Improvements in Valves applicable for use more especially in connection with Pneumatic Tyres.
Year: 1891

page_text: Date of Application, 23rd Oct., 1891
Complete Specification Left, 22nd July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Valves applicable for use more especially in
connection with Pneumatic Tyres.
I, PRESTON DAVIES, of No. 12 Kempson Road, Walham Green, Fulham, in the
County of Middlesex, Watchmaker, do hereby declare the nature of this invention
to be as follows:-
My invention relates to improvements in valves applicable for use more especially
in connection with pneumatic tyres and has for one of its principal features a means
for locking such a valve.
In carrying out my invention I take a brass or other metallic tube and at a
suitable distance, preferably about half-way, down it I rigidly secure a disc having
an aperture in its centre of square, triangular, or any suitable shape, other than
circular, for the purpose hereinafter mentioned.
This disc is preferably studded with holes to allow air to pass through. A flat
metallic disc, having a washer of india rubber, leather, or other suitable material
capable of forming a seating, fitted underneath it, covers one end of the tube. This
disc has a pin or spindle affixed to its centre which runs along inside the tube and
is of sufficient length to project at the opposite end of such tube. A collar of
metal, shaped to correspond with the aperture in the disc first above mentioned, is
fixed about half-way down the pin or spindle, and passes through such aperture,
thus preventing the pin or spindle from turning on its axis. The projecting
end of the pin or spindle is tapped with a screw thread on which a nut is fitted to
The nut bears against the disc fixed inside the tube, and, as the pin or
spindle is prevented as above described from turning on its axis, the valve, upon
the nut being screwed up, is drawn tightly on to its seating and so locked.
turn.
The valve when used in connection with a pneumatic tyre is inserted in the
rubber tube which projects from the air tube and is secured thereto in any
convenient way so that it can be taken out without disturbing the air tube.
Dated this 23rd day of October 1891.
PRESTON DAVIES.
COMPLETE SPECIFICATION.
Improvements in Valves applicable for use more especially in
connection with Pneumatio Tyres.
I, PRESTON DAVIES, of 12 Kempson Road, Walham Green, Fulham, int the
County of Middlesex, Watchmaker, 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:-
My invention relates to improvements in valves applicable for use more especially
in connection with pneumatic tyres, a feature whereof is a ready and secure means
of locking the same.
The annexed drawings, which are made to a sufficiently enlarged scale to admit
of the parts being clearly shown and to which reference is hereinafter made,
illustrate my invention, Fig. I being a longitudinal section and Fig. 2. a transverse
section through the line a-b.
In carrying out my invention I form a tube of brass or other metal, O, the inner
circumference of which is for the greater part of its length circular in transverse
section, but a portion, c, thereof is square, triangular, or any suitable shape, other
than circular, for the purpose hereinafter mentioned. A pin or spindle, 8, runs

page_text: along inside the tube and is of sufficient length to project beyond it as shown at, f
This pin or spindle is constructed with a dist, g, to cover one end of the tube, O,
and with the portion, h, of its length of square, triangular, or other transverse
section to correspond with, and fit loosely into, the portion, c, of the tube; or the
pin or spindle, in lieu of this enlargement, may be provided with a collar having a
like conformation to the portion, h; as described. The opposite extremity of the
pin or spindle is tapped with a screw-thread as shown at, over which a nut, R,
works. A washer of india-rubber or other suitable material, k, is sprung into a
groove under the disc, g, as shown. A collar, 1, protects the disc, g, and the
washer, k. The outer circumference of the tube, O, at its opposite end is tapped
as shown to admit of attaching the air pump to it when inflating the tube and
to admit of the cap, V, threading over it after the tyre is filled aud so protecting
the. internal parts of the valve from dust and wet. The cap is provided with
a seating of india-rubber or other suitable material, m.
When a tyre provided with the valve as above described has been filled, the valve
is locked by turning the nut, R. The nut bears against the portion, e, of the tube
and, as the pin or spindle is prevented from turning on its axis by reason of. the
portion, ; fitting into the portion, c, of the tube, upon the nut being turned, the
disc, is drawn tightly on to its seating and so locked.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is :-
--
In a valve the combination with a tube, O, provided internally with a square,
triangular, or like conformation, c, of a pin or spindle provided externally with_a
corresponding conformation, h, and having a disc, g, and washer, k, and of a nut, R.,
and collar,, all substantially as set forth and for the purposes specified.
Dated this 22nd day of July 1892.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.