Improvement in the Wheels of Bicycles and other Wheels.
Year: 1893

page_text: Date of Application, 2nd Jan., 1893
Complete Specification Left, 30th Sept., 1893-Accepted, 4th Nov.. 1893
PROVISIONAL SPECIFICATION.
Improvement in the Wheels of Bicycles and other Wheels.
THOMAS JAMES EARLS of 40 Clonliffe Road, County of Dublin Ireland
Foreman Tailor do hereby declare the nature of this invention to be as follows :—
The rim perforated at intervals, in which is to be inserted tubes or pistons,
through which tubes or pistons, pistonrods are to act, to which pistonrods a spring
or springs are to be attached to each, also lever springs.
The outer ends of pistonrods to have a spring foot or receptacle for indiarubber
pads or band, or both.
The pistonrods to have a spring arm or lifter on each.
The spokes converging from both sides of rim to nave.
The rim if solid may not need tubes inserted.
اليمن
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COMPLETE SPECIFICATION.
Improvement in the Wheels of Bicycles and other Wheels.
I. THOMAS JAMES EARLS, of 40 Clonliffe Road, in the County Dublin,
Ireland, Foreman Tailor or Cutter, 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 has for its object improvements in the construction of wheels for
cycles and other vehicles, whereby the vibration consequent on rolling over rough
or uneven surfaces is reduced to a minimum.
In carrying out my invention I form a wheel of two, three or more concentric
bands, which when connected together as presently described, I call for
convenience the rim of the wheel. These bands are arranged one within the
other at suitable distances apart, and are perforated radially at suitable intervals.
In these perforations may be inserted tubes or collars through which radial piston-
rods or plungers are to act. These piston rods or plungers are provided at their
outer ends with pads of india-rubber, or suitable springs, and are surrounded
between each concentric band by a spiral spring, whereby the piston rod or plunger
is enabled to yield to pressure, and immediately (upon the pressure being removed)
to resume its normal position.
The spokes may converge from the outer concentric band, either, on the outer
edges of, or through the inner bands.
In order that my said invention may be more readily understood I will describe
the accompanying drawing, which illustrates a segment of my improved
construction of wheel.
a, a, are the concentric bands constituting the rim of the wheel; b, b, the spokes ;
c, c, the radial piston rods or plungers, which are shown to work through simple
perforations in the bands, but tubes or collars may be first inserted in the bands, if
found necessary to facilitate the sliding movement of the piston rods or plungers.
e, e, are the pads of india-rubber attached to the outer ends of the piston rods or
plungers. Other terminals may be attached, such as suitable springs; or a
continuous india-rubber band may be wound round the entire circumference formed
by the ends of the piston rods or plungers. f, f, are the spiral springs encircling
he piston rods or plungers in the annular spaces between the concentric bands-one
Price 77

page_text: end of each resting against the under surface of the concentric bands while the
other end impinges against a collar g, formed on the piston rods or plungers.
If desirable these spiral springs may be protected by being enclosed in a brass,
or other tube as shown at h.
This tube serves the purpose of strengthening the spring, and also preserving it
from dust and mud.
In addition to the spiral springs herein described, and illustrated I may use
curved flat springs, the convex portion of cach being attached to the under surface
of the concentric bands, while the free ends may impinge against the shoulders g.
It is obvious that the concentric bands may be of any desired number and may
be corrugated transversally, or longitudinally, and may also be secured in the
vertical plane by wire lacing, casing or otherwise, or they may be held in place by
the spokes.
The action of my invention is obvious:-
As the wheel rolls over the surface, the piston rods or plungers yield
individually, and independently, and are restored to their normal position by the
spiral springs as described.
Thus a wheel of elastic and re-bounding capacity is produced, while the
inconvenience resulting from the use of wheels of the pneumatic character is
entirely obviated.
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 :-
In the construction of wheels for bicycle and other purposes, the combination
formed by the concentric bands-the piston rods or plungers, and the spiral springs
(or curved springs) all arranged and operating in the manner substantially as
herein described and set forth.
Dated the 29th day of September 1893
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.