Year: 1898

page_text: Date of Application, 17th Mar., 1898-Accepted, 7th May, 1898
he frame, shown in Fig. 1.
Fig. 9 is an enlarged sectional view of the wires showing the crimps therein.
The first part of the invention relates to a construction that adapts it to the
purposes of a chain guard alone, as shown in Figs. 2, 3, and 4, to which reference is
made.
1 designates the inner wire forming part of the frame, and consisting of a
continuous piece of round wire. This wire is rounded at one end as at 2, and
continuing back forms a brace at its rear end as well as a guard at said rear end for
the small sprocket wheel.
This rear end of said frame, terminates in an eye 3 which fits over the axle or hub
of the rear wheel of a bicycle. The same bolt that holds the rear wheel in position
also holds the guard, thus doing away with all other devices for the purpose of holding
the guard in position.
Parallel with the upper edge of the wire 1 and extending around the rounded
end 2 thereof, is a wire 4 of the same size as wire 1 and which is fast thereto by
cross wires 7. This wire 4 forms a brace to stiffen the guard, and bas one of its ends
united to the said wire 1 at 5 by being clinched thereto, and the other end united at
the rear end of the frame by means of a ferrule 6. The lower portion of the frame,
therefore, consists solely of the wire 1 except at the rounded end 2. The mesh or
cross wires 7 are first crimped and then woven with the frame wires 1 and 4 into any
desirable designs. The ends thereof are turned over the frame wires 1 and 4 and
clinched thereto; a portion of them extending over the outer wire 4 to the inner
wire 1 thereby forming a guard or top shield for the chain and wheels. The object of
discontinuing one of the wires at the bottom is to avoid an objection found in wooden
frames for the attachment of cords, namely, the chain relaxing, strikes the wood and

page_text: causes more or less noise. And in the case of the so-called aluminium guards, this
noise is greatly augmented. In the present invention, there is no part of the guard
at the lower part for the chain to strike against.
After uniting the mesh wires 7 with the frame wires the article is then dipped in
a bath of melted tin which gives it a tin plate that protects it from rust, and solders
every joint where the wires meet or cross each other. This makes the guard practically
one rigid construction of a very light nature.
Extending across the upper and lower edges are clips 8 which are clinched to the
wires 1 and 4. These clips are of sheet metal and are provided with holes 9 to
receive the bolts of the front brace usually found on ladies' bicycles. This brace
above referred to, extends from the crank hanger or bearing, and is a common
feature. It is essential that the holes 9 and 3 be oblong, as thereby any adjustment
of the chain to tighten the same, allows the guard to move back with the wheel.
The opening 10. for the crank boss to project through, is provided by the omission
of a portion of two mesh wires 7 at that point. The guard is made suitable for the
purposes of a dust proof case by constructing it as shown in Fig. 1. The two side
wires and 4 each has its ends joined to form one continuous frame. The cross
wires 7 unite said frames and hold them a suitable distance apart to provide room for
the chain and wheels to move in. 11 designates longitudinally interwoven wires
connecting the two ends of the frames 1 and 4 and interwoven with the cross wires 7.
12 is a loop formed of larger wire, the ends of which are clinched to the inner frame 1
and the body of which is joined to the cross wires 7. This loop extends inwardly and
fits over the axle or hub of the rear wheel of the bicycle, and thus the frame is
supported at that end. The dust-proof case or covering consists of leather or other
flexible and impervious material 13 the meeting edges 14, 14 of which are laced
together by strings 15 and hooks 16. As is shown, this covering is cut into three
pieces, the main portion 13 of which closes one entire side, and extends over and
closes the opposite side with the exception of the ends.
The end pieces 17, 17 are sewed to the rounded edges of the body portion 13 and
laced at the larger end to said body portion. The material at the smaller end
projects under the over-lapping edge of said body portion. The point of lacing the
edges of the body portion is under the lower edge of the frame. The said cover
is provided with holes 18, 18 through which the crank axle and the rear wheel
axle project.
Having now particularly described and ascertained the nature of this invention.
and in what manner the same is to be performed we declare that what we
claim is :-
1. A chain guard for bicycles, comprising the frame wires 1 and 4 which are joined
and held a suitable distance apart by cross wires 7, the wire 1 having a loop at
one end, by which the same is supported, and clips at the other end for the same
purpose.
2. A dust proof case for bicycles, comprising the wire frames 1 and 4 interwoven
with cross wires and held a suitable distance apart, a loop at one end, and clips at the
other end for supporting said frame, and a flexible cover inclosing said frame and
laced thereto.
1000
Bath CHII
NOIRTY 10
BUY
1000
1000
HERBERT HADDAN & Co.,
Agents to Applicants, 18, Buckingham Street, Strand, W.C., London.