Improvements in and relating to Wheel-rims.
Year: 1895

page_text: Date of Application, 22nd Oct., 1895-Accepted, 21st Mar., 1896
COMPLETE SPECIFICATION.
Improvements in and relating to Wheel-rims.
I EDWARD WARWICK, Mechanical Engineer, of Trinity House, Tinity Road,
Handsworth, Birmingham, in the County of Warwick 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 relates to the metal-rims of cycle wheels and other wheels.
Hither to the metal rim of a cycle wheel has been pierced with a series of small
holes though which to pass the wie spokes, the conical part of the spoke-head
taking into the rim spoke-hole and acting as a wedge, thereby frequently producing
two short longitudinal splits one on each side of the spoke-hole and thus weakening
the rim and deteriorating the set and gidity of the complete wheel when such
complete wheel is made from the old style rim without my improved thickened
spoke-holes. To prevent the slitting or splitting of the wheel rim at the spoke
holes 1 provide eyelets, and secure them to the rim in the following manner.
Figure 1 represents a plan of broken off portion of metal rim.
Figure 2 represents a section of Figure 1 on the line A. B.
Figure 3 represents a section of rim, eyelet, and spoke on the line C. D. Figure 1
with the addition of spoke head.
Figure 4 represents an oval blank suitable to compress into an eyelet
Figure 5 represents a round blank suitable to compiess into an eyelet.
Figure 6 represents the round blauk compressed into an eyelet.
Figure 7 represents the oval blank compressed into an eyelet.
In carrying out my invention I utilize any suitable section of rim but instead of
piercing holes of a size suitable to receive the spokes, such as the holes shewn at a
pierce the holes of a larger diameter suitable to receive the outer periphery b of
eyelet barrel.
I
In producing my eyelets I by preference provide an oval blank such as shewn
at Figure 4 or a round blank such as shewn at Figure 5 and by means of suitable
tools, press and compress the flat blank until the tubular part b is produced,
the curvature of the eyelet would be in accordance with the curvature of the section
of rim.
In connecting the eyelet to the rim, the barrel pait b would be passed through
the spoke-hole, the projecting part would next be expanded over the under or outer
side of rim until the ends c reached the position shewn at d Figure 3.
The upper entrance to the eyelet-hole is shewn tapered at e, nevertheless I in
some cases prefer to make a rounded corner at the entrance f.
I have shewn a sufficient number of views to demonstrate that my invention
consists of the application of eyelets to each spoke-hole of a wheel-rim but I do not
confiue myself to the use of an eyelet made out of one piece as I prefer in some
cases to use a separate disc over the bariel part b, compressing the separate disc and
the barrel pait & together so as to form the under-washer pait d.
The advantage to be gained by the use of my invention is that the m
being made of treble thickness around the spcke-holes, the pressure of the angular
head of spoke will be exerted against the 1m-eyelet instead of against the rim, and
splitting or slitting of the rim at spoke-holes will be thus prevented.

page_text: 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
The making of a wheel im suitable for use in the construction of cycle-wheels
and other vehicle wheels, by the combination of eyelets with the spoke-holes of the
rim as illustrated and described for the purpose of preventing the rim fiom
splitting at the 'spoke holes
--
1005
Witness-
EDWARD WARWICK.
ALFRED W. TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Patent Agent.