Improvements in Velocipedes.
Year: 1893

page_text: Date of Application, 20th July, 1893
Complete Specification Left, 20th Apr., 1894-Accepted, 25th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Velocipedes.
I, JAMES GEORGE STIDDER, of 66 Waddon Old Road, Croydon, in the County
of Surrey, Sanitary Engineer, do hereby declare the nature of my said invention
to be as follows :-
My invention consists in an improved construction of rim for the wheels of
velocipedes fitted with detachable tyres: also in an improved brake: also in an
improved puncture rivet, and an improved plug for segmental pneumatic tyres.
I construct the rim of the wheel in three parts, consisting of a central hoop, and
two side hoops. The central hoop is of a rectangular section, open on the inner
side; and the two side hoops are so shaped as to be readily fixed to the central
hoop by means of key hole slots or perforations for the reception of studs or
screws. The two side hoops are also formed so as to embrace the lips or flanges
of the detachable tyre, and also to pass round a portion of the same so as to act as a
support to the detachable tyre.
My improved brake consists of two wheels or runners, one formed (preferably)
of rubber being fitted to the lower end of a forked rod; the other wheel, formed
of hard rubber, ebonite, or other suitable material being fitted to a forked lever,
linked to the same rod. A spiral spring is fitted to the spindle or rod, which lifts
the wheels out of action when the brake is off. To put on the brake the wheels
are pressed against the tyre by the lever attached to the handle bar. This has the
effect of pressing the wheels together. The hard wheel turns with the cycle
wheel, and, by its contact with the rubber wheel, the latter is turned in a contrary
direction to that of the cycle wheel, whereby sufficient friction is caused to
"brake " the wheel.
My improved puncture rivet is formed of rubber, and of the mushroom type.
The stem is tubular to receive a key. In stopping a puncture the end of the key
is inserted in the tubular stem. The head of the rivet is then pressed through
the puncture, the stem passing through to the outside. The key is then removed
and the protruding portion of the stem cut off.
In forming a plug for segmental pneumatic tubes, I form the end of the tube
with a neck, turned inwards. I provide a short tube, formed of brass or other
material, having a central external flange, and a tapered bore. This tube is
inserted in the ends of two adjoining segments of tyres. A plug inserted in the
tube effectually closes the same and renders the segments air tight.
Dated 20th July 1893.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.
COMPLETE SPECIFICATION.
Improvements in Velocipedes.
I, JAMES GEORGE STIDDER, of 66 Waddon Old Road, Croydon, in the County
Surrey, Sanitary Engineer, do hereby declare the nature of my said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention consists in an improved construction of rim for the wheels of

page_text: velocipedes fitted with detachable tyres. Also in an improved brake. Also in
an improved puncture rivet, and an improved plug for segmental pneumatic tyres.
And in order that my said invention may be particularly described and ascer-
tained, reference is hereby made to the accompanying drawings, in which similar
figures of reference indicate corresponding parts.
Fig. 1 is an elevation of my improved rim. Fig. 2 is a section on the line 11—12,
drawn to a larger scale, and Fig. 3 is a modification of the same.
I construct the rim of the wheel in three parts, consisting of a central hoop 13,
and two side hoops 14, 14. The central hoop 13 is of a rectangular section, or
thereabouts, and open on the inner side. The two side hoops 14, 14, are formed as
shown in Fig. 2, or as modified in Fig. 3, or approximating thereto. The central
hoop 13 is fitted with a number of studs or screws 15, having half-round heads or
cheese-heads; and the side hoops 14, 14, have corresponding key-hole slots or
perforations, into which the studs engage, after the manner of bayonet joints,
whereby the three hoops may be firmly united together. 16 is a set screw to
prevent the side hoops rotating upon the central hoop, when fixed, and becoming
disengaged. The two side hoops 14, 14, are also formed so as to embrace the lips
or beads of the detachable tyre, and also to pass round a portion of the same so
as to act as a support to the detachable tyre. For locking and unlocking the side
hoops to or from the central hoop, two pins 17, 17, are attached to the side
hoops 14. The operation of removing a side hoop is effected (after removing the
set screw 16) by inserting a lever between the two pins, and thereby causing a
partial rotation of the side hoop required to be removed. Other obvious methods
of engagement and disengagement may be adopted; or the hoops may be united by
screws.
My improved brake is illustrated in Fig. 4. It consists of two wheels or
runners 19, 20. The wheel 19 may be formed of rubber, or other suitable material,
and is sometimes provided with an annular brush, as shown. The wheel 19 is fitted
in the lower end of a forked rod 21. The wheel 20 is formed of hard rubber,
ebonite, or other suitable material, and is fitted to a forked bell-crank lever 22,
pivoted to the rod 21, at 23. 24 is a link pivoted to the lever 22 and also at 25 to
a collar 26 the latter being capable of sliding on the rod 21. A spiral spring 27 is
fitted to the spindle or rod 21, which lifts the wheels out of action when the brake
is off. To put on the brake the wheel 20 is pressed downwards, by means of the
rod 29. The wheel 19 is then pressed down by the rod 21, in like manner.
This
operation has the effect of pressing the wheels 19 and 20 together. The wheel 20
then turns with the cycle wheel, and, by its contact with the wheel 19, the latter
is turned in a contrary direction to that of the cycle wheel, whereby sufficient
friction is caused to "brake" the wheel, and to clean the tyre.
In some cases I dispense with the rod 29, and fix the collar 26 to the rod 21, so
that the latter rod may operate both wheels. In this arrangement the bell-crank
lever 22 is pivoted to the bracket arm 18 adjustably attached to the head tube.
My improved puncture rivet is illustrated in Figs. 5, 6, 7 and 8. Fig. 5 being
side view, Fig. 6 a section, and Figs. 7 and 8 illustrating is application. The
rivet is formed of rubber or rubber and canvas, and is of the mushroom type. The
stem is tubular to receive a key 30, In stopping a puncture the end of the key is
inserted in the tubular stem. The head of the rivet is then pressed through the
puncture, as shown in Fig. 7, the stem passing through to the outside. The key
is then removed and the protruding portion of the stem cut off, as shown in section
in Fig. 8.
In forming a plug for segmental pneumatic tubes, I form the end of each tube
with a neck turned inwards, as shown at 31 in Fig. 9. I provide a short tube 32,
formed of brass or other material, having a central external flange 33, and a tapered
bore. This tube is inserted in the ends of two adjoining segments of tyres, as
shown. A plug inserted in the tube effectually closes the same and renders the
segments air-tight.

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 :-
1. The improved construction of the rims of velocipede wheels, substantially as
herein before described and illustrated by Figs. 1, 2 and 3 of the drawings.
2. The improved construction of brake for velocipedes, substantially as herein
before described and illustrated by Fig. 4 of the drawings.
3. The improved construction of puncture rivet, substantially as herein before
described and illustrated by Figs. 5, 6, 7 and 8 of the drawings.
4. The improved construction of segmental pneumatic tyres, and the improved
method of and arrangements for plugging the same, substantially as herein before
described and illustrated by Fig. 9 of the drawings.
5. The improvements in velocipedes, substantially as and for the purposes.
described.
GEO. DOWNING,
8, Quality Court, London, W.C., Agent.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.