An Improved Tap or Cock.
Year: 1899

page_text: Date of Application, 14th Mar., 1899
Complete Specification Left, 12th Jan., 1900-Accepted, 17th Feb., 1900
PROVISIONAL SPECIFICATION.
An Improved Tap or Cock.
I, JOSEPH WILLIAM LEE, of "The Causeway," Cambridge, in the County of
Cambridge, Consulting Engineer, do hereby declare the nature of this invention
to be as follows:-
-
This invention relates to taps or cocks used for drawing water and other
liquids and consists of a disc valve pressure tap which is simple in construction,
reliable in action, and which can be manufactured at a low first cost.
The tap body or shell is in general made in two parts, the lower screwing into
the upper. The lower part in which is formed the nozzle or exit opening has
its upper surface shaped plane and true, so as to form a seating for the valve.
In this seating are formed one or more segmental slots and the centre of the
seating has a circular depression formed in it which serves as a guide for the
lower end of the valve spindle.
The upper part of the tap shell opens at one side to the inlet orifice for the
water which thus enters the tap above the valve seating. Upon this valve
seating rests the disc valve in which are formed one or more segmental openings
similar to those in the seating in such manner that when this valve is turned so
that its segmental opening or openings coincide with the similar openings
formed in the seating the water is free to pass from the supply pipe through the
tap to the exit passage.
Formed integrally with and projecting from the upper surface of the disc valve
is a collar which has a square opening in the centre into which fits a corresponding
square formed upon the valve spindle in such manner that when the spindle
is turned through a part of a circle the valve turns with it. Above this square
part and surrounding the valve spindle is a flat collar which is capable of sliding
on this valve spindle, and pressing upon the upper side of the disc valve collar,
but is prevented from turning by means of one or more pins which enter the
same. Above this collar is formed an annular chamber (surrounding the valve
spindle) which contains a helical spring which constantly presses the collar down-
wards and consequently keeps the disc valve on its seat. The valve spindle
passes out through the top of the tap shell where it may be packed if necessary:
it may be turned by a wheel or other means disposed at its upper end.
It will thus be seen that by turning the valve spindle and disc valve so as to
bring the segmental openings in the disc valve coincident with those in the valve
seating water is allowed to pass through the tap; whereas by turning the disc
valve through a part of a circle so that these openings no longer coincide the
water is prevented from passing.
A perfect joint is secured by the combined pressure of the water upon the valve
and that of the helical spring upon the collar and valve.
Dated this 14th day of March 1899.
WILLIAM J. MUNDEN,
75, Chancery Lane, London, W.C.,
Agent for the Applicant.

page_text: An improved Tap or Cock.
I, JOSEPH WILLIAM LEE, of "The Causeway," Cambridge, in the County of
Cambridge, Consulting 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 relates to taps or cocks used for drawing water and other
liquids and consists of a "special" disc valve pressure tap which is simple in
construction, reliable in action and which can be manufactured at a low
first cost.
The tap body or shell is in general made in two parts, the lower screwing into
the upper.
The lower part, in which is formed the nozzle or exit opening has its upper
surface shaped plane and true so as to form a seating for the valve. In this
seating are formed one or more segmental slots or other shaped orifices and the
centre of the seating has a circular depression formed in it which serves as a
guide for the lower end of the valve spindle.
The upper part of the tap shell opens at one side to the inlet orifice for the
water which thus enters the tap above the valve scating. Upon this valve
seating rests the disc valve in which are formed one or more segmental or other
openings similar to those in the seating, in such manner that when the valve
is turned so that its opening or openings coincide with the similar openings
formed in the seating the water is free to pass from the supply pipe through the
tap to the exit passage.
Formed integrally with and projecting from the upper surface of the disc
valve is a collar which has a square opening in the centre into which fits a
corresponding square formed upon the valve spindle in such manner that when
the spindle is turned through a part of a circle the valve turns with it. Above
this square part and surrounding the valve spindle is a flat collar which is
capable of sliding on the valve spindle, and pressing upon the upper side of the
disc valve collar, but is prevented from turning by means of one or more pins
which enter the same. Above this collar is formed an annular chamber (sur-
rounding the valve spindle) which contains a helical spring which constantly
presses the collar and spindle downwards and consequently keeps the disc valve
on its seat. The valve spindle passes out through the top of the tap shell where
it may be packed if necessary; it may be turned by a wheel or other means
disposed at its upper end.
It will thus be seen that by turning the valve spindle and disc valve so as to
bring the segmental openings in the dise valve coincident with those in the
valve seating water is allowed to pass through the tap; whereas by turning the
dise valve through a part of a circle so that these openings no longer coincide
the water is prevented from passing.
A perfect joint is secured by the combined pressure of the water upon the
valve and that of the helical spring upon the collar, spindle, and valve.
In order that my invention may be fully understood and ascertained I append
drawings in which:-
Fig. 1 is a vertical section of a cock according to my invention containing
a special disc valve.
i.
Fig. 2 is a plan on an enlarged scale of the valve and seating.
Fig. 3 is a section shewing the helical spring, loose collar, and spindle
بملامم

page_text: The upper part of the shell is indicated by the letter A and the lower by B;
a indicates the inlet orifice and the nozzle or outlet orifice, the upper end b₁
of which is screwed into the lower part of the shell A. The upper surface B¹
is plane and true so as to form a seating for the disc valve C, the under surface
or face of which is faced plane and true so as to be in close and perfect contact
with the seating B. The disc valve has a central boss c in which a square hole c¹
is formed in which fits easily a square or other polygonal shaped part d of the
valve spindle 1) so that the turning of the one produces a corresponding move-
ment of the other. The lower end of the valve spindle 1) is round in section
and fits a depression or socket formed in the centre of the valve seating;
this serves as a guide to retain the valve spindle and valve in the central posi-
tion. Above the square part d the valve spindle D has a collar formed
integrally with it and above this a circular part of the spindle extends up-
wards out of the tap and has a hand wheel E fixed to it by means of which the
spindle may be turned.
The upper part of the shell A has a chamber formed in it which surrounds
the circular part of the valve spindle and is of sufficient diameter to receive the
collar ; and it has screwed into its upper end a plug G. Between the lower
end of this plug and the upper side of the collar and inside the chamber are
disposed a loose collar H the underside of which rests upon the collar, and
a helical spring which is interposed between the lower end of the plug G and
the upper side of the loose collar H; the thrust of this spring upon the loose
collar forces it, the spindle and the disc valve upon its seating and this spring
pressure is reinforced by the pressure of the water upon the upper surface of the
disc valve.
It will be understood that the lower part of the opening in the valve boss
is of less diameter than the square part of the spindle; consequently the valve
is pressed downwards with the spindle.
The upper part of the valve spindle may be packed if necessary by a gland
or other suitable means.
The seating B₁ has formed in it segmental openings K and the valve has
similar openings L; these being arranged so that the openings L can by turning
the valve be brought to coincide with the openings K beneath them. In this
position the water is free to pass through the valve but by turning the valve by
means of the spindle to the position shewn in Fig. 2 the openings L and K
no longer coincide; the valve is thus closed.
In my "special" disc valve the openings for the passage of water may be of
any convenient number and shape but I preferably employ openings of a seg-
mental shape as shewn.
It is advisable that the loose collar H should be prevented from turning with
the fixed collar and spindle; this may be effected in any convenient manner
pins which work in vertical grooves in the shell A being shewn in the draw-
ing. The pins may however be fixed in the shell and enter grooves formed in
the loose collar.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, declare that what
I claim is:-
--
1. A tap or cock having a seating formed with openings therein and a valve
fitting upon the same and having corresponding openings: the valve spindle
fitting loosely a square or other polygonal hole formed in the boss of the disc
valve, substantially as described and shewn.
2. A tap or cock constructed and operating substantially in the manner shewn
and described with reference to the accompanying drawings.
3. In a tap or cock the combination of a body or shell, a seating having
openings, a special disc valve having similar openings, a valve spindle the
66

page_text: lower end of which is of polygonal section, and which has a fixed collar, a loose
collar, and a helical or other spring which normally presses the valve spindle
and valve downward upon the seating, substantially as described and shewn.
4. In a tap or cock, the combination of the shell A, the nozzle B, the seat-
ing having openings K, the dise valve C having openings L and a polygonal
opening in its boss, the spindle 1), having a square part d. a guide part d', a
collar and an upper part ³, the loose collar H and the helical spring h,
substantially as described and shewn.
Dated this 8th day of January 1900.
WILLIAM J. MUNDEN,
75, Chancery Lane, Agent for Applicant.