Vulcanizer Page: 3 of 5
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UTED STATES PATENT OFFICE.
ARTHUR E. LAWRENCE, OF SAN 1XMARCOS, TEXAS, ASSIGNOR OF ONE-HALF TO NORA
HANKE, OF HAYS COUNTY, TEXAS.
VULCANIZER.Specification of Letters Patent. Patented Sept. 19, 1916.
Application filed April 17, 1914. Serial No. 832,604.To all whom it may concern:
Be it known that I, Anrurt E. LAW-
RENCE, a citizen of the United States, resid-
ing at San Marcos, in the county of Hays
5 and State of Texas, have invented new and
useful Improvements in Vulcanizers, of
which the following is a specification.
My invention relates to a vulcanizer espe-
cially designed for vulcanizing the casings
10 or shoes of pneumatic tires, whereby repairs
may be made in a ready, convenient and
economical manner.
The primary object of the invention is to
provide a vulcanizer which is simple, reliable
15 and efficient in construction, capable of being
easily applied to the casing which is to be
repaired, and which provides for the uni-
form heating of the casing over the entire
area- to be vulcanized.
20 A further object of the invention is to pro-
vide a vulcanizer which is curved in cross
section to correspond to the tire casing, and
is chambered to hold a combustible fluid
which is ignited to produce the required
25 heat, and has its chambered surface so con-
structed as to maintain the fluid at the dif-
ferent points at the required level relative
to different portions of the surfaces under
treatment to prevent either over or under
so heating.
A still further object of the invention is
to provide a vulcanizer by which patches for
closing punctures or blow outs may be readily
and conveniently applied, and surface cuts,
35 bruises and other imperfections cured, to
cover and protect the fabric of the casing.
The invention consists of the features of
construction, combination and arrangement
of parts herein fully described and claimed,
40 reference being had to the accompanying
drawings in which
Figure 1 is a view showing the applica-
tion of the invention to a wheel for use in
vulcanizing a portion of the outer casing.
45 'ig. 2 is a side elevation of the vulcanizer,
parts being broken away to show interior
construction. Fig. 3 is a top plan view of
the same. Fig. 4 is a vertical transverse sec-
tion through the vulcanizer.
50 Referring to the drawing, 1 designates the
vulcanizer as a whole, which is generally of
oblong rectangular form, and includes a bot-
tom 2 and side and end walls 3 and 4 rising
therefrom. The vulcanizer may be of any
55 suitable length and width, and its bottomwall 2, which constitutes the vulcanizing
surface, is longitudinally and transversely
curved to inclose or straddle the tire. It
will of course be understood that the radius
of the bottom wall 2 will also conform to 60
that of the particular portion or section of
the tire which is to be covered, and that the
vulcanizer may be made of different sizes to
suit different sizes of tires.
The bottom wall 2 is provided with ex- 65
tensions 5 depending below the lower eages
of the side walls 3, to insure the secure seat-
ing of the device in place, while the side
walls 3, which are preferably straight and
parallel, and provided with lower curved 70
edges of the same radius as the bottom wall
2, are spaced a distance greater than the
maximum width or diameter of the bottom
wall and are provided at their lower edges
with bottom portions or inward extensions 6 75
connecting the same with the depending
sides of the bottom wall, so that the heat
from the heating agent may be transmitted
to the wall 2 throughout its intended vul-
canizing area. For the purpose of securing 80
the device upon a wheel during the vulcaniz-
ing process, bracket arms 7 are.provided and
depend from the extensions 5 in transversely
alined pairs, said arms having hooked lower
ends to receive cross bolts 8 which are pro- 85
vided with retaining nuts 9 and are centrally
apertured for the reception of binding and
centering screws 10, each having a cushioned
head 11 to bear against the rim of the wheel
and a retaining nut 12 to secure it in posi- 90
tion. Fig. 1 shows the application of the
invention, from which it will be seen that the
device is arranged to straddle the tire casing
13, and that the cross bolts S extend beneath
the rim 14 of the wheel and the bolts 10 bear 95
against the rim to support the device in
position, the mode of application and re-
moval being obvious from the foregoing de-
scription.
The walls 3 and 4 of the vulcanizer bound 100
the wall 2 and form a heating box or cham-
ber to receive a combustible fluid, such as
gasolene, which is intended to be ignited for
the purpose of heating the bottom wall 2 for
the vulcanizing action. For the purpose of 105
increasing the efficiency of the heating agent,
I provide the interior of the box or chain-
ber with longitudinally and transversely ex-
tending partitions or webs 15 and 16, which
are comparatively thin, and which subdivide 1101,198,932.
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Lawrence, Arthur E. Vulcanizer, patent, April 17, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857817/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.