Year: 1898

page_text: wo hereby decrie the nature of this invention to be as 10TIONS
The oscillating or pendulum apparatus hitherto employed for medical gymnastics,
consist of a pendulum whose axis of oscillation is provided with a suitable operative
lever for setting it in motion.
These apparatus have the disadvantage that firstly a very long pendulum has to be
employed in order to obtain the necessary small number of oscillations per minute,
secondly that they have to be loaded with heavy weights, and thirdly that the amplitude
of the pendulum can only be small and consequently the motion can only be effected
through a comparatively small angle.
My present invention relates to a medical gymnastic apparatus in which the patient
imparts motion to a heavy body arranged symmetrically round a rotary axis, which
receives an impulse in the one direction by the hand of the patient and in the
contrary direction by means of a spring acting in opposition to the first motion, so
that the patient can maintain the heavy body in motion without material exertion
and can at the same time obtain a considerably greater amplitude and consequently
also a greater angle of oscillation, such as up to 300°.
I will describe the construction of the apparatus with reference to the accompany-
ing drawing which shews several modifications of the same.
Figs. 1 and 2 shew respectively a side view and front view of an arrangement in
which a heavy fly wheel a which can be loaded at two diametrically opposite points with
spherical or other weights a¹, is carried by an axis b having fixed on it a crank handle b',
and running in bearings in a suitable pillar frame, on which axis is fixed a lever arm c
that is connected by a link c¹ with the one end of a blade spring d, whose other end
is fixed at d to the pillar frame.
The flywheel is turned in one direction through a greater angle than 90°, by the
muscular action of the arm holding the handle whereby the spring has an increas-
ing tension put upon it which eventually limits such motion and causes the rotation
in the contrary direction.
The hand can therefore continue such to and fro rotation for any desired length of
time without material exertion.
In the arrangement at Fig. 3 the blade spring d is fixed to the frame at its middle,
while each end is connected by a link to one of two arms c fixed on diametrically
opposite sides of the fly wheel axis. The spring is in this case advantageously
arranged in a horizontal position and the connecting links can either be of wire, or
caoutchouc, or helical springs.

page_text: In the arrangement at Fig. 4 the spring & is formed as a spiral or volute, the one
end of which is fixed to the frame and the other to the fly wheel axis.
Dated this 15th day of September 1898.
ABEL & IMRAY,
Agents for the Applicant.
I, MAX HERZ, of I, Deutschmeisterplatz No. 2, Vienna, Austria, Doctor of Medicine,
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 oscillating or pendulum apparatus hitherto employed for medical gymnastics,
consists of a pendulum whose axis of oscillation is provided with a suitable operative
lever for setting it in motion.
These apparatus have the disadvantage that firstly a very long pendulum has to be
employed in order to obtain the necessary small number of oscillations per minute,
secondly that they have to be loaded with heavy weights, and thirdly that the
amplitude of the pendulum can only be small and consequently the motion can
only be effected through a comparatively small angle.
My present invention relates to a medical gymnastic apparatus in which the patent
imparts motion to a heavy body arranged symmetrically round a rotary axis, which
receives an impulse in the one direction by the end of the patient and in the
contrary direction by means of a spring acting in opposition to the first motion,
so that the patient can maintain the heavy body in motion without material
exertion and can at the same time obtain a considerably greater amplitude and
consequently also a greater angle of oscillation, such as up to 300°.
I will describe the construction of the apparatus with reference to the drawings
accompanying my Provisional Specification which shews several modifications of
the same.
Figs. 1 and 2 shew respectively a side view and front view of an arrangement in
which a heavy wheel a which can be loaded at two diametrically opposite points
with spherical or other weights a¹, is carried by an axis having fixed on it a
crank handle 61, and running in bearings in a suitable pillar frame, on which axis is
fixed a lever arm c that is connected by a link c¹ with the one end of a blade
spring d, whose other end is fixed at d¹ to the pillar frame.
The fly wheel is turned in one direction through a greater angle than 90°, by the
muscular action of the arm holding the handle 6 whereby the spring has an
increasing tension put upon it which eventually limits such motion and causes the
rotation in the contrary direction. The hand can therefore continue such to and fro
rotation for any desired length of time without material exertion.
In the arrangement at Fig. 3 the blade spring d is fixed to the frame at its middle,
while each end is connected by a link to one of two arms c fixed on diametrically
opposite sides of the fly wheel axis.
The spring is in this case advantageously arranged in a horizontal position and
the connecting links can either be of wire, or caoutchouc, or helical springs.
In the arrangement at Fig. 4 the spring d is formed as a spiral or volute, the one
end of which is fixed to the frame and the other to the fly wheel axis.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
1. Apparatus for medical gymnastics wherein a revolvable heavy body such as a, a¹,
is so connected to a spring such as d, that after receiving an impulse in one direction
by the hand of the operator it is brought back into its original position by the spring,
substantially as described.
2. Apparatus for medical gymnastics constructed and operating as herein described
with reference to the accompanying drawings.
1000
ABEL & IMRAY,
Agents for the Applicant.