Improvements in Valves for Football Bladders.
Year: 1897

page_text: Date of Application, 23rd Sept., 1897
Complete Specification Left, 23rd June, 1898-Accepted, 27th Aug.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Valves for Football Bladders.
I, EGBERT COPEMAN FIELD, of Blyburgate Street, Beccles, Athletic Outfitter,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in connection with bladders used for
foot balls, and has for its object to provide a means by which the bladders may
be inflated and deflated more easily than is at present the case.
In carrying out my invention I propose to provide the bladder with a flexible
tube. This may consist of a length of flexible steel tubing or may be made
from leather or rubber. The tube may be fixed so as to project from the bladder,
To this tube I
or may extend inside so as to be completely out of the way.
propose to fix a valve which is placed in the tube and bound with a wire or
fixed in any suitable manner. The valve I propose to employ consists of a tube
or stem fitted within the flexible tube and provided with a small inner tube
having a rubber sheath at its inner end covering the passages. The air is forced
through this inner tube which is screw threaded externally to receive the pump
and pushes back the rubber sheath escaping into the interior of the valve and
thence into the bladder. The inner tube is provided with a square portion
which fits into the passage of the stem, a small nut securing the parts together.
Dated this 23rd day of September 1897.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
Improvements in Valves for Football Bladders.
I, EGBERT COPEMAN FIELD, of Blyburgate Street, Beccles, Athletic Outfitter,
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 relates to improvements in connection with bladders used for
foot balls, and has for its object to provide a means by which the bladders may
be inflated and deflated more easily than is at present the case.
In carrying out my invention I propose to provide the bladder with a flexible
tube. This may consist of a length of flexible steel tubing and may be made
from leather or rubber. The tube may be fixed so as to project from the bladder,
or may extend inside so as to be completely out of the way. To this tube I
propose to fix a valve which is placed in the tube and bound with a wire or

page_text: fixed in any suitable manner. The valve I propose to employ consists of a tube
or stem fitted within the flexible tube and provided with a small inner tube
having a rubber sheath at its inner end covering the passages. The air is forced
through this inner tube which is screw threaded externally to receive the pump
and pushes back the rubber sheath escaping into the interior of the valve and
thence into the bladder. The inner tube is provided with a square portion
which fits into the passage of the stem, a small nut securing the parts together.
In order to more clearly describe this invention reference is had to the accom-
panying drawing which shows in section a valve for a football bladder
constructed according to this invention.
A flexible tube a is inserted into the material of the bladder having an
inwardly projecting portion a¹. Within this tube a a stem is fitted and
secured in place by means of wire or in any suitable manner.
Within the stem 6 is an inner tube c having a rubber sheath at its lower
end covering the passages e. This tube is provided with a square portion c
which fits into the correspondingly shaped portion of the stem b and a small
nut secures the parts together. The tube c is fitted with a screwed portion c
to which the pump is attached. The nut f bears upon the flange and retains
the parts in position.
When inflating the bladder the pump is fitted upon the screwed end and
the air is forced through the inner tube c and pushes back the rubber sheath d
escaping through the passages e into the interior of the valve and thence into
the bladder.
A loop g fits over the end of the valve and serves to keep dust out of it.
It will be seen that by this construction only so much of the valve. as is
absolutely necessary is upon the outer surface of the bladder, the parts projecting
as far as possible into its interior.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is:
-
(1) An improved valve for foot ball bladders comprising a tube projecting
partially into the interior of the bladder, a valve stem arranged within said tube
and a small inner tube to which the pump is attached, the air passing through
said inner tube and forcing the rubber sheath away from the air passages. sub-
stantially as described and for the purposes specified:
(2) In a valve for foot ball bladders, tube a, stem b, inner tube e, having square
portion and screwed end c² to which the pump is attached, rubber sheath d,
passages e, nut f and loop g all arranged and operating substantially as described
with reference to the accompanying drawing.
Dated this 23rd day of June 1898
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.