Improvements in Hose-couplings.
Year: 1899

page_text: Date of Application, 19th July, 1899-Accepted, 2nd Sept., 1899
COMPLETE
SPECIFICATION.
Improvements in Hose-couplings.
I, AUGUST WILHELM BILLMAN, of 35, Master Samuelsgatan, Stockholm, in
the Kingdom of Sweden, Engineer, do hereby declare the nature of this inven-
tion 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 modification of the hose-coupling described in the
Specification of Letters Patent No. 26451897 and has for its object to simplify
the said coupling for the parts actuating the coupling-latches.
The coupling described in the aforesaid patent consists of two lugs projecting
axially and diametrically opposite each other from the head end of each section
or coupling-half, there being in one of said lugs a latch movable tangentially
to the circumference of the coupling sleeve or section, against the rear end of
which latch bears one end of a bell-crank lever fulcrummed on a shaft or pin
parallel to the axis of the sleeve, while its other end is located in an opening
in the sleeve and is forced outward by an elastic ring inserted in the mouth of
the aforesaid sleeve, and the other lug is provided with a recess into which the
latch of the other coupling-half can snap when the two halves are pushed
together.
According to the present invention the bell-crank lever mentioned is replaced
by a spring and the coupling consequently obtaining a smaller number of pro-
jecting parts is not so easily injured or put out of order
In the accompanying drawing a symmetrical hose-coupling arranged accord-
ing to the present invention is shown in which:-
Figure 1 is a side-view with the two halves or sections coupled together;
Figure 2 shows one of the coupling-halves viewed from one end, and
Figure 3 shows a partial section of one of the coupling-halves with the coup-
ling-latch in the position occupied at the moment when the sections of the coup-
ling are being united or disconnected.
a a are the coupling-halves or sections with their lugs b, c, and d is the latch
movable in one of the said halves about tangentially or concentrically to the
circumference of the section.
According to the present invention the said latch is not as in my prior Patent
No. 2645187 operated by a rocking-lever, but directly by means of a spring
which may be a spiral spring f located in the lug, as illustrated in the draw-
ing, or any other spring protected in a similar manner and acting to push the
latch outward, as shown in Figure 2. The latch has a handle e by means of
which it may be withdrawn. g is an aperture in the lug c, in which the latch <
belonging to the other coupling-half will snap when the ends of the two sections
are pushed together.
In order that the latches may readily engage with the corresponding apertures
as the sections of the coupling are united, the ends of the latches should be
bevelled. In disconnecting the sections the handles e of the two latches are
pulled, the latter being consequently withdrawn from engagement so that the
sections of the coupling may be pulled apart.

page_text: 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:-
An improved symmetrical hose-coupling provided with lugs (b, c) projecting
axially and diametrically opposite each other from the head end of cach coup-
ling-half or section (a), and one of said lugs having a latch (d) movable about
tangentially or concentrically to the circumference of the coupling-sleeve or section
and actuated by a spring (f) pushing the latch outward so as to cause it, when
the coupling-halves are forced together, to snap into an aperture (9) arranged in
the corresponding lug (c) of the other coupling-half or section.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.