An Improved Construction of the Supply Air Pipe for the Inflation of Pneumatic Tyres.
Year: 1892

page_text: Date of Application, 13th Oct., 1892
Complete Specification Left, 8th July, 1893—Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
An Improved Construction of the Supply Air Pipe for the Inflation
of Pneumatic Tyres.
THE IXION COMPANY LIMITED a company incorporated under the Companies'
Act whose registered office is at the Ixion Works Crabbs Cross Redditch in the
County of Worcester and ARTHUR JOSEPH SIMPSON of the same place Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
―:
The invention consists of an improved construction of the supply air pipe for the
inflation of pneumatic tyres for wheels of cycles and other vehicles.
A metal pipe is attached to the rim of the wheel and also joined hermetically to
the bladder of the tyre in the ordinary way. The end of the pipe connected with
the bladder is enlarged and the hole countersunk and a screw thread cut on the
interior of the pipe. A metal plug having a butted end corresponding with the
countersunk end of the pipe is screwed in until the butt fits tightly into the hole.
The other end of the plug projects through the pipe and enables it to be moved up
or down as the case requires. A hole is run down the plug having its outlet
through the side immediately above the butt end in such a manner that by screwing
the plug down a passage is opened and by reversing the passage is closed.
Dated the 13th day of October 1892.
COMPLETE SPECIFICATION.
An Improved Construction of the Supply Air Pipe for the Inflation
of Pneumatic Tyres.
THE IXION COMPANY LIMITED a company incorporated under the Companies'
Acts whose registered office is at the Ixion Works Crabbs Cross Redditch in the
County of Worcester and ARTHUR JOSEPH SIMPSON of the same place Manu-
facturer, 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 invention consists of an improved construction of the supply air pipe for the
inflation of pneumatic tyres for the wheels of cycles and other vehicles.
A metal pipe is attached to the rim of the wheel and also joined hermetically to
the bladder of the tyre in the ordinary way. The end of the pipe connected with
the bladder is enlarged and the hole countersunk and a screw thread cut on the
interior of the pipe. A metal plug having a butted end corresponding with the
countersunk end of the pipe is made with a screw thread on its outer surface
corresponding with the thread on the interior of the pipe and is screwed in until
the butt fits into the countersunk hole. The other end of the plug projects through
the pipe and a milled edged nut and lock nut are screwed thereon by turning
which when locked or by other well known mechanical means the plug is moved up
or down as the case requires. The projecting end of the plug may be reduced and
a finer screw thread cut thereon. A hole is run down the plug having its outlet
through the side immediately above the butt end in such a manner that by screwing

page_text: the plug down a passage is opened and by reversing the passage is closed. The
parts may be constructed of metal or any other suitable material.
In the accompanying drawings Fig. represents the supply air pipe open to
admit or allow of the escape of the air. In this figure A. is the metal pipe
attached to the bladder of the tyre. B. the enlarged end and C. the countersunk
hole. D. represents the metal plug working up or down A. E. is the hole through
which the air passes to or from the tyre and F. is a flexible washer to ensure the
junction of A. & D. being air tight. G. represents nuts and washers for fixing the
supply air pipe to the rim of the wheel. H is the milled edged nut and I the lock
mut. Fig. 2 represents the supply air pipe closed and Fig. 3 is D. in Fig. 1 in
section showing the air passage.
Having now particularly described and ascertained the nature of our sain inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
(1.) A means whereby the closing of the supply air pipe to the pneumatic wheels
of cycles and other vehicles is rendered absolutely air tight.
(2.) Simplicity of construction whereby greater ease is obtained in the inflation
and deflation of the said tyres.
(3.) Immunity from deflation of the said tyres when the supply air pipe is closed
on account of the impossibility of any portion of the supply air pipe being detached
through vibration or other cause.
In witness whereof the said Arthur Joseph Simpson has hereunto set his hand
and seal and the common seal of the Ixion Company Limited has been
hereunto affixed this 7th day of July 1893.
ARTHUR JOSEPH SIMPSON.
The common seal of the Ixion Company Limited was hereunto affixed in the
presence of
A. J. SIMPSON, Director.