IMPROVEMENTS IN DRAIN PIPES
Year: 1884

page_text: I, THOMAS LENNOX WATSON, of Glasgow, in the county of Lanark, Architect,
do hereby declare the nature of my said Invention for "IMPROVEMENTS IN DRAIN
PIPES," to be as follows:-
The main object of this Invention is so to form drain pipes that the jointing or
packing of the joints may be conveniently effected from the inside as well as from
the outside.
The improvements consist in constructing drain pipes in the form of gutters or
channels of half round or similar section throughout their entire length, and fitting
over such channels a covering of flat or arched form, a longitudinal joint being
thereby forined on each side of the completed pipe. The covers may fit into
rebates on the upper edges of the pipes and may overlap one another at the end
joints which may be rebated or made in the form of spigot and faucet joints.
Junction pieces, branches, traps, siphons, or bends on the pipes are by preference
made of the same section as the main lengths of piping, but with the channel and
cover in one piece.
By forming the pipes with longitudinal joints as described, the advantage is
obtained that the end joints may be packed smoothly from the inside as well as
from the outside, and the fall of the drains, the tightness of the joints, and the
regularity of the flow within the channels, may be tested before the covers are.
fitted over them, while the covers can be readily removed and replaced to admit of
inspection of the pipes, or for renewal or repair.
W. R. M. THOMSON & Co.,
Agents for the Applicant.

page_text: I, THOMAS LENNOX WATSON, of Glasgow in the county of Lanark, Architect,
do hereby declare the nature of my said Invention for "IMPROVEMENTS IN DRAIN-
PIPES, " and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
The main object of this Invention is so to form drain pipes that the jointing or
packing of the joints may be conveniently effected from the inside as well as from
the outside.
The Invention is illustrated in the accompanying drawings, in which Figure 1 is
a transverse section, taken on the line a a in Figure 3. Figure 2 is a plan, and
Figure 3 a longitudinal vertical section, of a modification of my drain pipes.
The improvements consist in constructing drain pipes in the form of gutters or
channels A of half round or similar_section, throughout their entire length, and
fitting over such channels a covering B of flat or arched form, a longitudinal joint b
being thereby formed on each side of the completed pipe. The covers B would fit
into rebates O on the upper edges of the pipes and would overlap one another at
the end joints, which may be rebated and form spigot and faucet joints D as
indicated in figures 2 and 3. Junction pieces, branches, traps, siphons or bends on
the pipes are by preference made of the same section as the main length of piping,
but with the channel and cover in one piece.
By forming the pipes with longitudinal joints as described, the advantage is
obtained that the end joints D may be packed smoothly from the inside as well as
from the outside, and the fall of the drains, the tightness of the joints, and the
regularity of the flow within the channels, may be tested before the covers are fitted
over them, while the covers B can be readily removed and replaced to admit of
inspection of the pipes, or for renewal or repair.
Having now particularly described the nature of my said Invention, and in
what manner the same is to be performed, I declare that what I claim is
That improvement in the construction of drain pipes which consists in forming
the same of gutters or channels provided with covers substantially as and for the
purpose herein set forth.
Dated this Thirteenth day of February 1885.
W. R. M. THOMSON & Co.,
Agents for Applicant.