Improvements in Valves or Cocks.
Year: 1898

page_text: Date of Application, 25th Oct., 1898 -Accepted, 28th Jan., 1899
COMPLETE SPECIFICATION.
Improvements in Valves or Cocks.
I, HENRY CHATARD SCHMIDT, of 2115, Clifton Street, in the City of Baltimore,
and State of Maryland, United States of America, 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:-
This invention relates to certain improvements in valves or cocks and particu-
larly to cocks in that class in which the valve closes in the direction of the flow of
water, in contradistinction to those in which the valve is seated against the pressure
of water from the service pipe; and the said invention consists in the constructions
and combinations set forth in the claims.
In the further description of the said invention which follows, reference is made
to the accompanying drawing forming a part hereof and in which,-
Figure is an exterior side view of the improved cock.
Fig. 2 is a longitudinal side section of the same.
Fig. 3 is a view of Fig. 1 as seen from the front.
Figs. 4, 5, 6 and 7 are details of the improved cock.
Referring now to the drawing, A is the shell of the cock, consisting of two
principal parts, a and b, the former having a threaded end whereby it is attachable
to the service water pipe, and the latter which is screwed over the part a having a
raised valve seat and the turned down discharge nozzle d.
At the inner end of the part a of the shell A is a bridge piece e in the centre of
which is a threaded hole for the valve stem B.
Integral with the stem B is the valve C which consists of a circular disk having
an annular recess into which is forced the annular compressible gasket h. This
gasket forms the face of the valve which in the closing operation is brought into
contact with the raised seat c.
The waterway j is of such diameter that the space around the stem is sufficient
when the valve is open, to allow of the free discharge of water to the turned-down
nozzle d.
At the junction of the delivery nozzle and the part of the shell A is an exteriorly
threaded boss through which the valve stem B passes; and the said stem is pro-
vided with a handle D whereby it is turned to open and close the valve.
The threaded boss k has a screw gland E between the inner surface of which
and the outer surface of the boss, may be placed a compressible washer to prevent
escape of water around the stem.
The thread on the valve stem is preferably what is termed a left hand thread in
order that in turning the handle in the direction taken to release a screw, the valve
is opened, and vice versa.
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
In a cock, or valve the shell thereof composed of two parts screwed together,
one part having a water-way and an interiorly threaded bridge at a right angle with
the water-way and the other provided with a discharge nozzle and a
water m

page_text: in alignment with the first water-way, the latter water-way being surrounded by
a raised valve seat, combined with a stem one end of which is threaded so as to
screw into the threaded bridge, and the other which passes through a smooth or
unthreaded aperture in the shell, provided with a handle, and a valve integral
with the stem, which consists of a flat-faced circular disk with an annular recess
for a joint-forming gasket, the said valve being situated between the raised valve
seat and the threaded bridge, substantially as specified.
T1* 1011
La11000
1
HENRY CHATARD SCHMIDT.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C,
Agents for the Applicant."
"