Improvements in Wheels for the Purpose of Receiving Pneumatic Tyres.
Year: 1894

page_text: Date of Application, 12th Apr., 1894
Complete Specification Left, 12th Jan., 1895-Accepted, 16th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in Wheels for the Purpose of Receiving Pneumatic
Tyres.
I, DAVID PLUMMER Martin Street South Circular Road Dublin Coach
Smith do hereby declare the nature of this invention to be as follows :-
This invention has reference to certain improvements in the construction of
wheels of vehicles for the purpose of facilitating and simplifying the application
of pneumatic tyres thereto.
In carrying out my invention, I propose in the first instance, to dispense with
the ordinary wooden rims or felloes usually used in the formation of wheels, and
instead, I build a hub provided with spokes in the ordinary way, and on the free ends
of these spokes, I mount a suitable cap of metal or other suitable material
provided with a screw thread in its head for the purpose presently described.
Round the wheel frame thus prepared the pneumatic tyre is applied direct, and
is secured by means of radial screws passed through the rim carrying the air tube,
and penetrating the threaded aperture in the metal caps just referred to.
Thus by the construction of my improved wheel frame the tyre known com-
mercially as the "pneumatic tyre," can be applied direct to the spoke ends, and
the wooden rim or felloes as at present used thereby dispensed with.
Dated the 11th dow of April 1904
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Wheels for the Purpose of Receiving Pneumatic
Tyres.
I, DAVID PLUMMER, of 1 Martin Street, South Circular Road, Dublin, Coach
Smith, 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 certain improvements in the construction of
wheels of vehicles for the purpose of facilitating and simplifying the application
of pneumatic tyres thereto.
In carrying out my invention, I propose in the first instance to dispense with the
ordinary wooden felloes and metal rim, usually used in the formation of carriage
wheels, and instead I build a hub provided with spokes in the ordinary way, and
on the free ends of these spokes, 1 mount a cap of metal or other suitable
material provided with a threaded aperture in its head for the purpose presently
described.
Round this wheel frame the previously prepared pneumatic tyre is applied direct,
as hereinafter described, and is secured by means of radial screws passed through
the metal rim carrying the air tube, and penetrating the threaded aperture in the
metal caps just referred to.

page_text: The accompanying drawings will enable the construction of my invention to
be more readily understood and carried into practice
Fig. 1, is an elevation of a complete pneumatic tyred wheel constructed according
to my said invention;
Fig. 2, shews end of spoke with section of cap, nipple, radial screw,
rim; and
Fig. 3, represents the metal cap (partly in section) and nipple detached.
and tyre
a, is the ordinary wooden spoke; b, the metal cap fitted on to the end of same;
c, the nipple which is tapped into the threaded aperture in the metal cap; d, is the
radial screw; and e, the metal rim which receives the air tube and cover constituting
what is commercially known as the "pneumatic tyre."
The mode which I prefer of applying the tyre is as follows:-
Having prepared the wheel frame to suit the diameter of the rim carrying the
air tube, the frame is laid horizontally on a circular platform bearing on the free
ends of the spokes, the rim is then laid on, and the position for the screw holes
being marked and drilled, the hub of the wheel is subjected to pressure by means
of a jack or otherwise until the diameter is sufficiently contracted to allow the
rim to fall into position.
The pressure is then removed, and the frame returns to its true plane, whereupon
the nipples c, and screws d, are screwed home and the rim thus securely bound
to the frame.
The air tube f(Fig. 1) is lastly secured to the metal rim by any of the well-
known methods at present in use, and thereupon my improved pneumatic tyred
wheel is complete.
Instead of using a detachable nipple and screw, as described, I may use, if found
more convenient a double headed screw.
It is understood that the heads of the screws should be countersunk flush with
the rim, in order to leave the surface smooth for the reception of the air tube.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I would have it
understood that what I claim is :-
First. In wheels for carriages and other vehicles, the construction of frames,
and application thereto of tyres, whereby the ordinary felloes are dispensed with,
in the manner substantially as herein described.
Second. The construction of wheels for carriages and other vehicles, in manner
whereby the tyre commercially known as the "pneumatic tyre," can be applied
direct to the spokes, thus dispensing with the ordinary felloes at present in use,
substantially as herein described and set forth.
Dated the 10th day of January 1895.
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.