Improvements in Valves for Retaining Fluids or Liquids.
Year: 1897

page_text: Improvements in Valves for Retaining Fluids or Liquids.
CHARLES HENRY ROSHER, 215, Mansion House Chambers, London, E.C., Civil
and Consulting Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improved type or construction of valve-appliance for
retaining fluids or liquids and is well adapted for use in connection with pneumatic
tyres for vehicles and for closed vessels designed to contain compressed gases or
liquids and which are usually "charged" with such gases or liquids by means of a
pump or other forcing and compressing appliance.
In the construction of my valve-appliance I employ a hollow cylindrical body
or casing one end of which is inwardly flanged, the better to form a seating for the
valve, as also a guide for the valve-stem which operates concentrically within the
body. This end is attached to the connection with the pneumatic tyre or its equiva-
lent, while the other end of the body is arranged for the attachment of the pump
or forcing and compressing appliance and into this end of the body is inserted
a cylindrical liner or tube, the inserted end of which is slightly flanged internally
The liner or tube is of such diameter
to form a second guide for the valve-stem.
as to be able to slide when inserted into the outer casing or body.
The valve itself is attached to or carried on a stem or stalk arranged to work
concentrically within the body-such stem being formed of three or more wings or
feathers which radiate from the central line thereof.
One end of the stem carries the valve and at its other extremity the wings or
feathers are slightly extended in section, so as to form shoulders or projections which
engage with the internal flange of the liner.
Confined within the body or casing and surrounding the valve-stem is a coiled-
spring, bearing at one end against the internal flange of the body and at the other
end against the internally-flanged end of the liner.
Under normal conditions, the valve is held firmly to its seat by means of the
pressure exerted by the spring upon the liner which engages with the shoulders
of the feathered valve-stem; but when by the action of attaching the pump or by
means of some other device, the liner is pressed inwards into the body, the coiled-
spring is thereby compressed and the valve and its stem are thereby simultaneously
relieved or entirely released from the action of the spring.
Dated thin 19th day of May 1897.
Improvements in Valves for Retaining Fluids or Liquias.
I, CHARLES HENRY ROSHER, of 215, Mansion House Chambers, London, Civil
Engineer, do hereby declare the nature of this invention and in what manner the
Price 8d.]

page_text: same is to be performed, to be particularly described and ascertained in and by the
following statement:―
•
This invention relates to an improved type or construction of valve-appliance for
retaining fluids or liquids and is well adapted for use in connection with pneumatic
tyres for vehicles and for closed vessels designed to contain compressed gases or
liquids, and which are usually charged with such gases or liquids by means of a
pump, or other forcing or compressing appliance.
The invention will be readily understood on reference to the drawings annexed
hereto in which
Figure 1 shows the valve and its connections in section in its closed position
provided with dust cap.
Figure 2 shows the valve and its connections in section as it would appear when
in operation the dust cap being removed and the nozzle of an inflating instrument
or pump connected therewith.
Figure 3 is a cross section on line x, x, Figure 1, and
Figure 4 a cross section on line Z, Z, in the same figure.
The valve body a is formed in one piece the lower end being inwardly flanged
at a to form a seating and guide for the valve b. The valve stem b' engages at
its upper end with a sleeve c a spring d in compression operates to keep the valve
up to its seat and also to keep the sleeve in its highest position as shown in
Figure 1.
The valve body is secured to a tyre e or other object by any suitable means such
as shown and a dust cap f is provided to cover the valves when not in use.
The valve stem 6' is formed with wings or feathers which act as guides and allow
the fluids or liquids to pass freely when the valve is opened.
Figure 2 shows the valve as it would appear in operation, the nozzle g of a pump
or inflator is shown attached to the valve. body a. The act of screwing on the
inflator causes the sleeve c to be pressed into the valve casing by means of the
projection gl formed within g. The sleeve c engages with the spring d and further
compresses the same, by this means the valve becomes free, and will (if in the
vertical position) fall by gravity from its seat if there be no pressure within the
closed vessel; but if there be pressure the valve will be held to its seat, and owing to
the valve being free, only the pressure within the closed vessel will have to be
-overcome when forcing liquid or fluid therein. When the desired pressure is
attained the pump or inflating device is removed the spring d being released causes
the valve to be maintained upon its seat.
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 valve for retaining fluids or liquids consisting of a body formed at one end
with an inwardly flanged part forming a valve seating combined with a loose sleeve
and spring substantially as described.
2. A loose sleeve engaging with a valve stem and spring with the object of com-
pressing the spring to permit of the valve becoming free in its action as and for the
purpose specified.
3. A valve constructed, arranged and adapted to operate substantially as herein
specified.
Dated this 10th day of Februan 1000
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