An Improved Valve for Inflated Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1891

page_text: Fate of Application, 5th Jan. 1891
Complete Specification Left, 5th Sept., 1891-Accepted, 31st Oct.,
1891
PROVISIONAL SPECIFICATION.
An Improved Valve for Inflated Tyres for the Wheels of Velocipedes
and other Vehicles.
We BERTRAM BLOUNT, Quinta Sidcup Kent Analytical and Consulting Chemist
and WILLIAM JOHN ATKINSON BUTTERFIELD, Ebor House. Sidcup, Kent,
Gentleman, do hereby declare the nature of this invention to be as follows:-
A vulcanized india rubber tube moulded or bent at right angles, and strengthened
if necessary with a layer of canvas or other suitable material is inserted into and
attached by any suitable means to the air tube of an inflated tyre as commonly
used for the wheels of velocipedes and similar vehicles in such a manner that one
limb lies within the air tube against the side next the rim, while the other projects
through the rim and serves to make communication with the interior of the air-tube
from the outside. In the first limb (that is to say the one lying within the air
tube of the tyre) is a cylindrical rod of vulcanite, metal or other suitable material
of such diame'er that it fits closely within the vulcanized rubber tube. This rod
is prevented from being driven out of the vulcanized rubber tube by a short
perforated and grooved plug of vulcanite, metal or other suitable material inserted
in the end of the vulcanized rubber tube and secured thereto. The external limb
of the vulcanized rubber tube is inserted into a metal tube brazed or otherwise
attached to the metal rim of the wheel to which the tyre is applied. The end of
this metal tube remote from the rim is provided with an external screw thread,
upon which a screwed cap bearing a central projection or plug can be screwed
closing the end of the interior vulcanized rubber tube.
Dated this 3rd day of January 1891.
BERTRAM BLOUNT.
WM. J. A. BUTTERFIELD.
COMPLETE SPECIFICATION.
An Improved Valve for Inflated Tyres for the Wheels of Velocipedes
and other Vehicles.
BERTRAM BLOUNT Quinta, Sidcup, Consulting Chemist and WILLIAM JOHN
ATKINSON BUTTERFIELD Ebor House, Sidcup 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 nature of our improved valve is as follows:-A vulcanized india rubber
tube (D) moulded or bent at right angles is inserted into and attached by any
suitable means to the air tube (B) of an inflated tyre (C) as commonly used for
the wheels of velocipedes and other vehicles in such a manner that one limb lies
within the air tube against the side next the rim (A) while the other projects
through the rim and serves to make communication with the interior of the air
tube (B) from the outside. (In some cases we have found it desirable to strengthen
the rubber tube in places other than where it envelopes the plug (E) to be
mentioned later with canvas or similar material). In the first limb (that is to say
the one lying within the air tube of the tyre) is a cylindrical rod (E) of vulcanite,
metal, or other suitable material of such diameter that it fits closely within the
vulcanized rubber tube (D). This rod is prevented from being driven out of the
vulcanized rubber tube by a plug (F) perforated longitudinally and grooved on
the end facing the vulcanite or metal plug (E) aforesaid, which is inserted in the
end of the vulcanized rubber tube (D) and secured thereto. The external limb

page_text: of the vulcanized rubber tube is inserted into a metal tube (G) brazed or other-
wise attached to the rim (A) of the wheel to which the tyre is applied. The end
of this metal tube (G) remote from the rim (A) is provided with an external screw
thread upon which a screwed cap (H) either bearing a central conical projection or
plug fitting into the rubber tube (D) or having a washer of rubber or leather or
other suitable material pressing against the end of the metal tube (G), fits thus
closing the external limb of the tube (D) air-tight.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
(1) A valve for inflated tyres consisting of a right angled vulcanized rubber
tube of which one limb lies within the air tube of the tyre on the side next the
rim of the wheel, and contains a plug as described.
(2) The combination of a valve for inflated tyres consisting of a right angled
vulcanized rubber tube of which one limb lies within the air tube of the tyre on
the side next the rim of the wheel and contains a plug as described, with a screwed
cap closing the external limb of the valve air tight.
Dated this Fourth day of September 1891.
BERTRAM BLOUNT.
W. J. A. BUTTERFIELD.