Improvements in the Construction of Wheels Applicable to Vehicles for Use on Railways, Tramways, Common Roads and the like Pu the Form of Construction being lika.
Year: 1884

page_text: Improvements in the Construction of Wheels Applicable to
Vehicles for Use on Railways, Tramways, Common Roads,
and the like Pu
the Form of Construction being lika..
PROVISIONAL SPECIFICATION.
We JOSEPH TRIPPETT Manager THOMAS SEARLS and HENRY SEARLS Steel
Manufacturers all of Cannon Steel Works Carlisle Street Sheffield Yorkshire
do hereby declare the nature of our said Invention for IMPROVEMENTS IN THE
CONSTRUCTION OF WHEELS FOR RAILWAY AND TRAMWAY VEHICLES to be as
follows:-
The improved wheel consists of a combination of a cast steel or cast metal boss
with lugs to which are bolted two circular plates of iron or steel-in place of
spokes and a cast steel or cast iron tyre with lugs to which the said circular side
plates are bolted, the parts of the wheel being interchangeable and renewable when
worn or broken.
The boss and tyre are or can be recessed to receive the circular plates and the
said plates are or can be dished to make them elastic.

page_text: Improvements in the Construction of Wheels, Applicable. to
Vehicles for Use on Railways, Tramways, Common Roads,
and the like Purposes, the Form of Construction being like-
We JOSEPH TRIPPETT, Manager, THOMAS SEARLS and HENRY SEARLS, Steel
Manufacturers, all of Cannon Steel Works, Carlisle Street, Sheffield, Yorkshire; do
hereby declare the nature of our said Invention, for "IMPROVEMENTS IN THE
CONSTRUCTION OF WHEELS FOR RAILWAY AND TRAMWAY VEHICLES and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
:
"
The improved wheel consists of a combination of a cast steel or cast metal boss,
with luge, to which are bolted two circular plates of iron or steel in place of spokes,
and a cast steel or cast iron tyre with lugs, to which the said circular side plates
are bolted, the parts of the wheel being interchangeable and renewable when worn
or broken.
The boss and tyre are or can be recessed to receive the circular plates, and the
said plates are or can be dished to make them elastic..
The latter method would be the one we should generally employ in the construction
of our improved wheels and as a further development of our invention; the recess in
the tyre, to receive the circular plates, may be formed by casting the tyre on to the
circular plates, the tyre so cast inay be formed with plain lips or with lugs or pro-
jections on either or both sides, such lips or projections may be made wide enough
to admit of bolts, rivets, screws or other equivalent fastenings being passed through
on either side, such bolts or other fastenings also passing through the plates to
retain them in position if required to prevent, the said plates or the tyre slipping
round each other, or, the plates, either or both, may be notched so that when the
steel forming the tyre is run round the plates it would enter and fill such notches
and thereby prevent the slipping last referred to, In this case the lips may be
made narrower than when bolts or other fastenings are used.
The nature of our invention will be better understood on reference to the accom-
panying sheet of drawings in which,
Fig. 1, is a front elevation of a Railway or Tram wheel and tyre, one half of
which represents the boss formed with lugs, and the tyre with a narrow lip and
lugs, the other half representing both the boss and the tyre without lugs, the tyre
having a plain lip.
Fig. 2, is an end elevation of the same Wheel and tyre.
Fig. 3, is a sectional elevation of the same.
Fig. 4, Represents part of an end elevation of a plain wheel without flange,
applicable to vehicles for use on common roads and the like purposes, and
Fig. 5, is part of the sectional elevation of the same.

page_text: WICK Quy
holes either cast, drilled or otherwise formed therein.
B is the cast metal tyre.
O is a circular flat plate and
D is a circular dished plate.
E are the bolts, rivets, screws or other equivalent fastenings in the boss and
F are similar fastenings for the tyre if required.
The manner in which the wheel would be constructed is as follows:-
The cast metal boss A, may be first bored and slotted or otherwise formed, to fit
the axle, or, in case of a road vehicle, to receive the bush for the arm of the Axle
and the boss would also be recessed, to form a receptacle for the oil, it may then be
prepared to receive the plates C, and D, for which purpose it may be turned faced
and drilled, the plates C, and D, are next prepared and may be bored out to fit the
boss and they may likewise be turned true on the edge for the reception of the tyre,
both plates may have their peripheries slightly bent or flanged, and the plate
marked D would be dished or corrugated. The holes for the bolts may likewise be
drilled, punched or otherwise formed to correspond to the holes in the boss, and
holes or notches may be formed as previously described for securing the tyre to the
plates, holes or openings for lightening the plates between the boss and the tyre
may in some cases be employed, or, a hole or holes may be formed in the plate or
plates, to be used for filling the space or spaces between the boss and the plates
with suitable material or composition for stiffening the wheel or for preventing or
deadening any noise which may be caused through the ringing or vibration of the
plates or other parts of the wheel.
When the boss and the plates have been prepared as herein described, they are
fitted together and the bolts, rivets, screws or other equivalent fastenings, are
passed through the boss and the plates and firmly secured, thus forming what will
be hereinafter called the wheel centre. The peripheries of the plates are then
heated to prevent the steel being chilled when cast on or round the same; having
been so prepared and heated the wheel centre is then placed in a mould or chill,
and the molten steel or other metal, is then run into the same, thus forming the
tyre as shewn in the accompanying drawings.
After the wheel has been taken out of the mould or chill, the tyre may be
annealed in the ordinary way, during which process, the plates forming the discs
or centre of the wheel, and the boss, may be coated, covered or embedded in a fire
resisting material, such as fire clay or gannister.
When the tyre of the wheel constructed as herein described, has become worn or
otherwise unfit for use, it may be broken off the wheel centre and a new tyre cast
thereon, in the same manner as already described. The wheel centre and boss thus
serving for many tyres in succession, or when a tyre has become worn, the flange
may be turned off and an ordinary rolled weldless tyre may be shrunk on.
Wheels made on this principle, may be applied to vehicles on common roads or
for gun carriages or the like purposes. Pullies drums and riggers may likewise be
constructed on this principle. In all such cases the flanges or rims may be varied
in section as required.
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.) Constructing wheels applicable to vehicles for use on Railways, Tramways,
common roads and the like purposes, each such wheel consisting of a combination of
cast metal boss with or without lugs, to which is bolted two circular metallic plates
or discs, one of which may be flat, and one of which may be dished as a substitute for

page_text: spokes; and a tyre of cast steel or other metal, with or without lugs to which the
said circular metallic plates or discs may be secured by casting the tyre on to the
said plates or discs. The tyre so cast having a continuous projection or lip run
or cast round on either side of the plates or dises, so forming a recess for the peri-
pheries of the plates, with or without any other means of fastening or securing the
same, substantially as herein described and set forth.
(2) Constructing Pulleys, drums and riggers in the same manner as herein
described for a wheel, substituting in lieu of the tyre a cast metallic rim or flange
of the required section, substantially as herein described and set forth.
R. HEBER
RADFORD,
Agent for the Applicants.