Improvements in the Connection Fittings or Attachments of Speaking Tubes, Garden and other Hose Pipes, and the like.
Year: 1897

page_text: Improvements in the Connection Fittings or Attachments of Speaking
Tubes, Garden and other Hose Pipes, and the like.
We, WALTER JOHN MAY, and ARTHUR EDWARD PADMORE, trading as May &
Padmore, of Leopold Street, in the City of Birmingham, Manufacturers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to the connection fittings or attachments of flexible pipes,
such as speaking tubes and voice pipes, hose pipes for gases or liquids, and the
like, and has for its object, to make a simple and efficient connection or joint
between two lengths of tubing or between a length of tubing and the fitting to
which it is to be attached, without to previously bind, cement or otherwise pre-
pare the tube eud.
In carrying out the invention in connection with ordinary speaking tubes, in-
teriorly supported by a closely wrapped coil of wire, we take a taper or conical split
ring of flat-sectioned metal with the free ends slightly opened out and this is slipped
over an end of the tube to be connected with the taper part coming inwards and
the part of larger diameter coming outwards, and forming yielding or con-
tracting seating for the connection fitting and which, on being closed, is con-
tracted around or nips the end of the tubing. The means of closing may consist
of a sleeve or ferrule, previously slipped upon the tube, and with the inside being
either plain or coned to the outside of the ring. When the interior coning of this
fitting is drawn over the interior flat and split ring, the latter is gathered in and
made to contract around and grip the tube or pipe, which grip may be enhanced
by roughening, serrating or annularly grooving the inside surface of the ring,
which may be of two or more sections, and when made flat, on its periphery instead
of being coned we propose that the mouth or a part of the bore should be conical
in order to draw the ends or the sections of the seating ring, which may be of
metal, wood, or other suitable material together.
Instead of employing a divided ring, we may employ a plain ferrule with axially
split inner edges, which split parts are contracted by the screwing up of the sleeve
or fitting, or instead of, or in addition to, an exterior ring, we may insert within
the end of tube, an unsplit tubular liner or sleeve, between which and the inner
surface of the outer ring, the material of the tube may be gripped.
In carrying out our invention in connection with water and other hose pipes,
the fittings may be in two parts, one being permanently or attachedly affixed to
the end of one length of tube and consisting of a projecting neck of about the
same diameter as the other length to be connected, whilst the shank part inwards
of the neck, is shouldered and screwed.

page_text: in the Connection rutings or Attachments of Speaking Tubes, &c.
The fitting of the other length consists of a loose sleeve, previously threaded
upon the tube, the end of which to be connected is nearly encircled by a conical
and split or segmental band ring, with the taper end directed inwards, and over
which the ferrule or union sleeve is drawn and screwed home onto the wormed
portion of the other part of the connection, thus closing the split band ring or
shoe around the tube end which in turn is closed onto the neck forced therein,
thus making a sound and efficient joint.
Where two loose lengths of tube are to be connected we may employ_a
double male-screwed middle piece, which engage with the female screwed mouths
of the slipped on ferrules and draw the same together.
Dated this 8th day of Ducambor 1007
Improvements in the Connection Fittings or Attachments of Speaking
Tubes, Garden and other Hose Pipes, and the like,
We, WALTER JOHN MAY, and ARTHUR EDWARD PADMORE, of Leopold Street,
in the City of Birmingham, Manufacturera, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement ;-
This invention relates to the connection fittings or attachments of flexible pipes,
such as speaking tubes and voice pipes, hose pipes for gases or liquids, and the
like, and has for its object, to make a simple and efficient connection or joint
between two lengths of tubing, or between a length of tubing and the fitting to
which it is to be attached, without having to previously bind, cement or otherwise
prepare the tube end.
Figure 1 of the accompanying drawings represents a perspective view of a set
of connection fittings constructed according to one form of our improvements and
more particularly designed for securing the mouth piece of a speaking tube or
voice pipe to the end of a length of flexible tubing or flexible braided tubing,
and by means of which the mouth piece or like fitting is more expeditiously and
efficiently connected to the tube without glueing, braiding or other preparatory
operations. In this view the several parts of the connection are separated to 3
better exemplify the construction.
Figure 2 represents, upon an enlarged scale, a longitudinal vertical section of
this form of connection, with the several parts secured together ready to receive
the mouth piece or other fitting.
Figure 3 is a cross section of Figure 2 upon the dotted line z.
Figure 4 is a like section as Figure 2 but with the parts disconnected.
Figure 5 represents an end view and an elevation of the split and outside coned
ring which is placed upon the end of the tube to which a fitting is to be secured
and is gathered around the same by the act of screwing up the parts.
4
The same letters of reference indicate corresponding parts in the said Figures 14
to 5.
In carrying out this form of our invention the end a¹, of a length a, of voice

page_text: pipe or speaking tubing, which may be "braided" or covered with fabric, is
fitted with a longitudinally split and outside tapered or conical ring b, consisting
either of two separated halves b', 6, as represented, or of a single-split ring and
which, when slipped or placed upon the end of the tube with the part of least
diameter coming inwards and the portion of greatest diameter coming
at the outer end, forms a yielding or contracting seating for the con-
nection fittings and which, on the screwing up of the parts, is contracted
around and caused to nip the end of the tubing. The means of closing may con-
sist of a sleeve or ferrule c, previously slipped upon the tube, with a portion of the
inside being either coned at e¹, as shewn to correspond with the outside of the ring
(or it may be plain) whilst the outermost portion is internally wormed at to
receive the tail end d, of the mouth piece union d, onto the other tail end d', of
which the mouth-piece may screw. When the interior coning of the ferrule G i8
drawn over the split ring, by the screwing of the former home onto the tail,
of the union, the sections of the split bearing ring are gathered in and made to
contract around and grip the tube or pipe, which grip may be enhanced by
roughening, serrating or annularly grooving the inside surface of the ring.
The said ring seating may be made in three or more sections, and further it
may also be made flat, on its periphery instead of being coned, in which case the
mouth or a part of the bore would be conical in order to draw together or gather
in the sections of the seating ring, which may be of metal, wood, or other suitable
material.
If necessary. the interior of the tube end may be provided with a rigid internal
support, preferably in the form of a tail end attached to the union and between
which and the split ring, the material of the tube is clamped or nipped. This
arrangement is represented in Figure 5*.
It is understood that the mouth piece union fitting may be made in two forms
which are respectively represented separately in Figures 6 and 7.
In the fitting represented in Figure 6, the same is made in one piece only and
has a female screwed end to receive the male screwed part of a mouth piece.
This fitting is slipped onto the tube-end prior to the placing around the same of
the split seating sections.
The form of fitting represented separately in Figure 7 is the same as shewn in
Figures 1 to 4, being made in two parts, viz., u ferrule e, and a union d, onto the
screwed male end of which, the female or inside-screwed socket end of a mouth
piece.
Figure 8 is a perspective view representing the application of our invention to
couplings or fittings for connecting together lengths of hose or gas or water pipes.
Figure 9 is another view of this coupling, and represents the several parts of the
same separated.
Figure 10 represents, upon an enlarged scale, a longitudinal vertical section of
Figure 8, and
Figure 11 is a similar sectional view, but with the parts disconnected.
Figure 12 is a cross section of Figure 10 upon the dotted line .rl.
Figure 13 represents an end view and a side elevation of one of the split conical
bearing sleeves employed in this coupling, separately.
In the arrangement represented in the said Figures 8 to 13, e is a male-screwed
middle piece, having double serrated or roughened tail ends e', which respec-
tively take into the opposed ends f¹, 9, of the two lengths of hose or piping f
to be connected together and form internal supports for the same, which said
tube ends are encircled by outside tapered or conical bushes or rings h, h', each
longitudinally split at h, and internally serrated to enhance their grip upon the
tube ends., are the slipped on ferrules, which have female screwed mouths
adapted to be wormed onto the male-screwed middle piece e, in coupling together
the lengths of tubing.
In uniting together two lengths of flexible garden hose or other tubing, the

page_text: ferrules, are first respectively slipped over the tube ends and then the
opposite tail ends of the union or middle piece are introduced into the opposed
ends of the lengths. After the conoidal split bushes or contracting seatings have
been placed round the tubes, the ferrules are then advanced towards one another
and over the seating rings and are respectively screwed onto the male wormed
middle piece from the opposite ends and by the screwing of them fully home, the
split or contracting bearing bushes are gathered in around and made fast to, the
tubes, the material of which is nipped between the bushes and the tail ends
forming the internal supports. The outward ends of the said bushes come against
the opposed faces of the enlarged middle piece or union, which forms an additional
means for preventing them being displaced longitudinally on the screwing
together of the parts of the coupling.
Instead of employing a divided ring we may employ a plain ferrule with longi-
tudinal split inner edges, which split parts are contracted by the screwing up of
the ferrule, sleeve or other fitting, or instead of, or in addition to, an exterior
ring, we may insert within the end of tube, an unsplit tubular liner or sleeve,
between which and the inner surface of the outer ring, the material of the tube
may be gripped.
In carrying out another part of our invention in connection with water and
other hose pipes, the fittings may be in two parts, one being permanently or
attachedly affixed to the end of one length of tube and consisting of a projecting
neck or tail end of about the same diameter as the inside of the other length to be
connected, whilst the shank part inwards of the neck, is shouldered and screwed.
The fitting of the other length consists of a loose sleeve, previously threaded
upon the tube, the end of which to be connected is nearly encircled by a conical
and split or segmental band ring, with the taper end directed inwards, and over
which the ferrule or union sleeve is drawn and screwed home onto the wormed
portion of the other part of the connection, thus closing the split baud ring or
shoe around the tube end which in turn is closed onto the neck forced therein,
thus making a sound and efficient joint.
Where two loose lengths of tube are to be connected we may employ a
double male-screwed middle piece, which engage with the female screwed mouths
of the slipped on ferrules and draw the same together.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
First In the connection fittings or attachments of speaking tubes, garden
hose pipes and the like, employing in connection therewith a split, sectional or
contracting ring, bush or seating, which, by the screwing-up of the fitting is
gathered-in or contracted around the tube end to which the said fittings are to
be secured, substantially as described and set forth.
Secondly: Connection fittings or attachments for speaking tubes, garden hose
and analogous pipes, having a split or sectional contracting bush or seating, or
bushes or seatings, in combination with a union and a screwed ferrule or ferrules
adapted to take upon the union and with the inside bore preferably being
conoidally formed for gathering in or contracting the bushes around the tubes on
the screwing up of the parts, substantially as and for the purpose described and
act forth.
Thirdly: Connection fittings or attachments for speaking tubes, garden hose
and analogous pipes having split or sectional contracting bushes or seatings in
combination with single or double tail-ended unions provided with internal sup-
ports for the tube lengths, and sorewed ferrules or couplings, by the worming of
which onto the union the rings or bushes are gathered in or contracted around
the tube ends and the lengths of tubing are secured to the fittings, substantially
as described and set forth.
Fourthly In fittings for connecting together lengths of hose or other piping,
:

page_text: or for securing mouth pieces or the like to speaking tubes and voico pipes, tho
construction, arrangement and combination of the seatings, unions, and ferrules,
substantially as and for the purpose described and set forth.
WALTER JOHN MAY.
ARTHUR EDWARD PADMORE.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicants.