Improvements in the Valves of Pneumatic Tyres, Footballs, and other Inflating Articles.
Year: 1893

page_text: Date of Application, 1st July, 1893
Complete Specification Left, 22nd Mar., 1894-Accepted, 19th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in the Valves of Pneumatic Tyres, Footballs, and
other Inflating Articles.
I, WILLIAM PEARSON, of Vauxhall Road, in the City of Birmingham, Cycle
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction and arrangement of
the valve parts of pneumatic tyres, or in the valves of footballs and other inflating
articles, and my said invention consists, in the one part, in a pull-home lock for the
valve plug in the second part, in an inner circle grip for connecting the tyre to
the valve body part under the head, and in the third part, in detail improvements
in the fitting of the said parts.
The valve body part consists of an outside screwed hollow or tubular member,
with the fore part also screwed and reduced in diameter, whilst the other or back
end carries a head, with the inner face sunken or annularly cone-recessed, wherein
the rubber of the tyre is centrically forced or seated by a he-coned adjacent faced
washer threaded on the stem, and forced home by a faceted and collared nut, which
impinges upon the off or outer side of the said washer, and forces home the same,
thereby gripping the material rubber tyre between the opposed he and she coned
faces as aforesaid, thereby preventing the said tyre material, such as rubber, being
pulled from the inner circle.
The faceted and collared nut, a part of which passes through the rim of the tyre,
is kept home by a lock nut screwed at the back of it.
The axial hole in the body member has a coned seating near its head end,
wherein lies a rubber covered plug carried by a stalk with one end screwed, and
the other end looped or provided with a long eye or piercing, wherethrough a cross
pin, directed laterally through the head of the body part, passes and prevents the
rotation of the said stalk, with its valve. This valve stalk is a little longer than
the body member, so that the screwed end extends outwardly beyond the shoulder
of the screwed end of the said body member, and upon which said screwed end of
the stalk, a hollow cap or nut takes, with its inside shoulder abutting against the
said end of the body member.
By rotating the cap, the plug or valve on the stalk is drawn full home to its
seating and there locked, so that the soundness of the valve does not depend upon
the internal air pressure of the tyre acting upon the plug, but the said plug is
pulled or pressed home by an auxiliary means in the form of a propelling and
repelling cap.
Thus the plugs of ordinary valves are kept to their seatings by the inside air
pressure of the tyre aloue, which is oftentimes insufficient for keeping the same up
to its seat and so rendering the valve perfectly sound.
When the pull-home nut or cap of the plug is repelled or removed, the valve
admits of making a slight free longitudinal novement for the removal of the plug
from its seat for inflation, after the tip of the inflator or air pump has been screwed
upon the outside screwed end of the body part.
Dated this 30th day of June 1893.
WILLIAM PEARSON,
By Henry Skerrett,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Valves of Pneumatic Tyres, Footballs, and
other Inflating Articles.
I, WILLIAM PEARSON, of Vauxhall Road, in the City of Birmingham, Cycle
Manufacturer, 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 the valves of pneumatic tyres, or the
valves of footballs and other inflating articles, and my said invention consists, in
the one part, in a pull-home lock for the valve-plug; in the second part, in an
inner circle grip for connecting the tyre to the valve body part under the head, and
in the third part; in detail improvements in the fitting of the said parts.
The valve body part consists of an outside screwed hollow or tubular member,
with the fore part also screwed and reduced in diameter, whilst the other or back
end carries a head, with the back shoulder of it concave coned upon which the
rubber of the tyre is centrically forced or seated by a he-coned faced adjacent
washer threaded on the stem, and forced home by a faceted and collared nut which
impinges upon the off or outer side of the said washer, and forces home the same,
thereby gripping the material of the rubber tyre between the opposed he and she
coned faces as aforesaid, thereby preventing the said tyre material, such as rubber,
from being displaced by undue inflation of the tyre.
The faceted and collared nut, is kept home by a lock nut screwed upon the
hollow body part of the valve.
The head end of the body member has a coned or rubber seating, upon which
comes the inner face of the head of a plug raised and lowered from its seating by a
screwed stalk directed through the hollow axis of the body, and being kept from
rotating and becoming detached from the valve body by a cross pin.
By rotating the stalk the plug or valve is drawn full home to its seating and
there locked, so that the soundness of the valve does not depend upon the internal
air pressure of the tyre acting upon the plug, but the said plug is pulled or pressed
home by an auxiliary means in the form of a propelling and repelling stalk.
Thus the plugs of ordinary valves are kept to their seatings by the inside air
pressure of the tyre alone, which is oftentimes insufficient for keeping the same up
to its seat and rendering the valve perfectly sound.
When the pull-home stalk of the plug is removed the said plug admits of
making a slight free longitudinal movement so as to admit of the head of the same
being lifted from the seating during inflation and being forced home to it after
inflation.
Figure 1 of the accompanying drawing represents in elevation, the inner tube of
a pneumatic tyre and a rim in section, provided with a pull-home valve constructed,
arranged and fitted according to my invention.
Figure 2 represents a complete longitudinal vertical section of Figure 1, upon an
enlarged scale, with the valve, or the plug of the same, closed.
Figure 3 represents a like view as Figure 2 but with the valve, or the plug of
the same, open or in a position which it assumes during inflation.
Figure 4 represents a section of the valve upon the dotted lines A B Figure 2.
Figure 5 represents an elevation and a topside plan of the body of the valve
separately.
Figure 6 represents a section and underside plan of the plug separately.
Figure 7 represents a section and an elevation of the stalk separately.
Figure 8 represents a modification of the plug, in which the rubber seating is
formed upon the head and Figure 9 represents the form of body used with the
said plug.

page_text: The same letters of reference indicate corresponding parts in the several figures.
of the drawing.
The valve consists of three cardinal parts, viz., an outside screwed hollow
member body part a, a rising and falling plug b, and a locking stalk c. The former
member has a head a', at one end and a reduced neck or shank a², at the other end,.
upon which latter end, the connection part of an inflator takes. The head of the
body part has upon its front or outer face, a rubber seating a³, and is concaved
coned upon the back shoulder a', whilst the middle body part a³, is outside
screwed, upon which a convexed faced or cupped washer d, is threaded and grips.
the surrounding rubber e', of the inside tube e, of the tyre, between itself and the
concaved shoulder a*, by the screwing up of a collared stop nut f and a locking
nut 9, which latter comes upon the outer side of the rim h, coming between the
said nuts.
The body part has a hollow interior as, and the neck a² has an axial hole a',.
through it. Freely fitted within the said hollow body part a, is the stem b¹, of the
plug, which has a head 62, whose underside takes upon the rubber facing or
seating a, when the valve is closed, but is capable of being lifted therefrom by the
force of inflating air as in Figure 3. This plug is prevented from turning by a
cross screw or keep pin i, which is passed through the walls of the body part a,
and takes through a clearance 63, made transversely through the stem 61, of
the plug b.
Passing axially up the hollow a', of the neck a², is a stalk c, with its screwed.
end c', taking up the axial screwed hole , in the stem of the plug b, whilst the
underside c², of the head or cap c³, of the stalk c, impinges upon the end a³, of the
neck a², so that by rotating the said stalk in one direction, the plug is pulled full
home to its seating, whilst by rotating it in the other direction, the stalk is
unscrewed from the plug and can be removed, so as to admit of the connection part.
of the air pump being screwed upon the neck a², and the tyre inflated in the
usual way.
Figure 10 represents a further form of valve body with the securing washer of
the inner tube constructed according to my invention.
a is the valve body, a' is the head of the same, a' is the sunken shoulder under
the head, whilst d is the securing washer, with coned seating d', adapted to affix
the walls e', of the inner tube e, of the tyre between the said washer d, and head a',.
on the nut, being screwed home.
OPERATION.
Assuming that the tyre requires to be reinflated, turn the stalk from left to
right, when it becomes detached from the stem of the plug and is then withdrawn
from the valve as in Figure 3. Now place the air-pump connection upon the
screwed neck a², and force home the inflating air, which insinuates itself past
the plug, which becomes lifted and its head removed from the seating as in
Figure 3.
On the tyre becoming sufficiently inflated and on the forcing of air through the
valve having ceased, the plug is forced upon its seat as in Figure 2, then by
placing the screwed stalk in position and screwing the same home, the head of
the plug is drawn further down upon its seating and a pull home lock of the plug
is thereby made.
The application of my invention to footballs, air pillows and other inflating
articles differs in no essential respect from its application to pneumatic tyre valves
as herein described.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. A valve for pneumatic tyres and other inflating articles, having a pull-
home lock substantially as and for the purpose as described and set forth.

page_text: Secondly. A valve for pneumatic tyres and other inflating articles, having a
pulled-home plug pulled home or released by a turning stalk or equivalent,
substantially as described and set forth.
Thirdly. A valve for pneumatic tyres and other inflating articles, having three
cardinal members or parts, viz., a body part a, a plug b and a turning stalk c,
substantially as and for the purpose as described and set forth.
Fourthly. In air valves for pneumatic tyres and other inflating articles, the
general construction, arrangement and combination of the parts substantially as
and for the purpose as described and set forth.
Fifthly. In the bodies of air valves for pneumatic tyres and other inflating
articles, the general construction of the same, substantially as described and
set forth.
Dated this 20th day of March 1904
WILLIAM PEARSON,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant.