Improvements in Connecting Drain, Sewer, and like Pipes.
Year: 1892

page_text: Date of Application, 22nd Feb., 1892
Complete Specification Left, 19th Nov., 1892-Accepted, 31st Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Connecting Drain, Sewer, and like Pipes.
I, DAVID GEORGE ANDREW, of Manor Road, East Molesey, in the County
of Surrey, Architect and Builder, do hereby declare the nature of this invention
to be as follows:-
:―
My invention relates to improvements in coupling or connecting sewer, drain
and other earthenware pipes whereby I am enabled to connect such pipes in a
simple and expeditious manner, at the same time ensuring the tightness of the
joint.
In carrying ont my invention I employ plain pipes or tubes, that is to say, tubes
or pipes without sockets, and connect the lengths of pipes or tubes by a coupling
consisting of a metal band; the band being hollowed so as to be practically semi-
cylindrical in shape with a flange at each edge. This coupling is passed over the
two ends of the pipes to be connected and is tightened thereon by means of a
toothed rack or quadrant on one end of the coupling passing through a staple or slot
in the other end of the coupling: the coupling being thus attached cement is poured
into the same through an opening left where the ends meet so as to fill up the space
between the periphery of the pipes and the coupling, a perfectly secure and water-
tight joint being thus obtained.
Dated the 22nd day of February 1899
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Connecting Drain, Sewer, and like Pipes.
1, DAVID GEORGE ANDREW, of Manor Road, East Molesey, in the County
of Surrey, Architect and Builder, do hereby declare the nature of this invention
and in what manner the same is to be perfermed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to improvements in coupling or connecting sewer, drain and
other earthenware pipes whereby I am enabled to joint such pipes in a simple and
expeditious manner, at the same time ensuring the tightness of the joint.
In carrying out my invention I employ plain pipes or tubes, that is to say, tubes
or pipes without sockets, and connect the lengths of pipes or tubes by a coupling
consisting of a metal band; the band being hollowed and provided with a flange at
each edge. This coupling is passed over the two ends of the pipes to be connected
and is tightened thereon by means of a toothed rack or quadrant and a link. The
coupling being thus attached cement is poured into an opening left where the ends
meet so as to fill up the space between the periphery of the pipes and the coupling
whereby a perfectly secure and water-tight joint is obtained.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which:-
Figure 1 is a plan view of portions of two drain pipes, the joint between which
is formed according to my invention.
Figure 2 is a longitudinal section of the same; and,
Figure 3 is an end view, the pipe being shewn in section.
Figures 4, 5, 6 and 7 are perspective views illustrating details.

page_text: Figure 8 is a side elevation of a tool which I employ for tightening my metal
bands or couplings upon the pipes; and,
Figure 9 is a front elevation of the same.
a is my metal band or coupling which as shewn is semi-circular in section to form
a space into which the cement for making the joint can be poured, and provided
at the sides with the flanges c, c so as to fit tightly around the pipes to be jointed.
To hold the band tightly around the pipe I attach to each flange at one end a
hook d with which a link e is connected and, upon each flange at the other end of
the band I form a toothed-segment f with one or the other of the teeth of which the
link e is adapted to engage. "In practice the hook d and segment f are formed with
flanges, as shewn in Figures 5 and 7, and are pushed up through slots g, g in the
flanges c, e as shewn in Figures 4 and 6.
In order to draw the links e, e tightly onto the toothed-segments f, f1 employ a
tool of the kind shewn in Figures 8 and 9. This tool has at its end a jaw / adapted
to engage with the teeth of the segment f and has pivotted to it a hook i which is
bifurcated so as to pass over the segment f. In using this tool the jaw / is engaged
with one of the teeth of the segment and the hook i is engaged with the link e, as
shewn by the dotted lines in Figure 8, so that when the lever is pulled the links
are drawn tightly onto the segments f and engaged therewith.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improvements in connecting drain, sewer and like pipes consisting in
placing a hollowed band around the junction of the pipes and then pouring into the
same a suitable cement for making the joint, substantially as described.
2. In connecting drain, sewer and like pipes the use of a hollowed metal band
the ends of which are jointed by means of links engaging with hooks on one end of
the band and with toothed segments on the other end, substantially as described.
3. The use in connecting drain, sewer and like pipes, by means of a hollowed
band the ends of which are connected as described, of the instrument or tool shewn
in Figures 8 and 9 of the drawing for tightening the said band upon the pipes,
substantially as described.
Dad the 10th day of November 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.