Improvements in the Rims of Wheels.
Year: 1893

page_text: Date of Application, 14th Sept., 1893-Accepted, 28th Oct., 1893
COMPLETE DIEUITION
Improvements in the Rims of Wheels.
I, EDWARD WARWICK, of Sheffield Works, Alma Street, Aston, in the County
f Warwick, do hereby declare the nature of this invention and in what manner
he same is to be performed, to be particularly described and ascertained in and by
he following statement :-
This invention consists in the novel method of constructing wheel rims hereinafter
lescribed under four modifications.
The nature, characteristic features and scope of my invention will be more fully
understood from the following description taken in connection with the accompanying
drawings.
Figure 1 represents a transverse section of first modification.
Figure 2 represents a transverse section of second modification.
Figure 3 represents the corrugated tyre shell of first modification.
Figure 4 represents the outer shell of first modification shewn at Figure 1.
Figure 5 represents an enlarged broken off portion similar to first modification.
Figure 6 represents a transverse section of third modification.
Figure 7 represents a transverse section of fourth modification.
Figure 8 represents the corrugated tyre shell of third modification.
Figure 9 represents the outer shell of third modification.
Figure 10 represents an enlarged broken off portion of third modification.
Figure 11 represents a longitudinal section of fourth modification of rim as shewn
at Figure 7.
Figure 12 represents a plan of Figure 11 with the loose strip k removed.
Figure 13 represents a plan similar to Figure 12, but with the loose strip k in
position.
Figure 14 represents an enlarged broken off portion of rim section, Figure 11.
In constructing the first modification of my invention I provide the outer shell
as shewn at Figure 4 and turn over the edges as shewn at a; I next insert within
the cavities so formed a wire or rod as shewn at Figure 1; I next provide the
tyre-shell as shewn at Figure 3 and turn over the edges in such a manner as to
produce cavities of dimensions suitable to pass easily over the wired edges a of
outer shell; I next place the tyre shell within the outer shell and compress the
edges c of tyre shell onto the edges a of outer case and so consolidate the two
parts together, forming a hollow rim of the transverse section clearly shewn at
Figure 1.
By a second modification of my invention 1 provide an outer shell as shewn
at Fig. 2 and a tyre shell of the novel transverse section shewn at e Fig. 2, the
combined shells being made out of one sheet of metal as clearly shewn at Figure 2,
the edges of the tyre shell are turned over as shewn at c¹ Fig. 2 embracing rods
or wires b.
By a third modification of my invention I provide an outer shell as shewn
at d Fig. 6 and as shewn in the enlarged cut off section Figure 10 and bend the
edges of such shell d' so as to form gutters projecting inwards as shewn at Figures 6,
9 and 10; I next provide the tyre shell as shewn at Figure 8 with the rod grooves
formed inwards as shewn at g Figure 8. I then place the wired tyre shell within
the outer shell d' as shewn at Figure 6 and consolidate the two shells together by
compressing the guttered edges f of outer shell over the wired edges of tyre
rim g.
By a fourth modification of my invention I provide the improved tyre shell the

page_text: external surface of which is shewn at h Fig. 7, and which is also shewn in sectional
elevation and plan at Figures 11 to 14 this improved tyre shell is formed as shewn
at j and j; I next provide a strip of inetal k and place it loosely in the recessed
part of tyre shell.
In utilizing this fourth modification of my invention in the make up of wheel
rims, I proceed in the following manner :-From long strips or lengths of rim
formed of the transverse section shewn at Fig. 7, a piece would be cut of suitable
length to make a wheel rim, such length would be formed into a round hoop and at
the juncture of the two meeting ends of hoop, the ends of the loose strip k would
be turned inwards as shewn at Figures 11, 13, and 14 and the ends of the hoop
closed over the ends of the strip k; such strip k forming a thickened portion within
the rim, suitable to receive the heads of spokes.
The wire or rod is clearly shewn at the enlarged section Figure 5 as partly
embraced by the folded edge of outer shell d, the wire or rod is also clearly
shewn at the enlarged section Figure 10 as completely embraced by the folded edge
of tyre-shell.
It will be readily understood that the first position of the turned over edges
and m Figure 5 would be that shewn in dotted lines at n and o and that the edges
and m would finally be closed over as shewn at p Figure 10.
My improved rims would be further secured together by introducing a film of
solder or brazing material at the junctures 9 of the rims shewn at Figures 1, 2,
and 7, or at the junctures of the rims shewn at Figures 6 and 10.
The illustrated rim section marked e Fig. 2 shews a new method of making rims
for wheels, so likewise does the illustrated section Fig. 7 and such novel shaped
rims form parts of my invention now described and claimed, but the shape and
configuration of the lower portions d and d' of the first and third modifications are
not new; the new parts are the upper edges as described and illustrated, and I can
where desired utilize any convenient section of outer shell and inner-tyre shell in
the make up of my improved rims by providing the wired edge connections
illustrated and described.
I can also in some cases reverse the arrangement of rim connection shewn at
Figures 1 and 4 turning the wired edges of outer shell inwards as indicated in
dotted lines at Figure 4 and also turning the edges of tyre shell inwards over the
wired edges of outer shell.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1st. The making of a wheel rim, by the combination of an outer rim-shell with
an inner tyre shell, the edges of the outer rim-shell being folded over a wire or rod
and the edges of the inner tyre shell afterwards folded over the wired edges of the
outer shell as illustrated and described in reference to Figures 1, 3, 4 and 5.
2nd. The making of a wheel rim by the combination of an inner tyre-shell with
an outer rim-shell, the edges of the inner tyre-shell being folded over a wire or
rod, and the edges of the outer rim-shell afterwards folded over the wired edges
of the inner tyre-shell, as illustrated and described in reference to Figures 6, 8, 9,
and 10.
3rd. In the construction of a hollow wheel rim the formation of the hollow
pocket part and the tyre rim part out of one piece of metal or material as illustrated
and described in reference to Figure 2.
4th. In the construction of a wheel rim, the combination of a chambered tyre-
shell with a metal tape or continuous plate, the edges of the chambered tyre-shell
being wired, the continuous tape or plate forming a thickened part within the tyre
shell to receive the heads of wheel spokes as illustrated and described in relation
to Figures 7, 11, 12, 13 and 14.
5th. The making of a hollow wheel rim by the combination and amalgamation

page_text: of the free guttered edges of one portion over the wired
odde HIROD
other portion, the parts so secured together being afterwards brazed or soldered to
and forming a consolidated juncture.
the
of the free guttered edges of one portion over
other portion, the parts so secured together being afterwards brazed or soldered to
form and forming a consolidated juncture.
11. 19th day of September 1830.
EDWARD WARWICK.
EDWARD WARWICK.