Improvements in the Manufacture of Vehicle Wheels.
Year: 1896

page_text: Date of Application, 20th Mar., 1896-Accepted, 25th Apr., 1896
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Vehicle Wheels.
We FREDERICK WARWICK and EDWARD WARWICK of Cobden Buildings
Corporation Street Birmingham in the County of Warwick Mechanical Engineers
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 consists in the production of a wheel specially suitable for use on
the axles of baby-cabs generally known as perambulators and also suitable for
use in larger and stronger sizes on the axles of street vehicles of all kinds.
We will now proceed to describe with reference to the accompanying drawings
the manner in which our improved wheel is constructed and used.
Figure 1 represents an elevation of the improved wheel.
Figure 2 represents a section of one Figure 1 on the line A. B.
Figure 3 represents a section of one half of the improved whee
Figure 4 represents a broken off centre part of wheel shewing D-shaped hole to
receive hub centre-piece.
Figure 5 represents section of one form of wheel arm.
Figure 6 represents section of the wheel arm as shewn at Figure 1.
Figure 7 represents a rim embracing a round sectioned rubber tyre.
Figure 8 represents the section of rim formed so as to produce a flat metal tyre.
Figure 9 represents a section of rim embracing a special section of rubber tyre.
Figure 10 represents a section of hub-centre-piece.
Figure 11 represents a section of a double tube hub centre-piece.
Figure 12 represents a section of rim on line C. D.
In carrying out our invention in relation to the wheels of baby-cabs or peram-
bulators, we provide a sheet of material which will by preference be obtainable at
a low price, the material may be sheet tin, sheet iron, sheet brass, or any other
sheet metal, or in lieu of sheet metal we in some cases prefer to use papier-mache,
wood-pulp, sheets of rolled wood-pulp, sheets of rolled cotton-pulp, or sheets of
any material suitable for use in the manner hereunder described.
From the sheet of material we punch out a circular wheel by the removal of the
required number of angular pieces so as to leave any desired number of arms
together with a central flat boss-part of suitable diameter, and a peripheral con-
tinuous part suitable to form a rim, the wheel so punched out is next strengthened
by forming the arms of the section shewn at a Figure 1, and as shewn in enlarged
view at Figure 6, the blank is next pierced with the rivet holes 6 and is after-
wards shaped into the concave form as shewn in section at Figure 3, and as shewn
in elevation at c Figure 1, a central hole d is punched through the flat disc, the
disc so prepared viewed horizontally or set on its edge and viewed vertically
would present the appearance shewn at Figure 1.
By providing two of the discs as hereinbefore described we are enabled to form
with such two thin pierced discs, a strong, strutted wheel; each disc as shewn at
Figure 1 is pressed into the concave shape shewn at Figure 3, the two discs are
bext placed together in the manner shewn at Figure 2 and secured together by
means of rivets e passing through the rivet-holes b of both halves; previous to
placing the two halves of wheel together we provide a central hub-piece as shewn
n enlarged view at Figure 10 and as shewn at f Figure 2, the hub-piece is
provided with distance flanges g beyond which projects the riveted part h; the hub-
piece when placed in the position shewn at Figure 2 is secured to the concave
alves by rivetting the projecting end parts over the outer part of wheel boss as

page_text: shewn at j, the projecting ends so rivetted form one convenient method of
securing the two halves together against the collar g, and such a simple method is
applicable in the manner described nevertheless we in some cases prefer to screw
or otherwise fasten a flange equivalent to the rivetj on to or into the hub-piece f,
the screwed end k of hub-piece is provided to receive the ornamental cap 7 or to
receive any other suitable cover or cap.
Our complete wheel as hereinbefore described can be produced at a low cost,
will be light in weight, and will as a consequence of the utilization of the strutted
arms constitute a strong and rigid baby-cab-wheel.
The rim and arms of our improved dise-wheel being produced out of one piece
of metal or material it will be apparent that the rim would form a true circle
with the centre of boss without the necessity of setting true by means of adjusting
nuts as used on the spokes of spider-wheel.
Instead of producing our central hub-piece as a malleable casting or as a
stamping or as a forging, to the section shewn at Figure 10, we in some cases
produce the hub-piece out of two short pieces of tube as shewn at Figure 11, and
it will be readily understood that the inside piece may be either an easy fit within
the outside piece, or the outside piece may be secured to the inside piece, in either
of such cases the ends m of the outside piece forms the strut Hanges equivalent to
the flanges g shewn at Figure 2.
The D shaped hole n is punched in the flat hub part of wheel-discs so that the
ends o of hub centre-piece can be also made D-shaped to prevent it turning within
the side discs.
In the production of wheels suitable for use on the axles of road-vehicles blanks
would be produced, shaped and secured together as herein before described in
relation to Figures 2 and 3, but such blanks would be produced from thicker and
heavier substance in accordance with the size of the wheel to be made, and in
accordance with the weight the wheel would be intended to carry.
Having described the method of producing the discs we would point out that
we do not confine ourselves to the production of the particular shaped rim as shewn
at Figure 3, and as shewn at e Figures 2 and 12 as we can elect to produce any
desired shape of rim beyond the row of rivets e; for instance we can form the rim
in the manner shewn at Figure 7 to receive a rubber tyre, the transverse section
of which would be round; or we can produce a flat metal rim by forming the two
halves in the manner shewn connected together at Figure 8, or we can produce a
flat rim very similar to the rim shewn at Figure 8, suitable to grip a block section
rubber tyre as clearly shewn at Figure 9.
We do not claim the sections of rubber tyre shewn at Figures 7 and 9 as new
sections the novelty connected with them consisting of their utilization within the
rims of our new system of vehicle wheel.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
The making of vehicle wheels by the combination of two half-wheels each of
such halves being produced by piercing out from a flat sheet of metal or other
suitable material, such pierced out halves being afterwards dished into a concave
shape, the dished halves being connected together at the boss part by means of a
strut hub-piece, and the two halves being also connected together at the rim-part
by means of rivets; as illustrated and described with reference to Figures 1. 2. 3.
4. 10 and 11.
Dated this 12th day of March 1806
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Agent for the Applicants.