Improvements in and relating to Taps for Drawing Water and other Liquids.
Year: 1897

page_text: Date of Application, 8th Dec., 1897
Complete Specification Left, 7th Sept., 1898--Accepted, 19th Nov.,
1898
PROVISIONAL SPECIFICATION.
Improvements in and relating to Taps for Drawing Water and other
Liquids.
I, JOSEPH WILLIAM LEE, of 11, 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 for drawing water and other liquids, and has for
its object to dispense with the use of washers, packing and other small component
parts, such as are employed in taps as heretofore constructed, while at the same
time preventing leakage, and consequent waste of water, while they last much
longer than the ordinary taps now in use.
In a simple form of my invention, I construct the shell of the tap of an upper
and a lower portion, both being hollow, and the upper part having a nozzle which
is screwed externally to engage a female screw formed in the lower part.
In the central aperture a spindle, screwed externally for part of its length, is
inserted, the lower end of which spindle works on a centre at the bottom of the
cup shaped valve, this centre being below the level of the seating which regulates
the supply of water, and so poises or balances the valve when it rises and falls.
The valve is cup shaped and has a flange around the top which rests upon and
forms a joint with the upper edge of the hole in the lower part of the tap case.
This serves to prevent any liquid passing. On turning the spindle by means of
a suitable handle or knob in that direction which raises same, the force of the
water underneath the cup shaped valve raises it up and allows the water to flow
up around the valve and out of the ordinary outlet pipe.
The spindle is preferably provided with a circular flange which fits into a cor-
responding recess in the upper part of the tap, thus determining the maximum
volume of water which shall be allowed to pass the tap.
I would have it understood that I do not restrict myself to the shape of the
particular parts as described above, but that many modifications of detail may be
made without departing from the principle of my invention.
Dated this 8th day of December 1897.
WILLIAM J. MUNDEN,
75, Chancery Lane, London. W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Taps for Drawing Water and other
Liquids.
I, JOSEPH WILLIAM LEE, formerly of 11, Causeway, but now of 11, Brunswick
Place, Cambridge, in the County of Cambridge, Consulting Engineer, do hereby
declare the nature of this invention and in what munner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement:-
-
This invention relates to taps for drawing water and other liquids, and has
for its object to dispense with the use of washers, packing and other small com-
ponent parts such as are employed in taps as heretofore constructed. While all
cost of repair and renewing of spigots as in the case of the ordinary tap now in
common use is entirely done away with, as in the event of wear on the seat of
the ordinary tap a new tap becomes necessary; in this invention by simply
replacing the cone or thimble-shaped valve the tap is equal to a new one.
In a simple form of my invention, I construct the shell of the tap hollow, while
the cap or bracket for the stem of the valve has an unusually long female thread
which engages with a corresponding male thread on the valve stem. The advan-
tage in this increased length of thread lies in dispensing with all packing thus
preventing the leakage common to taps around the stem of the valve.
The central aperture contains the valve stem as described above by having a
long male thread on the central portion of the stem. At the lower extremity of
this threading the diameter of the stem is reduced, the smaller diameter being
cone-shaped at the lower end the point of which compresses a thimble shaped
valve which is described as follows:-The valve of this tap is different in construc-
tion from any other valve the length being greater than the diameter. It is made.
in a cup or thimble-shape being hollow; and has a flange around its upper
periphery which forms the valve and seats itself on the valve seat of the tap by
means of the point as described on the lower end of the valve stem which engages
in a small cup at the inner base of the said thimble-shaped 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 valve and casing according to my invention.
Figs. 2 and 3 are detail views.
A, indicates the lower part of the casing with which is formed integrally the inlet
opening B, and the outlet C. This casing has a female screw formed in its upper
side a into which screws the nozzle d of the upper part of the casing D, the
centre of which is bored and screwed, to receive the spindle E which at its upper
end has a hand wheel or tee piece F, or other equivalent device by means of which
it can be turned so as to be raised or lowered.
The valve G, is shewn cup or thimble-shaped but may be of any suitable or
convenient shape which allows of the lower end e of the spindle E pressing upon
the valve at a point which is on a lower level than that part a¹ of the casing A
which forms a seating for the rim or flange g of the valve G. The valve is bored
of such a diameter that the lower end e of the spindle E enters it freely leaving
an annular space round the spindle.
It will be seen that the point of contact of the spindle with the valve being at
a lower level than the seating, the upper end of the valve is free to move laterally
thus enabling it to adjust itself to the seating at whatever position it may assume.
This assures an accurate joint when the valve is closed and thus prevents all leak-
age and waste of water; in addition the valves last much longer than when they
are rigidly attached to the spindles.
The spindle is in general provided with a circular flange e¹ which fits into a
corresponding recess in the upper part of the tap casing D, and thus determines
the maximum volume of water which shall be allowed to pass the tap.
Having now particularly described and astertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is:-
1. A tap or cock in which the valve spindle is separate from the valve and in
which the point of contact of the valve spindle with the valve is at a lower level
than the seating in such manner that the upper part of the valve is free to move
laterally so as to adjust itself on the seating formed in the casing.

page_text: 2. In a tap or cock for liquids the combination of the casing A D the inlet B,
the outlet C, the valve spindle E, the valve G, and the seating a substantially
as shewn and described in the accompanying drawings.
3. In a tap or cock for liquids the combination of the casing A D, the inlet B,
the outlet C, the valve spindle E, the valve G, the seating a¹, and the flange e¹,
substantially as shewn and described in the accompanying drawings.
4. A tap or cock for liquids substantially as shewn and described in the accom-
panying drawings.
5. In a tap or cock for liquids the cup shaped valve G, substantially as shewn
and described in the accompanying drawings.
Dated this 7th day of September 1898.
WILLIAM J. MUNDEN,
75, Chancery Lane, London, W.C., Agent for the Applicant.