IMPROVEMENTS IN PIPE COUPLINGS
Year: 1885

page_text: I MARK STEPHENSON of Hoghton near Preston in the County of Lancaster
Shuttle Maker do hereby declare the nature of my invention for IMPROVEMENTS IN
PIPE COUPLINGS to be as follows:-
This invention relates to couplings for connecting the ends of pipes used for the
conveyance of water, gas, steam or other fluids the object of the invention being to
afford a ready and economical means of connecting and disconnecting the same and
at the same time to make a tight joint.
The improved coupling is made of two socket ends (fitted with flanges) one of
which has a short projecting tube which fits inside the other. The socket ends are
to be attached by screwing or otherwise to the ends of the pipes to be coupled, or
in some cases they may be cast or formed therewith, and are by preference of such
a diameter internally as to correspond with the bore of the pipes to be coupled so
that there is no break or obstruction in the bore.
The short projecting tube has a neck turned or formed in its circumference near
the end, leaving a rim at the end, and this rim is partially removed upon too
opposite sides so that it forms, as it were, two curved lugs or wings.
In the interior of the other socket end (but rather nearer to the flange) are cast
two corresponding lugs or projections so placed that the lugs at the end of the
short tubes can pass between them, and the lugs just pass beyond each other, so
that upon turning one of the socket ends partially round the two will become
locked together.
The faces of the two pairs of lugs or projections which now come in contact are
slightly inclined (or the face of one pair of them only) and as the socket ends
are turned round these inclined faces will act upon each other like a screw so as to
draw the two flanges tightly together, and a washer of leather, paper, or other
compressible material having been previously placed between these two flanges a
perfectly tight joint is made, and this joint can at any time be uncoupled by merely
turning one socket partially round in the reverse direction.
The socket ends or other flanges should be provided with pins or other projections
or with holes or other equivalent means, to enable them to be turned round by a
key or other convenient instrument.
Dated L:_ L

page_text: I MARK STEPHENSON of Hoghton near Preston in the County of Lancaster
Shuttle Maker do hereby declare the nature of my invention for IMPROVEMENTS IN
PIPE COUPLINGS and in what manner the same is to be performed, to be particularly
.described and ascertained in and by the following statement :-
This invention relates to the couplings for connecting the ends of pipes used for
the conveyance of water, gas, steam, or other fluids, the object of the invention
being to afford a ready and economical means of connecting and disconnecting the
same, and at the same time to make a tight joint.
The nature and object of my said invention will be readily understood on
reference to the annexed sheet of drawings marked with figures and letters of
reference corresponding with those in the following explanation.
Fig. 1. and Fig. 2. are sectional views of the two ends of a pipe made according
to any invention Fig. 1. representing the "he" end, and Fig. 2 the socket or "she'
end. Fig. 3 is an end view of Fig. 1. and Fig. 4 is an end view of Fig. 2.-Fig. 5
is an elevation showing the two pipe ends coupled.
Fig. 6 is a transverse section, and Fig. 7. a longitudinal section showing a
modification for coupling two "he" ends so as to be able to break joint without
moving either pipe end ways.
The improved coupling is made of two ends a, a, one having a socket b, b (see
Figs. 1. and 2) and the other made with a short projecting tube c, c which fits
inside the socket b, b of the first. These ends b, b and c, o are provided with
flanges d, d and they may be attached by screwing or otherwise to the ends of the
pipes to be coupled, or they may be cast or formed therewith as shown on the
drawing, and are by preference of such a diameter internally as to correspond with
the bore of the pipes to be coupled, so that there is no break or obstruction in the
bore. The short projecting tube c, c has a neck e, e turned or formed in its
circumference near the end, leaving a rim ff at the end, and this rim is partially
removed upon two opposite sides, so that it forms as it were two curved lugs or
wings (see Fig. 3).
•
In the interior of the other or socket end bb (but rather nearer to the flange d, d)
are cast two corresponding lugs or projections g, g (Figs. 2 and 4) so placed that
the lugs ff at the end of the short tube c, c can pass between them, and the lugs
just pass beyond each other so that upon turning either one or the other of the
pipes or ends partially round the two will become locked together.
The faces of the two pairs of lugs or projections f. f and g, g which now come in
contact are slightly inclined (or the face, of one pair of them only) and as the pipe
or socket is turned round these inclined faces will act upon each other like a screw
and draw the two flanges d, d tightly together, and a washer h, h of leather, paper,
or other compressible material having been previously placed between these two
flanges a perfectly tight joint is thus made i and this joint can at any time be
uncoupled by merely turning one pipe or socket partially round in the reverse
direction.

page_text: The socket ends, or their flanges, should be provided with pins or other projections,
or with boles (as at i, i Fig. 2) or be made octagonal or hexagonal outside (as at
Fig. 7) or be otherwise so formed as to enable them to be turned round by means
of a key or other convenient instrument.
In Figs. 6 and 7. k, k is a double socket or coupling ring provided internally with
two pairs of lugs for securing two "he" ends like Fig. 2 together.
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
The improvements in pipe couplings as hereinbefore particularly described and
illustrated by the drawings annexed consisting
First. Of "he" and "she" ends provided with projections or lugs which pass
each other and have their faces slightly inclined so that upon partially turning
either one or the other the two ends or flanges are screwed or brought tightly
together with a leather, paper, or other washer intervening, so as to make a
tight joint.
Secondly. I claim the double socket or ring (substantially as shown at k, k
Figs. 6 and 7) with two sets of internal lugs for uniting two "he" ends together so
that a joint can be opened without moving either pipe endwise.
GEORGE DAVIES,
Agent for the Applicant.