Improvements in and relating to Pneumatic Tyres for Carriages and other Vehicles.
Year: 1894

page_text: Date of Application, 1st Dec., 1894
Complete Specification Left, 31st Aug., 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pneumatic Tyres for Carriages and
other Vehicles.
I, JOSEPH BOYD, of 90 Upper Georges Street, Kingstown, County Dublin,
Ireland, Medical Doctor, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to a new or improved method of applying and
securing pneumatic tyres to the wheels of carriages, and other vehicles, in a simple,
expeditious, and efficient manner.
In carrying out my invention I propose to deal with the tyre composed of an
air tube enclosed within an outer covering and secured within the flanges of a
specially prepared rim, by wires threaded longitudinally along the edges of the
covering.
The application and securing of the tyre, as thus prepared, to the ordinary
wheels of carriages, constitutes the substance of my invention.
To this end, I form, in the first instance, around the outer periphery of the
ordinary metal rim of carriage wheels, elongated slots of suitable width, and at
suitable intervals apart, and on the inner periphery of the tyre above described
I form corresponding spuds or projections so that when the said tyre is applied
round the said metal rim, the projections in the former will engage with the slots
in the latter, and lateral or side movement is thereby prevented.
It is understood that the free ends of the said outer tyre are drawn together
and coupled up by means of the ordinary clamping device at present in use.
Secondly, instead of forming the elongated slots above described, I may form a
continuous groove,-concave, V shape, or rectangular in section-round the outer
periphery of the metal rim, and a corresponding projection on the inner periphery
of the said outer tyre, the object always being to cause the said outer tyre to
engage with the said ordinary metal rim in a manner whereby lateral movement is
prevented, while provision is made for circumferential travel to a certain extent as
may be required in tightening the said outer tyre.
For the purpose of neutralising the frictional contact between the applied tyre
and the ordinary metal rim, a layer of india-rubber, cloth, or other suitable material
may be introduced between the two surfaces.
Dated the 30th day of November 1894.
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Pneumatic Tyres for Carriages and
other Vehicles.
I, JOSEPH BOYD, of 90 Upper Georges Street, Kingstown, County Dublin,
Ireland, Medical Doctor, 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 a new or improved method of applying and
ID Q71

page_text: securing pneumatic tyres to the wheels of carriages and other vehicles in a simple,
expeditious, and efficient manner.
In carrying out my invention I propose to deal with the tyre composed of an
air tube enclosed within an outer covering, and secured within the flanges of a
specially prepared rim by wires threaded longitudinally along the edges of the
covering, or by any other suitable means.
The application and securing of the tyre as thus prepared to the ordinary wheels
of carriages constitutes the substance of my invention.
To this end I form in the first instance around the outer periphery of the ordinary
metal rim of carriage wheels, elongated slots of suitable width, and at suitable
intervals apart, and on the inner periphery of the tyre above described, I form
corresponding spuds or projections so that when the said tyre is applied round the
said metal rim, the projections in the former will engage with the slots in the latter,
and thus prevent lateral or side movement.
The accompanying drawings will enable the nature and construction of my said
invention to be more readily understood.
Fig. 1, is an elevation of an ordinary carriage wheel shewing the application
of the pneumatic tyre according to my invention; and Fig. 2, is a segment of the
wheel shewing the method whereby the ends of the pneumatic tyre are secured.
A, is the wooden felloe; B, the metal rim which so far constitute the ordinary
carriage wheel.
C, is the grooved or channel rim which carries the air tube D, and the application
of which to the ordinary wheel constitutes the essential feature of my invention.
E, are the spuds or projections which engage in corresponding slots formed in the
metal rim B.
In the operation of securing the grooved or channel rim C, to the wheel rim B,
the catch spud E¹ is first inserted in the slot 1, so that the shoulder 2, engages the
cavity 3. The other end of the rim is then drawn tightly round the circumference
of the wheel, and the feathered key bolt F, pressed into the aperture F¹ and
secured by winged nut H.--the head of said bolt is countersunk so as to be flush
with the bed of the channel in rim C. Meanwhile the spuds E, fall into position
in the corresponding slots formed in the wheel rim B, the slots being somewhat
longer than the spuds so as to allow for a little longitudinal movement.
Having thus secured the channel rim C to the wheel rim B, the pneumatic tube
is sprung into position in the usual manner, whereupon the wheel is complete.
For the purpose of further tightening the rim C, on the rim B, a lever hole K,
is provided which may be formed round any part of the wheel.
L, is an inflating valve of the ordinary type which penetrates the wooden
felloe A, and is operated in the usual manner.
Instead of the spuds E, and corresponding elongated slots above described,
I may form a continuous groove-either concave, V shape, or rectangular in section
round the outer periphery of the wheel rim B, and a corresponding continuous
projection on the inner periphery of the channel rim C, the free ends being secured
as in the first instance, it being understood that the object in both cases is to cause
the rim C to engage with rim B in a manner whereby lateral movement is
prevented, while ample provision is provided for circumferential travel to a certain
extent as may be found necessary in practice.
In order to neutralize frictional contact between the channel rim C and the
be
may
wheel rim B, a layer of india-rubber, cloth, or other suitable material
inserted between the two surfaces should it be found expedient to do so.
From the above description it will be at once perceived that according to my
invention ordinary carriage wheels can readily be converted into pneumatic tyred
wheels, it being necessary only to form the required slots as explained, in the
wheel rim, and in the event of the tyre being punctured or otherwise injured
it can readily be removed and the wheel left available for use in its original
condition,

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 would have it understood
that what I claim is:-
First. In the construction of wheels for carriages and other vehicles, the method
whereby the pneumatic tyre is secured to the ordinary metal rim in the manner
substantially as herein described.
Second. In pneumatic tyres for carriage wheels and other vehicles, the use and
application of the channel rim C (with its accompanying pneumatic tube D) in
combination with the spuds E and E', and corresponding slots, in the ordinary
metal rim B, substantially as herein specified.
Third. In pneumatic wheels for carriages and other vehicles, the combination
formed by the ordinary wheel-A and B-and the pneumatic tyre-C and D-
constructed, and arranged in the manner herein specified and set forth.
Dated this 30th day of August 1895.
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.