An Improved Combination Bogie or Car for Use on Switchback Whirligigs, or Roundabouts, whereby Different Motions are Obtained.
Year: 1894

page_text: Date of Application, 16th Jan., 1894
Complete Specification Left, 16th Oct., 1894-Accepted, 16th Jan.,
1895
PROVISIONAL SPECIFICATION.
An Improved Combination Bogie or Car for Use on Switchback
Whirligigs, or Roundabouts, whereby Different Motions are
Obtained.
I EDWARD ALEXANDER ANDERSON, Boilersmith by trade, of No. 5 Ravens-
worth Terrace, Roker Avenue, Sunderland, in the County of Durham do hereby
declare the nature of this invention to be as follows :-
The lower bogie, or that which runs round on the track, to be constructed of
framework, and having upon its upper surface, two curved pieces of metal with
teeth in the same. Upon this bogie, a car is placed, having upon its under side,
two curved pieces of metal similar to those on the bogie and resting, or working
upon each other, forming rockers. While the bogie is running round upon the
track, a rocking motion (in the direction of the track) is given to the car, by means
of a cam, or crank, driven off the axle of one of the bogie wheels, and arranged to
work so that the car is practically in a level position as the bogie is ascending or
descending the banks of the switchback track. The rockers on the upper side of
the bogie, and the underside of the car, might be dispensed with if desirable, and
the car be made to rise and fall on an axle fitted across the centre of the bogie top.
This car is to be provided, or, can be provided, with a seat at each end, for the
accomodation of people. In the centre of the car that is placed upon the bogie, a
space is formed, in which a circular car is fitted, and this car, caused to rotate, by
means of a vertical shaft, and an arrangement of wheels. This rotary motion is, or
can be alternated, or reversed with the several circular cars; or in other words,
one circular car can be made to rotate from right to left, and the following car, left
to right, and at such a speed as thought desirable.
By the use of this combination car, additional motions are derived (to those at
present obtained) such as ;-the rocking motion from the car which is placed upon
the bogie; and the rotary motion of the circular car, which is fitted within the car,
that is placed upon the bogie.
Dated this Fifteenth day of January 1894.
COMPLETE SPECIFICATION.
An Improved Combination Bogie or Car for Use on Switchback
Whirligigs, or Roundabouts, whereby Different Motions are
Obtained.
I, EDWARD ALEXANDER ANDERSON, Boilersmith by trade, of 5 Ravensworth
Terrace, Roker Avenue, Sunderland, in the County of Durham 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 "combination bogie or car'
" is constructed and worked according to the
following description:
11
The lower bogie a, or that which runs round in direct contact with the switch-
back track, is to be constructed of framework, so arranged as to suit the mechanical

page_text: arrangement for working the car. Across the centre of this bogie, on the upper
side, is fitted an axle c, to which, the middle, or rocking car 6 is connected, so as to
be able to rock, or to rise and fall as the bogie is ascending, or descending the
banks, the rise and fall being to such an extent that the middle car is always in a
level position. In the centre of this car is formed a space, in which a circular car d
is fitted capable of having a rotary motion imparted to it. Having now described
the manner in which the combination car is built, the following explanation will
detail the manner in which the motions are obtained :-In the centre of one of the
axles A. Figs. 1 & 2 on the underside of the bogie, a worm is formed, by which,-
as the bogie is drawn round the track,-a pinion B attached to one end of a short
shaft is set in motion. To the opposite end of this shaft is fitted a bevelled cog
wheel C, which works (directly) another bevelled cog wheel D of the same size and
fitted to another short shaft placed at right angles to the first mentioned shaft. On
the back of this second cog wheel is formed a pin E, which pin, during a revolution
of the cog wheel, works as a crank. To this pin is fitted one end of a connecting
rod F, the other end being attached to the underside of the middle, or rocking
car G or b; by this arrangement the rocking motion is obtained, and imparted to
the middle car. The circular car (which is fitted within the rocking car) is made
to revolve as follows:-A vertical shaft H (Figs. 1 & 3) of square section, is fitted
up thro' the centre of the car, and passes thro' a collar or box (which is fixed to
the car) having a square hole thro' it of such a size as to suit the shaft. At the
upper end of this shaft is fitted a pinion wheel J, in such a manner, that the wheel
while revolving, and imparting the motion to the shaft, will also allow the shaft to
slide up and down thro' it. This pinion wheel is caused to rotate by a worm K
formed on the end of an overhead, horizontal shaft, and which shaft itself is caused
to revolve by means of a bevelled cog wheel L fitted at the other extremity. This
bevelled cog wheel is, in turn fitted to work in another bevelled cog wheel M which
is fixed to the upright post in the centre of the track. On the driving engine being
set in motion to draw the cars round the track, the cog wheel at the end of the
horizontal overhead shaft is caused to rotate by working in the fixed cog wheel, and
so by the aid of the worm and pinion at the opposite end of this shaft, the
rotary motion is communicated to the circular car. The lower end of the vertical
shaft being fitted and formed to work in a ball bearing N formed inside of the
rocking car.
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 1
claim is :-
-1st. The rocking motion which is imparted to the middle or rocking car, in the
manner described.
2nd. The rotary motion which is imparted to the circular car, in the manuer
described.
Dated this Fifteenth day of October 1894.
EDWARD ALEXANDER ANDERSON.