A New or Improved Spring Rim for Wheels of Vehicles, especially suitable for Heavy Vehicles.
Year: 1896

page_text: Date of Application, 11th July, 1896-Accepted, 22nd A.g., 1896
COMPLETE SPECIFICATION.
A New or Improved Spring Rim for Wheels of Vehicles, especially
suitable for Heavy Vehicles.
I, ALFRED YOUNGMAN, of "Sutton Court," Grosvenor Road, Bournemouth, in
the County of Hants, 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 wheels of vehicles and consists of a new or improved
spring rim by the use of which great ease of running is secured, with an
economical and simple form of wheel. The essential feature of my invention
consists in the employment of two rims one outside the other, and connecting the
two by a spring or springs, in such manner that any vibration or jolting of the
outer rim occasioned by irregularities of the ground is taken up or intercepted by
the springs leaving the interior rim as well as the wheel and axle to run smoothly
without jolting.
In order that my invention may be most fully understood and ascertained, I
append drawings in which :--
Fig. 1. is an elevation of part of a wheel.
Fig. 2. is a section of the same.
Fig. 2 is an enlarged section of Fig. 2, shewing a detail hereinafter
explained.
Fig. 3. is a part elevation of a modified form of wheel.
Fig. 4. is a section of the same.
Fig. 4 is an enlarged section of Fig. 4, shewing a detail hereinafter
explained.
A designates the hub or boss of a wheel having spokes or arms a and an inner
rim B. An outer rim C is disposed concentrically to B thus leaving an annular
space between the two of any convenient and suitable width. A spring D
corrugated transversely to its length is inserted between these two rings, and
attached at intervals to each of them by rivets, bolts, or screws b, c, in such manner
that the inner and outer rims are spring-connected and thus any part of the outer
rim which is in contact with the ground can be forced nearer to the corresponding
part of the inner rim. E is a rubber or other soft and resilient tyre fixed to the
outer rim for the purpose of securing noiseless running. E' (Figs. 2 and 4^) is a
canvas or other covering which may be used to protect the tyre E. The
springs D can be hidden from sight by means of sides or flanges d attached
preferably to the inner rim.
The rivets or bolts which fasten the springs to the rims may be arranged to
work in elongated holes or slots so as to allow of a perfectly free movement of the
springs and rims.
In Fig. 3. is shewn a modification in which the "waved" or "undulated"
spring 1) is dispensed with and a number of circular or elliptical springs G are
employed, arranged as in the other case between the inner and cuter rims B and C
to form a spring connection between the two. The elliptical springs G may be
attached to either or both of the rims in any convenient manner, and the whole
may be covered in by sides or flanges d which would be made of such shape that
they form an ornamental part of the wheel.
Instead of circular or elliptic rings G, a continuous spring may be formed of a
thin strip of steel wound helically and inserted between the two rims.

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 :-
1. A spring wheel for vehicles formed by two rims one inside the other,
and having a spring or springs interposed, substantially as described and
shewn.
2. A spring wheel rim substantially as described and shewn in the accompanying
drawings.
3. In a spring wheel for vehicles, the combination of a hub or boss, spokes or
arms, an inner rim attached rigidly thereto, an outer rim having a rubber or other
resilient tyre forming a tread and a spring or springs connecting the two elastically,
substantially as described and shewn."
4. In a spring wheel for vehicles, the combination of the hub A, the arm a,
the inner rim B, the outer rim C, the spring or springs D or G, the outer
tyre E with or without the cover or protector E and the sides d, substantially as
described and shewn.
5. A spring wheel rim substantially as described and shewn with reference to
Figs. 1 and 2.
6. A spring wheel rim, substantially as described and shewn with reference to
Figs. 3 and 4.
Dated this Ninth day of June 1896.
W. H. MURCH,
Upper Terrace Road, Bournemouth, Agent for the Applicant.