Improvements in or connected with Valves for Inflating Pneumatic Chambers, Air Cushions, and other similar Articles.
Year: 1897

page_text: Date of Application, 25th Oct., 1897
Cominta Innnifination Lott 25th July 1898-Accepted 27th Aug.. 1898
Improvements in or connected with Valves for Inflating Pneumatic
Chambers, Air Cushions, and other similar Articles.
I, CHARLES PARKER, of Cheapside, Lancaster, in the County of Lancaster, India
Rubber Merchant, do hereby declare the nature of this invention to be as follows:
This invention relates to that class of valve with a hollow plug having air
passages at the sides, which is screwed down upon a seating to close the air
passage.
The plug is applied to the mouth to inflate the article and difficulty is experienced
in closing the valve without allowing an escape of air, thereby diminishing the
pressure.
According to this invention the hollow plug is formed with a cover, projecting
down over the outside of the air tube, so as to provide means for gripping and
turning it without withdrawing it from the mouth. The hollow plug may be
screwed into the air tube or over the exterior of it, or it may be made in one, two
or more parts with a cap or cover with inlet aperture to screw over the air tube and
press the plug down upon the valve seat. Instead of a cap or cover, a projecting
piece or a lip or the equivalent may project from the plug outside the air tube to
provide means for gripping it whilst applied to the mouth.
Or it may be made with an elongated swivel top conical either externally or in-
ternally to be turned off during the act of blowing and be provided with a nozzle
to be fitted over to attach an air pump, or it may be elongated above the milled
flange without a swivel or screw.
To adapt this form of valve for use with an air pump, I provide a nozzle which
can be screwed over the air tube of the valve, fitted at the upper end with a thin
tube over which the tube of the pump can be placed. A cap may be screwed over
the inlet to protect it and be attached to the collar by a chain.
To secure the valve to the material I provide a short tube of rubber
constructed with a flange at one end, which is passed into the interior of the
chamber and cemented thereto, the valve tube being inserted into the rubber tube.
The dow of October 1897
T
3
Improvements in or connected with Valves for Inflating Pneumatic
Chambers, Air Cushions, and other similar Articles.
I, CHARLES PARKER, of Cheapside, Lancaster, in the County of Lancaster, India
Rubber Merchant, do hereby declare the nature of this invention and in what

page_text: manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
This invention relates to that class of valve with a hollow plug having air
passages at the sides which is screwed down upon a seating to close the air
passage.
The plug is applied to the mouth to inflate the article and, as hitherto constructed,
difficulty is experienced in closing the valve without allowing an escape of air
and thereby diminishing the pressure.
The invention consists essentially in so constructing the valve that it can be
screwed down to close the inlet aperture without withdrawing or forcing the mouth-
piece from the mouth and thus maintain the full pressure in the article that has
been attained.
It will be fully described with reference to the accompanying drawings in which
as examples several modifications of the valve are illustrated.
Fig. 1. Elevation of one form of the valve.
Fig. 2. Longitudinal section of same.
Fig. 2. Sectional elevation of another modification.
Fig. 3. Elevation of a modified form.
Fig. 4. Elevation showing another modification.
Fig. 5. Elevation of another modification.
Fig. 6. Sectional elevation of Fig. 5.
Fig. 7. Transverse section on line y Figs. 2 and 6.
The hollow plug A is made in the usual way with apertures a in the side near
the bottom and screws down into the tube B which forms a cover for the lower
end and provides a seating b for the valve a¹. The covering tube B is provided
with a milled flange 61 which forms means for gripping it during the operation of
blowing the air and closing the valve without removing it from the mouth.
The hollow plug is provided with a projecting piece 1) with a lip d for applying
to the mouth and a flange d for holding it by during the operation of blowing and
for turning it to screw down the valve a¹ upon its seating and close it without
removal from the mouth or loss of air or pressure.
The lip d is preferably of the shape shown in Figs. 1 and 2 and made to swivel
upon the tube D, but if desired it may be made flaring or funnel shape as shown
in Fig. 24.
In Figs. 1 to 4 the flange b' on the covering tube B is placed at the upper edge
which is the position I at present prefer.
In Figs.
and 6 the flange 61 on the covering tube B is shown at some distance
from the edge as it may be found more convenient for handling if the two flanges b¹
and do not come close together.
In Fig. 3 the lip d is shaped to form a nozzle to receive the rubber tube of an
air pump and is preferably made to swivel as in Figs. 1 and 2 to permit of the
plug A and projecting piece D turning readily to close the valve without turning or
twisting the tube of the air pump.
In Fig. 4 the lip d is provided with a screw thread to receive the tube of an air
pump and is fitted with a cap E to be screwed over the inlet to protect it and
prevent the entrance of dirt or dust. In this case the lip d also preferably swivels
and is provided with a collar or flange e. The cap E is attached to the collar e by
a chain F.
To secure the valve to the air chamber, cushion or other article it may be fitted
in the usual way or a short tube of rubber may be applied to the article with a
flange at one end, which is passed into the interior of the chamber and cemented
thereto, the valve tube being inserted into the rubber tube.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. A valve for inflating pneumatic chambers such as air cushions and other articles

page_text: constructed with a piece projecting beyond the valve plug to permit of the valve
being screwed down to close the inlet aperture without the mouthpiece being
withdrawn or forced away from the mouth substantially as and for the purpose
described.
2. A valve for inflating pneumatic chambers such as air cushions and other
articles having the several parts constructed and arranged in combination
substantially as described and shown with reference to either of the figs. of the
drawings.
WM P. THOMPSON & Co.,
Manchester, Liverpool & London, Patent Agents.
WM P. THOMPSON & Co.,
Manchester, Liverpool & London, Patent Agents.