An Interchangeable Coupling for Flexible Hose or Tube.
Year: 1888

page_text: Date of Application, 11th Sept., 1888
Complete Specification Left, 11th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
An Interchangeable Coupling for Flexible Hose or Tube.
I, EDWARD NUNAN, of 166 Fleet Street, London, Gentleman, do hereby declare the
nature of this invention to be as follows:-
--
This invention relates to a certain detail improvement upon a previous Patent
granted to me on the 11th day of April 1885 No. 4503.
In the Specification of said Patent I described the employment of lugs on the body
of each half coupling, said lugs having lips to engage under or against inclined ribs,
so that by a screw round action after the two half couplings were placed together, the
lips and ribs engage and form a watertight joint.
Now by my present invention, I arrange the lugs, the lips, and the inclines, upon
rings, which fit loosely upon the body of each half coupling, so that the two half bodies
of the coupling are simply placed with the rubber or other ring cushions in contact,
the rings being then turned to tighten them up.
Dated this 11th day of September 1888.
H. GARDNER,
166, Fleet Street, London, Agent for the said Edward Nunan.
COMPLETE SPECIFICATION.
An Interchangeable Coupling for Flexible Hose or Tube.
I, EDWARD NUNAN, of 166 Fleet Street, London, Gentleman, 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 a certain detail improvement upon a previous Patent
granted to ine on the 11th day of April 1885, No. 4503.
In the Specification of said Patent, I described the employment of lugs on the body
of each half coupling, said lugs having lips to engage under or against inclined ribs,
so that by a screw round action after the two half couplings were placed together, the
lips and ribs engage and form a water tight joint.
Now by my present invention, I arrange the lugs, the lips, and the inclines upon
rings which fit loosely upon the body of each half coupling, so that the two half bodies
of the coupling are simply placed with the rubber or other ring cushions in contact,
the rings being then turned to tighten them up.
The annexed drawings show my invention.
Figure 1 shows the two half couplings coupled up.
Figure 2 represents the two half couplings apart, the lower half coupling being in
half section.
B is a
A is the tube to which the hose is bound on by wire in the usual manner.
ring held between a shoulder and a flange D between which the ring B has free
motion for turning purposes. The rings Figures 1, 2, and 3 have two lugs E E, and
at Figures 4, 5, and 6, they each have three lugs E, which when the two half couplings
are placed together, the lips F of the lugs pass through slots G and take on to inclines
of projecting ribs H, so that when said lugs are turned in opposite directions, the joint
comes tight.
I bush each half coupling with a packing ring I which by the lips F riding upon
the inclines of H become compressed and form a watertight joint and will resist great
pressure, such as in the hose of a Fire Engine, or pressure from a strong head of
water.

page_text: Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is :-
1. The construction of hose coupling with lugged rings B, B, having a free motion
upon the tube A for locking the two half couplings together, as described.
2. The construction of hose coupling, each half coupling having a ring with lugs
and fitted between two flanges of the coupling, as described.
The 11th day of June 1889
H. GARDNER,
166, Fleet Street, London, Agent for the said E. Nunan.