Year: 1898

page_text: We, LEONARD BOUCHAL and JOHANN KOPRIVEC, of I, Tiefer Graben 13, Vienna,
follows:-
Austria, do hereby declare the nature of this invention to be
as
-
The cycle forming the subject of this invention differs from the cycles hitherto
known in that it is propelled not by pedalling, but by the rocking motion of the
rider.
The cycle according to this invention is chiefly characterised by a lever sup-
porting the seat and attached to an oscillating guide, said lever being adapted
to oscillate or rock to and fro in the cycle frame in the direction of travel, alter-
nately operating driving devices which act, for the purpose of rotating the driving
wheel, on a coupling device mounted on the spindle of said wheel. The rotation
of the driving wheel may be stopped by means of a brake operated by the foot,
in case it is desired not to use the usual brake acting on the other wheel.
In carrying out this invention the saddle is supported by a lever passing
through a slot in the upper part of the cycle frame. This lever is pivoted on an
oscillating or rocking guide constituted by two pairs of decussated levers pivoted
to the cycle frame and to the lateral arms of the rocking lever.
Owing to this arrangement the lever can be caused to oscillate from its posi-
tion of rest by a rocking motion of the rider seated in the saddle, the amplitude
of the oscillations of the lever being limited by spring stops.
In order to cause the driving wheel to be rotated by the oscillations of the
lever the latter is connected at equal distances from its pivotal point, to strong
springs cords, chains or cables extending from the springs to clutch couplings
mounted on the spindle of the driving wheel, the cord from the upper spring
passing round the hub of the casing of the coupling and being secured to the
lower arm or part of the rocking lever, while the other cord from the lower
spring passes round the other coupling and is secured to the upper arm or part of
the rocking lever.
•
When the rocking lever is moved into its forward position the pull on the top
cord will rotate the loose casing of its coupling and this rotary movement will
he transmitted to the driving wheel in the direction of forward movement of the
cycle by the part of the coupling secured to the spindle of the back wheel.
While the cycle it thus being propelled by the upper driving cord the lower
device remains inoperative. When the rocking lever moves backward, said lower
device becomes operative whereby, in the same way as before, the lower cord
effects the propulsion of the cycle while the upper device returns into its original
position.
The steering may be effected by means of a steering tube which is rotatable
at its lower end in a bearing on the lower part of the cycle-frame by means of a.
ball joint. The upper end of the steering tube is guided and rotatable in a
bracket secured to the rocking lever so that the steering tube participates in the.

page_text: oscillations of the lever. The steering tube is provided at the bottom with lateral
arms connected by links to a cross tube secured to the shaft of the steering fork.
The braking of the driving wheel may be effected in this case by means of a
foot brake mounted on the frame and constituted by a lever with a pedal the
rocking lever passing through the slot in it, the brake lever being connected to
the rocking lever by means of a pin passing through a longitudinal lateral slot.
in the brake lever.
When the brake lever is in the position of rest, in which the pedals serve as
foot-rests, the brake-lever rests with its back on a projection of the rocking lever.
When it is desired to apply the brake, the brake lever is pushed back by the
feet and then depressed, its rear end pressing the brake pivotted on the lower
tube or frame or its shoe against the back wheel.
In a modified construction of the driving gear the oscillating lever does not act
directly as a two armed lever on the driving devices, but is provided with foot-
rests and connected by a link with a two armed lever pivoted on the cycle frame
and acting at its two ends on the driving devices similar to those already des-
cribed.
D
1011
11
1000
BOULT & WADE,
Agents for the Applicants.
We, LEONARD BOUCHAL and JOHANN KOPRIVEC, of I, Tiefer Graben 13, Vienna,
Austria, 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:
--
The cycle forming the subject of this invention differs from the cycles hitherto
known in that it is propelled not by pedalling, but by the rocking motion of the
rider.
The cycle according to this invention is chiefly characterised by a lever sup-
porting the seat and attached to an oscillating guide, said lever being adapted.
to oscillate or rock to and fro in the cycle frame in the direction of travel, alter-
nately operating driving devices which act, for the purpose of rotating the driving.
wheel, on a coupling device mounted on the spindle of said wheel. The rotation of
the driving wheel may be stopped by means of a brake operated by the foot,
in case it is desired not to use the usual brake acting on the other wheel.
The accompanying drawing illustrates a cycle according to this invention:
Figure 1 being a side elevation, and
Figure 2 a plan.
Figure 3 shows, in plan, the connection of the oscillating guide with the rock--
ing lever.
Figure 4 a part of the lower cycle frame, also in plan, and
Figure 5 a similar view of the pedal and lever operating the brake.
Figure 6 shows the lower end of the handle-bar in elevation.
Figures 7 and 8 are respectively a transverse section and elevation of the coup-
ling on the driving wheel.
Figure 9 is a diagrammatic view showing by way of example a construction of
a cycle according to this invention provided with the usual brake acting on the
front wheel, the rocking lever in this construction operating, by means of a link,
the lever operating the driving devices.

page_text: It will be seen from Figure 1 that the saddle A is supported by a lever C pass-
ing through a slot 6 in the upper part of the cycle frame B. This lever is pivoted
on an oscillating or rocking guide D constituted by two pairs of decussated
levers d pivoted to the cycle frame B at points b¹ and to lateral arms c of the
rocking lever C.
Owing to this arrangement the lever C can be caused to oscillate from its
position of rest (Figure 1) by a rocking motion of the rider seated in the saddle,
the amplitude of the oscillations of the lever being limited by spring stops 68.
In order to cause the driving wheel H to be rotated by the oscillations of the
lever C the latter is connected, at equal distances from its pivotal point, to strong
springs ff, cords, chains or cables zz¹ extending from the springs to clutch
couplings EE (Figures 2, 7 and 8) mounted on the spindle of the driving wheel,
the cord z from the upper spring f passing round the hub e of the casing e of the
coupling E and being secured to the lower arm or part of the rocking lever C,
while the other cord ¹ from the lower spring f¹ passes round the other coup-
ling E and is secured to the upper arm or part of the rocking lever C.
When the rocking lever C is moved into its forward position II, the pull on
the cord z will rotate the loose casing e¹ of its coupling E¹ in the direction indi-
cated by the arrow a (Fig. 8), and this rotary movement will be transmitted to
the driving wheel in the direction of forward movement of the cycle by the
part of the coupling secured to the spindle of the back wheel.
While the cycle is thus being propelled by the upper driving cord fz, the
lower device f¹¹ remains inoperative. When the rocking lever C moves back-
ward into the position I, said lower device becomes operative whereby, in the
same way as before, the lower cord effects the propulsion of the cycle while the
upper device returns into its original position.
Each friction clutch (which in itself forms no part of the invention) consists
of a disc rigidly fixed on the axle h and provided with 4 pivotted cams or
tappets kept in radial position by springs, a drum or casing e¹ loosely surround-
ing said parts which casing when rotated to the left (or in the direction opposite
to that of the rotation of the hands of a watch, see arrow on Fig. 8) engages the
cams and therefore carries along with it the coupling disc e².
When the casing turns in the opposite direction the cams are not engaged
by the casing so that parts are not coupled together.
Both couplings act in the same direction, as will be clearly seen in Fig. 1,
one of the cords z being arranged as an open cord, whilst the other cord 2¹ is
arranged as a crossed driving cord.
The steering in the construction illustrated in Fig. 1 is effected by means of
a steering tube L and terminates in a ball 7 (Figure 6) which is rotatable in a
bearing on the lower part of the cycle frame B (Figure 4). The upper end of
the steering tube is guided and rotatable in a bracket 12 secured to the rocking
lever C so that the steering tube participates in the oscillations of the lever.
The steering tube is provided at the bottom with lateral arms connected by
links to a cross tube 15 secured to the shaft of the steering fork.
The braking of the driving wheel may be effected in this case by means of a
foot brake mounted on the frame and constituted by a lever G with a pedal g
(Figures 1 and 5) the rocking lever C passing through the slot g¹ (Figure 5) the
brake lever G being connected to the rocking lever C by means of a pin y pass-
ing through a longitudinal lateral slot g² in the brake lever G.
When the brake lever G is in the position of rest, in which the pedals g serve
as foot-rests, the brake lever rests with its back on a projection of the rocking
lever C.
When it is desired to apply the brake, the brake lever G is pushed back by
the feet and then depressed its rear end pressing the brake ¹ pivotted on the
lower tube or frame, or its shoe i against the back wheel.
In the construction of the driving gear for cycles illustrated in Figure 9 the
oscillating lever does not act directly as a two armed lever on the driving devices,

page_text: but is provided with foot rests m and connected by a link n with a two armed
lever C pivoted on the cycle frame B and acting at its two ends on the driving
devices similar to those already described.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1. A cycle driven by the rocking motion of the rider, characterised by a rock-
ing lever carrying the seat and pivoted to a guide, as D, pivoted to the cycle
frame, which lever operates, by means of alternately actuated cords, clutch coup-
lings mounted on the driving wheel spindle in such manner that the casings of
said couplings are alternately rotated to a small extent and the couplings are
operated in the direction of the advance movement of the cycle.
2. In a cycle of the kind described a steering device characterised by a rota-
table steering rod participating in the oscillations of the rocking seat lever the
lower end of said steering rod being supported by means of a ball joint in the
-cycle frame and having lateral arms connected by links to the cross piece of the
front fork tube.
3. In a cycle of the kind described a foot brake characterised by a foot brake
lever mounted on the rocking seat lever so as to be capable of pivoting and mov-
ing and provided with pedals, said brake lever resting normally on a projection
of the seat lever and acting when moved backwards and depressed, on a lever
pivoted to the cycle frame and carrying the brake block substantially as described.
4. A construction of the driving gear for cycles of the kind described character-
ised by the rocking lever being in the form of a one armed lever and provided
with foot rests and connected by a link as n with a two armed lever pivoted at
its centre to the cycle frame, the latter lever operating by its ends on the driving
cords connected to clutch couplings substantially as described.
5. A cycle driven by the rocking motion of the rider, comprising a rocking
seat tube or rod with extensions connected to the lower cycle frame by crossed
levers, as d, substantially as described.
6. The combination and arrangement of parts constituting the complete driv
ing mechanism for cycles substantially as described or illustrated in Figure 1,
or in Figure 9 of the accompanying drawings.
D
JT 1000