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Патент USA US2127052

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Aug. 16, 1938.
Filed Feb. 16, 1958
Patented Aug. A16, 1938
_ 2,127,052
Earl Von Bon Horst, San Clemente, Calif.
Application February 16, 1938, Serial No. 190,837
(ci. 152-453)l
5 Claims.
shown, or may be of the> form shown in Figures
6 to 8 of the drawing in my prior U. S. Patent No.
2,097,748, as the constructor desires.
The )legs 5 terminate at their inner ends in
This invention relates to an air-cooled safety
An object of the invention is the construction,
preferably from a single blank, of a novel rim
outwardly-extending flat portions l, which ilat
structure including a central rim unit and outer
portions 'I terminate at their outer edges in up
rim units, held in their folded _or final position
by an efficient spoke arrangement.
Another object of the invention is the con
wardly-extending angular flanges 3.
air-cooled unit, and which rim-structure is of
considerable strength, while at the same time
each spoke secured, as by welding 9 (Fig. 5) to
A still further object of the invention is to
improve the construction of an air-cooled safety
tire, as shown and specifically described in my
prior United States Patent No. 2,097,748, issued'»
November 2, _1937.
as to bridge across the outer ends of legs 6, with 10
the flat portions 1 of the outer rim units (Figs. 3 and 5). ' By this arrangement the rim structure
cannot spread apart, even though undue pres
sure is placed thereon, besides the parallel legs
are held in a substantial and true position for
keeping a suflicient clearance to allow free air
_ circulation into the air-cooling chamber IIJ,` for
With the foregoing and other objects in view,
my invention comprises certain novel construc
tions, combinations and arrangements of parts
as will be hereinafter fully described, „illustrated
in the accompanying drawing, and more partic
ularly pointed out in the appended claims.
In the drawing:
Figure 1 is a transverse, vertical, sectional view
of a tire constructed in accordance with the pres
ent invention.
Figure 2 is a longitudinal, sectional view taken
30 on line 2-2, Fig. 1.’
Figure 3 is a fragmentary, perspectvie View of
a device constructed in accordance with the pres
ent invention.
Figure 4 -is a fragmentary, plan view of a blank
35 prior to bending or folding into the final shape
of the device, as seen in Figure 3.
Figure 5 is an enlarged fragmentary, vertical,
sectional view of the device, showing particularly
the spoke attaching feature, while
struction of a rim-structure which includes an
being comparatively simple and inexpensive to
'I‘he novel spoke construction comprises plac
ing the inner end of the spoke, or spokes I, so
Figure 6 is a similar view of another embodi
Referring to the drawing by numerals, I des
ignates preferably a hollow spoke of an ordinary
wheel (not shown) to which is secured in the
best results. The spacing lugs 6 will prevent
closing of the passage between the parallel legs, 20
even though some undue pressure, as accidental
bending, is placed upon the rim-structure.
In Figure 6 there is shown a modification of
the rim-structure, in which sockets I I are formed;
these sockets being screw threaded on their outer
wall to receive the screw threads I2 of spokes
In this manner a Very efficient attaching
means is provided, insuring too of the uniform
spacing of the legs of the central rim unit, hold
ing the folded blank in an efficient position, once 30
it has been assembled or formed into shape, as
seen in Figures 1 and 3.
In Figure 4, the valve aperture I3 is formed
for receiving the valve unit I4.
The lugs 6 are
pressed in the blank, and the dotted lines I5 rep- _
resent the position of the spokes' I and Ia in the
assembly. 'I'he spokes are placed on what might
be called the lines of fold I6,~Fig. 4, and when
so- placed they act to lock or bind the blank in
its folded position. Therefore, it will be under
stood that the spokes support the rim-structure;
they also perform the additional function of hold
ing the' legs 5 in their normal parallel position,
while at the same time they donot interfere with
45 manner hereinafter described, the rim-structure
the free circulation of -cooling air'into the inte
rior of the tire.
A_ standard shoe I1 is placed upon the rim
structure in any suitable manner. This shoe I'l
rim units 3. The central rim unit 2 comprises
a hollow body portion l terminating in inwardly
has an outer hard rubber thread I8 with an
which is preferably formed from a single blank,
as illustrated in Figure 4. This _rim structure
comprises a central rim unit 2 and integral outer
extending parallel legs 5. These legs 5 are pro
vided with pairs of registering spacing lugs 6
that are normally in engagement at their inner
ends, when the blank has been folded, as shown
55 in Figure 3. These lugs 6 may be oi' the form
inner fabric unit I9. An inner tube 20 is placed 50
in the shoe I9 and this tube 20 conforms to the
>shape of the shoe and the central rim unit 2.
The central rim unit 2 is faced or covered 'on
its outside with a light weight canvas 2I. The'
valve unit I4 extends at its inner end into the
compartment or chamber formed by tube 20, in
the same manner described and shown in my
prior Patent No. 2,097,748.
This improved tire does not in any way ail'ect
the true running qualities of they wheels on which
it' is mounted, and adds very little weight over an
ordinary tire, While the tire of this invention is
cooled by drawing 01T the traction heat. 'I‘his in
vention also practically eliminates any dangers
attended on a. blow-out, because if a blow-out
occurred the wheel would only drop about two
to two and one-half inches or no more than if the
tire was under-inflated, as indicated clearly by
dotted lines "A", Fig. 1. This position shown by
dotted lines “A" would prevent the squeezing of
the shoe out from under the edges of the primary
rim, and thereby eliminate the sharp swerving of
the car, whereby accidents occasionedby blow
outs are prevented, inasmuch as the car is
20 allowed to travel in a straight line to a normal
stop. Of course, if necessary, the car could be
driven on the deflated position, as indicated by
dotted lines “A”.
It is to be understood that I may use solid
25 spokes in this invention (not shown) if I desire,
for by reason of forming my rim-structure in one
thereforel reserve the right to make such altera
tions and changes as shall fairly fall within the
scope of the appended claims.
What I claim is:
1. In an air-cooled tire, the combination of a
rim-structure including a central rim unit pro
vided with parallel legs having radially inner
ends, and spokes having their radially outer ends
directly attached to the radially inner ends of
said parallel legs.
2. In an air-cooled tire, the combination of a
rim-structure including parallel legs terminating
at their radially inner ends in ñat portions, spokes
secured at their radially outer ends directly to
said dat portions and spanning the distance be
tween the radially inner ends of said legs. and
each spoke serving as a fastening means for secur
ing said legs in their assembled position.
3. In an air-cooled tire, the combination of a
rim-structure including spaced legs having radi 20
ally inner ends integral with horizontal ñat por
tions, said dat portions and the radially inner
4ends of said legs provided with screw-threaded '
piece or out of a blank, an open-ended slit, so to
sockets, and spokes having their radially outer
ends screwed into said screw-threaded'sockets 25
and spanning across the space between said legs.
speak, is formed between the parallel legs. per
mitting free entrance of air into the cooling
rim-structure provided with spaced legs having
the binding or locking means: for holding the rim
structure from spreading, including the retain
spaced position.
4. In an air-cooled tire, the combination of a
30 chamber Il), without impairing the eiliciency of _ radially inner ends and spaced outer rim por
tions, and spokes having their radially outer ends 30
the spokes, in so far as they are excellent sup
porting means for the rim-structure as well as directly engaging and supporting said outer rim
ing of the parallel legs 5 in their tr-,uea'ssembled
While I have described the preferred embodi
ments of my invention and illustrated'the same
in the accompanying drawing. certain minor
40 changes or alterations may appear to one skilled
in the art to which this invention relates during
the extensive manufacture of the same and I,
portions and iixedly securing said spaced legs in
5. In an air-cooled tire, the >combination of an
inner sheet-metal rim unit comprising parallel
legs provided at their radially inner ends with
integral outstanding iiat portions, a spoke having
its radially outer end secured to the radially inner
ends of said parallel legs and the flat portions,
and the radially outer end of said spoke also 40
bridging the space between said parallel legs.
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