Improvements in the Construction of Sprocket Wheels and Mudguard Clips for Velocipedes.
Year: 1897

page_text: Date of Application, 22nd Nov., 1897-Accepted, 29th Jan., 1898
COMPLETE SPECIFICATION.
Improvements in the Construction of Sprocket Wheels and Mudguard
Clips for Velocipedes.
I, THOMAS GROVES, of the Ormonde Cycle Company Limited, Romford, Essex,
Works Manager, 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 improvements in connection with the small parts used
for cycles, and provides a construction of sprocket wheel and a clip for mud
guards of an improved kind.
I propose to form the sprocket in two parts according to a method already in
use, the inner part consisting of a central disc or ring carrying four arms or
spokes to which the rim or outer part of the wheel is fitted. According to my in-
vention I stamp this inner part from sheet steel and thereby obtain the shape
desired in a simple and efficient manner, the article requiring no additional trim-
ming or manipulation. Each arm is formed with a pair of projections or teeth
bent up from the surface. When the parts are fitted together these teeth bear
against the inside of the inner rim, the flange of which is cut away to receive
the ends of the arms. The parts are then screwed together in the usual manner.
The arrangement I employ for carrying the mud guard consists of a clip or clamp
which requires only a single screw. It is made in two parts, one of which is flat
with a small slot at one end, and the other is bent up to form a channel and
serving as a socket. The extremity of this part is made smaller and is bent so
that it can be passed through the slot into the other piece. The two parts then
fit together and can be firmly secured by a single screw.
In order that the invention may be more clearly understood, reference is had to
the accompanying sheet of drawings, in which Fig. 1 shows my improved sprocket
wheel in elevation, Fig. 2 is a section of the same, and Fig. 3 shows a clip for mud
guards.
Referring to Figs. 1 and 2, A is the part to which my invention applies, and
this as shown consists of a plate stamped out so as to form radial arms with a
central disc or ring. Close to the end of each arm two teeth a are formed one at each
side. These are bent up from the surface as shown in Fig. 2 and engage inside the
rim B of the wheel. The flange b is cut away to receive the arms of the part A,
and screws are passed through the holes a¹ fitting the parts together.
The clip shown in Fig. 3 is formed from two plates C and D, the former being
made flat and provided with the small slot c close to one end. The other plate
is adapted to lie on top of this, and is bent up at d to form a socket. The ex-
tremity is made narrower and is bent down so that when passed through the
slot c the two plates may be fitted together, and secured by a screw or bolt passing
through the hole E.

page_text: 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:
-
1. An improved sprocket wheel for cycles formed in two parts, the central one
consisting of a part stamped from sheet steel having radial arms and secured to
the rim and projecting teeth belonging to each arm fitting within the rim, sub-
stantially as described and shown and for the purposes specified.
2. The improved clip for securing mud guards, consisting of a flat strip of metal
slotted at one end and a second strip bent so as to form a socket and having
a projecting part adapted to be passed through the slot, the two parts being con-
nected together by a single screw or bolt, substantially as described and shown
and for the purposes specified.
100%
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.