Improvements in Pneumatic Tyred Wheels.
Year: 1895

page_text: Date of Application, 21st Nov., 1895
Complete Specification Left, 6th Aug., 1896-Accepted, 19th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyred Wheels.
We, SAMUEL JOHN BARTLETT of 73 Bath Avenue Sandymount in the
County of Dublin, Engineer, and THE GRAPPLER PNEUMATIC TYRE & CYCLE
COMPANY LIMITED of 27 and 28 Clare Street Dublin in the county aforesaid, do
hereby declare the nature of this invention to be as follows:-
This invention relates to an improved method of attaching the spokes to the
wheel rims in pneumatic tyred wheels.
The spokes which are butted into the hub or nave in the usual manner have
their other or outer ends butted into ferrules shaped to fit against the inner side
of the wheel rim and to embrace it transversely by means of raised flanges, the
said ferrules being each fixed to the wheel rim by means of a screw threaded into
the solid end of the ferrule.
By this construction the spokes are prevented from twisting or vibrating, and all
cutting away of the rim is avoided.
The wheel rim may be of the type used for the "Grappler" or any other type
of pneumatic tyre.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.
improvements in Pneumatic Tyrea wheels.
We, SAMUEL JOHN BARTLETT of 73, Bath Avenue, Sandymount, in the
County of Dublin, Engineer, and THE GRAPPLER PNEUMATIC TYRE AND
CYCLE COMPANY LIMITED of 27 and 28 Clare Street, Dublin, in the county
aforesaid, 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 relates to an improved method of attaching the spokes to the
wheel rims in pneumatic tyred wheels.
The spokes which are butted into the hub or nave in the usual manner have
their other or outer end butted into ferrules shaped to fit against the inner side of
the wheel rim and to embrace it transversely by means of raised flanges, the said
ferrules being each fixed to the wheel rim by means of a screw threaded into the
solid end of the ferrule.
By this construction the spokes are prevented from twisting or vibrating and all
cutting away of the rim is avoided.
of
The wheel rim may be of the type used for the "Grappler" or any other type
pneumatic tyre.
In the accompanying drawing which illustrates this invention;
Figure 1 is a broken view in transverse section.
[Preext-

page_text: Figure 2 is a broken view in side elevation, and
Figure 3 is a broken view in front elevation-partly in section-showing the
application of the invention to another form of wheel rim.
Throughout the views similar parts are marked with like letters of reference.
The spokes A which may be of wood or other suitable material are butted into
the hub or nave in the usual manner and have their outer ends butted into
ferrules B shaped to fit against the inner side of the wheel rim C and embrace it
transversely by means of raised flanges bb. These ferrules are fixed to the wheel
rim by means of screws such as D headed into the rim and screwed either into
the ends of the spokes A as shown by Figure 1-in which case they pass freely
through holes in the outer ends of the ferrules- -or into the ends of the ferrules
themselves.
The shape of the outer ends of the ferrules and the size and shape of the flanges
thereon will depend upon the type of rim employed. Figure 1 shows a run for the
Grappler" tyre and Figure 3 shows a rim for the "Welch-Dunlop" tyre.
66
In building up new wheels we prefer to use rims having a flat surface on their
inner sides as shown by Figure 1 as it enables the ferrules to be more readily and
securely attached to them.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
(1.) The improvements in pneumatic tyred wheels, substantially as hereinbefore
described and illustrated by the accompanying drawing.
(2.) In a pneumatic tyred wheel, the combination with the rim for carrying the
tyre and with the spokes, of ferrules such as B adapted to receive the outer ends
of the spokes and to be attached to the inner side of the wheel rim, as set forth.
(3.) In a pneumatic tyred wheel, the combination with the hub and spokes, of
ferrules such as B mounted on the ends of the spokes and having raised flanges
such as b, and of a wheel rim having a groove of the required shape to receive
the particular type of pneumatic tyre it is intended to carry, and thickened up on
its inner side to present a flat surface in cross section to receive the ends of the
ferrules as set forth.
Dated this 6th day of August 1896.
ted this 6th day of August 1896.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.