Improvements in or relating to Valves for Pneumatic Tyres and other Purposes.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Valves for Pneumatic Tyres and
other Purposes.
I, EDWARD SWAIN, of the Manor House, Fordwich, in the County of Kent,
Etcher, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in the construction of air or gas valves
and pump nozzles for use in connection with pneumatic tyres and for other
purposes.
The chief objects of my invention are to facilitate the attachment of the pump
to the valve and to obtain a more effective closing of the valve and to obtain the
smallest possible attachment tube. To save weakening the rim of the wheel. 1
make this valve with a small tube attachment to the tyre of a size only sufficient
to obtain the necessary strength.
This tube may be used either with the valves at present in common use or in
conjunction with the adaptor as hereinafter described.
This adaptor consists of a cup screwed on to the small tube attachment by a
slow acting screw and to the inside or outside of the valve case by means of a
quick acting screw.
Where a rapid action and more compact construction is required, the adaptor
may be screwed to the valve case by a left handed screw. The adaptor has a strong
milled edge to facilitate its being turned, and in turning the adaptor the valve
case is partly unscrewed from the attachment tube thus allowing the valve to act
when turned back the valve is closed. The adaptor may carry a washer between
the attachment tube and valve case. To deflate, the adaptor may be entirely
unscrewed.
The valve case is constructed with an interual or external thread to fit the
adaptor, and may have a partly grooved cup, the ridges of which retain the non-
return stop, the stop may take the form of a ball, or a half ball, or a cone; or may
be a pad with thin perforated edges, the edges being fixed to a disk, which disk
may be fixed or moveable.
The non return stop may take any of these forms, most suited to the size of the
valve or the purpose for which it is used.
The inlet tube may be straight but I make a tube in an improved form, by
turning the nozzle at a convenient angle to the inlet tube.
The nozzle may be protected by an ordinary screw cap with its attachment, but I
make an improved cap, with a ring for attachment at the open end instead of the
closed end, the closed end being milled, to facilitate the opening and closing of
the inlet tube. Or with the same object, I make a simple cap, with a hard disk
and a washer having a split pin, or spring through them, the top end or head,
being formed into a loop for attachment, the other ends being bowed out to form
a spring and keep the cap in place when pushed into the nozzle of the inlet tube.
The inlet may be slightly rimered to hold the bowed sides of the pin. I may
facilitate the opening and closing of the inlet tube, by the following method.

page_text: I make a screw with a left handed thread, with a slot or groove down one side of
the thread to form an air passage. This is screwed into the opening of the inlet
tube, the screw having a head or end of a suitable shape to engage in the nozzle
of the inflater tube, so that as the inflater is screwed on to the valve nozzle, or
inlet tube, the closing screw opens the inlet and when the inflater is screwed off,
the closing screw is screwed down, in one operation.
In this improvement the closing screw and the end of the inlet tube, form a
male screw, while the pump nozzle forms the female screw.
This arrangement for opening and closing the inlet tube may be adapted to
many already constructed valves and inflators, and may be made separately to
attach and detach.
The adaptor and valve I may make of transparent material when I can do so
with advantage.
1
Improvements in or relating to Valves for Pneumatic Tyres and
other Purposes.
I, EDWARD SWAIN, of the Manor House, Fordwich, in the County of Kent,
Etcher, 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 the construction of air or gas valves
and pump nozzles for use in connection with pneumatic tyres and for other
purposes.
The chief objects of my invention are to facilitate the attachment of the pump
to the valve and to obtain a more effective closing of the valve and to obtain the
smallest possible attachment tube to save weakening the rim of the wheel. I
make this valve with a small tube attachment to the tyre of a size only sufficient
to obtain the necessary strength.
The small letters are used to indicate corresponding parts in all the figures in
all the accompanying drawings and any suitable scale may be used in manufacture.
Fig. 1, sectional view of the valve and pump nozzle showing the arrangement
of attachment tube with inside adaptor with pad valve stop with the inlet closing
scrow and nozzle at an angle to the valve, and the pump nozzle with engaging
studs.
Fig. 2, a sectional view of the valve showing attachment tube with outside
adaptor with half ball valve stop and straight inlet nozzle.
Fig. 3, ditto ditto ditto with ball valve stop with inlet nozzle and closing screw
at right angles to the valve.
Fig. 4, outside view of angular nozzle with a pump nozzle for attachment
severally to valve and pump.
Fig. 5, pad valve stop showing perforations.
Fig. 6, plan of valve case showing ridges and grooves.
Fig. 7, arrangement of ridges on a ring, side view.
Fig. 8, plan of the same.
Fig. 9, section of screw cap with chain ring at open end.
Fig. 10, sectional view of capping disc and split pin.

page_text: Fig. 11, left handed closing screw with a slanting engaging slot.
The attachment tube is shown in Figs. 1 and 2 C it may be secured to the
iyre or air tube by any ordinary means and it may be used with the valves at
present in common use in conjunction with an adaptor hereinafter described.
This adaptor B, Figs. 1, 2 and 3 consists of a cup screwed on to a small attach-
ment tube C by a slow acting screw and to the inside as in Fig. 1 or outside
Fig 2 of the valve case A shown in the same figure by means of a quick acting
scrow. When a rapid action of more compact construction is required the
adaptor B may be screwed to the valve case A by a left handed sorew. The
adaptor B has a strong milled edge P and the valve case A a strong milled edge P¹
to facilitate their being turned and in turning the adaptor B the valve case A
is partly unscrewed from the attachment tube C this allowing the valve stop D
to act when the adaptor B is turned back the valve stop is closed. The
adaptor B may carry a washer between the attachment tube C and the valvo
caso A.
I may make a washer by removing a portion of a screw thread and placing in
the space obtained a band of suitable material or materials as shewn Fig. 1, W.
To deflate, the adaptor B may be removed from the attachment tube C.
The valve case A is constructed in the form of a cup with an internal thread,
as in Fig. 1 or an external thread as in Fig. 2 to fit the adaptor B and may have
the cup partly grooved.
:
The ridges H forming the grooves may be made separately attached to a ring R,
as shown in Figs. 7 and 8. These ridges H retain the valve stop D in Figs. 2
and 3.
The valve stop may take the form of a ball D, Fig. 3 or a half ball D Fig. 2 or
a cone, or may be a pad D Figs. 1 and 5 with a thin perforated edge I J Fig. 5
the edge may be fixed to a disc or ing K. Fig. 1 which disc or ring may be fixed
or moveable. The non return valve stop may take any of these forms most suited
to the size of the valve or the purpose for which it is used.
The valve stop may be made in any suitable materials.
"
The inlet tube E may be straight as shown in Fig. 2 but I make the tube in
an improved form by turning the nozzle at a convenient angle to the inlet tube
Figs. 1 and 3 show two angles of the same.
end
The nozzle T may be protected by an ordinary screw cap with its attachment
but I make an improved cap Fig. 9 with the attachment ring U at the open
instead of at the closed end the closed end being deeply milled P the cap is easily
turned the attachment ring being clear of the fingers.
Or to effect the same object I make a simple cap as shewn Fig. 10 with a hard
disc V and a washer S having a split pin or spring X through them forming a loop
on the outer end for an attachment the inner end being curved into a single or
double spring which when pushed into the inlet holds the cap in its place; the
inlet may be slightly rimered to hold the spring.
I may facilitate the opening and closing of the inlet tube in the following
manner.
I make a screw F Fig. 11 with a left handed thread with a slot or groove M
down one side of the thread to form an air passage; but this air passage may be
formed in such a manner that the slot or groove M is partly covered by the screw
thread. A screw with such an air passage may be constructed by first drilling the
air massage near the edge of the material, and then cutting the thread of the
screw through the material into the air passage.
This screw F is screwed into the opening of the inlet tube the screw having a
head of a suitable shape to engage in the nozzle of the inflator tube.
For this purpose I construct this head with grooves L Figs. 1 and 11 down
the sides. They may be straight down Fig. 1 or on the slant Fig. 11.-
The pump nozzle N Figs. 1 and 4 having suitable studs O to fit the grooves L
30 that as the inflator nozzle N is screwed on to the valve nozzle T or inlet tube E
the closing screw F having a left handed thread is unscrewed and by that means

page_text: opens the air passage M. and by the contrary action when the inflator nozzle is
screwed off the closing screw is screwed down at the same time in one operation.
This closing screw when screwed down closes up the inlet making the same
airtight.
The pump nozzle N Fig. 4 has a strong milled edge.
In this improvement the closing screw F and the end of the inlet tube or
nozzle T, Figs. 1 and 4 from the male screw while the pump nozzle N forms the
female screw.
This arrangement for opening and closing the inlet tube may be adapted to
any already constructed valves and inflators or may be made separately to attach
and detach as shewn in Fig. 4.
Suitable washers may be placed to all parts where necessary and where right
and left handed screws are used either may be left handed.
Portions of this valve may be made of transparent materials where it can be
used with advantage and any suitable materials may be used in its complete
construction.
By the use of the complete valve, as herein described with inlet closing screw
pump nozzle, adaptor, etc., the operation of inflating a tyre is performed in the
following manner the pump nozzle N Fig. 1. and 4 being attached to an inflator
pump, the nozzle is screwed on. to the inlet nozzle T these are held by one hand
while the adaptor B is turned sufficiently to free the stop D. the tyre is then
pumped as required, the pump nozzle is again. held while the adaptor is screwed
tight fixing the stop D. The pump nozzle is then unscrewed when the operation
is complete and this method of setting free and fixing the stop D is by a direct or
straight action without twist to the valve stop.
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 is
1. An adaptor which allows an attachment tube to be used of a smaller size
than has hitherto been possible thus giving additional strength to the rim.
2. An adaptor which adapts the small attachment tube to the valve case and
fixes or sets free the valve stop by a direct or straight action and without twist to
the valve stop.
3. An inlet nozzle constructed at a convenient angle for attaching an inflator
substantially as described.
4. An arrangement of right and left handed screws pump nozzle and inlet tube
nozzle for opening and closing the inlets of cycle and other valves substantially
as described.
5. An inlet closing screw of suitable material making the inlet airtight substan-
tially as described.
6. The ridge and ring arrangement for holding the valve stop in place, substan-
tially as described.
7. The screw closing cap with attachment ring at the open end substantially as
described.
8. A spring closing cap substantially as described.
9. The general arrangement construction and combination of the parts forming
an improved valve and pump nozzle for pneumatic tyres of cycles and for other
purposes as herein before described and as illustrated in the accompanying drawings.
Dated the 16th day of June 1898.
AUBREY KICHARDSON,
49A, Lincoln's Inn Fields, London, W.C., Agent for Applicant.