Improvements connected with Cyclometers.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements connected with Cyclometers.
I, JOHN TURNER HOPWOOD, of Ketton Hall, Stamford, Gentleman, do hereby
declare the nature of this invention to be as follows:-
Cyclometers as fitted at present to bicycles, tricycles and the like are very
liable to be damaged, or even knocked off altogether, by coming violently in con-
tact with extraneous bodies. This is particularly the case during transit on rail-
ways, either whilst being wheeled along platforms crowded with luggage &c. or
whilst in the luggage van.
Now this invention consists in providing a light and efficient cyclometer guard
of neat and compact appearance which will not interfere with the proper operation
of.the cyclometer nor with the free running of the cycle to which it is fitted.
For the purpose of my invention I preferably construct the cyclometer guard
of a piece of metal or other material, bent or curved to conform more or less closely
to the outer profile of the cyclometer and attached in any convenient manner,
and preferably removably and adjustably, to a suitable part of the cycle. The
guard may embrace or enclose the cyclometer to a greater or less extent, and its
depth in a plane or planes at right angles to the plane of the cyclometer is made
preferably slightly greater than the thickness of the cyclometer with which it
is designed to be used.
The guard is preferably fixed at its rear end, whilst its forward end is free,
and is bent or curved round the forward surface of the cyclometer so as to protect
the latter from impact in the forward and lateral directions. The said rear attach-
ment of the guard protects the cyclometer from impact in the rearward direction,
whilst impact from above and below is warded off by making the guard of greater
depth than the cyclometer as above mentioned.
£6
39
A suitable form of my cyclometer guard designed more particularly for. use
with cyclometers of the "Veeder" and Trenton types, in which the cyclo-
meter is stationary and is fixed on the axle of the front cycle wheel and the
counting mechanism is operated by means of a star wheel actuated by a pin on
one of the spokes of the cycle wheel, is the following.--
The guard, which is made of a piece of metal bent at right angles for the
"Veeder," and suitably curved for the " Trenton," is formed at its rear end with
a hole, through which passes a pin that is fixed to a clip on the lower part of
one of the front forks of the cycle. A convenient form of clip consists of two
plates curved to fit the fork and adapted to grip the same between them by means
of nuts and bolts passing through the ends of the clip plates. One of these
bolts may be prolonged to form, or may be constituted by, the pin above referred
to which passes through the hole in the rear end of the guard. That end of
the guard is preferably split and is provided with a nut and bolt or stud for
gripping the said pin.
The guard is thus capable of adjustment around and also along the pin, and
the whole device is adjustable on the fork.
Or instead of the guard being attached to the fork as above described, the
spindle or axle of the front wheel may, be elongated, and the guard fixed thereon.

page_text: When intended for use with cyclometers which revolve with the wheel, the
guard can be fixed on the spindle or axle of the wheel and revolve with the
cyclometer, and it is preferably made to surround practically the whole of
the cyclometer,
Instead of the guard being formed separately from the cyclometer casing as
herein before described, the cyclometer casing may form part of or be fixed to the
guard a separate attachment of the cyclometer to the machine can then be dis-
pensed with.
I, JOHN TURNER HOPWOOD, of Ketton Hall, Stamford, Gentleman, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
Cyclometers as fitted at present to bicycles, tricycles and the like are very
liable to be damaged, or even knocked off altogether, by coming violently in con-
tact with extraneous bodies. This is particularly the case during transit on rail-
ways, either whilst being wheeled along platforms crowded with luggage &c. or
whilst in the luggage van.
Now this invention consists in providing a light and efficient cyclometer guard
of neat and compact appearance which will not interfere with the proper operation
of the cyclometer nor with the free running of the cycle or other vehicle to which
it is fitted.
For the purpose of my invention I preferably construct the cyclometer guard
of a piece of metal or other material, bent or curved to conform more or less closely
to the outer profile of the cyclometer and attached in any convenient manner,
and preferably removably and adjustably, to a suitable part of the cycle. The
guard may embrace or enclose the cyclometer to a greater or less extent, and its
depth in a plane or planes at right angles to the plane of the cyclometer is made
preferably greater than the thickness of the cyclometer with which it
is designed to be used.
The guard is preferably fixed at its rear end, whilst its forward end is free,
and is bent or curved round the forward surface of the cyclometer so as to protect
the same from impact in the forward and lateral directions. The rear attach-
ment of the guard protects the cyclometer from impact in the rearward direction,
whilst impact from above and below is warded off by making the guard of greater
depth than the cyclometer as above mentioned.
A suitable form of my cyclometer guard designed more particularly for use
with cyclometers of the "Veeder" and "Trenton" types, in which the cyclo-
meter is stationary and is fixed on the axle of the front cycle wheel and the
counting mechanism is operated by means of a star wheel actuated by a pin on
one of the spokes of the cycle wheel, is the following,-.
The guard, which is made of a piece of metal bent at right angles for the
"Veeder," and suitably curved for the "Trenton," is formed at its rear end with
a hole, through which passes a pin that is fixed to a clip on the lower part of

page_text: one of the front forks of the cycle. A convenient form of clip consists of two
plates curved to fit the fork and adapted to grip the same between them by means
of nuts and bolts passing through the ends of the clip plates. One of these
bolts may be prolonged to form, or may be constituted by, the pin above referred
to which passes through the hole in the rear end of the guard. That end of
the guard is preferably split and is provided with a nut and bolt or stud for
gripping the said pin.
The guard is thus capable of adjustment around and also along the pin, and
the whole device is adjustable on the fork.
Or instead of the guard being attached to the fork as above described, the
spindle or axle of the front wheel may be elongated, and the guard fixed thereon.
When intended for use with cyclometers which revolve with the wheel, the
guard can be fixed on the spindle or axle of the wheel and revolve with the
cyclometer, and it is preferably made to surround practically the whole of
the cyclometer.
Instead of the guard being formed separately from the cyclometer casing as
hereinbefore described, the cyclometer casing may form part of or be fixed to the
guard; a separate attachment of the cyclometer to the machine can then be dis-
pensed with.
In the accompanying illustrative drawings:-
Figure 1 is a side elevation, and
-
Figure 2 a plan showing a suitable form of construction of guard arranged
in position for protecting a cyclometer of the "Veeder" type;
Figure 3 is a side elevation, and
Figure 4 a plan showing a. suitable form or construction of guard arranged
in position for protecting a cyclometer of the "Trenton" type.
Referring to Figures 1 and 2, A indicates a cyclometer of the "Veeder" type
fixed on the axle B of a front wheel of a cycle of which only a portion of the
hub C is shown. D is the guard, it is made of a piece of metal of more or less
ornamental shape, and it is bent at right angles so as to conform more or less
closely to the outline of the front and side of the cyclometer A which it is designed
to protect from impact in those directions. Protection is afforded against impact
above by forming the guard with an enlargement d of circular form at that part
which is situated immediately opposite to the front end of the cyclometer. This
enlargement d is made of slightly greater diameter than the outer diameter of
the cyclometer, whilst the remaining portion of the guard is of suitably reduced
depth.
to.
The guard is protected from impact in the rear by the pin E hereinafter referred
For the two-fold purpose of diminishing the weight of the guard and of
imparting to it an appearance of greater lightness, a central hole d' may be formed
in the enlargement d.
The guard D is formed at its rear end with a hole through which passes a pin
E that is fixed to a clip F'secured to the lower part of the front fork G of the
cycle frame. The form of clip shown consists of two plates F F curved to fit the
fork and adapted to grip the same between them by means of nuts and bolts ff¹.
the said bolts passing through the ends of the clip plates F. In the clip shown
one (1) of the bolts is constituted by the inner end of the pin E which passes
through the hole in the rear end of the guard D. This end of the guard is split
and is provided with a headed screw stud H for gripping the plain portion of
the pin E.
The guard D is thus capable of adjustment around and also along the pin E,
and the whole device is adjustable on the fork G.
وو
In Figures 3 and 4 which illustrates a form of guard suitable for use with a
cyclometer of the "Trenton type, A¹ indicates the cyclometer, and D' indicates
the guard which is in this case curved to suit the larger type of cyclometer. The
guard is made of a uniform depth slightly greater than the thickness of the

page_text: cyclometer A¹, and with ornamental and strengthening fillets or beadings d2 at
top and bottom. The mode of adjustable attachment of this guard is the same
as that of the guard illustrated in Figures 1 and 2, and the same letters of
reference indicate the same parts.
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. A cyclometer guard for use with cycles and other vehicles consisting of a
suitably shaped part attached, preferably removably and adjustably, to a part
of the cycle or other vehicle, and arranged to embrace or enclose the cyclometer
to a suitable extent substantially as set forth.
2. A cyclometer guard, constructed substantially as described with reference
to Figures 1 and 2 of the accompanying drawings.
3. A cyclometer guard, constructed substantially as described with reference
to Figures 3 and 4 of the accompanying drawings.
Dated this 26th day of May 1898
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London, Chartered Patent Agents.