Improvements in Flanged Joints for Pipes.
Year: 1892

page_text: Date of Application, 26th Sept., 1892
Complete Specification Left, 19th June, 1893-Accepted, 22nd July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Flanged Joints for Pipes.
I HENRY SPARROW of 38 Abelwell Street Walsall in the County of Stafford
Cashier do hereby declare the nature of my said invention to be as follows:-
My invention has for its object improvements in flanged joints for pipes by
which means the flanges may be disconnected from the pipes and easily replaced by
the workman fixing them which is a distinct advantage for carriage export further
considerable advantage accrues from my improvement when any particular length
of pipe is required to make up as the workman fixing can cut off to the length
required and replace the flanges without sending to the works for the requisite
length. Ordinary screwed fittings may also be connected up to these pipes
without preparation while the joint may be easily made in the most awkward
position.
In carrying my invention into effect I form a screw thread on each end of the
pipe and place a loose flange upon the same which slides on over the screw with an
easy fit after which I screw a collar on each end that on the one end of the pipe
being arranged to project while at the other end the pipe projects beyond the
collar so that the one collar forms a socket into which the other end of the pipe
fits but not for the ends to butt. Between the two collars I place a ring of india
rubber and the two flanges are rebated to receive the collars so that upon the
flanges at each end of the pipe being bolted together the collars are pressed
It will
against the intermediate ring of rubber or other suitable substance.
readily be seen that the flanges may be readily disconnected from the tubes and
easily replaced by the workman fixing the pipes. I may use flanges either cast
stamped or wrought and I may have the flange on one end loose and on the other
end fast. The collars may be hot or cold and afterwards brazed or welded on to
the pipes as may be preferred.
Dated this 24th day of September 1892.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in Flanged Joints for Pipes.
I, HENRY SPARROW, of 38 Abelwell Street, Walsall, in the County of Stafford,
Cashier, do hereby declare the nature of my said invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
My invention has for its object improvements in flanged joints for pipes by which
means the flanges may be disconnected from the pipes and easily replaced by the
workman fixing them which is a distinct advantage for carriage & export further
considerable advantage accrues from my improvement when any particular length
of pipe is required to make up as the workman fixing can cut off to the length
required and replace the flanges without sending to the works for the requisite
length.
Ordinary screw fittings may also be connected up to these pipes without prepara-
tion while the joint may be easily made in the most awkward position.
In carrying my invention into effect I form a screw thread on each end of the
pipe and place a loose flange upon the same which slides on over the screw with an
easy fit after which I screw a collar on each end that on the one end of the pipe

page_text: being arranged to project while at the other end, the pipe projects beyond the
collar, so that the one collar forms a socket into which the other end of the pipe
fits but not for the ends to butt. Between the two collars I place a ring of india-
rubber and the two flanges are rebated to receive the collars so that upon the
flanges at each end of the pipe being bolted together the collars and flanges are
pressed against the intermediate ring of rubber or other suitable substance. It
will be seen that the flanges may be readily disconnected from the tubes and easily
replaced by the workman fixing the pipes. I may use flanges either cast,
stamped or wrought and I may have the Hange or one end loose and on the other
end fast.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a double sized sheet of drawings upon
which is illustrated two modifications of my invention which will enable others
to apply it without difficulty.
Figure 1., is a longitudinal cross sectional elevation of the first modification of
my invention.
Figure 2., is a similar longitudinal sectional elevation broken off showing a
slight modification in some of the parts hereafter to be explained.
Figure 3., is an end elevation of the face of the joint when taken apart.
I have shown the two pieces of pipe to be united by the joint as A and A³.
The flanges for screwing it up as B and B¹. The collars are represented by E
and E. The end of both pipes A and A' are screwed at a² and a³ and the
collars E and E' are tapped. In the modification Figure 1 the collar E is not run
on to the pipe E its whole length and the hole in the collar is enlarged a little at e¹
so as to allow the projecting piece a of the pipe A¹ to enter this recess. Both
flanges B and B are slightly larger than the diameter of the pipe so that they
slide over it easily and they are recessed as shown to receive the collars E and E¹.
These flanges are first passed on to the pipe and then the collars E and E' are
screwed into their positions as shown. The indiarubber or the equivalent ring M
is then inserted and the joint screwed up by the bo¹i. The modification shown
by Figure 2, only differs from Figure 1 in that bot ends of the pipe A and A¹
stand level with the face of the rings E and E' or f anything just the slightest
shade under level as these ends must not touch each other. The outer edges of
each ring E and El are cut away or hollowed as well as the inner edges 62 and 63
of the recesses to form a recess in which a round or other similar packing ring
may be placed and the flanges are then screwed very nearly together or quite close
up if necessary.
The great advantage of this joint is quite obvious, that is to say, the collars E
and E' can be removed at any time and the flanges taken off and the pipes used up
in other ways such for instance as by the use of an ordinary socket tee, bend &c.
and without going to the shop pipes can be cut off and screwed and put together
leaving a stock of the collars E and E' in hand.
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
The improvements in the construction of loose flanged joints for pipes having
removable screwed collars E and E¹ whether made according to Figures 1 or 2 in
combination with the other parts, substantially as herein set forth & as shown
upon the drawings.
Dated this 11th do.. CL
1000
4
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.