A COCK or Tap with Limited Delivery.
Year: 1892

page_text: Deing date от First Foreign Application (m
France),
Date of Application (in United Kingdom), 7th Nov., 1892
may,
1004
Complete Specification Left, 28th July, 1893-Accepted, 2nd Sept., 1893
Date of Application (in United Kingdom), 7th Nov., 1892
Complete Specification Left, 28th July, 1893-Accepted, 2nd Sept., 1893
A COCK or Tap with Limited Delivery.
I MARIE EDMOND PHILBERT CHABOCHE of 95 Boulevard Beaumarchais,
Paris in the Republic of France, Engineer, do hereby declare the nature of this:
invention to be as follows:—
The apparatus which forms the cock or tap with limited delivery, is placed after
the ordinary shut-off cock and consists of a vessel in connection therewith provided
with a flexible partition.
Attached to this flexible partition, is a hollow rod, which extends through an
opening in the side of the chamber, and into two chambers beyond of different
diameters. Between the two chambers, is a guide for the rod, and the first
chamber receives the exit pipe.
On the rod is mounted loosely a disc valve intended to close the opening to the
vessel at certain times, a second disc being fixed on the rod, so that when the rod
is drawn forward, the fixed disc will strike against the loose disc, and force it
forward, to close the opening. Springs are provided in the rod to cause return
motion when requisite.
The flexible partition has a small opening by which water can pass from one;
side to the other.
Dated this 7th day of November 1892.
:
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
A Cock or Tap with Limited Delivery.
I, MARIE EDMOND PHILBERT CHABOCHE of 95 Boulevard Beaumarchais,'
Paris in the Republic of France, 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:-
The present invention relates to a novel construction of tap or cock with limited
delivery, which I have represented in transverse section on the annexed drawing.
The apparatus is placed after the shut-off cock in the service system for water
under pressure.
At R is provided a shut-off cock of any kind. I have shewn in the drawing
screwdown valve, but it might be a plug cock, or a cock of any other form.
a
The water arrives from the service pipe at a, and runs from the cock R by the
passage b. It enters the space c of the vessel or cavity C, and from thence
passes, by the opening O, into the chamber m, and escapes by the pipe or
nozzle e.
The spaces c and d of the vessel C, are separated by a flexible partition rendered

page_text: waterproof with some suitable composition, and communicate with one another by
a small opening i in the partition.
A valves, actuated by a spring, has its seat against the opening O. This valve
slides easily on a rod t, on which is fixed a second valve s', which prevents the
water from running away through the space existing between the valves and the
rod t.
The rod t is hollow, and provides the means of communication between the
spaced and the chambers m and n, between which will be found a perforated
partition g. This partition serves as an abutment for the spring of the valves,
and for a spring on rod t.
This second spring is intended to force the rod from right to left.
Let it be supposed that the cock R is closed, and that the space d is completely
filled with water, so that, by reason of the displacement, to the left, of the flexible
partition, the space c is practically done away with. At this moment, if the
cock R be opened, the water runs in, enters the space c, driving in the flexible
partition, and runs out by the opening O, forcing back the valve s.
The pressure of the water on the flexible partition, is transmitted to the water
contained in the space d; under the influence of this pressure, the water is forced
out of the space d through the hollow rod t.
As the result of this running away, the flexible partition is forced over to the
right, drawing with it the rod t, to the end of which the partition is attached.
When the flexible partition shall have arrived at the end of its movement, that is
to say, when there is no more water in the space d, the valve s¹ fixed on the rod t,
and drawn by it in its movement towards the right, will press on the valve
force the latter against its seat, that is to say, close the opening o.
and
The movement towards the right is rendered possible by reason of the difference
of the surfaces on which the water pressure acts, that is to say, on one hand, the
water pressure acts (from left to right) on the surface p, and, on the other hand,
it acts (from right to left) on the smaller surface of the valve s.
It is then evident that the movement towards the right will be possible, and will
effect, as result, the closing of the opening o by the valve s, when the flexible
partition p will be at the end of its stroke.
At this moment, the water finds no exit, and the delivery is stopped.
The delivery will thus take place only during the time necessary for the space
to become empty by means of the opening of the rod.
The duration of the delivery depends then, on the size of the opening f.
The opening i, of which mention has already been made, is intended to permit
of the flexible partition retaking its first position.
In effect, let it be supposed, that the inlet cock R is closed, when the apparatus
is in the position of stopping the delivery. The water which fills the space c
passes little by little through the opening into the space d, and, at the end of a
certain time, equilibrium is reëstablished, and the rod t, under the influence of the
spring, draws the flexible partition towards the left, until it occupies the first
position, that is to say, until there is practically no space c left.
If this apparatus is used without going to the extreme limit of delivery, the
cock works apparently as an ordinary cock.
If the closing of the cock be neglected, the delivery will stop automatically,
and only a little escape will indicate the position of the cock.
The uses to which this new system of cock with limited delivery may be applied,
are very numerous; it will therefore suffice for me to indicate, as immediate
application, its employment either for the water supply of apartments, or for
feeding the flushing tanks of water-closets, but I do not intend to limit myself to
such applications, which I cite as examples only. I reserve to myself, therefore,
the application of my new system of limited delivery, to all systems of water
distribution in general, whatever they may be, as well as the change of exterior
form of the apparatus, and the position of this latter (horizontal, vertical, inclined
at any angle, etc.).

page_text: I reserve to myself also, if necessary, to modify the form of the springs
represented on the annexed drawing, and to employ any other means for actuating
automatically the rod and the valve.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improved construction of water-cock with limited delivery above
described, containing a cavity divided by a flexible partition, which, under the
action of the pressure of the water, and by reason of its displacement towards the
right and towards the left, operates a valve which closes or opens the orifice for
the exit of the water, substantially as set forth with reference to the accompanying
drawing.
2. The employment, in a water cock with a limited delivery, of a hollow rod
fixed to the movable partition which divides a cavity arranged in the cock-casing,
and actuated by a spring which tends to force it into the position to close the
outlet orifice, the said hollow rod serving as the outlet passage for the water from
one side of the movable partition, during the working of the cock, the partition
returning to its position by reason of a little opening therein, which permits the
water to fill again the space from which the water had previously been withdrawn,
thereby forcing the partition into the desired position, so that the water arriving
from the service pipe, begins to run when the shut-off cock is opened, all
substantially as explained with reference to the accompanying drawings.
Dated this 28th day of July 1893
NEWTON & SON,
Agents for the Applicant.