Improvements in and connected with the Wheels and Forks of Cycles.
Year: 1894

page_text: Date of Application, 27th Apr., 1894-Accepted, 2nd June, 1894
COMPLETE SPECIFICATION.
Improvements in and connected with the Wheels and Forks of
Cycles.
We FRED WARWICK and EDWARD WARWICK, both of Sheffield Works,
Alma Street Aston in the County of Warwick Manufacturers of Cycle
Materials 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 improved methods of constructing the rims and
forks of cycles, as hereinafter fully set forth.
We will now proceed to describe in reference to the accompanying drawings
the manner in which the several modifications of our invention are constructed
and used.
Figure 1 represents a transverse section of the first modification of rim, the
whole of the parts being new.
Figure 2 represents a transverse section of the second modification of rim, the
upper half or portion only being new.
Figure 3 represents a transverse section of the third modification of rim, the
whole of the parts being new.
Figure 4 represents au isometrical elevation of fork-plug.
Figure 5 represents an isometrical elevation of (broken off) top end of fork.
Figure 6 represents a flat blank suitable to bend into a fork-plug.
Figure represents an isometrical elevation of top part of fork, with plug
pushed into position within the fork, the dotted lines show the position the plug
would take if partly withdrawn.
Figure 8 represents a completed fork with plug inserted.
cap.
Figure 9 represents a plan of top end of plug, ready to receive
Figure 10 represents the plug-cap ready to fix to the top end of plug.
In constructing the first modification of our invention we provide a flat strip of
metal of any suitable length and width, and pass such strip of metal through
suitable rolls or other tools so as to bend and compress the flat strip into the shape
shewn as commencing at a and terminating at b; we next provide a second flat
strip of metal and pass such strip through suitable rolls or other tools so as to
bend and compress the second flat strip into the bridge piece shewn as commencing
at c and terminating at d.
The bridge piece terminal edges c and d would he placed in position to bear
against the under side of curves e and f, the terminal edges a and b of upper
portion of rim would also touch the under side of the curves or terminal inter-
sections e and f, thus bringing the flat faces g of the bridge piece against the flat
faces provided on the upper portion of rim, the faces of the upper and lower
portions would be consolidated together by soldering, brazing, or other equivalent
means, so as to produce a rigid cellular rim bridged in a novel manner of minimum
weight with maximum rigidity or strength.
In constructing the second modification of our invention, we provide a flat strip
of metal, of any suitable length and width, and pass such strip of metal through
suitable rolls or other tools so as to bend and compress the flat strip into the
shape shewn as commencing at and terminating at; we next provide a second
Hat strip of metal and pass such strip through suitable rolls or other tools so as to
bend and compress the second flat strip into the convex shape shewn at k, this
second strip so shaped and afterwards turned over at the edges is not new in itself,
the upper portions of the second modification are secured together by bending the.

page_text: edges as shewn in dotted lines at hand; over the rim of bottom part as shewn at
and m, the edges o and P of upper half would touch the internal surface of lower
half, the curved over edges and m and the continuous edges or rounded projecting
flanges o and p would be consolidated with the lower portion by means of soldering
or brazing.
In constructing the third modification of our invention we provide a flat strip of
metal of any suitable length and width and pass such strip of metal through
suitable rolls or other tools so as to bend and compress the flat strip into the shape
shewn as commencing at 9 and terminating at r; we next provide a second flat
strip of metal and pass such strip through suitable rolls or other tools so as to
bend and compress the second flat strip into the bridge piece as shewn commencing
at s and terminating at t, the bridge piece terminal edges s and t would be placed
in position to bear against the under side of curves u and v, the terminal edges q
and of upper portion of rim would also touch the under side of the curves or
terminal intersections u and t, the bridge piece would then be consolidated with
the upper portion of the rim by means of soldering, brazing or other equivalent
methods so as to produce a cellular rim, bridged in a novel manner of minimum
weight, and which when made up into a wheel rim would yield to peripheral
pressure in a resilient manner entirely different to that of a rim made from the
section shewn at Figures 1 and 2.
2º
3
The 4th modification of our invention relates to improvements in cycle forks,
such improvements consist in providing a separate capped plug suitable to solder
or otherwise secure within the end of a fork. We construct our plug in the
following manner; we pierce from a sheet of metal a blank of the configuration
shewn at Figure 6, on the upper edge of such blank will be formed the tenons w;
we next provide an oval, flat blank as shewn in plan at Figure 10, such oval blank
being pierced with holes or mortices to receive the tenons w; we fold the plug-
blank into an oval shape; the folded over blank edge forming a rounded corner at y,
the two side edges and a a being left apart to permit of the plug being sprung
into fork ends that vary slightly in internal dimensions; after the blank as shewn
at Figure 6 has been folded into the oval shape shewn at Figure 9, the flat oval
blank or plate as shewn at Figure 10 would be placed in position over plug and
the tenons w passed into the mortices or piercings, the mortices can be parallel,
or they can be slightly tapered outwards as shewn by the double line at Figure 10;
the tennons w can be slightly longer than the thickness of the cap, so that the
protruding parts of the tenons w can be rivetted or compressed to fill the taper of
the mortices; the width of the cap from bb to cc would be equal to, or slightly
larger than the dimensions of fork-end from dd to ee, and the length of the cap
from ff to g g would be equal to or slightly larger than the dimensions of the
fork from hh to jj. The completed plug as shewn at Figure 4 can be slid into end
of fork as shewn at kk Figure 7, where it can be secured to and consolidated with
the fork, by soldering, brazing, or other equivalent means, so that the rigid solid
ended fork could be filed or otherwise formed to make the flange or lip bb-cc-
ff-gg-of cap true and lineable with the outer surface of fork.
A pair of our completed improved plugged forks could be passed into the two
slots of cycle fork crown and consolidated therewith by means of the brazing
or soldering process, or by compressing, or by other suitable and equivalent
mechanical means.
In some cases a pair of forks, that is to say, two pieces similar to Figure 8
would be passed into the crown slots, brazed therein and our novel capped plug
alterwards brazed within the open fork ends; in other cases the fork ends and
capped plug would be consolidated within the crown under one brazing operation,
or the fork ends and capped plugs could be consolidated with the crown by one or
more compressing operations in lieu of brazing.
We are aware that our capped plug is a simple adaptation, nevertheless it is new
and original for the purpose described, it is also useful as will be readily understood
by cycle manufacturers.

page_text: 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 :-
1st. The making of a wheel rim by the combination of an upper guttered shell
with a lower convex brazed bridge piece, in the manner illustrated and described
in relation to Figure 1.
2nd. The making of a wheel rim by the combination of an upper guttered and
brazed shell with a lower convex bridge piece as illustrated and described in
relation to Figure 2.
3rd. The making of a cycle wheel-rim by the combination of an upper guttered
shell with a lower convex resilient bridge piece as illustrated and described in
relation to Figure 4.
4th. The making of a cycle fork-plug in the manner illustrated and described
in relation to Figures 6, 9, and 10.
5th. The combination of a cycle fork crown, a cycle fork, and a cycle-fork-plug
for the purpose of securing the fork to the crown as illustrated and described in
relation to Figures 4, 5, 7, and 8.
.
e
11004
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Agent for the Applicants.