Improvements in the Construction of Pneumatic or Oushioned Tyred Wheels for Carriages or other Vehicles.
Year: 1895

page_text: Date of Application, 28th Sept., 1895
Complete Specification Left, 20th June, 1896-Accepted, 29th Aug., 1896
•
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Pneumatic or Oushioned
Tyred Wheels for Carriages or other Vehicles.
I, Joseph LINDSAY, of 2 Innisfallen Parade, North Circular Road, Dublin,
Ireland, Coach Builder, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to improvements in the construction of pneumatic
or cushioned tyred wheels for carriages and other vehicles, and is especially
designed to facilitate the application of the metal rim direct to the spokes without
the intervention of the ordinary wooden felloes.
In carrying out my invention I propose in the first instance to fix a suitable cap
on the free end of the spoke.
This cap is provided with a shank or bolt head carrying a right hand thread for
the purpose presently described.
Over this shank or bolt head is then screwed a coupling, threaded differentially
towards both ends.
I next pass through the bed of the metal rim at intervals corresponding to the
number of spokes in the frame, suitable bolts provided with a left handed thread.
These bolts are countersunk and are provided with a feather or square head to
prevent turning.
As thus constructed I apply the rim to the spokes as follows:
The diameter of the spoke frame (including the coupling carried on the top of
each spoke) being arranged so as to be somewhat less than that of the rim, the free
ends of the couplings, are penetrated by the points of the bolts passing through the
rim, whereupon the couplings are turned in the direction of the hands of a clock
(looking towards the end of the spoke), and owing to the fact that the coupling
embraces both the capped end of the spoke and the end of the rim bolt, the result
is that the spoke frame and the rim are readily and securely bound together.
By this arrangement it is obvious that the present method, namely, the
necessity of dishing or contracting the spoke frame, is completely dispensed with.
Dated this 27th day of September 1895.
J. K. FAHIE & SON,
9 Westland Row, Dublin, Agents for Applicant.
Improvements in the Construction of Pneumatic or Cushioned
Tyred Wheels for Carriages or other Vehicles.
I, JOSEPH LINDSAY of 2 Innisfallen Parade, North Circular Road, Dublin,
Ireland, Coach Builder, 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 reference to improvements in the construction of pneumatic
or cushioned tyred wheels for carriages and other vehicles and is especially

page_text: designed to facilitate the application of the metal rim direct to the spokes without
the intervention of the ordinary wooden felloes.
In carrying out my invention 1 propose in the first instance to fix a suitable cap
on the free end of the spoke. This cap is provided with a shank or bolt head
carrying a right hand thread over which is screwed a coupling threaded differ-
entially towards both ends (i.e. threaded in a right hand direction at one end and in
a left hand direction at the other end) for the purpose presently described. I next
pass through the bed of the metal rim at intervals corresponding to the number
of spokes in the wheel suitable bolts provided with a left handed thread.
These bolts are counter-sunk and are provided with a feather or square head to
prevent turning.
In order that my said invention may be more readily understood and carried
into practice I will proceed to describe the accompanying drawings.
Fig. 1 represents an elevation of a complete wheel constructed according to my
invention, and Fig. 2 is a detail view hereinafter more fully described.
The cap a, which may be of any suitable material is fixed direct on to the spoke
end, by means of screws inserted transversely round the side, or otherwise as may
be found convenient; b is the shank or bolt which as already stated carries a right
hand screw thread, c is the differentially threaded coupling (i.e. a coupling provided
with a right hand thread at one end and a left hand thread at the other end so as
to engage the right hand screw of the shank b and the left hand screw of the
bolt d).
This coupling passes partly over the cap head; d is the bolt which is passed
through the bed of the rim.
This bolt being counter-sunk and provided with a feather cannot turn when
being acted upon by the coupling as presently described.
Having thus fitted the spoke ends with my improved cap and coupling, and
having inserted in the rim the required number of bolts according to the number
of spokes in the frame I proceed to affix the rim to the frame in the following
manner.
The diameter of the spoke frame (including the cap and coupling) being
arranged so as to be somewhat less than that of the rim, the free ends of the
couplings are penetrated by the bolts (passing through the rim) whereupon the
couplings are turned in the direction of the hands of a clock (looking towards
the end of the spoke) and owing to the fact that the coupling embraces both
the capped end of the spoke and the end of the rim bolt, the result is that the
spoke frame and the rim are readily and securely bound together.
By this arrangement it is obvious that the present method-namely the
necessity of dishing or contracting the spoke frame is entirely dispensed with.
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 :-
First. In the construction of wheels for carriages and other vehicles the
method of securing the metal rim direct to the spokes in the manner substantially
as herein described and set forth.
Secondly. The use and application of a coupling c threaded differentially in
combination with cap a, and bolt d, for the purpose of securing the metal rim
direct to the spokes in the manner substantially as herein. specified and set forth.
Dated this 19th day of June 1896
J. K. FAHIE & SON,
9 Westland Row, Dublin, Agents for Applicant.