Year: 1892

page_text: Date of Application, 12th Apr., 1892
Complete Specification Left, 25th June, 1892-Accepted, 30th July, 1892

page_text: If now one of the arms m of the wheel-frame of a seat f, (in the position of the
switch tongue shewn in Fig. 9) strikes against the body n, the said arm m will as
the seat advances push the body n and with it the switch tongue into the position
such that the next following seat shall pass from the section II, Fig. 9, in to the
section II II, the point of the switch moving from one extreme position into the
other. In this manner the spindles f¹ and consequently the seats f connected
therewith, are caused to pass alternately to the adjacent platform.
When seat-carrying-frames are provided without arms m, they cannot move the
switch tongue, and the seats then assume a course such as is allowed by the position
of the switch for the time being. In this manner the movement of the seats can be
a rotary movement or a serpentine movement as desired. The sides of the con-
centric recesses in the floor a prevent the seats when rotating from bending out
by reason of centrifugal action. The spindles f' are guided on the concentric
inner sides of the floor by means of friction rollers. The platforms may, in addition
to seats, be provided with seats p which are fixed and arranged in the middle, and
which in consequence also rotate, or with other seat frames g, which are arranged
between the seats located at the periphery, and therefore rotate only about the
centre of the platform to which they are attached.
The roundabout illustrated in Fig. 11, differs from that shewn in Fig. 1, in that
both the floor a' and the platforms are arranged at an inclination, so that the
seats executing their serpentine movement have in addition to said serpentine
movement an ascending and descending motion.
Figs. 12 and 13 show another construction of the roundabout with upper driving
mechanism and in which the platforms have a planet motion, that is to say, they
have, in addition to their rotation about their own axes, also a rotation about the
central axis of the roundabout.
In this case the platforms 2 of which 6 are shewn, are driven by means of rope
or belt gearing from the driving apparatus d2 (which is arranged in the middle of
the roundabout) and by means of belt or chain gearing and a central drum r;
which latter actuates the drums s on the platforms 62 and thus rotates the latter.
Furthermore, the roof u of the roundabout suspended from the shaft t, is carried
along by the drum so that the platforms have also, in addition to their rotation
about their own axes, a rotation about the shaft t which serves as an axis, that is
to say, they have a planet motion. In consequence, seats which are suspended
centrally on the platforms 6 move forward in a circle, the centre of which is
constituted by the shaft t.
The platforms 12 may be provided with such a number of notches or recesses
that the seats can execute as desired a serpentine movement or rotary movement.
There can also be imparted to the seats 7, in addition to the movements provided
for here, also an up and down or galloping motion which is transmitted in a known
manner from the motion of the platforms. Instead of a uniformally inclined floor a,
the platforms may be caused to rotate at various inclinations with relation to one
another, so that there is imparted an up and down movement to the seats arranged
at the circumference of the platforms.
Dated this 12th day of April 1892
F. BOTHMANN,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improvements in Roundabouts.
I, FRITZ BOTHMANN, of Langensalzaerstrasse 12, Gotha, Germany, Maker of 50
Roundabouts, 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 roundabouts in which either all or certain seats or

page_text: can be
groups of seats have a serpentine motion imparted to them. This notion can take
place in horizontal planes and it may be upon suitable platforms; it
combined with a circular motion in such a manner that the seats shall alternately
have a serpentine movement and a circular movement; furthermore the roundabouts
can be constructed in such a manner that the seats, in addition to the circular or
serpentine motion, may also have a progressive rotary movement about a common
central axis.
Referring to the drawings filed with my Provisional Specification
Fig. 1 is a longitudinal vertical section of a rilaboat according to this
invention with horizontally rotating platforms, in which the seats hve pictly a
serpentine movement and partly a rotary movement, al in h the platforms
while rotating about their own axes, do not rotate about the axis of the round-
about.
Fig. 2 is a half plan of Fig. 1 with the rotating platforms; and
Fig. 3 is a horizontal section on the line A A Fig. 1, illustrating the arrange-
ment of the switches employed for effecting the serpentine motion of the seats.
Figs. 4 to 8 inclusive illustrate to a larger scale, the arrangements for guiding the
seats on the platforms and on the running rails, and also illustrate the arms for
moving the switches.
Fig. 4 being a vertical section through the rear running wheel of the seat;
Fig. 5 a side elevation ;
Fig. 6 a vertical section on the section line C C, Fig. 5;
Fig. 7 a horizontal section on the line D D, Fig. 4. illustrating the manner in
which the seats are carried along by the rotating platforms; and
Fig. 8 a horizontal section on the line EE Fig. 5 illustrating the jointed
connection of the running wheels of the seat.
Figs. 9 and 10 show in plan and in side elevation respectively, the arrangement
of the switches employed in the improved roundabouts.
Upon the floor of the roundabout are arranged any suitable number of plat-
forms (in the example illustrated there are four) each caused by suitable means,
such as a motor d to rotate about its own axis c. The platforms have imparted
to them a motion such that adjacent platforms rotate in opposite directions as
shewn by the arrows in Figs. 2 and 3. The platforms are provided at their
peripheries with a certain number of recesses e in which the spindles f¹ of the
seats engage. Horses, or cars or other carriages, can be employed as seats. The
spindles are supported by means of two arms (Fig. 5) which join together the
running wheels h which run in suitable circular guides k on the lower floor .
The spindles fare held and guided in a circular manner partly by the platforms >>
and partly by the floor a which is formed with recesses concentric with the plat-
forms b. At the adjacent points of each two floors towards the direction of
motion of the platforms there are arranged switch tongues which are operated by
arms m on the running wheels of the seats in the following manner :-The arms m
extend down to the raised portions n of the switch tongues and in their forward
movement brush along the latter. The switch tongues are capable of turning
movement about pins o. The raised portions n are situated at the rear side of the
switch tongues, so that the latter form two-armed levers.
If now one of the arms m of the wheel-frame of a seat f, (in the position of the
switch tongue shewn in Fig. 9) strikes against the body n, the said arm m will,
as the seat advances, push the body n and with it the switch tongue into
such a position that the next following seat will pass from the section I I, Fig. 9
into the section II II, the point of the switch moving from one extreme position
to the other. In this manner the spindles f, and consequently the seats f
connected therewith, are caused to pass successively from one platform to the
adjacent platform.
When seat-carrying-frames are provided without arms m, they cannot move the
switch tongue, and the seats then assume a course such as is allowed by the
position of the switch for the time being. In this manner the movement of

page_text: the seats can be a rotary movement or a serpentine movement as desired. The
sides of the concentric recesses in the floor a prevent the seats when rotating,
from bending out by reason of centrifugal action. The spindles f¹ are guided on
the concentric inner sides of the floor by means of friction rollers. The platforms
may, in addition to seats f. be provided with seats p secured to them in the middle
(and which in consequence also rotate) or with other seat frames g, which are
arranged between the seats located at the periphery, and therefore rotate only
about the centre of the platform to which they are attached.
The roundabout illustrated in Fig. 11, differs from that shewn in Fig. 1, in that
both the floor a' and the platforms are arranged at an inclination, so that the
seats whilst executing their serpentine movement have in addition to the said
serpentine movement, an ascending and descending motion.
Figs. 12 and 13 show another construction of the roundabout with upper driving
mechanism and in which the platforms have a planet motion, that is to say, they
have, in addition to their rotation about their own axes, a rotation about the
central axis of the roundabout.
In this case the platforms 3, of which six are shewn, are driven by means of
rope or belt gearing from the driving apparatus d', which is arranged in the middle
of the roundabout, and by means of belt or chain gearing and a central drum r,
which latter actuates the drums s on the platforms 62 and thus rotates the latter.
Furthermore, the roof u of the roundabout which is suspended from the shaft t, is
carried along by the drum so that the platforms 2 have also, in addition to their
rotation about their own axes, a rotation about the shaft t which serves as an axis,
that is to say, they have a planet motion. Consequently seats which are carried
centrally on the platforins & move in a circle, the centre of which is constituted by
the shaft t.
The platforms may be provided with a number of notches or recesses e so that
the seats can execute as desired a serpentine movement or rotary movement. There
can also be imparted to the seats f, in any convenient manner in addition to the
movements provided for here, an up and down or galloping motion from the motion
of the platforms. Instead of being arranged at the same inclination as shewn at
Fig. 11, the platforms may be caused to rotate at various inclinations to one
another, so as to impart an up and down movement to the seats.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A roundabout in which circular platforms that rotate about their own axes
impart movement to seats in such a manner that they are conveyed successively
from one platform to the next, the adjacent platforms being arranged to rotate in
opposite directions to one another and either in the same or in different planes
substantially as described.
2. A roundabout of the kind referred to in Claim !, in which the several plat-
forms in addition to rotating about their respective axes, also rotate about a common
axis substantially as described.
3. In a roundabout of the kind specified in Claim 1, the arrangement of switch
tongues adapted to be operated by arms m on the carrying frames of the seats,
for the purpose of guiding the seats from one platform to the next substantially as
described.
4. Roundabouts constructed arranged and operating substantially as herein-
before described with reference respectively to and shewn in Figs. 1 to 10
inclusive, in Fig. 11, and in Figs. 12 and 13 of the drawings for the purposes
specified.
J
T
1000
F. BOTHMANN,
By L. W.. per F. B.