herein shewn and
'described.
Secondly. The construction of subsoil pipes formed so as to afford a continuous
support for the sewer pipes, either with or without the use of the bricks G or

page_text: their equivalent, as shewn and described in reference to the second part of my
Invention.
In witness whereof, I, the said Edward Brooke, have hereunto set my
hand and seal, this Twenty-first day of February, in the year of our Lord
One thousand eight hundred and seventy-nine.
Witness,
A. B. CROSSLEY,
Tasker and Crossley,
Patent Offices,
Huddersfield.
EDWARD BROOKE, (L.S.)