Year: 1888

page_text: CODE UBE
We JAMES RIGG of No 11 Queen Victoria Street in the City of London, THOMAS
MEACOOK and ANGUS WILLIAM CULHBFRT WARD both of the City and County of
Chester, Engineers 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 is designed as a Valve, Tap or Cock to fulfil particularly the
following threefold advantageous conditions
1st Automatically to close when no longer acted upon by the person drawing
water or other fluid therefrom
2nd To close gradually or slowly preventing thereby concussion or reaction in the
main or discharge pipe
3rd Being partially balanced it facilitates the easy opening of a large Valve, or a
valve under considerable pressure
Our invention consists essentially of a valve, tap or cock having a back part of
cylindrical form adapted for connecting to the pipe from which fluid is required to be
drawn, spout portion, externally of somewhat similar shape, having a cataract
chamber formed therein, which latter chamber is in constant communication with the
supply pipe through a central aperture in the Pull or Push stem or valve spindle,
and having one or more radial tributaries in convenient position for communicating
with the cataract chamber
Operation To draw fluid relieve the valve face at extremity of valve Pull or Push
stem off its seating when the fluid will discharge freely, the aforementioned cataract
chamber rendering the operation quite easy due to the valve being partially balanced
In the Pull design Fig 1 it will be noticed that before the valve face can resume its
position of covering the discharge orifice the cataract chamber would have to be
partially charged, whereas in the Push design Fig 2 the cataract chamber would have
to become partially discharged, in either case this would be effected through the small
aperture in valve stem or spindle, this system causes the automatic closing of the
tan to be very gradual

page_text: Description of Drawing Fig 1 is a sectional drawing of the Pull design of Tap,
valve or cock, Fig 2 shews a corresponding view of the Push design of tip, valve or
cock
Referring to Fig 1-A is the back portion of tap, having a taper end prepared for
soldering to discharge man, this end may be screwed or any other convenient method
of connection may be adopted, B is the front portion of Tip, having the cataract
chamber formed therein, D is the valve face covering the discharge orifice when in
contact with the seating E, the valve stem or spindle is provided with central
passige G which forms communication between the discharge pipe and catirict
ch umber, for prevention of the passage G becoming the recipient of any foreign
matter such as grit, we provide the wire gauze protection shewn at H, the two
packings I and J are shewn of U form, they would preferably be mide of leather,
but in some cases india rubber would be used or any other suit ible material or method
of packing may be adopted
Referring to Fig 2 it will be observed that the number of parts of the Push design
tap correspond with the number in the Pull design tap shewn in Fig 1 and described
above, the same reference letters applying to both figures, the difference of con-
struction being that in Fig 2 the valve se iting E is formed on front portion of tap in
place of bick portion as shewn in Fig 1, and the difference in operating the Pull
design from that of the Push design is that in the former the valve fice D is pulled
off its seating E whereas in the latter Push design the valve face D has to be pressed
off its sorting E to effect a discharge of fluid, the unbalanced area which is available
for automatic illy bringing the valve face D upon its soiting E and keeping it there
until acted upon by the person drawing fluid, is in the Pull design Fig 1 the increase
of rei in Citrict chamber over that of discharge pipe it so iting E In the Push
design Fig 2 the unbalanced area consists of the arc of valve stem or spindle F
Our Invention relates to Taps, valves or cocks which automatically and gradually
close of themselves when liberated from pressure of hand or other force acting upon
the stem or spindle, and are at the same time casy and noiseless in their action
Having now particularly described and ascertained the nature of our said
Invention and the manner in which the same is to be performed we wish it to be
understood that we do not bind ourselves to the precise detuls herein described and
illustrated is the same may be varied without departing from the niture of this
invention, but we clum as our Invention the combination and irringement of parts
forming a complete valve, tap or cock, as herein set forth_and_more_particularly_
described
Claim The combination in a Tap, Valve or Cock of cataract chamber communi-
cating with the supply pipe arranged to control and cause to be automatic the closing