IMPROVEMENTS IN PIPES AND PIPE JOINTS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, FREDERICK JACKSON, of 18, Low Pavement, in the Town and County of the
Town of Nottingham, Civil Engineer, do hereby declare the nature of my Invention
for "IMPROVEMENTS IN PIPES AND PIPE JOINTS" and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :—
My improvements relato to pipes and pipe joints, fully described in the
Specification of a former Patent, granted to me for "Improvements in Pipes and
Pipe Joints," dated Sept. 7th 1880, N° 3626.
Figure 1 represents a longitudinal sectional view of one entire pipe, and portions
of two other pipes constructed according to my improvements.
Figure 2 a plan of the same.
Figure 3, is a cross section of the joint, of two joined pipes, and Figures 4, 5 & 6
are enlarged sectional views of various shaped openings, showing portions of joined
pipes. The lines lettered D above each Figure shew the several openings in plan.
The corresponding parts in each Figure are indicated by the same letters where
necessary. At Figures 1 and 2, A represents a pipe constructed according to my
improvement, B is a circular band near the spigot end, C the socket head, D an
opening through which the cement to unite the pipes is poured, E annular space
between the spigot and interior of socket, F fillet or washer, and G openings on
each side of the filling hole, each opening passing clear through to the interior of
the socket head,
The inside of the socket end, and the outside of the spigot end of each pipe is
serrated. When so formed a fillet F of cement, prepared gas tar, or a washer of
felt or other soft material is placed within the socket end of the pipe. The spigot
end of another pipe is then inserted until its band B tits tight inside the socket; a
fillet of strong cement or other suitable material is then used to close all openings
between the band and socket; this and the fillet or washer inside the socket end
leaves an annular space between the socket and the spigot, which is watertight
except at the opening D at the top of the socket. When the cement or other
material has hardened, semi-fluid cement or other material is poured through the
Din A1

page_text: JACKSON Improvements on 1 ipes UVIDA.
opening D in the top of the socket, as the cement fills up the annular space, tho
fixed air readily escapes through the openings G, thereby allowing the annular
space to be quickly filled with cement, or other material, without it being blown
back by the air trying to escape past it, thus each joint can be made in less time
than heretofore, and a saving is effected by the cement or other material not being
wasted, a much sounder joint being formed, as all air bubbles, which formerly
interfered with the soundness of the joint, is by this Invention, entirely done away
with, and the material poured in forrus one solid mass when fully set. When the
space and opening is full and flushed up; it is then left to set, uniting the pipes so
securely as to render the joints perfectly water tight, and any number of pipes so
put together, when struck at any part, will ring as clearly as if they were one pipe.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
claim is Two or more openings G on each side of the filling opening D, to enable
the fixed air to escape, during the filling of the annular space E, with cement or
other material, so as to render the joint free from air bubbles, and entirely sound.
Dated this Twenty-sixth day of May 1884.