Tire-Tightener. Page: 2 of 2
[2] p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
UNITED
PATENT OFFICEo
WILLIAM DOBROWOLSKI AND HARRY WISE, OF SAN ANTONIO, TEXAS.
TIRE-TIGHTENER.
SPECIFICATION forming part of Letters Patent No. 579,260, dated 1March 23, 1897.
Application filed September 5, 1896. Serial No. 605,006, (No model,)ITo all zwho mo it 7ay concern,:
Be it known that we, WILLIAM DOBRo-
WOLSKI and HARRY WISE, citizens of the
United States, residing at San Antonio, in
5 the county of Bexar and State of Texas, have
invented a new and useful Tire-Tightener,
of which the following is a specification.
The invention relates to improvements in
tire-tighteners.
10 The object of the present invention is to
provide a simple and inexpensive device
adapted to be applied to all kinds of vehicle-
wheels and capable of enabling the felly to
be expanded and contracted without the use
15 of a skilled mechanic to tighten a tire in hot
dry weather and to permit the woodwork to
expand in damp weather and prevent the
wheel from becoming dished.
The invention consists in the construction
20 and novel combination and arrangement of
parts hereinafter fully described, illustrated
in the accompanying drawings, and pointed
out in the claim hereto appended.
In the drawings, Figure 1 is a side eleva-
25 tion of a portion of a wheel provided with a
tire-tightener constructed in accordance with
this invention. Fig. 2 is a longitudinal sec-
tional view. Fig. 3 is a detail perspective
view of the adjusting-screw. Fig. 4 is a de-
30 tail perspective view of the felly-engaging
block or nut.
Like numerals of reference designate corre-
sponding parts in all the figures of the draw-
ings.
35 1 designates a spoke having its outer end
reduced and provided with a thimble or sleeve
2, extending beyond the outer end of the
spoke and forming a socket for the reception
of the inner portion 3 of an adjusting-screw
40 4. The adjusting- screw 4 has an outer
threaded portion and the inner smooth por-
tion 3, which is of greater diameter than the
threaded portion and which fits snugly within
the extended portion of the sleeve or thim-
45 ble, is rounded, and bears against the outer
end of the spoke, as clearly illustrated in Fig.
2 of the accompanying drawings. The en-
larged smooth portion 3 is detachably swiv-
eled in the socket of the sleeve or thimble 2
50o by screws 5, arranged in the threaded perfo-
rations of the latter and engagingan annular
groove 6 of the portion 3.
The outer threaded portion of the adjust-
ing-screw engages a threaded bore or open-ing of a nut or block 7, which is provided 55
with a concave outer face to conform to the
configuration of a felly 8, and the latter is
provided with a socket 9, which receives that
portion of the adjusting-screw which projects
beyond the nut or block 7. The inner face 6o
of the nut or block is flat at the center around
the threaded opening or bore and is curved
at opposite sides thereof, as shown.
The adj usting-screw is operated by a flange
or collar 10, located at the inner ends of the 65
threaded and smooth portions thereof and
fixed to the same, and the collar or flange 10,
which also bears against the outer end of the
sleeve or thimble 2, has a polygonal edge
forming a wrench-seat. 70
By rotating the adjusting-screw the nut or
block 7 is moved outward and inward on the
same to expand the felly and tighten the tire
or release the parts to permit the woodwork
to expand, and this adjustment maybe made 75
with an ordinary wrench without the aid of
a blacksmith or other skilled mechanic.
It will be seen that the device is simple,
strong, and durable, that it is applicable to
all classes of vehicle-wheels, and that it ivill 8o
enable the parts to be readily adjusted to
expand them for tightening the tire and to
release them for permitting the woodwork to
expand without dishing the wheel.
What we claim is- 85
In a device of the class described, the com-
bination with a felly provided with a socket,
and a spoke having a thimble extended be-
yond its outer end, a nut or block fitting
against and conforming to the configuration 90
of the felly and provided with a threaded
opening registering with the socket thereof,
and an adjusting-screw having a wrench-seat
and composed of an outer threaded portion
engaging the threaded opening of the nut or 95
block, and an inner enlarged portion ar-
ranged within the extended portion of the
thimble and bearing directly against the
outer end of the spoke, substantially as and
for the purpose described. 1oo
In testimony that we claim the foregoing as
our own we have hereto affixed our signatures
in the presence of two witnesses.
WILLIAM DOBROWOLSKI.
HARRY WISE.
Witnesses:
PAUL RIEBE,
RICHARD KIUEHN,
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Dobrowolski, William & Wise, Harry. Tire-Tightener., patent, March 23, 1897; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174557/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.