Year: 1887

page_text: Date of Application, 15th Nov., 1881
Complete Left, 3rd Apr., 1888
Complete Accepted, 25th May, 1888
RESERV
I, THOMAS COUSSINS LIDSTER Pattern Maker No. 73 Buckingham Street
Holderness Road Hull Yorkshire do hereby declare the nature of my invention to be
as follows :-
A disk with spindle through centre with ball on lower end of spindle working
in a cup the said disk working on the edge of a ring or tube to lift and drop to be
driven by a horizontal geared wheel with driving bracket attached which gives to disk
a rolling wave notion which can be increased or diminished by lifting or dropping
tube or by lifting or dropping cup or ball bearing which gives to disk the same motion
as above when the cup is dropped the disk will be horizontal when lifted disk will be
placed at a declivety thereby shortening the rolling circle of the disk on tube giving
the disk more lift and more speed.
D: Nombor 1907

page_text: I, THOMAS COUSSINS LIDSTER No. 73 Buckingham Street, Holderness Road Hull
Yorkshire, Pattern Maker, 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 object of my Invention is to apply an undulatory or wave motion to a round-
about, so that the occupants of boats, or seats attached thereto, may be subjected to a
motion analogous to that produced by the waves of the sea, the degree of said motion
being varied at will.
In order that my Invention may be the better understood I have appended the
accompanying two sheets of drawings, in which Figure 1 represents an elevational
view of the device or contrivance according to my Invention, and Figure 2 a part
sectional plan of the same on line A B Figure 1; Figure 3, represents a sectional
elevation, and Figure 4 a top plan of the device with with the disc, hereinafter
referred to, removed, corresponding parts being indicated by similar letters of
reference throughout the several views.
In carrying out my Invention I employ a disc, A attached to a central spindle or
shaft B, the lower extremity of which is provided with a spherical termination C
Figure 3 arranged to work within a suitable divided cup D, forming a "ball and
socket joint." The lower edge a Figure 3 of the disc A bears upon the edge of a
circular tube E arranged to fit freely within the framing F. The disc A and central
spindle B are driven by a horizontal geared wheel G, to the upper part of which is
attached a hollow shell H, provided with a slot s with a sliding bearing, so that the
combined elliptical and circular motion of the disc may be fully compensated.
The horizontal geared wheel G is driven by a pinion P, to which motion is
transmitted by means of the shaft S and mitre or bevil wheels K or any suitable
method of transmitting motion. The shell H is provided with vertical rollers I,
bearing against the inner surface of the circular tube E. Two spiral springs r serve
to balance the weight of the boats or other form of vehicle for carrying passengers,
when such vehicles are at the lowest part of the wave motion. Bars or beams, L are
adapted radially in the disc A, to the free extremities of which are attached or
suspended the boats or other form of vehicles above mentioned.
It is evident that a regular wave motion may be obtained by the combined revolution
of the disc A around its central spindle B, and the circular motion of the disc around
the edge of the tube E, the degree of motion being varied by raising or lowering the
tube E; for instance, when the tube E is raised to its full extent, as shown by the
dotted lines Figure 3, the disc. A has a circular movement only in a horizontal
plane. It follows therefore that the raising or lowering of the tube E will vary the
degree of the undulatory or wave motion, and I prefer to accomplish this either by
means of a screw jack or equivalent method of conserving power or by means of a
worm O Figures 1 and 2 acting upon an annular worm tube arranged under the

page_text: tube E, and provided with an angular lift so as to allow of the raising or depressing
of the tube, according to the motion it is desired to obtain.
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 and other analogous contrivances for recreational purposes
the mode of and means employed for imparting a motion to boats or other form of
vehicles similar to that of the waves of the Sea substantially as herein described and
set forth.
Second-In the improved roundabout herein described the employment of a
vertical shaft B, working in a ball and socket joint C, and carrying a disc A
substantially as and for the purposes herein set forth.
Third: In a roundabout the employment of an inner shell, the edge of which
forms a rail or path for the travel of the disc referred to in the preceding claims, and
the methods of raising or lowering the same for the purpose of varying the degree of
undulatory or wave motion substantially as herein set forth.
JAMES STEVENSON,
Gray's Inn Chambers,
20, High Holborn, London, W.C.,
Agent for Applicant.
Dated Gifs inftieth day of Barcu 1000.
JAMES STEVENSON,
Gray's Inn Chambers,
20, High Holborn, London, W.C.,
Agent for Applicant.