IMPROVEMENTS IN JOINTS FOR IRON PIPES
Year: 1885

page_text: 1, ALBERT SAUVÉE, of 22 Parliament Street, Westminster, in the County of
Middlesex, Civil Engineer do hereby declare the nature of my invention for
"IMPROVEMENTS IN JOINTS FOR IRON PIPES" and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :—
My Invention for Improved Unions or Joints for Pipes consists in forming the
parts in such a manner as to produce a perfectly air-tight or water-tight joint.
In order to effect this I use two Collars, made of any suitable material, which
may be fixed to the ends of the Pipes by screwing, rivetting, soldering or any
other suitable means, or may fit loose on the ends of the Pipes. The Collars are
constructed with grooves so that when brought together, an annular recess is
formed between them. Into this annular recess I introduce a disc of India Rubber
or any other suitable packing.
The Collars are secured together, and the force necessary to compress the packing
is obtained, by means of suitable connections of the required length fitted on to
lugs formed on the Collars.
Figs 1, 2 and 3 shew an arrangement in which the Collars A provided with the
lugs B running parallel to the longitudinal axis of the pipes, are held together and
tightened by means of the Conical Pins C.
Figs 4, 5 and 6 shew another arrangement. The Collars A provided with the
lugs B are held together and tightened by means of rings, kept in position by a
small notch on the lugs.
In either arrangement the packing is fitted into the recess between the two
Collars. The necessary compression of the packing is obtained by the pressure from
the Conical Pins or Rings acting on the natural elasticity of the packing.
The figs shew Collars provided with two pairs of lugs, but I do not confine
myself to two only; for pipes of large diameter, the number of lugs may be
increased.
Fig 7 shews an arrangement best adapted for thin Pipes. The end of one Pipe
(the female end) is slightly chased as shewn and bears direct on the packing. The
Collars in this case are shewn rivetted to the ends of the Pipes.

page_text: For use in bends it will be most advantageous to have the Collars free on the
Pipes. Such an arrangement is shewn in Fig 8. In this arrangement the ends of
the Pipes have fixed on them Rings or chased iron plates, against which the Collars
wear when being tightened up. The Rings themselves form the annular groove
for the packing. In this arrangement the female end is formed either by chasing
up the pipe (Figs 9 and 11) or by a flanged collar. (Fig 10). The male end is
formed either by a flanged Collar fixed near the end (Figs 9 & 10) or by turning
up the end of the Pipe itself.
The mode of joints by lugs cast with the pipes is well known for Cast Iron Pipes,
but has not been applied to Wrought Iron or drawn metal Pipes. My invention
is to effect a perfectly air-tight or water-tight joint for these Pipes rapidly and
securely.
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
1 The use of the Collars fixed on the ends of Pipes forming by their junction the
annular space and provided with lugs for tightening up by means of the Conical
Pins as herein described.
2 The use of the Collars fixed on the ends of Pipes forming by their junction the
annular space and provided with lugs for tightening up by means of the Rings as
lierein described.
3 Forming the one end of the Pipe (the female end) so that it bears direct on
the packing as herein described.
4 The use of the loose Collars with lugs, Conical Pins or Rings, combined with
flanges fixed on the ends of the Pipes forming the annular space as herein
described.