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Патент USA US2406498

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_ Aug._ 27,1946.
Filed April 9, 71945
_ 2 Sheets-Sheet 2
b24010 I.’ JAMLS‘.
A rfOIPQ/gx
Patented Aug. 27, 1946
' '
Harold Y.James, Denver, Cole.
A ‘Application Aprilill, 1945,v Serial No. 587,339
a Claims. (01. 1_8--18)‘
This invention relates to a tire casing vul
‘can‘izer; moreiparticularly for what is known as
"spot repairs.” The principa'lobject of the in
' The curing arm'may have any desired pro
vision for heating. ‘As illustrated, it is an elec
trically-heated arm provided with electric heat
ing elements I‘! on its interior. Conductors car
vention i-s‘to provide a sturdy device upon which
the casings can be easily placed ‘and removed
rying current to the heating elements f1‘ pass
without damage to the vulcanizer, and with very
through a conduit [8‘ to a suitable switch box; f9’.
little e?ort on the part of the operator.
The posts ‘l5 are formed" with downwardly vde
pending apron portions 23 which overlap the
Another objectof the ‘invention is to provide
easily adjustable means for supporting the cas
inside faces of the arms" 13‘. A vertical tenon
ing on the curing arm at its bead portion‘ so as 10 24 extends downwardly along each post [5 and
to prevent stretching and distorting of the re
its apron 23,. The tenons are for the purpose
of guiding a horizontal pressure plate¢25,tthe
Still another object is’ to provide a, curing‘ arm
extremities of whichjare notched to ride on‘ the
contoured so as to prevent the’ formation ‘of
tenons 24.
The pressure plate is threaded on andsup
bulges in the casing due tov internal/plies or
ported from a central jack screw 26, terminat
ing at its lower extremity in a hand wheel 21''.
The upperv extremity of the jack screw 26 is re
duced in diameter and passes through the bot-'
tom 'of the curing arm l6, terminating in a suit
able combination nut and washer 28. The up
ward thrust of the jack screw is absorbed by a
Other objects and advantages reside in the
detail construction of the invention, which is
designed for simplicity, economy, and e?iciency.
These will become more apparent from‘ the fol
v In the following detailed description of the
bronze washer 29 positioned between two vsteel
invention, reference is had to the accompany
washers 3.9. The downward thrust is received
ing drawings which form a part ‘hereof. Like
numerals refer to like parts in" all views of the 25 by a steel washer 3| 0n the interior of the cur
ing arm I6.
‘ '
drawings and throughout the description.
In the drawings:
' l
An adjusting screw 32 is mounted in each‘of
the posts l5 and extends vertically downward
therein, the lower extremity being reduced in di
A’ Fig. l is a perspective view of the improved
tire casing repair device; \
ameter to provide a bearing shoulder inv the post.
A hand, knob 33 is secured on the lower .ex
tremity of each screw‘ 32- by means of which it
Fig. 2 is a plan, view thereof;
Fig. 3- is a front view;
Fig. 4 is a vertical section taken on the lin
4-4, Fig. 3;
may“ be rotated. A nut 34 is threaded ontov each
of the adjusting screws- 32‘ within the posts 15.
Fig. 5 is a cross-section taken on the line 5-5,
Fig. 3; and
I The nut is provided with two oppositely-extend
Fig. 6 is a detai1'perspective view illustrating
one type of clamping band which may be used
in connection with the improved vulcanizer.
The device is supported upon a pedestal [0
which is preferably formed of steel plate ma 40
ing studs 35 which project forwardly and rear
wardly through openings in the sides on the
posts l5.
An arcuate bead arm 36 is supported by the
studs 35 at the front and back of the curing
terial so as to form a hollow interior in which
arm It‘.
The bead arms have a contour to con
form to the external contour of a typica1 tire‘
casing bead portion, and are provided with
sleeves 31 which slide over the studs 35.
A clamping band 38, such as illustrated in Fig.
6, is employed in connection with the device.
The clamping band consists of an arcuate ?ex
ible metallic hood conforming to the outer con
wardly therefrom in parallel relation.
tour of a typical casing. A link chain 39 de
A hollow post I5 is secured on top of the pro 50 pends from adjacent each‘ corner of the band
jecting extremity of each of the arms I3. The
as illustrated in applicant's United States Patent
posts I5 support an arcuate curing arm IS. The
‘No. 2,112,440. The pressure plate 25 is provided
curing arm is formed with a base lug l4 ad-,
with chain notches 40 into which the links of the
chains 39 are engaged.
jacent each of its extremities, which rest upon
In use, the tire casing to be repaired is hung
the posts I5.
suitable shelves (not shown) may be placed for
conveniently supporting tools and other acces
sories. A cap plate l2 closes the top of the pod
Two spaced-apart supporting arms l3 are se
cured on top of the cap plate I2 by means of
suitable attachment screws 20 and project for
tion substantially at the mid-point thereof.
‘on the projecting extremity of each arm; an
arcuate curing arm extending between the sup
The screws 32 are adjusted to raise or lower the
porting members and being secured thereto ad
bead arms .36 against the heads of the casing‘
so that they will support the latter uniformly‘v
throughout the length of the repaired. portion to
prevent the weight of the casing from widening,‘
jacent each of its extremities; a jack screw ro
‘ tatably suspended from the mid-portion of said
over the curing arm [6, with the repaired por
curing arm between the supporting members; a
pressure plate threaded on said jack screw; a
clamping band extending over said curing arm;
stretching, and distorting the repair.
means for connecting said clamping band to said
The clamping band 38 is placed over the repair,
'the chains’39': are drawn tightly-by hand, "and 10 ‘pressure plate; a vertical tenon _forn'1ed_fon each‘
of said supporting members, the tenons on the
links ,thereof- are-engagedv in the four chain
‘opposite members facing each other; and notches
in said pressure plate for engaging said tenons
wardly, thus placing the chains undertension 7. V‘ to prevent rotation of said pressure plate.
2. A tire casing repair device comprising: a
and clamping the band 38 snugly‘a'gainst“ the 15
repair, and the latter snugly against" the-curing , . pedestal; a pair of supporting arms detachably
notches 40 of the plate 25. The hand wheel 21
is then rotated to pull the pressure plate down?
arm l6.
, _
» i ;.
secured to said pedestal and extending forwardly
therefrom; ‘a supporting member mounted on
When the
repair; is com-jg,
pleted the hand wheel 21 is rotated to raise the 20
1. pressure plate 25 so as to release the chains 39
to allow the links to be slipped from the notches‘
510 so that the clamping band 38 may be removed.
1 There is; of course, a slight lineal expansive
and contractive movement of the curing arm l6‘
.theprojecting extremity of each arm; an arcuate
due to variations in temperature therein. This
extending over said curing arm; link chains ex
movement causes'the supporting arms I3 to move
toward or away’ from each other, and is accom-i
modated by means of slotted bolt holes M in the
engaging meansin said pressure'plate, said sup
porting members being hollow; a vertical ad-y
' The curing is effected as usual by the heat of
the curing arm I6.
armstthrough which the attachment bolts 2%
curing arm extending ijbetween the supporting
members andrbeing secured thereto adjacent each
of its extremities; a jackscrew rotatablysus
pended from the mid-portion of said curing arm
between supporting 'members; a pressure plate
threaded on said jack screw; a clamping band
tending irom said clamping band into chain
.30 lusting screw .in each of said supporting mem
bers; a nut threaded oneach adjusting screw;
.In' the .usual curing arm the plies or layers
of repair'material on the inside of the casing
studs projecting forwardly and rearwardly from
each nut and from» said supporting members; and
force the latter outwardly to create arbulge
an arcuate bead iron extending between the studs
therein, . This improved curingarm, however,’ has 35 andbeing supported thereby at each side of said ‘
an arcuate depression 42» about its middle which
curing arm.
accommodates the internal plies or patches and
'3. A tire casing repair device comprising: a '
prevents them from forcing the casing contour
pedestal; a pair vof supportingarms detachably
outwardly to form’ a bulge. The depression 42
secured to said pedestal and extending forwardly
extends completely around the casing-engaging‘ .40 ‘therefrom; a supporting member mounted on
portions of the, curing arm, as shown in Fig. 2. V
‘ While a speci?c form of the improvement has
the projecting extremity of each arm; an arcuate
curing arm extending between the supporting '
been described and illustrated herein, it is. de
sired to be understood that the. same may be.
members and being secured thereto adjacent each
,of'its ‘extremities; a verticaliadjusting screw in
varied, within the scope of the appended claims,‘ , ; each of saidsupporting members; a nut threaded
without departing from the spirit of the inven-f ' on each-adjusting screw; studs projecting fore
wardly and rearwardly from each nut and from
I . Having thus described the invention, what‘ is.
laimedfanddesired secured byLetters Patent‘
1. A’ tire casing repair device comprising: a
pedestal; a pair of'supporting arms detachably
secured to said pedestal and extending fore "
wardly therefrom; a supporting membermountedi
said supporting members; an arcuate bead iron
extending between the studs and'being supported
thereby at each~side of said curing'arm; and
means vfor drawing . a tire casing against said
curing arm.
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