Improvements in Roundabouts.
Year: 1891

page_text: Date of Application, 17th Mar., 1891
Complete Specification Left, 17th Dec., 1891-Accepted, 17th Mar., 1892
PROVISIONAL SPECIFICATION:
Improvements in Roundabouts.
I, THOMAS WILLIAM TAYLOR POTTS, of 25 Gunter Grove, Chelsea
London, W. Engineer, do hereby declare the nature of this invention to be as
follows:-
My present invention, relates to, and consists of certain novel and useful
additions to the device comprising the invention.-"An Improved Roundabout "
patented by me; No. 8634 dated 12th of June 1888. In accordance with which
said invention, I have described and claimed a roundabout consisting essentially of
a series of pairs of jointed bars arranged around a central support, the adjacent
inner ends of each pair being jointed respectively to a collar fixed relatively to
the central support (so far as a longitudinal movement is concerned) and to a
collar or plate sliding on the said support, while the lowermost outer ends of such
pairs of bars are adapted to carry cars or the like, whereby when the adjacent
inner ends of such pairs of bars are moved towards each other the cars or the like
will be moved upwards and radially, relatively to the said support, and vice versa
when they are separated, substantially in the manner set forth in the said
Specification of my said Patent No. 8634 of 1888.
Now, in accordance with my present improvements, 1 proceed as follows,
reference being had to my previous Specification above referred to and identified.
That is to say-First :-To the lower end of the revolving central support of the
device comprising my said previous invention, I adapt a series of radiating arms
provided with track runners. To the outer ends of these radiating arms I connect
the several segments making up a circular revolving platform-the flooring of
which would preferably be of wood boards-having mounted thereon, imitation
horses or the like, in the manner of an ordinary roundabout:
Under the second head of my present invention; in lieu of the extensible frame,
referred to in the Specification of my previously cited Patent, composed of a series
of pairs of bars, jointed together at their centres and adapted to work in the same
manner as lazy tongs, I propose to adapt to the rotatable ring on top of the central
telescoping tube of the device referred to in the Specification of my previous
Patent and when it is caused to assume its lowermost position,-a series of fixed
radiating arms the outer ends whereof will have connected thereto, bars or carriers
at suitable distances apart; from each of which bars or carriers will be suspended
the imitation horses or the like. That is to say, provision is made at each of the
outer segmental spaces, comprised between each pair of radiating arms, for
mounting several riders. Said radiating arms with their attachments as above
described are supported by braces attached to the circular bracket on top of the
central vertical pole of the device described in the Specification of my hereinbefore
cited Patent and shewn in the drawings accompanying same.
Circular motion may, in accordance with my present improvements, be imparted
by substantially the same device as adopted by me in the case of my Patent
No. 863488 or otherwise, accordingly as may be determined by circumstances in
regard to available motive power and so forth.
D
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ד
1 1001
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, WC.,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Roundabouts.
I, THOMAS WILLIAM TAYLOR POTTS, of 25 Gunter Grove, Chelsea,
London, W., Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-.
"
My present invention, relates to, and consists of certain novel and useful
additions to the device comprising the invention.-"An Improved Roundabout
patented by me; No. 8634 dated 12th June 1888. In accordance with which said
invention, I have described and claimed a roundabout an essential feature whereof
comprises a series of pairs of jointed bars arranged around a central support,
each pair of bars being jointed at the centre in the same manner as lazy tongs.
The outer ends of each pair of bars being adapted to curry cars or the like,
whereby when the adjacent inner ends of such pairs of bars are moved towards
each other the cars or the like will be moved upwards and radially, relatively to
the said support, and vice versa when they are separated, substantially in the
manner set forth in the said Specification of my said Patent No. 8634 of 1888.
Now, in accordance with my present improvements, I proceed as follows,
reference being had to my previous Specification above referred to, and identified ;
and also to the accompanying 3 sheets of drawings. That is to say-First:-To
the lower end of the revolving central support of the device according to my said
previous invention, I adapt a series of radiating arms provided with track runners.
To the outer ends of these radiating arms I connect the several segments making
up a circular revolving platform-the flooring of which would preferably be of
wood boards having mounted thereon, imitation horses or the like, in the manner
of an ordinary roundabout.
Under the second head of my present invention; in lieu of the extensible frame,
referred to in the Specification of my previously cited Patent, composed of a series
of pairs of bars, jointed together at their centres and adapted to work in the same
manner as lazy tongs, I propose to adapt to the rotatable ring on top of the central
telescoping tube of the device referred to in the Specification of my previous
Patent, and when it is caused to assume its lowermost position, a series of fixed
radiating arms, the outer ends whereof will have connected thereto, bars or carriers
at suitable distances apart; from each of which bars or carriers will be suspended
the imitation horses or the like, shown in Sheet 2.
Referring to the accompanying sheets of drawings, Sheets 1 and 2 are sectional
elevational views illustrative of my said invention, and, referring to Sheet 3,
Figure 1 is a plan view to a reduced scale looking on top of the device complete,
according to my invention; Figures 2 to 9 inclusive (Sheet 3) being detail views
hereinafter identified and described.
In Sheet 1, I have (merely by way of illustration and comparison between my
former, and my present invention) reproduced, as shewn, at the upper part of the
drawing, the extensible frame herein before referred to as forming a salient feature
in my said former invention No. 8,6348. The improvements under the herein
before referred to first head of my present invention being indicated by the
following letters and numerals. That is to say, in Sheet 1 A, the series of
radiating arms at the lower end of the revolving central support B, the track
runners, C. the circular revolving platform having mounted thereon, say imitation
horses or the like (in the manner of an ordinary roundabout) the location of these
latter being indicated by the numerals 1, 2, 3, 4, 5, 6.
In Sheet 2, I have illustrated the arrangement which I adopt under the second
head of my said present invention, in accordance with which as hereinbefore stated,
I may dispense with the circular revolving platforin C. (Sheet 1) and adopt in
lieu thereof the herein before referred to series of radiating arms D adapted to the

page_text: rotatable ring E when caused to assume its lowermost position. D indicates the
bars or carriers referred to above which are arranged at suitable distances apart.
and having suspended thereto as shewn (Sheet 2) imitation horses or the like so
as to carry several riders.
Said radiating arms with their attachments as above described are supported by
braces F attached to the circular bracket on top of the central vertical pole of the
device described in the Specification of my hereinbefore cited Patent and shewn
in the drawings accompanying same.
Circular motion may in accordance with my present improvements, be imparted
by substantially the same device as adopted by me in the case of my Patent
No. 863488 or otherwise, accordingly, as may be determined by circumstances in
regard to available motive power and so forth, and so also in reference to the
hydraulic devices for raising and lowering the rotating portion of the device
carrying the cars, imitation horses or the like.
In further reference to Sheet 3 the detailed views to an enlarged scale, Figures 2
3 and 4 are appended with a view of illustrating (Sheets 1 and 2) a convenient.
arrangement which may be adopted for securing the awning and also the guy rope
attachments (Figure 4) at G Sheet 1.
Figures 5 and 6 are detailed detached views taken at the top H and H' Sheet 1
and base I respectively of the apparatus of a convenient arrangement a a¹ b and c
which may be adopted for hoisting and lowering the awning by means of the
winch L. The detailed views Figures 7 and 8 are sectional elevation and plan
views respectively taken at the base I of the central portion of the apparatus
shewing a part of the working gear for ensuring the circular motion.
Figure 9 is a detail view at K Sheet 1 of a convenient arrangement which may
be adopted for packing the hydraulic cylinder at falso as shewn at g, an outlet to
allow of the escape of the water in the event of the ram having been extended
beyond the proper point all as set out and for the objects explained in the
Specification of my prior Patent above referred to.
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 :-
First In roundabouts the improvements substantially as herein described and
set forth.
Second In roundabouts the series of radiating arms provided with track
runners carrying the revolving platform having mounted thereon imitation horses
or the like in the manner of an ordinary roundabout as herein set forth.
Third The herein before referred to (under the second head of my invention)
radiating arms adapted to the rotatable ring on top of the central telescoping tube
of the device provided with carriers at suitable distances apart for the suspension
thereto of imitation horses or the like substantially as herein set forth.
Dated this 16th day of December 1891.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, Agent for Applicant.