Hose Couplings.
Year: 1894

page_text: Date of Application, 26th Apr., 1894
Complete Specification Left, 29th Nov., 1894-Accepted, 2nd Mar., 1895
PROVISIONAL SPECIFICATION.
Hose Couplings.
I, LUCIEN POULIN, of No. 450 East Galena Street, Butte City, in the County
of Silver Bow and State of Montana, United States of America, do hereby declare
the nature of this invention to be as follows
--
This invention is designed to provide a certain new and useful improvement in
hose couplings, wherein each section of the hose is provided with a coupling
section of the peculiar construction hereinafter described, such coupling sections
being detachably connected by a grip ring having spring-actuated grips for
engagement with the said coupling sections, means being provided whereby the
said grips may be readily and quickly released from engagement to effect the
uncoupling, their engagement in coupling being automatic upon the proper contact
of the parts.
The two coupling sections are each provided at one end portion with a chamber
to receive the hose end the internal walls of said chambers being formed with
corrugations ridges, threads, or projections for engagement with the hose to secure
the coupling thereon, the extreme end of the hose seating against or in proximity
to an internal annular flange, the flange on the coupling sections nearest the
discharge end of the hose being bevelled to present but slight obstruction to the
flow of water. In this same coupling section is seated a packing ring, against
which screws the end of a threaded flange of the grip ring.
The opposing coupling section has an extension of reduced diameter, said
extension being arranged to pass through the grip ring and partially into the other
coupling.
Formed externally in said extension is a surrounding groove having straight
walls, said groove being designed to receive the spring actuated grips which are
pivoted in and partially seated in an internal groove of the grip ring.
There will usually be two of these grip rings with springs attached thereto and
bearing against the walls of the groove in such a manner as to partially project the
grips from said groove.
The adjacent end portions of the grips are preferably overlapped in such a
manner that the retraction of one will retract the other.
In making the coupling, the grip ring being screwed into the coupling section
in which it is secured, the extension of the opposing section is introduced through
said ring, its passage forcing the grips back into their groove, until the groove in
the said extension comes opposite thereto, when the tension of the springs at
once throws them into engagement with the said groove, and the coupling is
secured.
To uncouple, the grips are retracted by means of a pin or projection secured to
one of the grips and projecting outwardly through an oblong slot in the grip ring.
Or, when the adjacent end portions of the two grips are not overlapped, a suitable
punch may be introduced through an aperture in the grip ring and into contact
with both the said end portions. A pull on said pin or projection, or a push with
the punch, as the case may be, moves the said grips sufficiently to retract them from
engagement with the groove of the extension, and permits the latter to be
withdrawo.

page_text: The grip ring may be readily unscrewed from the coupling section which
carries it.
Dated this 26th day of A neil 1804
· JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
Hose coupings.
I, LUCIEN POULIN, of Number 450 East Galena Street, Butte City, in the
County of Silver Bow, and State of Montana, United States of America Stationary
Engineer, 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 has relation to certain new and useful improvements in hose
couplings, and it consists in the novel construction and combination of parts, all
as hereinafter described and pointed out in the appended claims.
The object of the invention is to provide simple and efficient means of improved
character, whereby a secure joint is effected and the hose may be readily and
quickly coupled and uncoupled.
Referring to the accompanying drawings illustrating the invention, in which:
Fig. 1 is a longitudinal central section through the coupling:
Fig. 2 is a sectional view of the grip ring and grip:
Fig. 3 is a similar view showing a modified form of grip: and
Fig. 4. is a detail of one of the grips, showing bevel.
:-
The letters A, B, and C designate respectively the three parts which comprise
the coupling.
The parts A and B consist of tubular coupling sections carried by the respective
hose sections, the part C being an annular ring or grip which unites the two
sections A and B, and secures the coupling.
The part A has a tubular portion a which receives and secures the hose end,
and which terminates with an inwardly offset surrounding shoulder b. The
forward face of this shoulder is bevelled outwardly to a short straight portion c,
which terminates in an outwardly offset horizontal shoulder d, forward of which
is an internally threaded portion which receives a threaded flange f of the
grip-ring C, a shoulder g of the latter seating upon the forward thickened face of
the said section A. h is a packing upon which the said flange seats.
The inner face of the grip-ring is formed with an annular groove i of considerable
depth, and seated in this groove are two spring-actuated gripsj,j, pivoted at j³, j',
in the walls of said groove and whose springs normally hold them partially
projected within the opening of the ring.
The section B has a portion a' similar to the portion a of the section A, and in
which the hose end is secured.
Forward of the portion a' is a tubular extension D which is reduced in diameter
both internally and externally, forming an inner shoulder k, and an outer shoulder k¹.
The inner face of the extension D is plain, but its outer face is formed with an
annular groovel and with a bevelled end portion m.
The operation is as follows:-
The grip-ring being secured to the section A, to effect the coupling, the
extension of the section B is introduced through said ring its bevelled end
portion m in its passage forcing back into the groove i the grips j, j, until the
groove is reached, when the said grips spring into engagement therewith, and
thereby lock the parts together. The face n of the grip-ring seats closely upon the
:

page_text: shoulder of the section B. To facilitate the introduction of the extension D the
grips j, j, may be bevelled as indicated at p.
The uncoupling is effected as follows:-
The extremities of the shorter arms of the two grips approach to within a short
distance of each other, and have overlapping bevelled inner extremities and
adjacent to the extremity of the longer arm of one of said grips is a slots.
Attached to the said grip is a pin or screw S which projects through this slot. By
the operation of this pin or screw the grips may be retracted into the groove i,
permitting the withdrawal of the section B.
The bearing faces of the grip-ring and of the extension D are ground so that one
part may freely rotate on the other.
In Figure 3 I have shown a modification of the grip-ring wherein the extremities
of the shorter arms of the two grips approach to within a short distance of each
other, and at this point an aperture s is formed through the grip-ring. By inserting
a suitable key or punch in this aperture and pressing it against the said extremities,
the grips are rocked on their pivots and retracted into the groove i.
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 :-
:-
A hose coupling comprising the section A having a threaded seat in its forward
portion, the section B having a tubular extension and formed with an exterior
annular groove, and the grip-ring which detachably unites said sections and which
has a threaded flange designed to engage the said seat in the section A, and an
internal annular groove, and a pair of spring-actuated grips seated in said internal
groove and designed to engage the groove of said tubular extension, all sub-
stantially as herein before described.
Dated this 29th day of November 1894.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.