Improvements in Built-up Wheels such as Flywheels for Motors.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Built-up Wheels such as Flywheels for Motors.
I, WILLIAM JOHN CROSSLEY, of Crossley Brothers Limited, of Openshaw,
Manchester, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide means for more securely uniting the
sections of wheels such as the flywheel of a motor, more particularly the cast-
iron sections forming the rim.
In carrying out my invention I fit a plate, (or plates), over the joint of two
sections having a joggle at each end engaging with suitable recesses in the
castings. The joggles have a slight taper on them and may be a little undercut
or dovetailed so that when carefully fitted they may be driven on tight, thus
securely and rigidly binding the two sections together. The ends of the plates
may also be carefully fitted to undercut surfaces in the castings to prevent them
springing outwards at these edges, thus materially assisting in keeping the
joint solid and substantial, also enabling the plate to take the strain in a more
direct manner. Bolts may be used in place of these undercut ends if desired.
A plate (or plates) may be fitted right across the outer face of the wheel, at
each joint, and the surface of the plates and the rest of the rim subsequently
turned up so as to present a smooth continuous outer surface.
The depth of metal in the rim may be increased at the joints so as to maintain
the desired strength of the cast-iron and inside the rim the sections may be
bound together by similar plates or bolts may be used in the ordinary manner.
Plates might also be used on the edges of the rim.
1
1000
Improvements in Built-up Wheels such as Flywheels for Motors.
I, WILLIAM JOHN CROSSLEY, of Crossley Brothers, Limited, Openshaw, Man-
chester, Engineer, 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:-
The object of this invention is to provide means for more securely uniting the
sections of wheels, such as the flywheel of a motor, more particularly the cast-
iron sections forming the rim.
To enable me to more clearly explain this invention I append a sheet of
drawings in which Fig. shows in the elevation a joint in the rim constructed

page_text: in accordance with this invention, Fig. 2 is a plan of the same, and Fig. 3
shows a complete wheel in halves drawn to a smaller scale.
In carrying out my invention I fit a plate A (or plates) over the joint B of any
two sections of the rim. The plate A has joggles C on each end fitted into suitable
recesses in the castings and engaging with suitably formed projections 1) in these
recesses. The joggles C have a slight taper on them fitted to similar slight
tapers on the projections 1), so that the plate A may be driven on endwise across
the width of the wheel, thus drawing the two parts securely together. The
face of the joggles C may be a little under-cut or dovetailed as shown in Fig. 1,
thus tending to keep the plate firmly upon the projections D. The ends of the
plate A may also be carefully fitted to under-cut surfaces in the castings as shown
at EE thus preventing them springing outwards with the severe tensile strain put
upon the plate A and materially assisting in keeping the joint solid and sub-
stantial. Bolts may be used in place of these under-cut ends, if desired.
The plate A (either in one piece or more) may be fitted right across the
outer face of the wheel as shown in Figure 2 and each joint in the rim may be
thus held together. The wheel may subsequently be turned over the surface
of the rim and plates thus presenting a smooth continuous outer surface.
To provide for the full strength of the rim the depth of metal at each joint
may be increased, as shown in Fig. 1, and internally a bolt or bolts F may be
fitted to suitable internal flanges, also as shown in Figs. 1 & 2.
Instead of
the bolts F, other joggle plates may be used internally in the same manner as
those shown externally. Plates might also be used on the edges of the rim
should it be of such a form as to make these desirable.
The complete wheel shown in Fig. 3 is made in two halves. It will, however,
be readily understood that this mode of joining sections of a wheel rim could be
applied to any number of joints, either having the arms of the wheel attached
to the sections or not, as may be desired.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. The joining together of the sections of built up flywheels for motors, or any
other similar wheel, by means of a suitable plate (or plates), having slightly
tapering joggles driven on to properly fitting portions of the sections of the
wheel, so as to securely bind them together, as described and illustrated.
2. The arrangement and construction of plates for joining together the different
sections of built up wheels, as described and claimed in Claim 1, in such a manner
that the ends are held down by under-cut projections or bolts so that the strain
of the tension on the plates does not cause them to spring outwards, as described
and illustrated.
3. The general arrangement and construction of the joints of built up flywheels
or other similar wheels, as described and illustrated.