Year: 1895

page_text: I, CHARLES KINGSTON WELCH. of The IIollies, Eaton Road, Coventry, in the
County of Warwick, Engineer, do hereby declare the nature of this invention
to be as follows :-
:-
This invention relates to valves chiefly intended for use with pneumatic tyres for
the wheels of road vehicles.
One object of the said invention is to construct the head of the tubular body
Bufficiently narrow to allow the edges of the tyre cover with their cores or
equivalents to pass freely into place between the said head and the sides of narrow
rims now in demand and still have sufficient width to ensue a good and secure joint
with the rubber inflatable tube or chainber.
Another object of this invention 18 to provide an improved wesher to hold or
retain the sides of the rubber inflatable tube in such a manner as to leave a free
passage for the edges of the cover when attaching or placing the same in position on
the rim previous to inflation whereby the risk of nipping the tube under the cores
is minimised. By this construction the cores are not so liable as heretofore of being
Recidentally left by inexperienced operators eccentric to the rim. This improved
washer also gives increased support to the joint made between it and the head of
the valve body.
A further object of this invention is to dispense with the necessity of providing a
flat on the tubular valve body usually adopted to prevent rotation of the said
body in the inner inflatable tube when attaching or detaching the pump or
accessories of the valve.
In carrying my invention into effect I make the head of the tubulai valve body
of a width sufficiently narrow and preferably with flat sides to allow 100m for the
edges of the tyre cover with their cores or equivalents to pass in freely between the
sides of the rim and the said head, and I provide the washer that beats on the rim
with edges that are turned up against the sides of the head so as to keep the
inflatable tube at that part thereof near the valve away from the sides of the rim.
The amount of such turning up of the edges of the washer is in some instances but
slight so as to merely direct the sides of the tube away from the bottom of the rim,
while in other instances it is more considerable.
In all cases where the turned up edges are used they operate in combination with
the flat sides of the head of the valve body to prevent the tubular valve body from
rotating in the inner inflatable tube and rim when the pump or parts of the
valve are being connected or disconnected, and thus prevent injury to the joint.
In order to ensure that the washer and head shall have sufficient gup on the
inflatable tube to prevent leakage of air around the valve body I reduce the, width,
of the latter at that part immediately under the head so as to obtain an increased
grip round the joint upon the rubber tube. When fixing the valve in position I
pass the body through the hole provided to receive it in the rubber tube and I then
solution or otherwise fasten a piece of fabric to the tube to support the joint at this
part; I next press the edges of the rubber and fabric into the recess aforesaid
under the head and secure it by the washer above referred to and a out. 1
sometimes provide the washer with a non-circular hole or recess and fit therein a
filling pieco or piecos to engage with the flats or recesses cut in the valve body.

page_text: The filling is held in place by a suitable retaining out and ensures an ample grip
on the outer surface of the tube. This is another arrangement to prevent the
rotation of the valve body
In some instances I use a divided washer made to engage with the cuts or
recesses in the valve body. The parts of this washer are held together by a nut
which is provided with an annular shoulder er with a recess to fit or receive the
washer or is otherwise suitably constructed for this purpose.
The washer is made to fit the rim so that it cannot turn, or it may be received
in a non-circular recess provided in another washer that fits the um. With this
construction, the tubulai valve body need not have a flat formed thereon as is
usual An important advantage arising from the avoidance of flats on the
tubular valve body is that there 18 less chance of water leaking through into the
tyre and thus destroying the fabric. As a further security against the admission
of water, a leather, fibre, rubber or other suitable washer may be used under the
nut connecting the valve body with the rim
These improvements are applicable more especially to valves of the kind or class
described in the Specifications of prioi Letters Patent No. 4175 of 1891 and No 3462
of 1893 and also to many other well-known valves. When applied to valves of the
kind described in the aforesaid Specification No. 3462 of 1893 the tubular body
may be fitted with a suitable non-return valve such for example as any of those
described in the aforesaid Specification No. 4175 of 1891 with or without the
modifications hereinafter described. One advantage of this combination is that
the non-return valve proper may be removed for examination or repair without
necessarily deflating the tyre. In some ustances I fit the tubular valve body with
a suitable ball, cono or spindle, flanged, coned or cthor wise shaped in combination
with a suitable valve seat.
In cases where the head is reduced very much to fit very narrow aims I sometimes
provide in combination with or in lieu of the other devices above described a conical
shaped rubber washer or tent engaging with a suitably formed head to prevent
leakage of air around the valve body. The washer or teat may be moulded
utegially with the air tube.
I preferably make the end of the connector between the valve body and the pump
conical to fit the pump connections and the dust cap. The dust cap is made with
a recess at the end so as not to bear upon the comical point of the connector.
It 18
fitted with a lead, vulcanite or other seating to prevent leakage The pump
connections may be similarly fitted. I sometimes made the pump connector in one
piece with the cap that seals the end of the valve body. The spindle or stem of
the non-retuu valve where such is used is secured to this cap by serowing in
combination with a suitable device for making a sound joint. I sometimes provide
the stem with a flange and washer or washes in which case it is not secured to
the cap but is constructed to make a sound joint therewith. I sometimes made the
stem of vulcanite, lead, or cther soft metal or material that will not attack tho
rubber. In such case the washer may be dispensed with. The stem may be made
oval or other shape, or it may be round and solid and have flutes or grooves cut in
its side to serve as the passages for the au. The end of the stem is sometimes
provided with a head to prevent the blowing off of the rubber valve tube when such
is used. The air passages through the reduced part of the valve body are made of
reduced size to ensure sufficient strength in the body. They also serve to prevent
the valve rubber being blown into the inflatable tube. The tubular valve body
especially when used for cycle wheels may be made of much smaller diameter than
has been usually the case with certain classes of valves, so that great lightness is
obtained and it is then not necessary to make a large hole in the rim which is an
important consideration in light and narrow runs.
Dated this 8th day of May 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements in Valves.
I, CHARLES KINGSTON WELCH, of Park House, Coventry, in the County of
Warwick, late of The Hollies, Enton Road, Coventry, aforesaid, Engineer, 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 valves chiefly intended for use with pneumatic tyres for
the wheels of road vehicles.
One object of the said invention is the construction of the head of the tubular
valve body sufficiently uartow to allow the edges of the tyre cover with their cores
on equivalent retaming devices to pass freely into place between the said head and
the sides of narrow runs now in demand, while at the same time the head shall
have sufficient gup on the rubber inflatable tubo or chamber to ensure a good and
secure joint therewith.
Another object of this invention is the provisiou of an improved washer to hold
or retain the sides of the rubber inflatable tube in such a manner as to leave a free
passage for the edges of the cover when placing the same in position on the rim
previous to inflation whereby the risk of aipping the inflatable tube under the
cores or edges of the cover is minimised. By this construction the cores are not
as liable as heretofore to be accidentally left in a position eccentric to the rim.
The said improved washer also gives increased support to the rubber between it
aud the head of the valve body
A further object of this invention is the provision of efficient means for
preventing the rotation of the tubulai valve body with respect to the inflatable
tube when attaching or detaching the pump or accessories of the valve in lieu
of or in combination with the flat or flats usually provided on the said body for this
purpose.
Other objects of the said invention are improvements in detail hereinafter fully
described.
Referring to the accompanying drawings,
Figure 1 is a longitudinal central section through a valve constructed according
to this invention, the same being shown applied to the rim of a velocipede wheel.
Figure 2 18 a transverse section of the um, and shows the valve in side
elevation.
Figure 3 is a side elevation of the valve detached from the rim.
Figures 4 and 5 are two views of the tubular valve body.
Figures 6, 7 and 8 are side view, plan, and eud view respectively of a washer
hereinafter described
Figures 9 and 10 are views of the retaining nuts detached.
Figure 11s a central longitudinal section, of the valve stem and valve propei.
Figure 12 is a side view of the valve stem alone.
Figme 13 is a side view, and
Figure 14 is a central longitudinal section of the valve stem and valve prope
applied to the connector.
Figue 15 is a central longitudinal section of a slightly modified valve,
Figure 16 18 a side view of the valve stem and valve proper detached.
Figure 17 is a side view of the valve stem alone.
Figure 18 sa cential longitudinal section of the valve stem and valve
proper, and
Figure 19 is an end view of the same.

page_text: Bingmery mourned form of valve stem,
Figure 20 is a central longitudinal section of the connector and dust cap.
Figure 21 is a plan of a modified form of washer and filling piece hereinafter
described, and shows the neck of the valve body in section.
Figure 22 13 a plan of the washer alore, and
Figure 23 is a plan of the filling piece.
Figure 24 is a transverse section through the m of a carriage wheel fitted
with a pneumatic tyre having a valve shown in longitudinal central section
constructed according to this invention
Figure 25 is a cential section of the said parts taken on a plane at light angles
to that in Figure 24
Figures 26 and 27 are two views of the tubular valve body.
Figure 28 18 a plan, and
Figure 29 18 a side view of a washer to fit said valve.
Figure 30 is a side view of the valve body fitted with a split washer and peculiar
nut shown on section and hereafter described
Figure 31 is a plan of the washer.
Figure 32 is a transverse section of a um of a carriage wheel and tyre, showing
the valve in elevation, and also showing a modified washer hereinafter described.
Figure 33 is a central section taken in a plane at right angles to that in
Figure 32.
Figure 34 :s a view of the washer detached
Figure 35 is a side view partly in section of a tubular valve body furnished with
an internal valve seat and ball valve
Fige 36 illustrates a modified mode hereinafter described of attaching the
valve body to the inflatable tube by means of a teat.
Like letters denote comesponding parts throughout the drawings
A is the metal in of the wheel, B is the tyre cover; C is the inflatable tube;
Dis the tubular valve body which is passed thiough a hole in the inflatable tubo
and through another in the 11m in the usual manner, the head D¹ of the valve body
being retained inside the inflatable tube.
The valve shown in Figures 1 and 15 is one in which an india rubber tube forms
the valve proper. That shown in Figures 24 and 25, and in Figures 30, 32 and 33
15 one in which the closure of the passage through the valve body is eflected
by compressing the inflatable tube between the um and the head of the valve
body as described in the Specification of por Letters Patent No 3462
of 1893.
The head D of the valve body is made sufbeiently narrow to allow room for the
edges 13 of the tyre cover with their cores B' or equivalent retaining devices to
pass in and out ficely between the sides of the m A and the said head D', when
attaching and detaching the cover, and the retaining washer E is furnished with
flanges or shoulders E' as shown to keep the inflatable tube at that part the cof
near the valve away from the bottom and sides of the rim. The depth of the sand
Hanges or shoulders is in some instances but slight so as to merely duect tho
sides of the tube away from the bottom and sides of the rim, while in other
instances it is more considerable. For a bicycle such as that shown in
Figure the washer E ests on the bottom of the rim in the well-krown manner
and supports the head D when the valve body is screwed tight to the um by its
The washet E shown in Figures 24 and 25 is received in a recess a in the
rim which allows the head D' to close the apertures though the valve by pineling
the rubber between it and the im. In neither case can the washer tun round in
the rim
The shoulders E of the washer operate in combination with the fat
sides of the head D' of the valve body to pievent the rotation of the latter in
the hole in the inflatable tube C and in the um when the pump or pails of the
valve are being connected or disconnected, and they thus prevent injury to the
Joint between the valve body aud inflatable tube.
nut G

page_text: In order to ensure that the washer E and head D' shall have sufficient grip on
the inflatablo tube to prevent leakage of air around the valve body the width
of the latter is reduced at that part immediately under the head by forming
recesses therein as shown at D' so as to obtain an increased grip upon the rubber
tube around the edge of the hole When fixing the valve in position the tubular
valve body is passed through the hole provided to receive it in the rubber tube
and a piece of fabric is then solutioned or otherwise fastened to the tube to
support and stiffen the rubber at this part, the edges of the rubber an fabric
around the hole aforesaid are next pressed into the recesses D' under the head
and are secmed by the washer E and unt F. The washer is sometimes provided
with a non-en cular hole as shown in Figure 22 in which hole is fitted a filling
piece E Figure 23 having flat sides that enter the recesses D' and engage with
the Ant sides of the valve body as shown in Figure 21. The said filling picce
which is held in place by the nut F ensures an ample grip on the tube, and
prevents the rotation of the valve body in the washer.
In some instances a divided washer as shown in Figure 31 is provided to engage
with the recesses D in the valve body. The parts of this washer are held together
by a nut F Figure 30 which is provided with an aunular shoulder F adapted to
fit in an annular recess in the washer, or the nut is otherwise suitably constructed
for this purpose. The washer as before stated is made to fit in the rim so that it
cannot turn. In some cases however it is received in a non-cucular recess or hole
provided in another washer II (Figures 32 and 33) that fits the rim This washer
is shaped somewhat like a saddle to straddle the central ib A' of the rim thereby
ensuring that the washer shall not turn in the rim It is pierced at H' Figure 33
with a non-circular hole in which the washer E fits and is thereby prevented from
turning.
With the aforesaid improvements the tubular valve body need not have a flat
formed thereon to prevent rotation as has been heretofore the common practice.
An important advantage arising from the avoidance of flats on the tubular valve
body is that there is less chance of water leaking through into the tyre and causing
jury to the fabric
As a further security against the admission of water, a
washer of leather, fibie, rubber or other suitable material may be used under the
nut G that secures the valve body to the rim.
In valves intended for pneumatic tyres for cabs, carriages and like vehicles, I
preferably make that part of the valve budy which receives the retaining nut of
smaller diameter than the remaining part of the bedy. I form the retaining uut
with a tubular extension G' Figures 24 and 25 that encloses the outer end of the
large part of the valve body The tubular part G' is langed at G' to engage
with hooks K Figure 25 that are fixed to the rim and that serve to retain the nut
in place on the im. The Iniger part of the valve body may have flats formed ou
opposite sides thereof as shown in Figures 26 and 27 to engage with the flat sides
of the non-circular hole in the rim through which the valve body is passed.
These improvements are applicable more especially to valves of the kind or
cluss described in the Specification of prior Letters Patent No. 4175 A D. 1891
and No. 3462 A.D. 1893 but they are also applicable to inaur other well-known
types of valve
When applied to valves of the kind shown in Figures 24 and 25
the tubular body may be fitted with a stable non-ietuin valve such as that shown
in Figue 1 for example with or without the modifications hereafter described.
The sud non-eturn valve may be enclosed in the tubular valve boly D or it may
be attached thereto One advantage of this combination is that the valve proper
may be removed for examination or repan without necessarily deflating the tyre.
In some instances the tubular valve body is fitted with a suitable ball valve Las
shown in Figure 35, or other similai valve in combination with a suitable valve
sent L
The ball is introduced through an opening in the valve body or head,
which opening is then closed.
In cases where the head is reduced very much to fit very narrow rims I sometimos

page_text: provide in combination with or in lieu of the other means of attachment above
described a conical shaped rubber washer or teat M Figure 36 engaging with the
neck of the valve body at a point between the head D' and a collar M' formed on
the valve body. This teat operates to prevent leakage of air around the valve
body. The said washer or tent may be moulded integrally with the air tube or
may be made separately and secured to the rubber tube by rubber solution or
otherwise.
The end of the connector M Figures 1, 2 and 20 is preferably made conical to
fit the pump connections and the dust cap N Figure 20 which cap is made with a
recess N at the end so as not to bear upon the conical point of the connector.
The said cap may be fitted with a lead, vulcanite or other seating ring N' to
prevent leakage. The delivery tube of the pump may be similarly fitted.
sometimes make the connector M integral with the oap N.
In
The spindle or stem O of the non-return valve where such is used may be secured
to the connector M by scrowing as shown in Figures 1 and 14, suitable means
being provided to prevent leakage past the screw threads, or it may be otherwise
secured, for example the stem may be furnished with a flange or head O' Figures 16,
17 and 18, which enters the connector and is secured against the end of the tubular
valve body when the connector is screwed theicon. Washers O' are provided on
both sides of the head to prevent leakage. I sometimes make the stem O of
vulcanite, lead, or other soft metal or material that will not attack the rubber.
such case the washers O' may be dispensed with. The stem may be inade oval, or
it may be made round and solid and have flutes or grooves cut in its side to serve
as the air passages. The end of the stem is sometimes provided with a head O' to
present the blowing off of the india rubber valve tube O. This head is preferably
made with flat sides as shown in Figure 19 to allow a free passage for the air.
In
some instances I providp the stem O with a number of comeal projections 0 as
shown in Figure 194 to prevent the blowing off of the valve proper. The air
passage P through the reduced part of the valve body is made of small size to
ensure sufficient strength in the body and to prevent the rubber valve tube being
blown into the inflatable tube. The tubular valve body D especially when used
for cycle wheels may be made of much smaller diameter than has been usually the
case with certain classes of valves, so that great lightness is obtained and it is then
not necessary to make a large hole in the rim which is an important consideration
in light and narrow hims
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim 15-
1. The flat-sided head of the tubular valve body in combination with a washer
having turned up sides or shoulders to engage therewith to prevent the rotation of
the valve body, substantially as described.
2. The tubular valve body provided with flats engaging with the sides of a non-
circular hole in the run to prevent rotation of the valve body in combination with
a washer having upturned sides or shoulders for directing the inflatable tube from
the cores or edges of the cover, substantially as described.
3. The tubular valve body having a head with Hat sides and recesses under said
head for giving increased grip on the air tube and a washer having upturned sides
or shoulders, all substantially as. and for the purposes, specified.
4. The washer constructed with a non-circular hole in combination with a filling
piece made to engage with the flats formed by the recesses under the head,
substantially as, and for the purposes, specihed.
5. The combination consisting of the valve body, a split washer having uptuned
Bides and engaging with recesses formed in the valvo body, and a nut adapted to
hold the parts of the washer together, substantially as described.
6. The valve constructed substantially as described with reference to Figures 1

page_text: to 14 or to Figures 15 to 19ª or to Figures 24 to 29, or to Figures 30 and 31, or
to Figures 32 to 34 of the accompanying drawings, for the purposes specified.
Dated this 10th day of February 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.