Improvements in Cocks, applicable also to Pipe Joints.
Year: 1890

page_text: Date of Application, 16th Dec., 1890-Accepted, 7th Mar.,, 1891
COMPLETE SPECIFICATION.
;
Improvements in Cocks, applicable also to Pipe Joints.
I, Mrs. ADELHAID: CAROLINE VOSS neé Senne of Grönnegade 7, Copenhagen,
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 follow-
ing statement.:—
The improved cock herein described is distinguished from cocks hitherto used by
being of a more solid construction and is therefore not so easily put out of order.
Besides this, it is especially well adapted for use, and it prevents hammering in the
water pipes, because it causes a less quick back flow of water when suddenly shut
off, than is the case in cocks hitherto used. Lastly, it is less liable to be injured
by frost. It may be used as an ordinary cock or as a joint between the cock and
the main.
In the accompanying drawings such a cock or joint is shown in its open
position.
Figure 1 is a front view, Figure 2 a vertical section (on the line x-x in Figures 1
and 3) and Figure 3 a cross section (on the line y-y in Figures 1 and 2);
Figure 4 shows the cock to a smaller scale, used as a joint with an outlet pipe A
which again carries an ordinary cock H.
Contrary to the usual practice the cock plug a is attached to the main by
means of the socket n and the shell e is free to turn on the plug.
For this reason
the plug is hollow or tubular and provided with outlet holes 6 on one side. The
shell is provided either with an outlet socket u or with a nozzle (shown in dotted
lines in the drawing) and leaves a space round the plug a for the packing f, which
may be held above and below by caoutchouc rings t. In order to make the packing
sufficiently tight the shell is closed at the top by a screw gland g which may be
screwed round the plug down into the shell; between the piece 9 and the plug a
a rubber ring p is placed in order to keep it perfectly tight. At the side of the
outlet opening r of the shell, is the space for the packing f, closed by means of a
flange or ring d on the inner side of the shell, the end surface of this flange or ring
is of course ground exactly to fit the plug. In order to hold the shell against the
flanges of the plug, it is through the screw g pressed down by the spring 1, which
is placed round a pin h on the free end of the plug, between the screw nut k, on the
screw threaded portion of the pin and the screwg in the shell. The cock is
opened and closed by the turning of the shell round the plug, by which the outlet r
in the shell is placed exactly in front of the outlet holes 6 in the plug or removed
from the same.
The shutting takes place by a turn of about 30°. It is preferable
to make the outlet r oval and so placed that its length is along the plug, and the
outlet from the latter is by one or two rows of small holes b, which are also along
the plug. A number of smaller holes (instead of one large opening) are used when
the cock is employed in the manner shown in Figure 4 (as a joint between an
ordinary cock and the main) so that the water, when the cock His suddenly shut,"
does not strike back directly into the main, for it must overcome the hindrance
which is attended with its passage through the small holes.
The before mentioned freedom of the cock from injury by frost is obtained
because the packing f insulates it. When it is wished to filter the water which
flows from the cock, it may be done by placing cotton or other suitable filtering
material inside the plug.
Having now particularly described and ascertained the nature of my said inven-
ion, and in what manner the same is to be performed I declare that what I
laim is :-
1 Cookes with a fund Lall

page_text: outlet holes, consisting of one or more rows of small holes b, and a shell free to
turn about the said plug, which is arranged as a stuffing box around the plug a
and which shell has an outlet r, which opening in the shell is surrounded by a
ground flange or ring d fitting tight to the plug.
2. In the cock specified in Claim 1 the use of a spring 1, which is placed round a
prolongation of the plug a, and which by working on one side against the screw
nut k on the plug a and on the other side against the piece 9, presses the shell e
against the flanges on the plug.
Dated this 16th day of December 1890.
CARPMAEL & Co.,
Agents.