IMPROVEMENTS IN FASTENING THE TYRES OF RAILWAY WHEELS
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by Richard Holland at the Office
of the Commissioners of Patents, with his Petition, on the 3rd
February 1875.
I, RICHARD HOLLAND, of Wednesbury, in the County of Stafford,
Foreman of Wheel Works, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN FASTENING THE TYRES OF RAILWAY WHEELS,"
to be as follows:-
"
My Invention consists of the improvements herein-after described in
fastening the tyres of railway wheels, whereby the piercing of the tyre
for the reception of the fastening pins which are ordinarily used for
fastening the tyre to the rim of the wheel is superseded, and the tyre is
fastened to the rim in a safer and stronger manner than by the ordinary
method.
I make on the exterior of the periphery of the rim of the wheel and
on the outer edge thereof a series of equidistant projecting pieces, the
said projecting pieces being equal in number to the spokes of the wheel,
each projecting piece being situated in the finished wheel in a line with'
the middle of each spoke, The said projecting pieces on the rim may

page_text: either have a hook form or a dovetail form, but I do not limit myself to
any particular sectional figure of the said projecting pieces. In the face
of the inner or opposite edge of the rim an annular groove is made.
I construct the tyre to be fastened to the rim of the wheel made as
described in the following manner :-In the inner side of the tyre and
near the outer edge thereof an annular groove or seat is made of a size
and shape proper to receive the projecting pieces described on the outer
edge of the periphery of the rim of the wheel. At equidistant points in
the tyre slots or cut away parts are made, which slots open into the
annular groove or seat in the said tyre. The inner edge of the tyre is
furnished with an annular flange which takes into the annular groove
described in the inner edge of the face of the rim of the wheel.
In fastening the tyre to the rim of the wheel the tyre is heated, and
the projecting pieces on the rim being brought opposite the cut away
parts or slots in the heated, tyre; the said projecting pieces are lowered
into the said slots, the annular groove at the inner face of the rim being
at the same time engaged with the projecting flange on the inner face of
the tyre. By a twisting motion or a motion through part of a circle the
several projecting pieces on the rim are introduced into the annular
groove or seat in the tyre, so as to bring each of the said projecting
pieces midway between two adjacent slots or cut away parts in the tyre,
and the arms of the spokes of the wheel opposite the said slots or cut
away parts. By the contracting or shrinking of the heated tyre upon.
the several projecting picces of the rim the said tyre is securely fastened
to the said rim. The movement of the several projecting pieces on the
rim in their seats in the tyre is prevented by clinching or compressing
the metal of the tyre upon the ends of the said projecting pieces by
means of ordinary tools.
:
.. By my Invention the wheel is composed of two parts only, namely,
the wheel proper, consisting of the boss, spokes, and rim in one piece,
and the tyre in another piece; the rim and tyre being fastened together
as before described without the use of independent fastenings, the
fastening parts constituting portions of the rim and tyre.