Improved Means for Inflating Elastic Tyres and the like.
Year: 1899

page_text: Improved Means for Inflating Elastic Tyres and the like.
:--
I, GEORGE HENRY DEEKS, of 20, Gower Place, in the City of London, Stock-
broker's Clerk, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide means for inflating elastic tyres or
the like in a more ready and convenient way than hitherto and without the use
of the ordinary pump.
According to my invention I provide in communication with the tyre or the
like to be inflated a chamber in which is placed a device from which an elastic
fluid under pressure can be liberated or generated so as to escape into and
inflate the tyre or the like when required. I preferably employ small metallic
capsules containing gas under pressure, such as are used for example in charging
water with gas and a convenient arrangement according to my invention consists
of the aforesaid chamber in communication with the tyre by means of a non-
return valve and having at its other end a spindle which can be pressed or
screwed inwards, the said spindle conveniently passing through a screw cap
which closes the said chamber and can be removed for the withdrawal of a spent
capsule and the insertion of a new one. The inner end of the said spindle is
pointed so that when forced inwards it pierces the capsule and gas is liberated
therefrom and escapes and passes through the non-return valve into the tyre or
the like. When the necessary quantity of gas to inflate the tyre has passed
thereinto the spindle can be screwed down and by closing the orifice which it
has made retain the compressed fluid not consumed until a further inflation of
the tyre is required and to effect a tight closure the spindle may have a rubber
washer to make a tight joint around the orifice which the spindle closes.
Dated this 16th day of January 1809.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improved Means for Inflating Elastic Tyres and the like.
1, GEORGE HENRY DEEKS, of 20, Gower Place, in the City of London, Stock-
broker's Clerk, 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:-
The object of my invention is to provide means for inflating elastic tyres or
the like in a more ready and convenient way than hitherto and without the use
of the ordinary pump.
According to my invention I provide in communication with the tyre or the
like to be inflated a chamber in which is placed a device from which an elastic

page_text: fluid under pressure can be liberated or generated so as to escape into and
inflate the tyre or the like when required. I preferably employ small metallic
capsules containing gas under pressure such as are used for example in charging
water with gas and a convenient arrangement according to my invention consists
of the aforesaid chamber which may, at one end, be caused to communicate
with the tyre, or the like, to be inflated, by means of a non-return valve and
having at its other end a spindle which can be pressed or screwed inwards, the
said spindle conveniently passing through a screw cap which closes the said
chamber and can be removed for the withdrawal of a spent capsule and the
insertion of a new one. The inner end of the said spindle may be pointed so
that when forced inwards it pierces the capsule and gas is liberated therefrom
and escapes and passes through the non-return valve into the tyre or the like.
When the necessary quantity of gas to inflate the tyre has passed thereinto the
spindle can be screwed down and by closing the orifice which it has made retain
the compressed fluid not consumed, until a further inflation of the tyre is
required and to effect a tight closure the spindle may have a rubber washer to
make a tight joint around the orifice which the spindle closes.
Figure 1 of the accompanying drawings represents in longitudinal section an
inflating device constructed according to my invention and Figure 2 is a
similar view illustrating a modification. Referring to Figure 1, A is a capsule
charged with an elastic fluid under pressure for example carbonic acid gas with
which the tyre or the like is to be inflated. This capsule is placed in a chamber B
made in parts screwed together so as to be readily separated for the insertion of
the capsule and removal thereof when exhausted of its contents. To one end of
this casing is connected at ba nozzle or flexible tube a by which the interior
of the chamber B can be caused to communicate with the interior of the tyre,
or the like, to be inflated, the said tyre or the like being provided with a non-
return valve as usual. The other end of this casing is provided with an internally
Ecrew-threaded neck e into which is screwed a stuffing box or glande through
which passes a stem or spindle which screws into the top of the chamber.
The inner end of the screwed stem or spindle d is pointed as shewn at f so that
by screwing the spindle down into the chamber the point f may be caused to
puncture or perforate the capsule A, whereupon the compressed fluid will escape
therefrom into the chamber B and pass thence through the flexible tube or
nozzle a into the tyre or like article to be inflated. The capsule may be of any
desired size and may contain only sufficient compressed fluid to inflate a single
tyre or it may be sufficiently large to contain sufficient compressed fluid to
inflate several tyres, and the spindle d may be provided with a flange or valve
above the extreme point f to close the aperture in the capsule, or the said
point may be tapered as shewn so that when sufficient of the compressed fluid
has been discharged the perforation made in the capsule can be closed by
screwing the point down into the capsule and so prevent the passage of the com-
pressed fluid therefrom.
In the arrangement illustrated by Figure 2 the capsule itself is made in two
parts A A', the outer part A' being movable on the part A. Between the parts A
and A is a packing of india rubber or the like g against which the parts A A
are held in contact by the pressure of the gas or compressed fluid contained in
the interior. The capsule is enclosed in a chamber B, as in the arrangement
Figure provided at one end with a gland or stuffing box e and a screwed
spindle passing therethrough and bearing at its inner end on the closed end
of the outer portion A¹ of the capsule. The other end of the chamber B has a
nozzle to which can be attached a flexible tube by which to connect the inflating
device to the tyre or the like to be inflated. By screwing the spindle d inwards
the outer portion of the capsule will be forced thereby out of contact with
the packing g whereupon the compressed fluid will pass from the interior of the
capsule into the chamber and thence through the tube a into the tyre or the like
to be inflated and when sufficiently inflated, the spindle d is screwed outwards
16

page_text: whereupon the pressure of the compressed fluid contained in the capsule will
force the portion A2 against the packing y and prevent the escape of the fluid
from the said capsule.
Figure 3 illustrates a further modification wherein the outer casing B herein-
before described is dispensed with. In this modification the capsule or vessel A
containing the elastic fluid under pressure is provided at one end with an
opening which is closed by a screw down plug d screwing into the internally
screwthreaded neck secured to the capsule or vessel A. The neck is fitted
with a union coupling e for connecting to the capsule or vessel, the flexible tube a
by screwing the said union onto a flange a² on a socket a¹ carried by the said
flexible tube, between which flange a² and the end of the neck bis interposed a
ring of india-rubber or the like to form a gas-tight joint. The flange a has
therein a square or equivalently shaped opening through which
a corre-
spondingly shaped projection on the outer end of the plug
passes
so that when
the flange is turned in the union e the plug d will also be turned and so be
removed from or forced into contact with an elastic washer or packing b
interposed between the inner end of the plug and the end of the capsule or
vessel A according to the direction in which the flange a² is turned. Through
the plug is a passage d the inner end of which is out of line with the opening 61
in the capsule or vessel A so that when the plug is screwed against the washer b
the elastic fluid cannot pass from the said capsule or vessel, but by partially
rotating flange in the union e in the direction to remove the inner end of the
plug out of contact with the washer or packing 63 the elastic fluid will pass from
the capsule or vessel A through the opening and through the passage
the plug into the tube a and thence into the tyre or other article to which the
said tube, at its opposite end, is attached. When the tyre or the like has been
sufficiently inflated the discharge of compressed fluid from the capsule or
vessel A can be readily cut off by partially rotating the flange in the union c
in the reverse direction so as to force the inner end of the plug against the
washer or packing .
in
Although my invention is more particularly intended to be employed for inflat-
ing clastic tyres it is also applicable for inflating foot balls and other inflatable
articles.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. A device for inflating elastic tyres and the like consisting of the combination
of a container of elastic fluid under pressure, and means for liberating the said
fluid, and causing it to pass into the article to be inflated substantially as hercin-
before described.
2. A device for inflating elastic tyres and the like by means of carbonic acid
gas or other clastic fluid under pressure the said device consisting of a chamber
for containing a capsule, or vessel, holding the carbonic acid gas or elastic fluid
under pressure, the said chamber being provided with means for establishing
communication between the said chamber and the tyre or the like to be inflated
and means for liberating the gas or elastic fluid from the capsule or vessel
substantially as herein before described.
3. Apparatus for inflating elastic tyres or the like by means of elastic fluid
under pressure substantially as herein before described and illustrated by the
accompanying drawings.
Dated this 16th day of Onto 1000
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.