Improvements in Taps or Cocks for Liquids.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Taps or Cocks for Liquids.
I, EDWARD CHARLES PECK, residing at Oversleigh, Wellington Road, Old
Charlton, Kent, England, 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 :-
My improvement consist in providing a simple tap or cock for liquids under high
or low pressure which shall remain tight without the use of packing of any kind;
the entire tap being composed of metal and having no springs leathers, india-rubber
washers or other like material to break, waste or wear away; thus preventing
leakage or waste of the liquid. The pressure of the liquid tends to keep the valve
closed and I may therefor in some cases dispense with any means for nipping it
down to its seat. The operation of closing the valve consists in lowering it to its
seat then revolving it a little when in that position and then if necessary nipping
it down securely. The slight turning movement given to the valve when pressed
against its seat by the water tends to keep the faces of the valve and seat in good
order and perfectly clean and tight.
Fig. 1 Sheet I shews a sectional elevation of one form of the tap, A. is the body,
B the valve seat, C the valve having three or more tails D projecting downwards
into a combined opening and closing nut and discharge nozzle, hereinafter called
the nozzle E; these tails are connected in this case to the nozzle E by being bent
from the position shewn in dotted lines to that shewn in full lines so as to engage
the under side of the internal ring F. A number of shallow radial slots are cut
in the upper edge of the nozzle E at G. G. for the purpose of receiving the tails of
the valve and carrying them round during the operation of closing and for a short
time after the valve has arrived on its seat; the nut or nozzle being then still
further screwed down the tails are left clear of these slots and the valve may then,
being at rest upon its seat, be nipped down securely by the bearing of the internal
ring F on the lower projecting parts of the tails. The nozzle E is turned by means
of a milled wheel H or other suitable contrivance.
Fig. 2 Sheet I is another form of the tap, A is the body, B the valve seat, C the
valve having one long tail projecting down into the nozzle E and its lower part e.
The tail D is connected to the nozzle E by means of a ring F, cut diametrically in
halves, being slipped over the tail and fitting loosely into slots cut on either side of
it, and secured by the smaller part e. of the nozzle E. A number of radial
slots G. G. are cut in the upper face of the ring F for the purpose of receiving the
tail of the valve and carrying it round as described in reference to Fig. 1 of the
same sheet.
Fig. 1 Sheet II shews another form of the tap, A is the body, B is the valve
seat, C the valve having a central stem D bearing on the top of the nozzle E and
provided with slots G. G. to receive the projections formed on the top of the
nozzle E at H. F is a pin passing through the bridge piece of the nozzle E and
screwed fast into the valve stem, for the purpose of pulling the valve down on to
its seat if necessary, and also for preventing the nozzle E being fully withdrawn.
Fig. 2 shews a plan of the nozzle E shewing the two projections H. H., and Fig. 3
is an inverted plan of the valve shewing the slots G. G. cut in the stem. Fig. 4
Sheet II shews another form of the tap, A is the body, B the valve seat, C the
valve through which a hole is drilled to receive the stem D of the nozzle E; the
stem is secured in the upper side of the valve by a pin F or other means and
covered over watertight by the cap f. A ring projecting from the under side of
the valve at G is provided with a number of radial slots for the purpose, during
D

page_text: the process of screwing down the valve, of engaging the 2, 3, or more webs con-
necting the stem D to the nozzle E. and the depth of these slots are so adjusted
that the webs of the nozzle are clear of the slots after they have rotated the valve
a little on its seat and just previous to the pin F coming to a bearing on the top of
the valve.
The method of connecting the valve to the nozzle may be varied so long as its
action as described is not interferred with.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same, is to be performed; I declare that what 1
claim is :-
1st. The improvements in taps or cocks for liquids substantially as described in
the foregoing Specification and illustrated in the accompanying drawings.
2nd. The method of opening and closing the valve of a tap or cock having
pressure above it by connecting it to a combined opening and closing nut and
discharge nozzle acting substantially as described in the foregoing Specification
and illustrated in the accompanying drawings.
3rd. The combination in a tap or cock of the means for rotating the valve after
it has come down on its seat substantially as described in the foregoing Specification
and illustrated in the accompanying drawings.
Dated this 1st day of January 1892.
EDWARD CHARLES PECK.