Improvements in Bicycles.
Year: 1890

page_text: Date of Application, 31st Oct., 1890
Complete Specification Left, 31st Dec., 1890-Accepted, 31st Jan.,
1891
PROVISIONAL SPASIGALTUN.
Improvements in Bicycles.
We, EUGENE WORMS, Mechanic, and ALEXANDRE SIGISMOND ZWIERZ-
CHOWSKI, Engineer, both of 32 Rue Etienne Marcel, Paris, in the Republic of
France, do hereby declare the nature of this invention to be as follows:-
This invention relates to a construction of bicycle and its mechanism in such a
manner as to avoid the dangers attending the use of high wheeled bicycles without
sacrificing speed, and to provide elastic support for the saddle and means of braking.
by use of the steering handles.
.
For these purposes, the driving wheel is made of small diameter, but, in order to
maintain speed, it is driven by spur gear from the pedal shaft which passes through
its nave.
The pedal shaft has fixed on it, just within the limb of the fork on one
side, a toothed wheel which drives a pinion mounted on the fork limb, and attached
to this pinion is another toothed wheel which drives a pinion on the nave of the
driving wheel. The pedal shaft works in ball bearings formed in the limbs of the
fork, and the nave of the driving wheel has ball bearings running on the pedal
shaft.
The saddle rests on helical springs guided in vertical tubes attached to a
horizontal plate which has a vertical arm passing through a slot in a piece attached
to the sleeve in which the fork spindle works.
This arm can be raised or lowered and fixed by a setting screw to adjust the
height of the saddle. To the upper part of the fork is jointed the brake shoe
which is kept off the wheel tyre by a spring.
From this shoc a cord or wire passes up the fork spindle which is tubular and is
This steering
guided into one of the steering handles where it is attached to a nut.
handle has a screw threaded spindle working in this nut, so that by turning the
handle the nut can be moved, straining the wire or cord and so causing the brake
to be put on.
Dated this 31st day of October 1890.
ABEL & IMRAI,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Bicycles.
We, EUGENE WORMS, Mechanic, and ALEXANDRE SIGISMOND ZWIERZ-
CHOWSKI, Engineer, both of 32 Rue Etienne Marcel, Paris, in the Republic of
France, 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 a construction of bicycle and its mechanism in such a
manner as to avoid the dangers attending the use of high wheeled bicycles without
sacrificing speed, and to provide clastic support for the saddle and means of braking
by use of the steering handle.
The accompanying drawings represent the construction and arrangement of a
bicycle according to this invention.
Fig. 1 is a side view and Fig. 2 is a front view.
The driving wheel R is of comparatively small diameter, but, in order to obtain
the desired speed, it is driven by gearing in the following manner.
The axle A for the pedals P P has keyed on it, not the wheel R, but a toothed
wheel B which gears with a pinion C. This pinion has attached to it another
CD 627

page_text: wheel D which gears with a pinion F fixed on the nave of the wheel R. The
gearing may be so proportioned that one revolution of the crank axle may give two
to the wheel. This arrangement also reduces the risk of falling forward because
the effect of the gearing is to strain backwards the pivot E of the intermediate
wheel D.
Fig. 3 is a longitudinal section to an enlarged scale and Fig. 4 a part transverse
section of the bearings for the crank axle.
On the axle A. are screwed two rings G and G¹ hollowed to receive the balls a
which are kept in place by the rings which are screwed in the bosses K and
are prevented from unscrewing by setting screws . The nave of the wheel R also
of the axle between
runs on balls a bearing on the one side against a shoulder
that and a ring H² screwed into the nave, and on the other side between G¹ and a
seating screwed into the nave. The ring G is the nave of the wheel B which
gears with the pinion C. This pinion, having the second wheel D in one piece
with it, revolves on a ball bearing on the axle E fixed in one of the limbs of the
fork D drives which is keyed on the nave of K. The saddle frame P is fixed
to the ring M on the vertical bearing N, not to the back bone O, so that the small
hind wheel is not loaded.
C
The frame P, besides being adjustable in height can be inverted, as shewn in
Fig. 8, thus giving a wide range of adjustment. The bar P carries a triangular
plate Q on which are fixed three tubular studs that enter inverted studs with
internal springs . These springs are thus quite enclosed, and if one should give
way the stud can only descend a little way to the plate Q.
The brake is worked as shown by Figs. 5, 6 and 7 in the following manner. The
shoe hinged at d under the tubular support N, has under its tail a spring
A wire e attached to the tail off the shoe f
which keeps the shoe off the wheel R.
extends up
N and into the steering handle R¹ where it is attached to a ring g.
This ring forms a nut on a screw the end of which is fixed by a square part m
and a nut to the end of the handle S which can be turned by hand and is held in
The nut is prevented from
position on R¹ by a set screw entering a groove.
turning by feathers projecting from it into slots of the tube forming continuation
of R. The rider desiring to put on the brake turns the handle S, thus turning the
screw and drawing back the nut y and the wire e which causes the shoe to bear
against the wheel R. The screw may be so tightened as to hold the handle S
immovable and thus keep the brake on.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we claim:
1. The arrangement of the ball bearings for the pedal axle and the wheel nav
in. combination with the gearing, substantially as described with reference t
Figs. 3 and 4.
2. Fixing the saddle carrier on the vertical support N, substantially a
described.
3. The construction of the saddle frame with tubular studs b and c and springs
substantially as described.
4. The brake mechanism substantially as described with reference to Figs. 5,
and 7.
Dated this 31st day of December 1890.
DET 2. IMRAY
A DET 2. IMRAY
Agents for the Applicants.