Year: 1899

page_text: Date of Application, 28th Apr. 1899
Complete Specification Left. 30th Dec., 1899-Accepted, 10th Feb., 1900
Date of Application, 28th Apr. 1899
Complete Specification Left. 30th Dec., 1899-Accepted, 10th Feb., 1900
I, JAMES ALLEN SWINEHART, residing at No. 727, East Exchange Street, in
the City of Akron, in the County of Summit in the State of Ohio, one of the
United States of America, Contractor, do hereby declare the nature of this
invention to be as follows:-
This invention relates to elastic tires for vehicles which mainly consist of two
parts. First,
The first part consists of a metallic tire adapted to fit the vehicle wheel and
having in its periphery a channel with a flat bottom and slightly outwardly
sloping sides.
The second part is a band of flexible vulcanized rubber adapted to fit in the
channel of the metallic tire, the outer portion extending above the metallic tire,
and being rounded to form the bearing portion of the wheel. In each of the flat
sides of the rubber portion that rest against the inside of the flanges of the metal
tire is a longitudinal groove, preferably semicircular in section, and immediately
below these are bedded at intervals, transverse rods, the ends of which are flush
with the sides of the tire at the points where they are located. On the bottom
of the rubber portion and extending up the sides a short distance is a strip of
heavy duck or other strong woven fabric, which being in position when the
rubber is vulcanized, becomes impregnated with it and adheres closely to it.
The tire is completed by placing the rubber portion inside the metal part, draw-
ing it tightly and uniting its ends in the usual manner, the rubber portion is
secured from dislodgment in the metal part by two wires, one on either side
of the rubber resting in the longitudinal grooves, drawn tightly and having
their ends united by any of the well known methods.
These wires engage the ends of the transverse rods in the rubber and thus
hold the rubber tightly in the channel.
1000
Elastic Vehicle Tires.
I, JAMES ALLEN SWINEHART, residing at No. 727, East Exchange Street, in
the City of Akron, County of Summit, and State of Ohio, one of the United States
of America, Contractor, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention has relation to combined metal and rubber vehicle tires, and has

page_text: especial relation to that class in which the metal portion has a channel in its
periphery with a flat bottom and slightly outwardly sloping sides.
Difficulty has been found in tires of this general class in preventing the rubber
portion from expanding from pressure against the road bed and working out of
the metal portion; a further objection has been found in the fact that a fine gritty
dust finds its way between the tires by the slight movement of the rubber portion
due to expansion and contraction at the bearing point, and grinds away the
rubber portion until it becomes loose.
The object of my invention is to overcome these objections by forming in the
sides of the rubber portion that enter the metal part, longitudinal semicircular
grooves and placing below said grooves transverse rods with their ends flush with
said sides, and covering the flat base of the rubber portion with a strip of heavy
canvas, caused to adhere to the rubber by vulcanization, and it further consists in
placing in the grooves of the rubber portion on each side, wires tightly drawn
and having their ends secured by brazing or other equivalent method which bear
on the ends of the transverse rods.
In the accompanying drawings in which similar reference numerals indicate
like parts in the different figures,
Figure 1 is a portion of the rubber part in perspective with transverse rods
and canvas bottom.
Figure 2 a similar view of the metal and rubber portions exhibiting the
retaining wires, and
Figure 3 a similar view of a modified form provided with a central opening to
render it a cushion tire.
Describing these drawings 1 is the metal tire and 2 the rubber; in the form
shown in Figures 1 and 2 I form in the flat sides of the rubber tire 2 that rest
against the inside of the flanges of the metal tire 1 longitudinal grooves 3 pre-
ferably semicircular in section, and immediately below them I bed transverse
rods 4 at intervals, the ends of which are flush with the sides of the tire at the
points where they are located.
The metal tire 1 is of the usual channeled form the channel being flat on the
bottom and the sides sloping. On the bottom of the rubber tire I place a strip
of heavy duck or canvas with its edges preferably extending a short distance
up the sides, which being in position when the rubber is vulcanized, becomes
impregnated with it and adheres closely to the tire. The tire is completed by
placing the rubber portion inside the metal part, drawing it tightly and uniting
the ends in any desired manner. As a part of the same process wires 5 are
placed in the grooves 3 drawn tightly and their ends united in any of the well
known methods.
It will be seen that the wires 5 hold the rubber tightly in the channel, by
engaging the ends of the rods.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. An improved tire for vehicles consisting of a metallic band to surround
the wheel having a channel in its outer periphery, in combination with a rubber
band adapted to fit said channel and project above it, said rubber band having
in its base transverse metallic rods at intervals with their ends flush with said
tire, longitudinal grooves in the sides of said rubber band immediately above said
transverse rods, and endless wire bands secured in tension in said grooves.
2. An improved rubber tire consisting of a band of rubber having a portion
adapted to fit a channeled metal tire, and having longitudinal grooves in the
sides of the part arranged to enter the metallic tire, and transverse rods in its
base arranged at intervals immediately below said grooves and with their ends
flush with the sides of the metal tire at their points of location.
3. An improved tire consisting of a band of rubber having a portion adapted

page_text: to fit a channeled metal tire and having longitudinal grooves in the sides of the
part adapted to enter the channels of the metal tire, with transverse rods in its
base arranged at intervals immediately below said grooves with their ends flush
with the sides of the metal tire, and a layer of fibrous fabric attached to the
base of said rubber tire.
4. An improved tire consisting of a band of rubber having a portion adapted
to fit a channeled metal tire and a portion to extend above said metal part, and
having longitudinal grooves in the sides of the part adapted to fit the metal part,
and a longitudinal opening in the part to extend above the metal tire.
Din 10th dess of December 1899
CHEESBROUGH & ROYSTON,
Applicant's Patent Agents,
15, Water Street, Liverpool.