Improvements in High Pressure Water Cocks.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in High Pressure Water Cocks.
I, JAMES WINTFIELD, of 38 and 39, Oxford Street, Birmingham, in the County
of Warwick, Brassfounder, do hereby declare the nature of this invention to be
as follows:
This invention consists in forming the cock by applying a leather cone shaped
valve or washer of a special kind namely similar to an inverted cup which is
situated upon the valve spindle above the ordinary valve seat. By this means
as the water enters the cock the greater the pressure against the said cone shaped
valve or cup the greater will be the expansion of the same which thus renders
the cock more secure from possible leakage.
The adaptation of the said cone shaped valve in the manner set forth enables
me to dispense with the usual method of stuffing box and screw threads in con-
nection with the valve spindle and thus considerably reduces the cost and labour
of manufacture.
EDWD. J. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicant.
Improvements in High Pressure Water Cocks.
1, JAMES WHITFIELD, of 38 and 39, Oxford Street, Birmingham, in the County,
of Warwick, Brass Founder, 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 aud by the following statement, reference being had to the draw-
ings and to the figures and letters shewn thereon.
Figure 1, represents in sectional elevation the cock and my improvements
applied viz., the inverted cup shaped valve or washer hereinafter more fully
referred to. Figures 2, 3, and 4, are respectively views of the inverted cup shaped
valve. Fig. 5, is the spindle that carries the cup shaped valve.
For the purpose of illustration I have represented the valve or washer as
straight sided it may however be cone shaped.
My invention consists in forming the cock by introducing and applying a
specially shaped valve or washer A of leather or other suitable yielding material
this valve or washer A is of a special kind namely similar to an inverted cup or

page_text: of a cone shape and is situated upon the valve spindle B above the ordinary valve
seat and is rigidly held and kept in position by and between two metal discs C C¹
upon the valve spindle B.
The result of this arrangement is that as the water enters the cock the greater
the pressure against the said valve or cup A the greater will be the expansion of
the same against the interior sides of the cock which thus renders it more secure
from possible leakage.
By the use and adaptation of this auxiliary valve or cupped washer A in the
manner set forth and referred to I am enabled to dispense with the usual method
of stuffing box and screw threads in connection with the valve spindle and thus
the cost and labour to be expended in the manufacture of this description of water
cock is considerably reduced without in any way lessening the security of the
cock, from leakage.
I do not limit myself to the precise arrangement set forth herein as sometimes
slight variations may be made in shape etc., without departing from the main
feature of this my invention, but
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;
Firstly. In high pressure water cocks the special formation and use of an
auxiliary leather valve or washer of an inverted cup shape, A, or of a conical
shape in combination with the other parts and operating substantially as and
for the purpose described and illustrated in the accompanying drawings.
Secondly. In combination applying to high pressure water cocks an inverted
cup shaped washer. A, of leather or other yielding material situated upon the
spindle, B, and retained in position by the flanges or discs CC as described and
illustrated in Figures 1 to 5 of the accompanying drawings.
Thirdly. The improvements in high pressure water cocks as herein set forth.
Пятел THIN 111 day OT AUGUST
Пятел THIN 171 day 01 AUGUST 1398.
EDWD. J. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicant.