IMPROVEMENTS IN UNION JOINTS OR COUPLINGS FOR PIPES AND FOR OTHER PURPOSES to be as follows:
Year: 1885

page_text: I JOHN EVANS of Grove Tavern Oxhill Road Handsworth in the County of
Stafford Licensed Victualler do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN UNION JOINTS OR COUPLINGS FOR PIPES AND FOR OTHER
PURPOSES to be as follows:-
"
My invention consists of the improvements herein after described in union joints
or couplings for pipes and for other purposes such for example as connecting pipes
to taps.
By my invention the coupling or connecting together of the two parts of the
union joint and their disconnection is effected with great ease and certainty and
with great rapidity.
I will describe my invention as applied to a union joint or coupling for a pipe.
I dispense with the ordinary screw arrangement and in place thereof I construct
the parts as follows:-On the outside of the smaller tubular part of the joint or
coupling and near the outer end thereof I form two pins or studs at opposite
points and on the outside of the other and larger tubular part of the union joint
or coupling I place a rotating collar having radial arms at opposite points by
which it can be turned The larger tubular part of the joint has at its outer end
a flange against which the collar bears the said collar being kept in its place and
its motion limited by a pin on the tubular part working in a circular groove in
the said collar. That edge of the rotating collar situated most distant from the
flange of the tubular part carrying it is provided with two inclines each incline
occupying about one half of the collar the wide end of one incline joining the
narrow end of the adjacent incline. In the larger tubular part of the coupling
carrying the rotating collar are longitudinal slots at opposite points and corre-
sponding slots are made in the rotating collar the said slots in the tubular part
and collar having a size proper for the pins or studs on the first named or smaller
tubular part of the coupling to take into. When the rotating collar is in its
unfastened position the slots in it are coincident with those in the tubular part
carrying it and when it is in this position the larger tubular part can be passed by
a sliding motion onto the other smaller tubular part of the coupling the studs or
pins on the latter tubular part entering the slots in the other tubular part. When
Price S1

page_text: the two parts of the coupling have been thus arranged each stud is situated in
front of the narrow end of its respective incline on the rotating collar. By now
turning the rotating collar by its arms through about a quadrant the inclines of
the collar acting upon the studs forcibly press the two parts of the coupling
together the end of the smaller tubular part seating itself closely against a leather
or india rubber washer at the larger tubular part. The two parts of the coupling
are thus fixed securely together and a liquid and air tight joint made between
them and the two parts of the pipe to which they are respectively connected. To
unfasten the coupling the motion of the rotating collar is reversed so as to bring
its slots opposite those in the larger tubular part. By this motion the inclines of
the collar are removed from the studs and the latter may be withdrawn from the
slots and the two parts of the coupling disconnected.
In applying my improved union joint or coupling to the connecting of a pipe
to a tap I place the studs on the end of the delivery pipe of the tap to which the
separate pipe is to be connected and use there with that part of the coupling herein
before described carrying the rotating collar and parts connected with it.

page_text: Improvements in Union Joints or Couplings for Pipes and for
other Purposes.
I JOHN EVANS of Grove Tavern, Oxhill Road, Handsworth in the County of
Stafford, Licensed Victualler do hereby declare the nature of my Invention for
IMPROVEMENTS IN UNION JOINTS OR COUPLINGS FOR PIPES AND FOR OTHER
PURPOSES and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
"
My invention consists of the improvements hereinafter described in union joints
or couplings for pipes and for other purposes, such for example as connecting pipes
to taps.
By my invention the coupling or connecting together of the two parts of the
union joint and their disconnection is effected with great ease and certainty and
with great rapidity.
I will describe my invention as applied to a union joint or coupling for a pipe.
I dispense with the ordinary screw arrangement and in place thereof I construct
the parts as follows:-On the outside of the smaller tubular part of the joint or
coupling and near the outer end thereof I. form two pins or studs at opposite
points and on the outside of the other and larger tubular part of the union joint or
coupling I place a rotating collar having radial arms at opposite points by which it
can be turned. The larger tubular part of the joint has at its outer end a flange
against which the collar bears, the said collar being kept in its place and its
motion limited by stop pins on the rotating collar working in a circular groove in
the tubular part. That edge of the rotating collar situated most distant from the
flange of the tubular part carrying it is provided with two inclines, each incline
occupying about one half of the collar, the wide end of one incline joining the
narrow end of the adjacent incline. In the larger tubular part of the coupling
carrying the rotating collar, are longitudinal slots at opposite points and corre-
sponding slots are made in the rotating collar the said slots in the tubular part
and collar having a size proper for the pins or studs on the first named or smaller
tubular part of the coupling to take into.
By means of the inclines of the collar on one part of the coupling being made to
bear against the studs on the other part of the coupling, the two parts of the
coupling are forcibly pressed and held together as hereinafter particularly described
with reference to the accompanying Drawing.
In applying my improved union joint or coupling to the connecting of a pipe to
a tap I place the studs on the end of the delivery pipe of the tap to which the
separate pipe is to be connected and use there with that part of the coupling
herein before described carrying the rotating collar and parts connected with it.
Figure 1 represents in side elevation and Figure 2 in plan a union joint or
coupling constructed according to my invention and Figure 3 represents a longi-
tudinal section of the same; Figure 4 represents the smaller tubular part of the
union joint or coupling in end elevation and side elevation and plan; Figure 5
represents a portion of the larger tubular part of the union joint or coupling in

page_text: side clevation, plan and end elevation, without the rotating collar; Figure
represents in front elevation and side elevation the rotating collar detached from
the larger tubular part of the union joint or coupling.
The same letters of reference indicate the same parts in the several Figures of
the Drawing.
is the smaller tubular part of the union joint or coupling and b is the larger
tubular part of the same, flexible or other pipes being connected in the usual way
to the nozzles a², 62 carried by the said parts a and b. On the smaller tubular
part a and at opposite points are two pins or studs c, c and in the larger tubular
part bare longitudinal slots d d for the studs or pins c, c to take into. On the
outer end of the larger tubular part 6 of the union joint or coupling or that end
which is presented to the other part a of the joint or coupling, is a flange e and
working on the said larger part is the rotating collar h (shown separately in
Figure 6) bearing against the said flange e the said collar h being rotated by the
radial arms i, 2. In the inner side of the rotating collar are slots h³, h³ (see
On the inside of the collar hare
Figure 6) of the same breadth as the studs c, c.
guide studs or pins, which work in a circular groove 13 in the tubular part b
of the union joint. By means of the said pins k, and groove ³ the collar h is
connected to the part b and the motion of the said collar limited. On that edge
of the rotating collar h most distant from the flange e are two inclines h², h² each
incline occupying about one half of the collar, the wide end of one incline joining
the narrow end of the adjacent incline as seen in Figures 2 and 6.
The nozzle 2 of the larger tubular part 6 of the joint or coupling may either bo
made in one piece with the said tubular part or separately but I prefer to make it
separate from the said part b. The nozzle has near its inner end a flange and
on opposite sides of the flange are washers 1, 13 (see Figure 3). One of the said
washers marked 7 takes a bearing against the seat of the part b and the inner end
of the smaller tubular part 6 seats itself when the two parts of the coupling are
connected together against the other washer 1³.
When the nozzle 2 is made in one piece with the part b, a washer is placed at
the closed end or bottom of the part b for the end of the part a to seat itself
against.
In fitting together the two parts of the union joint or coupling the rotating
collar h on the larger tubular part b is turned until the slots h³, h³ in it are coincident
with the slots d, d in the said part b. When the collar is in this position the
part b can be passed by a sliding motion onto the other and smaller part a of the
union joint, the studs or pins c, c on the said smaller part a entering the slots d, d
in the larger part b and passing beyond that edge of the rotating collar h having
the inclines h, upon it. When the two parts of the union joint or coupling
have been thus arranged the studs c, c are situated in front of the narrow ends of
their respective inclines, 2 on the rotating collar h. By now turning the
collar through about a quadrant the slots h³, h³ are removed from opposite the
studs c, c and the inclines 2, h2 of the said collar h acting upon the said studs c, e
forcibly press the two parts of the coupling together, the end of the smaller tubular
part a seating itself closely against the leather or other washer at the seat part
of the larger tubular part b. The two parts of the coupling are thus fixed securely
together and a liquid and air tight joint made between them as best seen in the
section Figure 3.
To unfasten the coupling the motion of the rotating collar h is reversed so as to
bring its slots h³, h³ opposite the slots d; d in the larger tubular part 6 of the
coupling. By this reverse motion the inclines h2, h3 of the collar h retire from the
studs c, c and the latter may be withdrawn from the slots d, d and the two parts
of the coupling disconnected.
Figure 7 represents my improved coupling applied to the connecting of a pipe to
a tap.
In this case the studs c c which in the union joint are placed on the smaller
tubular part a, are placed on the delivery pipe p of the tap and are marked c,.c.

page_text: The larger part b6 of the coupling carrying the loose nozzle 62 to which the pipe is
secured is constructed and connected to the studs c, c on the tap in the manner
hereinbefore described with respect to a union joint and corresponding parts are
marked with the same letters of reference.
Having now particularly described and ascertained the nature of my said
invention and the manner in which the same is to be performed I declare that
I claim as my invention of "Improvements in union joints or couplings for pipes
and for other purposes"
"
Making on the outside of the smaller tubular part of the joint or coupling and
at opposite points, two pins or studs and making two longitudinal slots in the
larger tubular part of the joint or coupling for the pins or studs on the smaller
tubular part to take into and combining with the larger tubular part a rotating
collar slotted in its inner side and provided externally with inclines of the kind
described and illustrated the rotation of the said collar removing its slots from
opposite the pins or studs on the smaller tubular part of the coupling and causing
its inclines to act upon the said pins or studs thereby forcing the two parts of the
union joint or coupling together and forming a liquid and air tight joint between
them substantially as herein before described and illustrated in the accompanying
Drawing; also the application of the coupling to the coupling or connecting of
pipes to taps and for other like purposes substantially as described and illustrated.
Dated this Twenty fifth day of January 1886.