AN IMPROVED COUPLING OR JOINT FOR HOSE AND OTHER SIMILAR PIPES
Year: 1878

page_text: LETTERS PATENT to John Guy Wilson, of the City of Manchester, Mechanical
Engineer and Patent Agent, for the Invention of "AN IMPROVED COUPLING
OR JOINT FOR HOSE AND OTHER SIMILAR PIPES." A communication from
abroad by James Grether, of the Firm of Grether & Company, of Friburg,
Baden, in the Empire of Germany.
Sealed the 27th September 1878, and dated the 30th March 1878.
PROVISIONAL SPECIFICATION left by the said John Guy Wilson at the
Office of the Commissioners of Patents on the 30th March 1878.
JOHN GUY WILSON, of the City of Manchester, Mechanical Engineer and Patent
Agent. "AN IMPROVED COUPLING OR JOINT FOR HOSE AND OTHER SIMILAR
PIPES." A communication from abroad by James Grether, of the Firm of Grether
& Company, of Friburg, Baden, in the Empire of Germany.
The object of this Invention is to produce a joint or coupling for hose and other
similar pipes, which shall be capable of being more easily and rapidly coupled or
uncoupled than obtains in existing apparatus for the same purpose, which shall be
better protected against damage from either abrasion or the effects of sand or dirt,
and which shall obviate the great objection which exists to each end of a hose or
other pipe being provided with a different form or part of the coupling apparatus ;
for instance, one end having the male part and the other the female part of the joint
affixed to it, as heretofore.
Now this Invention consists in securing what may be termed a flanged head
piece at the extremity of each length of hose or other pipe requiring to be jointed
or connected. Upon this head piece and behind the flange is mounted a loose
collar, the outside of which loose collar is screwed with a fine screw thread, and the
rear estremity provided with a milled or other suitable rim, or with suitable pro-
jections capable of being firmly gripped either by the hand or by a suitable key or
lever. Screwed upon this loose collar is a nut provided at the front with two or more
projecting hooks or claws..

page_text: Each end of every length of hose or other pipe being thus exactly similarly fitted,
the coupling of two such lengths may be described as follows:-The operator taking
hold of two such lengths of pipe, one in cach hand, and bringing the two nuts
together, causes the projecting hooks or claws to interlock into each other, su prac-
tically constituting a single nut, and then by turning the loose collars in contrary 5
directions the two flanges are brought close together, and can be squeezed together
by continuing the screwing action to any desired extent, so completing the coupling
operation.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Guy Wilson in the Great Seal Patent Office on the 30th September
1878.
86
JOHN GUY WILSON, of the City of Manchester, Mechanical Engineer and Patent
Agent. AN IMPROVED COUPLING OR JOINT FOR HOSE AND OTHER SIMILAR
PIPES." A communication from abroad by James Grether, of the Firm of Grether
and Company, of Friburg, Baden, in the Empire of Germany.
The object of this Invention is to produce a joint or coupling for hose and other
similar pipes, which shall be capable of being more easily and rapily coupled or
uncoupled than obtains in existing apparatus for the sane purpose, which shall be
better protected against damage from either abrasion or the effects of sand or dirt,
and which shall obviate the great objection which exists to each end of a hose or
other pipe being provided with a different form or part of the coupling apparatus;
for instance, one end having the male part, and the other the female part of the
joint affixed to it, as heretofore.
And in order that the nature of the said Invention may be the more readily
understood and carried into practical effect, I have hereunto annexed a Drawing of
a hose coupling constructed in accordance with the said Invention, Fig. 1 being a
side sectional view; and Fig. 2, a side exterior view of the same; and Fig. 3, an
end or front view of the left-hand part of the same coupling, all drawn about full
size.
Similar letters marked on the several views are used to indicate similar
parts.
In all the views a and a¹ are metallic head pieces, provided with flanges A and
A', and which head pieces are secured in the ordinary manner to the extremity of
each length of hose or other pipe requiring to be jointed or connected together.
The faces of the flanges A and A' have annular grooves turned in them for the
reception of the india-rubber or leather packing rings b and b' to ensure a tight
joint being produced when the two head pieces are screwed together, as herein-after
described. Upon each of these head pieces and behind its flange is mounted a loose collar
or sleeve (marked respectively B and B'), which has a screw thread formed, as illus-
trated, upon its outside, and at its rear extremity is provided with a milled or other

page_text: suitable rim c and c¹; or may be there provided with suitable projections capable of
being firmly gripped by the hand of the operator, or by a suitable key or lever.
and dare nuts screwed to fit upon the screw thread of their respective loose
collars B and B', and each provided at the front with three or more projecting hooks
or claws marked e and e¹.
It will be observed by reference to the Drawing that the hooks or claws e of the
ono nut & interlock with the fellow hooks or claws e¹ of the other nut d', and thus
effect a junction of the two together, and form practically a single nut.
Each extremity of every length of hose or other pipe requiring to be connected
together being thus exactly similarly fitted, and such fittings being exact counter-
parts of one another, the coupling of two such lengths of piping may be described
as follows: The operator taking hold of one of such lengths in each hand, and
bringing the two nuts d and together, first causes the hooks or claws e and
e to lock together, so practically constituting a single nut. By then turning
the loose collars B and B in contrary directions, say, in the direction of the arrows,
he causes the front extremities of such loose collars to press against the back of the
flanges A and A'; and by continuing the screwing operation such flanges become
pressed together to any desired extent, so completing the coupling operation.
To uncouple, it is only necessary to turn the loose collars B and B¹ in the reverse
direction to the arrows, when the hooks or claws e and e¹ will become unlocked
again, so leaving the lengths of pipe free to fall asunder.
It is preferred to construct the screw thread upon the loose collars to correspond
with the screw threads of gas or water pipes of standard sizes, so as not only to
facilitate a connection with ordinary gas or water piping, but also to establish a
uniform standard of sizes for the improved coupling.
A modification of this Invention can be constructed without the loose collars by dis-
pensing with screw threads, and filling the nut portions d and d to slide direct upon
the outside of the head pieces "a" and "a'," and thus by introducing a spiral or other
suitable spring of sufficient strength betwixt the back of the flanges A and A', and
a shoulder formed on the inside of the nuts, which would be proportionately
lengthened accordingly, a spring coupling is produced in accordance with this
Invention, useful for connecting the flexible tubing employed in railway vacuum
breakes, and for other analagous purposes.
Having thus particularly described and ascertained the nature of the said Inven-
tion, together with the best methods with which I am acquainted for carrying the
same into practical effect, I wish it to be distinctly understood that I do not confine
myself to the precise details, relative proportions, or dimensions of the various parts
of the improved coupling, herein-before described, and illustrated on the accompanying
Drawing, as the same may be considerably varied without departing from the
Invention; but what I claim is, constructing couplings for hose or other pipes in
two parts or halves, which are identical and counterparts one of the other, substan-
tially as and for the purposes herein-before described, and illustrated in the accom-
panying Drawing.
In witness whereof, I, the said John Guy Wilson, have hereunto set my hand
and seal, this Twenty-eighth day of September, in the year of our Lord One