Tricycles, and other Velocipedes.
Year: 1884

page_text: Tricycles, and other Velocipedes.
I THOMAS WARWICK of Alma Street Aston near Birmingham in the County of
Warwick Manufacturer do hereby declare the nature of the said Invention for
IMPROVEMENTS IN THE METALLIC RIMS OF THE WHEELS OF BICYCLES TRICYCLES
33 to be as follows :—
AND OTHER VELOCIPEDES
In the specification of Letters Patent granted to me dated the 27th of September
1882 No 4597 I described represented and claimed among other things a hollow
rim for the wheels of bicycles tricycles and other velocipedes mado from sheet iron
or steel the edges of the metal overlapping at their junction thus giving great
strength at the part where the spokes were inserted in the rim.
My present invention consists of improvements in the hollow rim described
represented and claimed in the said specification and consists in making the said
hollow rims in the following ways.
I make the said hollow rims in the ways described in the said specification
excepting that instead of making the edges of the sheet metal overlap and thereby
bend the edges or
doubling its thickness at the junction of the two edges
marginal portions of the sheet metal nearly at right angles to the curved strip 80
that the portions of sheet metal constituting the edges or marginal parts are
brought parallel to each other and in the plane of the wheel. These edges are
secured together by brazing and the spokes are fitted in holes made in the said
brazed edges which edges have double the thickness of the other parts of the rim
Or instead of connecting the parallel
and afford a firm support for the spokes.
edges together by brazing they may be connected by clips screwed or rivetted on
the said edges or the said edges may be connected together only by the spokes
passing through them. I prefer however to connect the edges of the rim indepen-
dently of the spokes. Where the clips described are employed the holes in them
may be threaded and the screwed ends of the spokes screwed therein.
Rims constructed according to my invention do not require the india rubber
ring or tyre to be removed in order to remove an injured spoke and replace it by a
new one. As there are no holes in the hollow rim access of wet and dirt is
prevented and the double thickness of metal to which the spokes are attached
gives great strength to the rim combined with great lightness.
Naambar 186
W. T. WHITEMAN,
Agent for the Applicant.

page_text: .
Improvements in the Metallic Rims of the Wheels of Bicycles,
Tricycles, and other Velocipedes.
.I THOMAS WARWICK of Alma Street, Aston near Birmingham in the County of
Warwick, Manufacturer do hereby declare the nature of my Invention for
"IMPROVEMENTS IN THE METALLIC RIMS OF THE WHEELS OF BICYCLES TRICYCLES
AND OTHER VELOCIPEDES" and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
In the specification of Letters Patent granted to me dated the 27th of September
1882, No 4597, I described represented and claimed among other things a hollow
rim for the wheels of bicycles, tricycles and other velocipedes made from sheet iron
or steel the edges of the metal overlapping at their junction, thus giving great
strength at the part where the spokes were inserted in the rim.
My present invention consists of improvements in the hollow rim described
represented and claimed in the said specification and consists in making the said
hollow rims in the following ways.
I make the said hollow rims in the ways described in the said specification
excepting that instead of making the edges of the sheet metal overlap and thereby
doubling its thickness at the junction of the two edges, I bend the edges or
marginal portions of the sheet metal nearly at right angles to the curved strip so
that the portions of sheet metal constituting the edges or marginal parts are
brought parallel to each other and in the plane of the wheel. These edges are
secured together by brazing or rivetting and the spokes are fitted in holes made in
the said brazed edges, which edges have double the thickness of the other parts of
the rim and afford a firm support for the spokes. Or instead of connecting the
parallel edges together by brazing or rivetting they may be connected by clips
screwed or rivetted on the said edges; or the said edges may be connected together
only by the spokes passing through them. I prefer however to connect the edges
of the rim independently of the spokes. Where the clips described are employed
the holes in them may be threaded and the screwed ends of the spokes screwed
therein.
one.
Rims constructed according to my invention do not require the india rubber ring
or tyre to be removed in order to remove an injured spoke and replace it by a new
As there are no holes in the hollow rim, access of wet and dirt is provented
and the double thickness of metal to which the spokes are attached gives great
strength to the rim combined with great lightness.
Figure 1 of the accompanying Drawings represents in side elevation and cross
section portions of hollow metallic rims for the wheels of bicycles tricycles and
other velocipedes made according to my invention. In the said Figures 1 and 2
the hollow metallic rim is marked a and the parallel edges or marginal parts of
the rim at right angles to the body of the rim are marked b, b the said parallel
edges b, b constituting a double thickness of metal at the part where the spokes
are connected to the rim as well as strengthening the rim. The double thickness
of metal or the parallel edges b, b of the rim are secured together by brazing as
illustrated in Figure 1; or by rivetting at c cas illustrated in Figure 2; or the

page_text: said parallel edges b, b of the rim may be secured together both by brazing and
rivetting, but I do not limit myself to any particular method of connecting the
double or parallel edges b, b of the rim together.
In making the hollow metallic rims Figures 2 and 3, I proceed as follows:-
I take a strip of sheet iron or steel of the breadth represented in Figure 3 and of
the length of the rim to be made. By a drawing operation the strip Figure 3 is
first brought into the nearly tubular form represented in Figure 4 and afterwards
into the form represented in Figure 5. By the said drawing process, the edges or
marginal parts b, b are bent nearly at right angles to the curved strip a from which
the rim proper is to be made and by a further drawing process the shape of the
partly made rim Figure 5 is perfected and the parallel edges b, b brought close
together as represented in Figures 1 and 2, so as to give a double thickness of
metal at the edge or junction of the rim. For the purpose of illustration I have
shown two methods of connecting the spokes to the double thickness of metal b, b
at the under part of the rim but I wish it to be understood that I do not limit
myself to these methods of connecting the spokes to the double part of the rim.
In the side elevation Figure 6 and cross section Figure 7, holes are made in
the double thickness of metal b, b and the cranked or bent ends of the metallic
spokes d, d are passed through the said holes and the said ends rivetted in their
places as best seen in Figure 7.
In the side elevation Figure 8 and cross section Figure 9 the fork like clips e, e
are rivetted to the double or parallel edges b, b of the rim and the metallic
spokes d, d are secured to the clips e, e by means of the angle pieces f, ƒ on the
ends of the spokes d, d embracing the bottoms of the clips e, e in the manner
represented in Figure 9.
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
Constructing the edge or junction of the hollow metallic rims of the wheels of
bicycles, tricycles and other velocipedes, with a double thickness of metal by
bending the edges or marginal portions of the sheet metal from which the rim is
made at right angles to the curved strip and bringing the said bent edges parallel
to each other and in the plane of the wheel, the said double thickness of metal or
parallel edges of the rim being connected together by brazing or rivetting or by
brazing and rivetting or otherwise substantially as herein before described and
illustrated in the accompanying Drawings.
Deted this Fifth day of August 1885.