Improvements in or applicable to Couplings for Hose Pipes Conveying Fluids for Warming Railway and Tramway Carriages or Vehicles, and for other purposes.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or applicable to Couplings for Hose Pipes
Conveying Fluids for Warming Railway and Tramway
Carriages or Vehicles, and for other purposes.
We, JAMES GRESHAM, Director of the Firm of Gresham & Craven Limited,
Craven Iron Works, Salford, Manchester, in the County of Lancaster, Engineer,
and HARRY EDWARD GRESHAM of the same place, Engineer, do hereby declare
the nature of the said invention, to be as follows:-
1. Our invention relates to couplings for hose pipes used for conveying heating
fluids between railway and tramway vehicles which couplings are also applicable
for coupling pipes subject to internal pressure, used for other purposes.
Our present invention is for improvements upon or for a modification of the bose
pipe coupling described in the Complete Specification of Letters Patent granted to
us numbered 751 of the year 1894, and illustrated more particularly by Figs: 5, 6,
7 and 8 of the drawings accompanying the said Complete Specification.
The two halves or parts forming the complete coupling when united are each
exact duplicates.one of the other but when they come together one forms a right
and the other a left hand coupling.
Each half coupling is a tubular casting of the desired shape to one end of which
the hose pipe is attached, the bore at that end where the two half couplings come
together is by preference recessed and screw tapped for a bush screwed on its
exterior having a head upon which the india-rubber packing or facing ring having
flanges, is placed, then by means of slight projections on the interior bore of the
screwed bush it can by a suitable instrument be screwed into the screw tapped bore
and the india-rubber ring is thus secured in a recess in the bore of the casting
between a shoulder on the head of the bush and the bottom of the recess in the
casting for the india-rubber ring, the external face of which extends a little beyond
that face of the casting, the faces of which come opposite to each other, when the
two parts of the coupling are united.
There is an internal groove in the head in which fluid pressure can enter and
pass through a series of holes in the flange head of the bush so as to come against
the back of the outward lip of the ring of india-rubber and force it outwards, and
its outer face against the outer face of the corresponding ring in the other half
coupling when the two parts are united together.
From one side of the casting for each half coupling, there is a projecting arm
having a hook end on the under edge of which projecting arm and hook, there is a
V groove formed, which will catch and hold upon a bevelled edged projection one
on each half coupling, on the other side of the casting which is opposite to that for
the projecting arm.
When the two halves of the coupling are brought together with the face or
junction end of each opposite to the other, the projecting hook arm of one half
reciprocally catches or hooks upon the projection for it upon the other half
coupling

page_text: When the two halves of the coupling are united, the hooks upon the projecting
arms from each are in a vertical plane and the lengthway of the projecting arm is
horizontal.
The weight of the couplings when united in the position described, brings slight
projections from the upper face of each half coupling casting one against the
other, and these slight projections keep the junction faces about parallel with each
other.
The projecting hook arms and the corresponding projections for them, serve to
hold the two half couplings when united from drawing apart, and the weight of the
half couplings when united does not and are not intended to act to press the india-
rubber facing rings together in order to make a fluid tight joint between the rings
(as in the facings of couplings hereinafter referred to) as this object is effected by
our improvements by the pressure of the fluid within the bore of the couplings
which acts to keep the lips of the india-rubber rings firmly against each other with
a pressure increasing with the pressure of the fluid to be resisted, thus making a
perfectly automatic fluid tight joint, not requiring any arrangements to draw the
half couplings firmly together.
In the side of the casting for each half coupling there is or may be a screw
tapped hole for any suitable valve which will automatically open when pressure in
the bore of the hose pipe ceases, which valve when open will allow condensed steam
or liquid to drain away, the valve closing again when pressure comes again into the
hose pipe. Our improved couplings therefore do not require to be made heavy in
order to get a tight joint as in other couplings named below.
"
"
2. This part of our invention consists in arranging our improved hose pipe
couplings as above described, so that they may be united to and combined with
hose pipe couplings well known as "Sewalls or
"Golds" hose pipe couplings-
(described respectively in Specifications of Patents No. 7510 of 1887 and
No. 17,139 of 1891)-in order that vehicles having a "Sewall or a "Gold"
coupling may be coupled up with vehicles having our improved couplings-this
part of our invention consisting in arranging one half of our improved coupling so
that it may be united to and combined with half couplings of the "Sewall
"Gold" type, or like types of coupling. Both these types of couplings require to
be made heavy and with projections having hooks or inclines that act as cams or
wedges to draw and press the two faces which form the joint together by the weight
of the couplings when united.
or
The projecting hook arms of our improved half couplings when made for each
other are also suitable to hook upon the projections or pulleys of the "Sewall" or
"Gold" coupling, or couplings of like type, and the projections upon our improved
couplings for the book arms are made not only to suit the hooks of our own
couplings but those of the "Sewall" or "Gold" couplings, or couplings of
like type.
The facings of the "Sewall" or "Gold" coupling do not press against the
india-rubber ring facings of our improved coupling but remain passive, the india-
rubber ring of our improved half coupling being pressed by the internal fluid
pressure within the bore against the face of the ring or facing of the "Sewall" or
"Gold" coupling, and will thus make a tight joint with them.
Dated this Nineteenth day of April 1895.

page_text: Improvements in or applicable to Couplings for Hose Pipes
Conveying Fluids for Warming Railway and Tramway
Carriages or Vehicles, and for other purposes.
We, JAMES GRESHAM, Director of the Firm of Gresham & Craven Limited,
Craven Iron Works, Salford, Manchester, in the County of Lancaster, Engineer,
and HARRY EDWARD GRESHAM of the same place, Engineer, do hereby declare
the nature of this invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
1. Our invention relates to couplings for hose pipes used for conveying heating
fluids between railway and tramway vehicles which couplings are also applicable
for coupling pipes subject to internal pressure, used for other purposes.
Our present invention is for improvements upon or for a modification of the hose
pipe coupling described in the Complete Specification of Letters Patent granted to
us numbered 751 of the year 1894, and illustrated more particularly by Figs. 5, 6, 7
and 8 of the drawings accompanying the said Complete Specification.
The two halves or parts forming the complete coupling when united are each exact
duplicates one of the other, but when they come together one forms a right and the
other a left hand coupling..
Each half coupling is a tubular casting of the desired shape to one end of which
the hose pipe is attached, the bore at that end where the two half couplings come
together is by preference recessed and screw tapped for a bush screwed on its
exterior having a head upon which the india-rubber packing or facing ring having
flanges is placed, then by means of slight projections on the interior bore of the
screwed bush it can by a suitable instrument, be screwed into the screw tapped bore
and the india-rubber ring is thus secured in a recess in the bore of the casting
between a shoulder on the head of the bush and the bottom of the recess in the
casting for the india-rubber ring, the external face of which extends a little beyond
that face of the casting, the faces of which come opposite to each other, when the
two parts of the coupling are united.
There is an internal groove in the head in which fluid pressure can enter and
pass through a series of holes in the flange, head of the bush so as to come
against the back of the outward lip of the ring of india-rubber and force it
outwards, and its outer face against the outer face of the corresponding ring in the
other half coupling when the two parts are united together.
From one side of the casting for each half coupling there is a projecting arm
having a hook, and on the under edge of which projecting arm and hook, there
is a V groove formed, which will catch and hold upon a bevelled edged projection
one on each half coupling, on the other side of the casting which
for the projecting arm.
opposite to that
When the two halves of the coupling are brought together with the face or
junction end of each opposite to the other, the projecting hook arm of one half
reciprocally catches or hooks upon the projection for it upon the other half
coupling.
When the two halves of the coupling are united, the hooks upon the projecting
arms from each are in a vertical plane and the lengthway of the projecting arm is
horizontal.
The weight of the couplings when united in the position described brings slight
projections from the upper face of each half coupling casting, one against the
other, and these slight projections keep the junction faces about parallel with each
other

page_text: The projecting hook arms and the corresponding projections for them serve to
hold the two half couplings when united from drawing apart and uncoupling,
and the weight of the half couplings when united does not and is not intended
to act to press the india-rubber facing rings together in order to make a fluid
tight joint between the rings (as in the facings of couplings hereinafter referred to)
as this object is effected by our improvements, by the pressure of the fluid within
the bore of the couplings which acts to keep the lips of the india-rubber rings
firmly against each other with a pressure increasing with the pressure of the fluid to
be resisted, thus making a perfectly automatic fluid tight joint, not requiring any
arrangements to draw the half couplings firmly together.
Our improved couplings therefore do not require to be made heavy in order to
get a tight joint as in other couplings named below..
In the side of the casting for each half coupling there is or may be a screw
tapped hole for any suitable valve which will automatically open when pressure in
the bore of the hose pipe ceases, which valve when open will allow condensed steam
or liquid to drain away, the valve closing again when pressure comes again into the
hose pipe.
2. This part of our invention consists in arranging our improved hose pipe
couplings as above described, so that they may be united to and combined with hose
pipe couplings well known as "Sewalls" or "Golds" hose pipe couplings (described
respectively in Specifications of Patents No. 7510 of 1887 and No. 17139 of 1891)-
in order that vehicles having a "Sewall" or a "Gold" coupling may be coupled
up with vehicles having our improved couplings-this part of our invention consisting
in arranging one half of our improved coupling so that it may be united to and
combined with half couplings of the "Sewall' or "Gold" type or like types of
coupling.
Both these types of couplings require to be made heavy and with projections
having inclines that act as cams or wedges to draw and press the two faces which
form the joint together by the weight of the couplings when united, which damages
the joints.
"
The projecting book arms of our improved half couplings when made for each
other are also suitable to hook upon the projections or pulleys of the "Sewall
or "Gold" coupling or couplings of like type and the projections upon our
improved couplings for the hook arms are made not only to suit the hooks of our
own couplings but those of the "Sewall" or "Gold" couplings or couplings of like
type.
Fig. 1, is a longitudinal section of two halves of our improved hose pipe coupling
when united together, each half coupling containing an elastic automatic fluid tight
junction ring.
Fig. 2, is a plan view of the united half couplings shown by Fig. 1, and in this
Fig. 2, a ball valve is shown in section.
Figs. 3 and 4, and Figs. 5 and 6 are respectively views similar to Figs. 1 and 2,
Figs. 3 and 4, showing one of our improved half couplings united to one half of a
"Gold" coupling, and Figs. 5 and 6, showing one half of our improved couplings
united to a "Sewall" coupling.
Figs. 7 and 8 and Figs. 9 and 10, are respectively views corresponding to Figs. 1
and 2, but showing our elastic automatic junction rings, combined in Figs. 7 and 8,
with a "Gold" coupling and in Figs. 9 and 10 with a "Sewall" coupling.
Fig. 1, is an outside elevation, Fig. 12, a plan section, and Fig. 13, a cross section
through the metal ring carrying our improved automatic junction ring as when
applied to the "Westinghouse" hose pipe coupling.
Fig. 14, is an outside elevation or side view of one half coupling in the position
when united together, the tube part for the hose pipe of the other half coupling
only being shown.
Fig. 15, is a plan section of the half couplings as when united together.
Fig. 16, is a vertical section on the line A-B Fig. 15, and Fig. 17, is an outside
elevation of one of the cone plug cocks detached-these Figures 14, 15, 16 and 17

page_text: ustrating another modification of our invention as applied to the
type of hose pipe couplings.
Westinghouse
Fig. 18, is a section through a hose pipe coupling for heating trains of vehicles
where there is an outflow and return line of pipes for conveying the heating fluid
requiring two pipes to be coupled between each vehicle.
The figures Fig. 1^, Fig. 3ª, Fig. 5ª, Fig. 7 and Fig. 94, are cross sections in
each case through the metal ring or flange carrying our improved elastic automatic.
junction ring.
Figs. 1 and 2, illustrate one combination of our invention.
Each half coupling in this and all other hose pipe couplings consists of a tube..
the bent part a', at an angle to the tubular part a, the ends of which carry the
elastic junction rings which come together when the two half couplings are united.
with each other.
It is to the bent tube a', that the flexible or hose pipe (not shown) is connected in.
the usual manner.
There is a side arm or projection a*, from one side that has a hook recess formed
in its side that takes hold of the projection a³, for it on the other half coupling
when they are brought together as shown in Figs. 1 and 2.
The end of the side arm at, has a V groove a', formed in it, and when the
half couplings are properly brought together, and pushed towards each other, each.
V groove a', at the end of the arms a, comes against a wedge shaped edge a,.
corresponding to the V groove, and slides up the incline having the wedge shaped
edge upon it (which is on that side of the projection a³, nearest the hook end of the
arm as, when being coupled) until the hook end of the arm a, passes over the other
side of the projection a, as shown in Figs. 1 and 2.
.
By this means it is quite easy to bring the two half couplings together by a.
simple push of the two towards each other, as they are thus guided to their correct
positions when properly coupled, and they are separated or uncoupled by lifting
them upwards at an angle to each other, so as to release the book cuds of the
arms at, from the projections a³.
When the couplings are connected as shown in Figs. 1and 2, the weight of the
couplings and connected hose pipes will bring strain tending to withdraw the lower
faces of the half couplings from each other and compress their upper faces together,.
and there are slight projections on the upper sides of the metal on a line with the
facings of the clastic junction rings b, which come together, and these slight.
projections keep the facings of the elastic junction ring parallel to each other. In
the bore of each half coupling a, there is a tubular bush 6, which screws into the
bore, this bush has a head which has an internal circular groove b³, in it, into which
fluid pressure can enter and pass through a series of holes &, between the groove
and the outer face of the head of the tubular bush b', (see Fig. 1A). The elastic.
junction ring b, is cylindrical in form with two flanges one at each edge extending
inwards, but the outer flange is broader than the inner one.
This elastic ring b, is first placed on the head of the screw bush b', which is then.
screwed into the bore by a tool fitting the bore of the bush but having two grooves.
in its exterior periphery for projections &, formed on opposite sides of the interior
of the screw bush 6, by this means the bush can be readily screwed in or out.
When screwed home, the inner flange of the elastic junction ring b, is held
firmly and fluid tight within the bore of each half coupling a, and no fluid can
escape as the two faces or lips of the elastic ring b, which come together when the
half couplings are united are held close and against each other by the pressure of
the fluid, getting through the small holes 62, and acting on the back of each flange
or lip of the elastic junction ring b.
Each half coupling has a hole a³, in one side into which a tubular nozzle d, is.
screwed fluid tight as shown in Fig. 2. In this nozzle a ball valve arrangement is
formed.
The large nozzle d, has a smaller tube nozzle d¹, screwed into it which holds in a.
recess a washer d, of india-rubber or other suitable elastic material that forms the

page_text: seating for the ball valve d°,—this seating washer d', has a hole in it opposite that
in the outer tube nozzle d'.
The interior of the large nozzle is recessed to receive a dished part d², of thin
metal, the disc end of the dish part being perforated with fine holes, and the
exterior of the inner part of the large nozzle is prepared to receive a cap or lid of
thin metal d³, the disc part of which is also perforated with fine holes. The cap
part d', keeps the dish part d, in position and prevents the ball from moving too
far from its seating.
When there is fluid pressure in the couplings the ball d³, is held fluid tight
against its seating so that there is no escape of fluid.
But when fluid pressure ceases to exist within the coupling this ball valve d³,
falls away from its seating and any condensed steam or water can escape so that the
hose pipes will be empty of liquid after the internal pressure ceases.
Figs. 3 and 4, show one of our improved half hose pipe couplings as above
described and illustrated by Figs. 1 and 2, united with a half coupling a,
constructed upon what is known as the "Gold" system, in which the junction
ring e, is made of some suitable material which can swivel in a recess formed for it
in the end of the bore of the half coupling.
There is a metal ring or partial ring e, attached to each side of the junction
ring e, and the exterior bent part of this partial metal ring e¹, is a little larger than
the bore of the end of the coupling so that it has to bend slightly to enter the end
of the bore and by this means the junction ring e, is prevented from falling out
when the half couplings are separated and requires a sharp pull when the junction
ring e, is to be removed.
Each half "Gold" coupling has a side arm projection ab, with a cam formed
surface to engage upon a projection a', from the other half coupling and though
the shape of the side arm projection ab, and the projection for it are different in our
improved couplings from the "Gold" coupling they can be reciprocally united if
made of the proper sizes and dimensions.
The faces of the ends of the "Gold" half couplings are not certain to be parallel
to each other when united and the junction rings e, are arranged to swivel to allow
for variations.
Figs. and 6, show one of our improved half couplings united with a
half coupling.
"Sewall"
The junction ring e, of the "Sewall" half coupling is held against the end of the
half coupling by a tube e³, on the exterior of the tube a, forming the bore of the
coupling and this exterior tube e, is secured by a screw union e, on a shoulder or
collar on the coupling. There is a groove in this collar into which a part from
the end of the exterior tube e³, can enter for the purpose of keeping it from
torning.
It is from this exterior tube e³, on one side that the side hook arm aª, extends,
and on which the projection a, for it is formed on the other side of the tube e
The "Gold" and "Sewall" couplings are arranged so that their weight and that
of the connected hose pipe when the half couplings are properly united will act to
draw the facings of their junction rings firmly together against each other, and thus
sufficient force so acting is required to keep the junctions fluid tight against
internal pressure.
But in our improved couplings the junction between the half couplings is made
fluid tight without the necessity (as in “Gold” and “Sewall's" couplings) for the
junction rings being firmly held together against each other as all that is required
in our improved couplings is that the couplings when brought properly together
shall not be able to separate; our improved elastic automatic junction ring b
making the joint fluid tight so that greater pressure of fluid to be resisted and
greater the tightness of the joint of the junction rings b.
Figs. 7, 7 and 8, show our improved elastic junction ring b, applied to a
"Gold"
coupling. These elastic junction rings are arranged and applied to the bores of
each half coupling same as to our improved couplings as shown in Figs. 1 and 2,

page_text: except that the interior bore of the bush tube may be made hexagonal to suit the
sides of a tool or wrench for screwing them in and out.
Figs. 9 and 10, show our improved elastic junction ring b, applied to a "Sewall”
coupling.
The junction ends of the "Sewall" coupling are formed with an internal
flange, in the bore having a series of holes b, through it, and the elastic junction
ring b, is formed with an inner flange forming one of the lips for the junction, and
an outer flange by which the ring is secured to the coupling by the outer tube e³
of the "Sewall" half coupling as hereinbefore described in reference to Figs. 5
and 6.
In the "Westinghouse" coupling (Figs. 11, 12 and 13) the two half couplings f
are brought together sideways so that projections on one half can pass through
notches in the other half coupling reciprocally when brought together at a certain
angle and when turned to a given extent when brought together the parts of cach
half coupling lock upon each other and the act of turning causes the automatic
valve to open (which close when not held back, by a spring) there being a pin in
the stem of each valve that comes against a cam surface and thus draws the valves
away from their seatings when the two half couplings are properly united.
Our improved elastic junction rings b, have two flanges one forming the junction
lip and the other for holding the ring in position by means of a metal washer 6³,
having a series of holes 62, through it to allow the internal fluid pressure to get at
the back of the elastic flange or lip which is to form the fluid tight junction.
This metal washer b', is held firmly against the flange of the elastic junction
ring b, by a tubular part, which is secured and held firmly when the outer cap f³,
is screwed into the side of the half coupling, this cap also forming a guide for the
stem f, of the valve 4, and the abutment for the spring round the stem.
The valve f, is screwed on to the stem f³, for it, and is faced with elastic
material, and when the valve closes, it shuts against the back of the metal washer b¹,
which holds the elastic junction ring b, in position.
The tubular part 1, acting upon the metal washer or ring b', has holes through
its sides to permit fluid to pass from the bore of one half coupling f, to the valve ƒª,
and through it to the other half coupling f
The fact of bringing the two half couplings f, together, will bring the stems
projecting outwards from the valves f4, together, (so that they interlock together)
and the half couplings cannot be properly united until the valves are each pushed
open.
Figs. 14 to 17 inclusive illustrate another modification of our invention applied
to a "Westinghouse" type of hose pipe coupling.
f, is the casing of each half coupling;, the tube part which is connected up to
the hose pipe. This part of the tube may have cord, wound upon it as shown
in Fig. 14, to act as a non-conductor of heat making the couplings more easy 'to
handle when heated.
Each half coupling is a duplicate of the other, therefore only one need be
described.
f, is a cone plug cock which is made to fit fluid tight into the casing f.
Its small end is a cylindrical tube f, for a short length and a part of this part
of the cylindrical tube is cut away so that a corresponding portion of the cylindrical
part of the tube of the cone cock, of the other half coupling can take its
place when the two half couplings are united, the small end of one cone cock thus
interlocking with the small end of the other cone cock, so that when one is partly
rotated the other will also be rotated.
When the cone cock 3, is in its place in the casing f, it is retained therein and.
prevented from rotating too far by the point of a screw, that screws through a
hole in the side of the casing f, and enters a groove fe, in the side of the plug ƒ³,
(see Fig. 16).
When the cone cock 3, is in its place in the casing, a screw plug f', is screwed
fluid tight into the hole for it in the casing.
:

page_text: "
There is a small bole, in the cone cock ƒ³, that communicates with the passage
for fluid within the coupling at one end and with the slight space between the
screw plug, and the end of the cone cock f³, so as to cause the pressure of the
fluid to act to keep the cone cock in its place fluid tight.
In the face of the casing, round the cylindrical end of the cone cock f³, a
recess is formed for the elastic automatic junction ring b, which when in its place
is securely held therein by a metal ring 6', screwing into the recess in the
casing.
There is a slight space between the ends of the screw cocks f³, that come
together, into which fluid pressure from the passage or bore can enter and from
this space there are a series of diagonal holes 6, drilled in the casing that allow the
fluid pressure to get to the back of the automatic junction ring b, so that the lip of
one junction ring in one half coupling is forced against that of the other, to make
astight joint when the two half couplings are properly united together.
Each half coupling has a segmental projecting hook f, and a corresponding
segmental ledge fa, for such a segmental book projection and when the two half
couplings are brought together with their junction faces against each other and
partly rotated these segmental ledges fa, and hook projections, reciprocally
engage with each other and the half couplings are thus held securely together when
in a position indicated in Fig. 14.
The act of bringing the half couplings together, engages one cone cock in one,
with the other in the other half coupling and the act of partial rotation to secure
the two half couplings together at the same time turns the cone cocks so that the
passage through each cone plug is opened as shown in Fig. 15.
In coupling, the cone cocks f³, do not begin to open until the parts holding the
two halves of the coupling together have engaged with each other, but when fully
rotated to the proper position, the cocks are then fully opened. In like manner
the cone cocks do not immediately close at the first part of the turning movement
to uncouple, but are fully closed before the entire turning movement to uncouple
is completed.
In each half coupling there is a valve to allow condensed steam or water to
escape when the pressure ceases to exist in the passage of the coupling. This
valve is formed by a stem fe, that screws into a disc fb, a shoulder on the stem
acting against a metal washer on the stem, holding an elastic indiarubber or other
suitable washer fd, against the disc f".
there
This elastic washer f, forms the facing of the valve against the end of a screw
tube fe, screwing into a hole in the casing f, fluid tight. Round the stem f
is a helical spring f', sufficient to lift the valve when not pressed down, and this
spring comes under the disc fb, at one end and rests on the end of the recess for
the stem and spring at the other end.
The outlet for fluid from the valve opening is past the upper part of the stem
and through small holes f8, in the screw plug fe, on the side of the part which is
drilled out to guide the stem fo, in its movements.
و
There is a cross pin fh, in the outer end of the stem to prevent the valve
from lifting too high. There is or may be a screw tapped hole f', in the end of
each cone cock for a key to screw into to withdraw the plug when required and
for other purposes..
Fig. 18, illustrates a coupling suitable for trains of vehicles where such are
heated by an outflow and return line of pipes requiring two hose pipe couplings
between each vehicle.
9, is a casting having a part g¹, by which it is secured to the end of the vehicle.
In the casting a cone plug cock g³, is formed and fitted, having passages g³ and g*,
as shown.
In the position in which the cone plug cock g³, is shown, there is a free passage
from the train pipe of the vehicle, which is bent at an angle and comes into the
casting 9, at g, and then into a passage 9, in the casting g, which has another
casting 9, screwed into it fluid tight.

page_text: In the casting y, a lever valve g', is placed, having its fulcrum on a cross pin gs.
The valve, is faced by suitable elastic material secured to it.
The lever valve g', has a weighted tail piece gº, sufficient to lift the valve off its
seating when not acted upon by pressure operating to keep it closed thereon. When
there is pressure in the train pipe, and the cone cock g, is in the position shown
the valve g', is held closed as shown in Fig. 18, but when there is practically no
pressure in the train pipe the weighted tail piece g³, lifts the valve g', off its
seating and condensed steam and water can flow away.
When the cone cock g³, is in the position shown in Fig. 18, the hose pipe may be
safely uncoupled without inconvenience and as arranged the cone cock g², must be
placed in such position before the hose pipe can be uncoupled.
There is a recess formed in the casting g, the axis of which forms the bore
leading to the nozzle gb, on the end of the hose pipe.
In the recess an automatic junction ring b, is placed, which ring b, is first placed
on a tube b¹, one end of which screws into the casting g, and this secures the
automatic junction ring 6, fluid tight therein.
This tube 6, has an internal groove b³, that has a series of small holes 62, in it
to allow fluid pressure to get to the back of that flange of the automatic junction
ring b, which is to make the fluid tight joint against the face flange of the nozzle g³,
which is brought and held against it.
The free end of the hose pipe is secured to the nozzle g³.
The end flange of the nozzle go, fits into the recess in the casting (one side of
which recess is undercut) when against the face of the automatic junction ring b.
One side of the flange of the nozzle g°, is curved to a radius struck from the
centre of the cone cock g, and the other when in position is held in the said hook
or under-cut recess.
There is an arm 9º, on the outside end of the cone cock g², which arm g, forms, or
may form a part of the handle gd, that is at one end of the cock to turn and open
and close it.
When the arm 9, is in the position shown in Fig. 18, the nozzle g³, can be
coupled or uncoupled, but when the nozzle gb, is in the position shown, and the
handle 9, of the cock is turned to bring the passage g³, in the cone cock in a line
with the bore of the nozzle gb, then a projection ge, on the arm ge, will pass over
and hook upon the segmental edge on the flange of the nozzle and hold it secure
therein and with its inner face pressed sufficiently close to the face of the
automatic junction ring b.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. The combination of an elastic junction ring with a flange ring (1) having
holes (63) in it, with each half coupling and the combination of the parts of the
coupling together substantially as and for the purpose herein before described and
illustrated by Figs. 1, 14 and 2 of the drawings.
2. The combination and arrangement of a ball valve with half couplings
constructed substantially as and for the purpose herein before described and
illustrated by Fig. 2, of the drawings.
3. The combination and arrangement of couplings substantially as hereinbefore
described and illustrated by Figs. 1, 1 and 2, which half couplings so constructed
will unite with half couplings of the " Gold
or "Sewal!" types, substantially as
and for the purpose hereinbefore described and illustrated by Figs. 3, 3ª and 4,
and Figs. 5, 5 and 6 of the drawings.
"
4. The combination of elastic junction rings with couplings of the "Gold
"Sewall" and "Westinghouse" types, substantially as hereinbefore described and
illustrated by Figs. 7, 7 and 8 Figs. 9, 9 and 10, Figs. 11, 12 and 13 and
Figs. 14, 15, 16 and 17 of the drawings.
5. The combination and arrangement of hose pipe couplings with automatic
B

page_text: junction rings and having cone plug cocks substantially as hereinbefore described
and illustrated by Figs. 14 to 17 inclusive of the drawings.
6. The combination of automatic junction rings with couplings substantially as
hereinbefore described and illustrated by Fig. 18.
7. The combination and arrangement of hose pipe couplings substantially as and
for the purpose hereinbefore described and illustrated by Fig. 18.
Dated this Fifteenth day of January 1896.
PETER J. LIVSEY,
Agent.