Improvements in Water and other Cocks, Taps, or Stop Valves.
Year: 1896

page_text: Date of Application, 26th Feb., 1896
Improvements in Water and other Cocks, Taps, or Stop Valves.
I, HENRY GRACE of 50 Russell Road, Garston in the County of Lancaster, Builder,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object a tap, cock, or stop valve which shall hold
watertight for a long period and in case the internal thread be strippe: shall
automatically close instead of as with water taps run free. The cock has four
principal parts. First, the body. This has an orifice for the supply near the bottom
and another higher up for the flow. Between these two points the body is tapped
with an internal thread. Second the intermediate body or barrel. This is tapped
into the main barrel is open at the bottom to the supply and has a hole in the side
which opens out to the flow or exhaust. It has canted sides or other appliances for
screwing it in place. Third the valve, which consists of a hollow round barrel with
a lead at one end and a squared portion on the other. On the bead I prefer to put a
washer. Close to the bottom of this barrel is an opening into which the supply
passes and there is an opening near the top which if this valve be at the right point
is opposite the flow. The squared portion fits into the squared portion of the
intermediate barrel. The fourth part is the handle with its gland. The handle has
a long spindle screwed at the bottom up to a disc. Above the disc is a washer and
the gland. The gland screws into the top of the intermediate barrel until the disc
comes in contact with the end of the squared portion of the intermediate barrel. The
screwed part of the spindle screws into a thread formed in the squared portion of
the valve.
The mode of action is as follows:-
The parts being assembled and the handle screwed down the washer is screwed up
to the face of the interinediate barrel and the supply is cut off. The flow is also cut
off through the aperture in the valve not coinciding with that of the intermediate
barrel, and consequently of the body itself. The moment however the handle is
turned the valve is screwed downwards, the supply fluid enters between the washer
and the intermediate barrel into the valve passes up through the valve and there
finds the flow hole in the valve and in the intermediate barrel and consequently in
the outside body coinciding, and the water flows. By screwing in the reverse
direction the washer is brought tight against the bottom of the intermediate barrel,
the two holes at top no longer coincide and the water is unable to get through. If
while the tap is running, through any chance the screw threads fail, the pressure on
the bottom of the valve at once forces the valve up into the closed position and the
tap stops.
Dotal the 25th day of Tuber 190
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: I, HENRY GRACE of 50 Russell Road, Garston in the County of Lancaster, Builder,
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 has for its object a tap, cock, or stop valve which shall hold water
for a long period and in case the internal thread be stripped shall automatically
close, instead of as with ordinary water taps run through.
The invention will be bust understood from the following description, reference.
being had to the accompanying drawings, in which
Fig. 1 sectional elevation, plan through X Y.
Fig. 2 plan taken on the lino X X, and
Fig. 3 elevation.
The cock has four principal parts. First the body A. This has an orifice B for
the supply near the bottom and is open at top. It has preferably two grooves C
one at each side for corresponding projections on part three to be hereafter
described, so as to prevent jurt three from turning. Second, the intermediate
body. Above the orifice B this body is tapped with an internal thread, so as to
screw into the thread D of the main barrel. Part two is open at the bottom to the
supply and has a hole F in the side which opens out to the flow or exhaust opposite
a corresponding hole H in the body A. Part two has squared or canted sides or
other appliances for screwing it in place. Third, the valve G. This consists of a
hollow round barrel with a head at the lower end and two projections sliding in the
grooves of part one. The part between the two projections fits loosely into part
one. This central barrel also has a washer I fitting over the projection formed by
the narrower part of part one, as shown. Below the washer on the lower part of this
barrel is an opening J for the supply which when this part is in place comes
opposite the orifice B for supply in part one. In the upper part of part three is a
second orifice K which if this valve be at the right point is opposite the flow in parts
two and one. The outer surface of this part three fits the inner surface of part 2.
The fourth part is the handle L with its gland M. The handle has a long spindle
screwed at the bottom and has a projecting dise N. Above the disc I prefer to place
a rubber washer and the gland. The gland screws into the top of the intermediate
barrel until the disc N comes in contact with the projecting portion on the
intermediate barrel. The mode of action is as follows:-The parts being assembled
as shown in the drawings, and the handle screwed down the washer and gland are
scrowed up to the face of the intermediate barrel and the supply is cut off. The flow
is also cut off through the aperture in the valve not coinciding with that of the
intermediate barrel and consequently of the body itself. When however the handle is
turned tho valvo is screwed downwards the supply fluid enters the orifice between the
bottom head and the intermediate barrel into the valve passes up through the valvo
and there finds the flow hole in the valve and in the intermediate barrel and
consequently in the coinciding hole of the outside body and the fluid flows. By
screwing the handle in the reverse direction the washer is brought right against the
bottom of the intermediate barrel, the two holes at top no longer coincide and the
water is unable to get through. If while the tap is running, through any chance
the screw thread fails the pressure on the bottom of the valve at once forces tho valve
up into the closed position and the tap stops running.

page_text: 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 :-
1. A tap, cock, or valve formed with a valve screwed on the spindle and so
arranged that should the thread be stripped so that the valve is free the latter shall
automatically close the flow.
2. A valve composed of a body having an upward flow, secondly a valve closing
that flow by a vertical movement, thirdly, an intermediate body which when the tap
is in action is screwed or fixed tight to the main body, and fourthly, a spindle passing
through the intermediate body and tapped into the valve with washers for preventing
the improper flow of the fluid substantially as described.
3. A tap arranged substantially as described and illustrated in the accompanying
drawings.
Dated the 25th day of November 1896.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicant.