Year: 1894

page_text: Around the central fixed post a', rotates the tube or ring b, which is connected
to the quadrilateral open frame e, by cross-pieces c.
At the corners of this framing are fitted at an angle of 45°, the vertical
standards n.
On these standards are the vertical strips r, which move up and down, and these
are connected to the standards n, by dovetails or other suitable connections.
At the bottom of each sliding strip r, is a small wheels, running on a circular
undulating rail of varying height, commonly known as a hill and valley railway.
To the beams e, the double armed levers v, are fastened, rotatively around pins 1 ;
and to the ends of these levers are fastened the boats or seats a.
These levers are so arranged that two lever arms always run over a strip r, and
are thus compelled to follow its movement. For this object the rails c, are used,
they being rotatively set with one end on the lever and the other end on the strip.
On the strips r, are fastened the rods o, connected to which are the guide rods 2,
provided with a spiral projecting rib a, forming a high flat-topped thread.
In the bottom of each boat is a nut y, which engages with the said thread, so
that on raising the same, the boat makes a rotary movement about the rod 2, it
being connected to the lever e, by the coupling 3. The rod 2, may be plain and in
this case no rotation of the boat will take place.
If now the ring b, and therewith the framing e, be rotated by steam or other
motive power the wheels s, run on the undulating railway m, and the strip r, will
move upwards and downwards on the standards n. The levers thus have a
swinging movement imparted to them and as the guide rods 2, make the same up
and down movements, as the strips r, the ends of the levers v, have a much greater
movement. The boats are thus raised on the rods 2, and by reason of the action of
the spiral thread they are caused to rotate.
This rotation also takes place on the descent of the lever v.
The undulating railway m, may however be dispensed with, and with this object,
as shewn in Fig. 3, four wheels s, which are rotatively fixed on the standards n,
and which run on a level rail are used. The strip r, is connected in this case to a
point s', of the wheels, by means of the bar g, and by means of this crank an
upward and downward movement of the strip ris obtained.
The standards n, are braced together and form a rigid frame.

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. In round-about swings in which the boats or seats hang on swinging arms,
and have by means of an undulating railway an upward and downward movement,
in addition to the circular motion; an arrangement by which the transmission of
the upward and downward movement to the swinging levers v, takes place by means
of vertical sliding strips r, which are connected by arms o, to vertical guide rods 2,
beneath the boats a, in order to obtain a rotary motion of the said boats on a
spiral rib or screw thread a formed on the vertical guide rod 2, by means of a
nut, y, on the said boat, engaging therewith said rotation occurring on the ascent
and descent of the boat.
2. An alternative arrangement to that described in Claim 1, by which the
undulating railway is dispensed with, and four wheels s, fixed to the standards",
run on a level rail or track by which arrangement through a crank movement the
strips r, receive an upward and downward movement corresponding to that obtained
by the undulating rail.
Dated this 13th day of December 1894.
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Patent Agent.