Improvements in Hose Couplings.
Year: 1891

page_text: Date of Application, 23rd June, 1891-Accepted, 12th Sept., 1891
COMPLETE SPEDULICA LION.
Improvements in Hose Couplings.
I, JAMES GALLOWAY HALLAS, of 25 Walnut Street, Waterbury, New Haven
County, Connecticut, U.S.A., Manufacturer, 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 :-
My invention has for its object to produce a hose coupling which shall be so
constructed as to permit the parts to be drawn from disks of sheet metal. I thus
produce a smoother, more finely finished and more accurately made coupling than
has heretofore been practicable where the parts were formed by casting, the cost of
production moreover, being greatly reduced, and also to produce a flexible sheet
metal coupling sleeve adapted to be used in connection with any of the various hose
couplings now upon the market, which shall be so constructed as to grip the
attaching portion of the coupling, to take a double grip upon the hose itself, that is
to engage it both internally and externally, and furthermore, by means of the
flexibility of the sleeve itself to cause it to conform to inequalities in the hose and
differences in thickness in the opposite sides thereof.
With these ends in view I have devised the simple and novel coupling and
coupling sleeve which I will now describe, referring by numerals to the accompanying
drawing forming part of this Specification, said drawing being a sectional view of
my novel coupling sleeve, and the three parts of a coupling in operative position,
the usual packing washer being omitted, a section of hose being attached at one
end by means of my novel coupling sleeve and the sleeve shown detached at the
opposite end.
The three members of the coupling as a whole are denoted by A, B and C.
Members A and B are provided with rounded screw threads denoted by 1 which
are ordinarily formed by rolling and which adapt said members to be turned into
the ends of the hose in the usual manner, the elasticity of the hose causing the
material thereof to press into and fill the depressions in the rounded threads thereby
effecting a very strong and perfectly water-tight connection and one that can be
made at any time by any person and without tools other than a suitable key adapted
to engage polygonal portions 2 at the inner ends of the members. The disks are
cupped and drawn in the usual manner. After member A, the male member, has
been drawn to the diameter required for the coupling portion before the threads
are formed, the inner end of the member is reduced and elongated by additional
drawing operations leaving a shoulder as at 3. The outer end of the shell is then
upset end wise which shortens that portion and forms an outwardly projecting
looped or doubled flange denoted by 4, after which thread 1 and a thread 5, which
is engaged by member C are formed. The inner end of the member is formed to
polygonal shape as clearly shown to adapt it to be engaged by a key, and the
bottom is punched out leaving a polygonal opening through which the end of the
key may be passed in setting the member to place. At the opposite end of this
member the metal is turned inward to form a flange 6 against which the usual
packing washer, not shown in the drawing, rests in use. In forming member B,
Hange 4, the coupling thread and flange 6 are dispensed with, an outwardly turned
flange 7 being formed at the outer end of the part which is engaged by member C
is will presently be explained and between which and flange 6 the packing washer,
hot shown, rests in use. A polygonal portion 2 is formed at the inner end of this
member and the bottom of the cup is punched out precisely the same as in forming
nember A. Member C is provided with a thread 8 which engages the coupling
hread 5 on part A, with an outwardly turned flange 9 which in the coupled
position rests against flange 4 and with an inwardly turned flange 10 which engages

page_text: flange 7 on member B. In practice flange 10 on part C is formed by upsetting the
metal endwise before the bottom of the cup is punched out so as to make in fact a
flange 4 the same as on member A, thereby giving a very much neater and more
attractive appearance to the coupling. The operation of attachment to hose is as
follows: The key, not shown, is passed through member A from the outer end
until the polygonal opening is firmly engaged. The member is then turned to its
position in the end of hose by the key. Member B is turned to place in the same
manner, the key in this instance passing through both parts C and B from the
outer end.
D denotes my novel coupling sleeve which is made of sheet metal and is in fact
a double sleeve, the outer sleeve being denoted by 11 and the inner sleeve by 12.
The outer sleeve is provided with circular or spiral internal ribs 13. At the outer
end of the sleeve the metal is turned inward horizontally, forming a surface 14
which is adapted to abut against the flange 4 on either part of the coupling and is
then turned parallel with the outer sleeve to form the inner sleeve which is made
shorter than the outer sleeve and is provided with a rolled thread 15 which is
adapted to engage the thread 1 on either part of the coupling. In use, the operator
simply slips the coupling sleeve over the end of hose taking care to see that the
end of hose is cut square and is firmly seated against the inner side of surface 14
and then by means of a suitable key turn the part of the coupling into place, the
thread of the coupling engaging thread 15 on the inner sleeve. It is of course well
known by all who have ever handled the ordinary hose of commerce that various
inequalities occur in the same length of hose and that opposite sides of the hose are
rarely of the same thickness. This is fully compensated for in my novel coupling
sleeve by making the sleeve from metal having sufficient flexibility to yield readily
when the part of the coupling is turned into place. The effect of screwing the.
coupling to place after the coupling sleeve is in position is to give a strong, double
grip upon the hose the thread 1 of the coupling taking hold of the interior of the
hose but without breaking the lining and expanding it outward forcing the exterior
of the hose into the spaces between ribs 13 on the outer sleeve and also forcing the
coupling sleeve to adapt itself to the inequalities of the hose. It should be noticed
furthermore that in addition to the hold which thread 1 of the coupling takes upon
the interior of the hose it also takes a firm hold upon thread 15 on the inner sleeve,
this thread being of course rolled to the same shape and pitch as thread 1. I have
found in practice that the use of my novel coupling sleeve dispenses entirely with
the ordinary clamps, wires etc., in common use, insures a water-tight coupling of
great durability, which will remain firmly in place without repair, and which,
moreover, may be readily removed if required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. A three-part hose coupling all the parts of which are formed from sheet metal
and consisting of a male member A, having a threaded coupling end with an inturned
flange, a member B having an outwardly turned flange at its coupling end, and a
threaded sleeve C joining the said members A and B, the parts, when assembled,
having a washer-receiving space between the said flanges.
2. A three-part hose coupling all the parts of which are formed from sheet
metal and consisting of a male member A having a threaded coupling end with an
inturned flange and having also an outwardly extending looped or doubled flange 4,
a member B having an outwardly turned flange at its coupling end, and a threaded
sleeve C joining the said members A and B, substantially as set forth.
3. A flexible sheet metal coupling sleeve consisting of an outer sleeve and an
immer sleeve which are adapted to receive the hose between them, the end of the
hose abutting against the surface between said sleeves, the inner sleeve being
provided with a thread to correspond with the ordinary attaching thread of a
coupling and the outer sleeve being provided with inwardly extending ribs between

page_text: which the exterior of the hose is forced when the coupling is turned to place,
thereby giving a firm grip upon the inner and outer sides of the hose.
4. A flexible sheet metal coupling sleeve consisting of an outer sleeve and an
inner sleeve between which the end of hose is received in use, the inner sleeve
being provided with a thread corresponding with the ordinary attaching thread of a
coupling so that when the coupling is turned to place the hose is clamped firmly
between said inner and outer sleeves.
5. The combination with the members of a hose coupling and a sleeve by which
they are connected said members having rounded threads to engage ends of hose,
of flexible coupling sleeves D consisting of inner and outer sleeves which are
adapted to receive the hose between them, each inner sleeve being provided with a
thread to correspond with the threads upon the members so that in use the hose is
clamped firmly between the outer sleeves and the inner sleeves and the coupling
members substantially as described.
6. The process of forming members of hose couplings which consists in drawing
shells from disks of metal to suitable shape and size, upsetting the metal of the
shells end wise to form outwardly projecting flanges, and forming suitable engaging
threads, substantially as described.
7. The process of forming members of hose couplings which consists in drawing
shells from disks of metal to suitable shape and size, upsetting the metal of the
shells end wise to form outwardly projecting flanges, turning the metal at the open
ends of the shells to form flanges, and forming suitable engaging threads upon
the shells, and angular openings at the closed ends of the shells, for the purpose
set forth.
8. The process of forming the male member of hose couplings which consists in
drawing a shell from a disk of metal to cup-shape, elongating the closed end of the
shell leaving a shoulder, upsetting the metal endwise to form an outwardly
projecting flange at the shoulder, forming rounded threads upon the longer portion
of the member to engage hose, and threads upon the shorter portion to engage a
sleeve, and cutting an angular opening at the closed end, as and for the purpose
set forth.
9. The process of forming the male member of hose couplings, which consists in
drawing a shell from a disk of metal to cup-shape, elongating the closed end of
the shell leaving a shoulder, upsetting the metal endwise to form an outwardly
projecting flange at the shoulder, turning in the open end of the shell to form a
seat for a packing washer, forming rounded threads upon the longer portion of
the member to engage hose, and threads upon the shorter portion to engage a
sleeve, and cutting an angular opening at the closed end for engagement by a key
in turning the member to place.
Dated this 25th day of May 1891.
HERBERT J. ALLISON,
Agent for the Applicant.