An Improved Valve for Tyres for Velocipedes
Year: 1898

page_text: An Improved Valve for Tyres for Velocipedes.
FREDERICK PUDNEY, 62, Manor Street, Clapham, London, Waterproofer. I do
hereby declare the nature of this invention to be as follows;-
For the purpose of my invention I make the body of valve with a central hole
running through & into the head, the head to be thick enough to allow a groove
to be cut into the edge, & deep enough to allow a rubber band to encircle it, in the
head & under the rubber band I pierce a hole, connecting with the central hole,
for an inlet, & on the under side of the head & in the body I pierce another hole
for the outlet of air, the valve being held in position with the usual nuts.
Dated this 12th day of January 1898.
F. PUDNEY,
62, Manor Street, Clapham.
An improveⱭ“ valve for Tyres for velocipedes.
I, FREDERICK PUDNEY, of 62, Manor Street, Clapham, London, S.W., Water-
proofer, 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 an improved valve for the pneumatic tyres of bicycles,
tricycles, motor-cars, road-carriages and vehicles, and velocipedes generally, the
novel features of which are simplicity of construction and use, cheapness in the
cost of manufacture, and immunity for the hazard of spontaneous deflation of
the tyre to which it is applied, as compared with such valves hitherto made and
used.
In order that my said invention and the manner of its application and use may
be fully understood, I have hereunto appended a sheet of drawings, of which.
Fig. 1 is a cross sectional view of an ordinary pneumatic tyre to which my said
invention has been applied, and in which it is assumed that the air-bag or chamber
of the said tyre is in a state of inflation.
Figs. 2 and 3 are enlarged vertical central sections of my improved valve, the
former illustrating its position and action when inflating a tyre, and the latter
its position and action when deflating the same.
My invention consists of a cylindrical body A made of any suitable metal or
alloy, the upper end or head of which is so formed as to provide a broad flange B,
and a narrower or more shallow flange or crown C, the distance between B and C
being such as to provide a neck D, of sufficient depth to receive and hold a rubber
or other elastic band or collar E, beneath which the said neck has a bore or pas-

page_text: sage F, communicating with a passage or bore G, extending in a downward direc-
tion entirely through the body A, and beneath the flange B, the said body A has
a second passage or bore H which also enters and communicates with the passage G.
The body A is smooth externally from the flange B in a downward direction for
a suitable distance, from which to the lower end the said body is provided with
an external or male screw thread J, and upon the said smooth part of A is mounted
a sleeve K, of similar or dissimilar metal to that of A, the upper end of which
said sleeve has a broad flange L, preferably of the same diameter or thereabouts
as that of the flange B on A, the external surface of K. having a screw thread
formed thereon extending from end to end, with which engages a suitably shaped
nut or nuts M, while a suitably shaped nut N engages with the thread J upon
the body A, the latter nut being preferably provided with an extension piece P,
for the reception of one end of a piece of chain R, the opposite end of which
carries a suitable dust cap S, adapted to screw upon the lower end of the body A.
In fixing the valve in connection with the air-bag T of the tyre, the body A
would be first passed from the inside of T through a hole made therein, until the
flange B abuts against the inner surface of T, and covers the said hole, when the
sleeve K would be slid upon A until its flange L abuts against the outer surface of
the said bag, when by screwing the nut N upon K the two flanges B and L, may
be brought towards each other, grasping and holding between them the substance
of the air-bag T, and causing the latter to entirely close the passage H in A.
When the tyre is to be fixed upon the rim V of the wheel, the nut N must
be first removed from A, to permit A and K to be passed through the usual hole
in the said rim, when, by placing the nut M upon K and screwing this home, the
rim would be gripped between the said nut M and the flange L of K, thus hold-
ing K firmly in position upon the rim, when by replacing the nut N upon A the
whole may be brought together as illustrated by Fig. 1, the lower end of A being
then covered by a dust proof cup S in the usual way.
To inflate the tyre the said cap S must be removed and the nozzle of the inflator
or pump be screwed upon A, and each outward or down stroke of the piston of
the pump would force air through G and F, the force of which would cause the
elastic collar E to leave the bore F as illustrated by Fig. 2, in which an arrow
indicates the direction of the air through F but when the external pressure of air
is withdrawn by the return or upstroke of the said piston, the elastic band or
collar E would automatically close down upon the passage or bore F and thus
prevent the return of the air in T, and such return motion of the band or collar E
would be more rapid and more pronounced in proportion as the air in T becomes
more compressed, and would effectually prevent the slightest escape of air there-
from when the pump is removed and the tyre is in use.
To deflate the tyre T, the dust cap S must be again removed, and a few turns
be given to unscrew the nut N, when, by imparting a slight upward push to the
body A the flange B may be raised above the tyre T, and thus uncover the pas-
sage Has illustrated at Fig. 3 when the air in T would escape through H and
the passage G, as indicated by the arrows in the same figure.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
(1) The improved air valve for pneumatic tyres, substantially as herein described
and shewn.
(2) In an improved valve for inflating and deflating pneumatic tyres, the com-
bination of a metallic body such as A, having an internal longitudinal bore or
air passage G, in communication with tributary passages or bores F and H, the
said body having a head or crown consisting of a neck D, and upper and lower
flanges C and B, the said neck being encircled by an elastic band or collar E,
adapted to cover and uncover the air passages G, F during the inflating process,
the said body having an externally threaded sleeve such as K, carrying a nut

page_text: such as M, and having a flange L, the inflated chamber T being grasped between
the said flange L and the flange B of A by the tightening of a nut N on A, the
wheel rim being grasped between L and M by the tightening of the latter, the
deflation of T being effected by the loosening of the nut N and the consequent
opening of the air passages H, G, the whole connected, combined, and operating
for the purposes stated and substantially as herein described and shewn by the
accompanying drawings.
Thatod
1000
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, London, E.C.,
Agent for the Applicant.