Improvements in Apparatus for Turning Air-tubes for Pneumatic Tires.
Year: 1895

page_text: Date of Application, 22nd Oct, 1895--Accepted, 30th Nov., 1895
COMPLETE SPECIFICATION
Improvements in Apparatus for Turning Air-tubes for Pneumatic
Tires.
I, FRED WILLIAM MORGAN, of 339 West Lake Street, Chicago in the County
of Cook, State of Illinois, United States of America, Rubber 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
In order to provide elastic inner an-tubes for pneumatic ties with internally
ranged patching plios, it is desirable to first turn the air-tube inside out, then
attach the patching ply to the exposed surface of the tube, and then again tuin
the tube so as to bring the patching ply within the same. The process of turning
the tube by hand is slow, laborious, and expensive. The object of my invention is
to provide extremely simple means whereby elastic inner air-tubes for pneumatic
tires can be turned inside out with little labot and great rapidity, and to the
attainment of such end I provide a long blast-tube having an open discharge end
over which a portion of the air-tube about an opening in the latter can be
stretched, and so held, whereby, while all or a greater part of the remaining
portion of the an-tube lies within the tubular casing, it will be at one point so
attached to the blast-tube that when it 19 expelled therefrom, it must tulo
Inside out through its said opening. The blast: Lube 13 connected with some suit-
able means or apparatus for supplying a blast of air to the blast-tube at a point
back of the discharge end of the latter, it being understood that any au-
compressing machine or apparatus suitable for supplying a proper blast of air, can
be employed.
A suitable valve or cock is airanged. between the blast apparatus and the
blast-tube, and placed subject to the control of an attendant, so that when the
tube 15 In readiness forbeing turned inside out, a blast of an of "proper
duation can be admitted into the blast tube. Where the air-tube is closed
at both ends and provided with an opening adjacent to one end; the said -tube
18 turned inside out through such opening, and aqua meaus for introducing 'the
air-tube within, the blast-tube, 1 provide a push-rod, as thereinafter 'moic
conveniently explained in.ioonncetion with the staccompanying diawings, in
which,
In
Figuierrepresents in elevation, a pneumatic tube-tuning apparatus embodying
my invention, the table or bed being shown in vertical longitudinal section:
this figure, the blast apparatus is indicated but not illustrated,ut being understood
that any suitable means or apparatus for supplying a proper blast of air, can
be employed
Figure 2 represents portions of the blast-tube in longitudinal section, and
illustrates the method of introducing an an-tube into the blast-tube. The air-tube
and blast-tube are shown broken away for convenience of illustration, and a portion
of the an-tube is shown in longitudinal section.
Figure 3 is a similar view showing a portion of the air-tube stretched upon one
end of the blast-tube.
Figure 4 shows one end portion of the blast-tube in longitudinal section, with the
air-tube blown out therefrom and tuned inside out, said air-tube being maily in
longitudinal section, and bruken away for convenience of illustration.

page_text: The blast tube A is adapted to receive an innci an-tube for a pneumatic tire,
and is of such length, that all or the greater portion of the air-tube can be
extended along within the same, as indicated in Fig. 2, it being observed that the
length of an inner inflatable au-tube for a pneumatic tire, is usually from six to
eight feet long. The blast-tube is preferably cylindrical although its form in cross
section may, if desned, be varied. The blast-tube is aanged upon a support B,
and is held the con so that its open end a is readily available to the attendant
whose duty it is to introduce the air-tube there. The opposite end of the
blast-tube is connected by suitable tubing C with any suitable an-biist apparatus,
indicated at D
A valve or cock as at E, is provided for opening and closing communication
between the au-blast apparatus and the blast-tube, and as a desnable_antang-
ment, the valve or cock is subject to a closing sping e, and provided with
an operating lever el which is connected with a treadle F by a suitable flexible
connection G, in this maunch the treadle can be arranged below the open en!
of the blast-tube as shown, thus permitting the attendant to conveniently control
the blast
The an-tube H, represented, is understood to be an elastic inner an-tube for a
pneumatic tuc, and is of the kind in which the ends of the tube are fattened and
closed by pressure and cement either with or without vulcanization, it being usual
however to vulcanize such ends so as to effectively close the same. An air-tube of
such character is provided with an opening which is formed neal one end of the
tube and provided for the usual flexible nipple. As a simple and rapid mode of
introducing such air-tube within the tube-tuning blast tube A, a push-iod I 18
first introduced within the au-tube, and to such end it can be inserted through the
opening in sand tube, and by such means, the operator can readily introduce the
ail-tube in the open end a of the blast-tube, and push the an-tube within the latter
as indicated in Fig. 2. The push-iod is then withdrawn from the an-tube, and the
portion of the latter, around the opening h, is stretched upon the end a of the
blast-tube as in Fig 3. The end a of the blast-tube is adapted to prevent the au
tube from becoming detached therefrom during the process of turning the an-tube,
and for such purpose the end a of the blast tube is made flaring so as to provide an
aunular shoulder the cou
་
After the push-od has been removed from the an-tube, a blast of compressed
air is admitted from the blast-apparatus into the blast-tube, and as a result, the
air-tube will be instantly expelled and turned inside out during the expulsion from
the blast-tube, as in Fig 4. The short portion of the an-tube shown in said
figure can be tied inside out by hand, either before or after the main portion or
the au-tube has been turned inside out, or, such portion can be turned inside out
by a repetition of the foregoing described method of turning the main portion of
said tube. It is also understood that where a hole occurs in the an-tube as
result of either or both of its ends being open, an end portion of the air-tube can'
be stretched upon the dis haige end of the blast tube, and in such case it the
opposite end of the au-tube is closed either temporarily or permanently, the an-
tuba can be expelled from the blast tube and tuned during such expulsion, as
herembefore set forth
Having now particularly described and ascertained the nature of my said
invention, and in what manner it is to be performed, 1 declare that what I
clann is
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1
1
1. An apparatus for turning elastic air-tubes for pneumatic Lines, comprising a
source of supply of compressed air for produing a blast, and a blast-tube adapted
to receive the an-tube and having its discharge end adapted to hold the marginal
portion of the an-tube about an opening in the latter, said blast-tube being
arianged to permit the air-tube to be expelled by the blast and to turn inside out
dung its expulsion, substantially as set forth
2. A pueumatic apparatus for turning inside out, clastic an-tubes for pneumatic

page_text: tires, comprising a blast-tube adapted to receive the air-tube and having its
discharge end formed to permit the portion of the air-tube sutiounding an opening
in the latter to embrace said discharge end of the blast-tube, means for supplying
the blast-tube with a blast of air at a point back of its disebarge end, and a valve
for admitting and cutting off the au-blast, the sand blast-tube being adapted to
permit the tube to be expelled therefrom by the blast and to turn inside out during
ite expulsion from the blast-tube, substantially ns set forth
3. A pneumatic apparatus for turning inside out, elastic, air-tubes for pneumatic
tires, comprising a blast-tube A arranged upon a support and adapted to receive
the air-tube and having its discharge end formed to permit the portion of the an-
tube surrounding an opening in the latter to embrace said discharge end of the
blast-tube, means for supplying the blast-tube with a blast of ait at a point back of
its discharge end, and a valve for admitting and cutting off the air-blast to and
from the blast-tube, said blast-tube being adapted to permit the tube to be expelled
therefrom by the blast and to tuin inside out during its expulsion from the blast-
tube, substantially as set forth.
4 A pneumatic apparatus for turning inside out, elastic air-tubes for pneumatic
tires, comprising a blast-tube A adapted to receive the au-tube, and having its
discharge end formed to permit the portion of the air-tube surrounding an opening
in the latter to embrace said dischaige cnd of the blast-tube, menus for supplying
the blast-tube with a blast of air at a point back of its discharge end, a valve for
admitting and cutting off the air-blast, and a push-1 od 1, adapted for insertion.
within the air-tube, substantially as and for the pin pose described
5. A pneumatic apparatus for turning inside out, elastic air-tubes for pneumatic
tires, compiling the blast-tube A arranged upon a support and provided with a
shoulder it its discharge end, means for supplying a blast of air to the blast tube, a
valve for admitting and cutting off the a-blast, and a valve operating device
subject to the control of an attendant, the said blast-tube being adapted to receive
the au-tube and to permit the latter to be stretched upon its discharge end,
substantially as and for the purpose described
Dated the 21st day of October 1895.
D YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.