Improved Means for Securing Air Valves or Nozzles to Inflatable Vessels.
Year: 1893

page_text: Date of Application, 8th Nov., 1893
Complete Specification Left, 4th Aug., 1894-Accepted, 3rd Nov., 1894
PROVISIONAL SPECIFICATION.
Improved Means for Securing Air Valves or Nozzles to
Inflatable Vessels.
I, JONATHAN WILLIAMSON DUNN, of The Hollies, Trent Vale, Stoke-on-Trent
in the County of Stafford, Gentleman, do hereby declare the nature of this invention
to be as follows:-
The air valves or nozzles of pneumatic tyres, air cushions and the like are often
secured by means of two plates upon them one inside and the other outside the
vessel which are forced together so as to compress the india rubber or other
material forming the vessel around the hole through which the end of the air valve
or nozzle is passed. This method although it generally makes an air tight joint
often does not.
According to this invention I remedy this defect by enclosing the end of the air
valve or nozzle which is inside the vessel in a stretched envelope or pocket of thin
india rubber whose edges are cemented or otherwise secured with an air tight joint
either to the inside or outside of the vessel the two plates being then forced
together as usual. A small hole is made in the envelope or pocket corresponding
to the orifice of the air tube or nozzle but the thin stretched india rubber being in
close contact with the latter prevents any air from passing down to and out of the
hole in the vessel.
Dad 71
1
1000
COMPLETE SPECIFICATION.
Improved Means for Securing Air Valves or Nozzles to
Inflatable Vessels.
1, JONATHAN WILLIAMSON DUNN, of The Hollies, Trent Vale, Stoke-on-Trent,
in the County of Stafford, Gentleman, 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 air valves or nozzles of pneumatic tyres, air cushions and the like are often
secured by means of two plates upon them one inside and the other outside the
vessel which are forced together so as to compress the india rubber or other
material forming the vessel around the hole through which the end of the air valve
or nozzle is passed. This method although it generally makes an air tight joint
often does not.
According to this invention I remedy this defect by enclosing the end of the air
valve or nozzle which is inside the vessel in a stretched envelope or pocket of thin
india rubber whose edges are cemented or otherwise secured with an air tight joint
either to the inside or outside of the vessel the two plates being then forced
together as usual. A small hole is made in the envelope or pocket corresponding
to the orifice of the air tube or nozzle but the thin stretched india rubber being in
close contact with the latter prevents any air from passing down to and out of the
hole in the vessel.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation and Figure 2 a transverse section showing a convenient
way of applying my invention to securing the air valve to the pneumatic tube of a
bicycle tyre.
a is the pneumatic tube and 6. is the valve, internally it is of any ordinary
construction, externally it is of the form shown separately at Figure 3. c is a disc
of indiarubber having a tube d of the same material fixed at its centre and forming
one piece with it, this piece is shown in side elevation and plan at Figures 4 and 5.
e is a washer screwing onto the stem of the valve b.
The knob at the end of the air valve is wetted and forced into the tube d the
indiarubber forming, the tube being stretched forms an air tight joint round
the knob.
The tube d is then passed through a hole made in the pneumatic tube a from the
outside and the disc c is cemented to the tube so as to make an air tight joint.
The washere is then screwed on.
.
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. Securing an air valve or.nozzle to an inflatable vessel by enclosing its end in a
stretched envelope or pocket fixed to the vessel.
2. Means for securing air valves or nozzles to inflatable vessels substantially as
described and shown in the drawings.
Dated this 1st day of August 1801
J. W. DUNN.