Improvements in Pneumatic Tires, and in Rims therefor.
Year: 1895

page_text: Date of Application, 19th Aug., 1995-Accepted, 9th Nov., 1895
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tires, and in Rims therefor.
1, JULIUS SCHIPKOWSKY, of South Milwaukee, in the County of Milwaukee,
and State of Wisconsin, United States of America, Gentleman, 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:-
This invention relates to an improvement in that class of pneuínatic tires wherein.'
two tubes are provided and arranged one within the other, and the invention
consists in certain hereinafter-described improvements in the means for joining the
outer or protector tube to the rim or tire of the wheel.
In the accompanying drawings,
Figure 1 represents a cross-section taken through a tire having my improvements
applied;
Fig. 2 a perspective view of a portion of the outer or protector tube and showing
attached thereto the devices for assisting in securing it to the tire of the wheel;
Fig. 3 a similar view of the tire or rim of the wheel and illustrating the devices
which it carries for effecting the connection aforesaid.
Fig. 4 an enlarged detail perspective of one of the eyelets which are secured to
the outer tube.
The reference-numeral 1 indicates the rim or metallic portion of the wheel-tire,
which is connected to the spokes 2 as usual and which has its sides bent inwardly
or toward each other to form the lips 3. Formed integral with the lips 3 and
projecting inwardly therefrom are the teeth 4 which are arranged on the lips 3
at predetermined and equidistant points and which are formed by preference
tapering.
5 indicates the outer or protector tube which may be of the usual or any approved
construction, and which has arranged therein the inner or air-receiving tube 6.
The tube 5 is formed with a longitudinal slit 7 extending diagonally through its
sides aud longitudinally throughout its length. The purpose of this slit is to permit
the insertion of the tube 6.
The outer tube 5 is joined to the rin 1 at that part in which the slot 7 is formed
and this portion is formed with a thickened part 8 directly adjacent to the slit 7.
9 indicates the eyelets aforesaid and these consist of integral steel plates formed
with au approximately horizontal base portion 10 and perpendicular part 11.
The
base portion 10 is provided with the openings 13 through which rivets pass to secure
it to the thickened portions 8 of the tube 5 while the perpendicular portion 11 is
formed with the transverse slot 12.
The base portions 10 of the eyelets 9 are firmly secured to the thickened
portions 8 by means of rivets passed through the openings 13 while the studs 11
project upwardly from the tube 5 and into the space between the lips 3 of the
rim 1, so that the slots 12 will be capable of receiving the teeth 4 of the
rim 1. The eyelets 9 are arranged on the tire-tube 5 at intervals equal to
the intervals of the teeth 4 so that when the parts are assembled the teeth and
eyelets will coincide and make it possible to connect the parts.
In the use of my invention the air-receiving tube 6 is placed within the tube 5
and the edges of the latter tube formed by the slit 7 are drawn together so that
the eyelets 9 will be capable of receiving their respective teeth 4 within the
slot 12 of their perpendicular studs 11. By this arrangement the tube 5 is
connected to the rim 1 in a secure and effective way and the displacement or
disconnection of the parts from the operation of the tire rendered impossible.

page_text: Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed I declare that what I
claim is
In a pneumatic tire, the outer case or cover thereof having a diagonal split
extending longitudinally around its inner face and forming overlapping edges and
thickened adjacent to said split in order to afford sufficient body and stiffness to
render the tire self-supporting, and a series of fastening plates arranged in pairs
throughout the length of said case or cover, the members of each pair being
oppositely disposed to each other and riveted to the thickened inner face of the
tire upon each side of the split therein and slightly removed therefrom, each of said
fastening plates being made from sheet metal having a perforated base portion
adapting it to be riveted to said outer case or cover and also having a perpendicular
portion disposed at a right angle to the base and extending inwardly toward the
rim, said perpendicular portion being slotted to engage teeth on the rim, in
combination with a bicycle wheel rim formed from a strip of sheet metal having its
opposite edges overturned and disposed outwardly and extending in parallel relation
to the main portion or body of the rim, said bent-over portions or edges being
substantially of U-shape in cross section and projecting inwardly toward each other
sufficiently to form a seat for the tire, and a series of projections or teeth formed
integrally with the inwardly projecting edges of the rim and disposed oppositely.
to each other, said projections or teeth being formed at regular intervals
throughout the length of the rim and adapted to engage the fastening plates
carried by the outer case or cover of the tire, substantially as and for the purpose
specified.
Dated thio 10th dex of Aout 100%
}
I BOULT & WADE,
Agents for the Applicant.