Improvement in Wheels for Velocipedes and other Vehicles.
Year: 1893

page_text: Date of Application, 2nd Mar., 1893
Complete Specification Left, 2nd Dec., 1893-Accepted, 2nd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvement in Wheels for Velocipedes and other Vehicles.
THOMAS ARTHUR MACMURROGH MURPHY Clerk in Holy Orders, M.A.,
18 Warrington Place, Dublin, do hereby declare the nature of this invention to
be as follows:-
I propose, for the purpose of keeping two concentric tyres in the same perpen-
dicular, to place at intervals between the rims pistons as in the diagram. The
number of these pistons may vary and can be used with any spring.
The piston shall consist of an outer hollow tube (t) extending half-way or more
between the rims, the piston rod (r) may either be solid or a hollow bar with an end (e)
fitting exactly the outer tube (t) capped with a rubber or other buffer (b) and
working through a hole the size of the piston rod in the end of the outer tube.
The piston rod and outer tube shall be attached to the rims by a rivet or screw, or
soldered or welded thereto.
February 28th 1893.
COMPLETE SPECIFICATION.
Improvement in Wheels for Velocipedes and other Vehicles.
I, THOMAS ARThur MaoMurrogh Murphy 18 Warrington Place Dublin
Clerk in Holy Orders 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 :-
Whereas it is the common tendency of velocipede wheels constructed of two
concentric rims joined together by means of springs to leave the perpendicular
when turning or driven at considerable speed
The object of my invention is to provide means to prevent said concentric rims
from leaving the perpendicular.
In carrying out my invention I place at intervals between the springs connecting
the rims a combination of hollow tube and piston described in the following particulars
and illustrated in the diagram.
And in order that my said invention may be particularly described and ascertained
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. A is an illustration of one, or more of the combinations of tube and piston.
Fig. B. is a sectional view of one of these said combinations.
Fig. C. is a sectional view of same said combination with a spiral spring in position
hereinafter particularly described.
The springs connecting the rims used at present in wheels are omitted for the
sake of clearness.
I propose for the purpose of keeping two concentric rims in the same perpendicular
or plane to place at intervals between the rims a combination of tubes and pistons
as in Fig. A. The number of these combinations may and can be used with
any spring.
The combination shall consist of an outer hollow tube (4) represented in Fig. 1.
extending half-way or more between the rims, the piston rod (1) may either be

page_text: solid, or a hollow bar with an end (e) fitting exactly the outer hollow tube (t)
capped with a rubber or other buffer (b) and working through a hole the size of the
piston rod in the end or cap (c) of the outer tube. The piston rod and outer tube
shall be attached to the rims by a rivet, or screw, or soldered, or welded thereto.
The outer hollow tube (t) shall be fitted with an end or cap (e) which shall screw
on to the outer hollow tube (thus allowing easy access to the piston rod and spring
hereinafter particularly described) on the inward side of which there may or shall
be a rubber or other guard or buffer (g) to resist downward action of the piston rod
when the revolution of the wheel brings each piston to its zenith point.
Inside of
hollow tube and between the cap of the piston rod and outer rim of tyre there shall
be a spiral spring (s) as represented in Fig. C. or some other form of spring.
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. For velocipede wheels and wheels for other vehicles a combination of tube,
piston and spring for the purpose hereinbefore described and illustrated by the
drawings.
2. The general construction, combination, and arrangement of the several and
respective parts, together constituting my invention of improvement in wheels
substantially as hereinbefore described and illustrated by the drawings.
Dated this 28th day of February 1894.
THOMAS ARTHUR MACMURROGH MURPHY.