Improvements in Couplings for Hose Pipes.
Year: 1891

page_text: Date of Application, 27th July, 1891
Complete Specification Left, 13th Apr., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Couplings for Hose Pipes.
I, ROBERT WATKINSON, of Gore Street, New Bailey Street, Salford, in the
County of Lancaster, Brass-founder, do hereby declare the nature of this invention
to be as follows: --
This invention relates to that class of coupling in which the two parts are
connected together by spring bolts or the like in one, engaging with a rim or
flange on the other. As hitherto constructed it is necessary for the fireman to
apply both hands to one part of the coupling in order to disconnect it. This
invention is designed with the object of so constructing the coupling that it may
be disconnected while one part is held in one hand and the other part held in
the other.
In carrying out the invention I at present prefer to allow the two bolts to slide
in and out at right angles to the axis of the coupling in the ordinary way and
form on the flange on the spigot end of the other part of the coupling an
inclined slide or its equivalent over which when sufficient force is applied the
bolts may be drawn. This inclined slide may be placed either so that the bolts
will be forced back when the force is applied longitudinally or angularly. When
the inclined side is cut or cast into the flange I prefer also to arrange at either
side of it a cam or second slide over which the end of the bolt must pass before
it can be drawn up the incline. When the bolt has passed over one of these
cams it is then between the two and cannot be turned back again until the
couplings have been drawn asunder and re-locked. By this arrangement the
fireman can at once tell when the bolts are opposite the inclines over which they
can be drawn to disconnect the couplings.
Instead of an inclined cut or cast in the flange at the end of the spigot of
the coupling' an inclined piece or cam may be cast in the groove behind the
flange with its top level with the flange by which the bolt may be lifted by an
angular movement of the parts and the parts then drawn asunder and dis-
connected.
It will be understood that there is provided one incline in the flange for each
of the spring bolts on the other part of the coupling so that both bolts are
forced back at the same time.
The spindle of the bolt moves to and fro in a projecting hollow arm at the
side of the coupling and it is prevented passing too far into the inside of the
coupling by a small shoulder or collar upon it. A spiral spring surrounds
the spindle and the end of the spindle fits into a hollow cap which is screwed
into the end of the hollow spindle and which also holds the swivel in place on
the end of the projecting arm.
Dated this 25th day of July 1891
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Couplings for Hose Pipes.
I, ROBERT WATKINSON, of Gore Street, New Bailey Street, Salford, in the
County of Lancaster, Brassfounder, 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 :-
This invention relates to that class of coupling in which the two parts are connected
together by spring bolts or the like in one, engaging with a rim or flange on the
other. As hitherto constructed it is necessary for the fireman to apply both hands
to one part of the coupling in order to disconnect it. This invention is designed
with the object of so constructing the coupling that it may be disconnected while
one part is held in one hand, and the other part held in the other.
It consists essentially in constructing the internal socket with inclines over which
the spring bolts can be drawn when the two parts of the coupling are rotated
relatively to each other and then drawn asunder.
It will be fully described with reference to the annexed drawings.
Fig. 1. front elevation of hose coupling constructed according to my invention.
Fig. 2. sectional elevation.
Fig. 3. side elevation partly in section.
Fig. 4. plan.
Fig. 5. part elevation.
Fig. 6. perspective view with the internal socket removed from the other.
The outer part or socket A of the coupling is constructed to receive the end of
the inner part or socket B in the usual way in this class of coupling, the outer
socket A being fitted with the spring bolts or catches C, and the inner socket with
an annular flange D with which the spring bolts engage. The two spring bolts or
catches C are preferably fitted to slide in and out at right angles to the longitudinal
axis of the coupling.
On the annular flange D of the internal socket B of the coupling 1 form an
inclined slide or cam E or its equivalent, over which, when sufficient force
applied, the spring bolts C may be drawn and the coupling disconnected. The
inclined slide or can may, as I prefer, be placed as shown in the drawing so that
the bolts will be pushed back thereby when the force is applied in the direction of
the longitudinal axis of the coupling, or the incline may be placed at right angles
thereto with a flat top so that an angular movement will force the bolts back.
When the cam or incline E is cut in the annular flange D as shown I arrange at
either side of it a cam or second incline e over which the spring bolt C must pass
before it can be drawn up the incline E to disconnect the coupling. When the
bolt C has been passed over one of the cams e it is then between two-one at each
side of the incline E-and cannot be turned back until the coupling has been dis-
connected. These cams e serve to offer some resistance to the turning of the
spring bolts C opposite to the inclines E and when the spring bolts have passed
over them, the fireman can at once tell that the spring bolts are opposite the
inclines E over which they can be drawn to disconnect the coupling.
Instead of an incline cut in the annular flange D an inclined piece or cam may
be placed in the grooved which surrounds the annular flange with its top level with
the top of the flange by which the spring bolts C may be lifted or forced out by an
angular movement of the parts of the coupling and the parts then disconnected or
drawn asunder.
In each coupling there are two spring bolts C and two corresponding inclines E.
The spindle c of each spring bolt C moves to and fro in a projecting hollow arm F
at the side of the coupling, and it is prevented passing too far into the inside of the
coupling by a small shoulder or collar upon it. A spiral spring surrounds the
spindle and the end of the spindle fits into a hollow cap G which is screwed into

page_text: the end of the hollow arm F. The cap G also holds the swivel H in place on the
end of the projecting arm F.
A swivel J may be attached to the ends of one or both sockets preferably to the
inner socket B as shown so that any twist in the hose can be removed without the
coupling being turned.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
(1) In a hose pipe coupling the combination with the annular flange with which
the spring bolts engage of a cam or incline by which the bolts will be pressed back
when forced against it substantially as and for the purpose described.
(2) A coupling for hose pipes constructed substantially as described and shown.
Dated this 12th day of Anril 1892
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.