Year: 1898

page_text: I, ALDEN LEE BAILEY, of St. Johnsbury, County of Caledonia, and State of
Vermont, United States of America, Merchant, 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 :-
The invention relates to couplings having duplicate interlocking sections. The
object of the invention being, to provide first, a hose coupling, the sections of which
may be quickly connected, second, one which does not require the frequent removal of
gaskets to take up the wear, and third, to provide a coupling which may be
separated under a longitudinal strain.
The invention consists in a coupling composed of duplicate sections and of the
novel construction to be fully set forth in the following specification and claims, and
clearly illustrated in the drawings accompanying and forming a part of the same, of
which,―
Figure 1, is an elevation of one of the duplicate sections of my improved coupling
complete:
Figure 2, being a broken side elevation of the same:
Figure 3, is an end elevation showing a modified form of one section of the
coupling from which the retaining sleeve is removed:
Figure 4, is a side elevation of the modification illustrated in Figure 3:
Figure 5, is an end clevation of one of the retaining sleeves:
And Figure 6, is a vertical section of the same.
Similar reference letters denote corresponding parts.
One section of my improved coupling is an exact counterpart of the other.
A represents either section, and B, are tongues projecting at opposite sides from
the outer end. These tongues are made slightly tapering on their edge as at b, and on
their inner surface as at 61, the latter being tapered to fit the tapered curved surface
of a reduced portion a, of either section A, and when united, the tongues B of one
section fill the spaces between those of the other section. Each section A has an
externally threaded portion a¹ to which is threaded a sleeve C.
Each tongue B has a beveled lateral projection for engaging with the sleeves as
hereinafter explained, and these beveled projections may be formed integral with
the tongues as seen at 6 in Figure 3-4, or they may be formed at one end of a
yielding plate fitted into a recess formed for the purpose in the inner surface of the
ongues, this form being illustrated in Figures 1-2 at b³.
The sleeves C have in their outer end an annular recess c, provided on opposite
ides of its outer edge with an internal flange c¹: And to unite the sections A of
ny improved coupling, the tongues B of either section having a lateral projection 6º
or 63 are brought to a position behind the flanges c¹ of the sleeves, and as the sleeves
evolve only upon the threaded portion a¹ of the sections A the rotation of said

page_text: sleeves bring the gaskets D of the sections into close contact by pulling against the
laterally inclining projections of said tongues.
In the drawings the laterally inclining projections are shown to be beveled on
both sides, and this is essential for the spring actuated projections 6s which must
be beveled on their back side as at 64, and the inner side of the flanges c¹ must be
likewise beveled as at c², so that by applying force in a horizontal direction to
separate the sections A, the free end of the spring plates or arms 65 upon which the
projections 63 are formed will yield inward and permit the said projections to be
crowded downward and under the said flanges of the sleeves C, thus disengaging
one section from the other by force, as would be sometimes necessary if my
improved couplings should be applied to railway hose: Any given strain at which
the coupling may be required to separate, being readily determined or regulated by
the inclination or particular degree of angle given to the surfaces b and c²
respectively of the projections bs and flanges c¹.
It is obvious that the threaded sleeve C when turned to the proper place upon the
section A must be provided with some suitable stop, a convenient means of
providing this being shown in the drawings; the sleeves C are each provided with
a slight groove c³ formed in the shoulder or offset which results from the enlarge-
ment or recess c, and this groove receives a portion of the head of a screw E
threaded to each section as shown,
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a hose coupling composed of duplicate sections, a pair of tapering tongues
arranged at opposite sides of their adjacent ends, the tongues of each section filling
the space between those of the other when united, a laterally inclining projection
at the end of each tongue, and a threaded sleeve fitting the threaded portion of
each section having an internal annular recess adapted to receive the laterally
inclining projection of said tongues, substantially for the purpose set forth.
2. In a hose coupling composed of duplicate sections, a pair of tapering tongues
arranged at opposite sides of their adjacent ends, each tongue being provided at
its end with a laterally inclining projection, an external threaded portion located
back of the tongues of each section, and a threaded sleeve fitting the threaded
portion of each section having an internal annular recess adapted to receive the
laterally inclining projection of said tongues, substantially for the purpose set
forth.
3. A hose coupling composed of duplicate sections having a pair of tapering
tongues arranged at opposite sides of their adjacent ends, having each an internal
longitudinal recess, a yielding bar fitting each of said recesses and secured at one end to
each section and having a laterally inclining projection at its free end, a sleeve
threaded to each section having an internal annular recess adapted to receive the
spring actuated laterally inclining projections of said tongues, substantially for the
purpose set forth.
4. A hose coupling composed of duplicate sections having a pair of tapering
tongues arranged at opposite sides of their adjacent ends, the tongues of each
section being provided with an internal longitudinal recess and being adapted to
close the space between tongues of the other when united, a spring actuated bar
fitting the recess in each tongue provided at its free end with a laterally inclining
projection having an internal annular recess adapted to receive the laterally inclining
projections of said bars and to lock said sections together by a slight rotative
movement.
5. A hose coupling composed of duplicate sections having a pair of tongues
arranged at opposite sides of their adjacent ends, the tongues of each section
filling the spaces between those of the other when united, a lateral spring actuated
projection secured to each tongue and tapered both sides, and a sleeve threaded to
each section having an internal annular recess adapted to receive the spring actuated

page_text: projection of said tongues and to lock said sections together by a slight rotative
movement.
ALLISON BROS.,
Agents for the Applicant.