Improvements in Portable Revolving Stools.
Year: 1889

page_text: Date of Application, 19th Feb., 1889
Complete Specification Left. 18th Oct.. 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Portable Revolving Stools.
I, THOMAS COLCLOUGH WATSON, of Cliff House, Dovercourt, in the County of
Essex, Member of the Institution of Civil Engineers do hereby declare the nature of
this invention to be as follows:-
The object of this invention is to produce a revolving stool, specially applicable for
fishermen, sportsmen, and others, which can be easily taken to pieces, and packed in
a case and transported from place to place.
According to this invention, I construct the stool with two horizontal parallel discs
and into the under side of the lower disc I screw the legs. The bottom of the legs
are spiked and provided with flanges to prevent them sinking into marshy or other
soft ground. In the top side of the said lower disc, I place friction rollers. The
upper disc which forms the seat and may be cushioned if desired rests on the
peripheries of these friction rollers, and rotates on a spindle formed upon the under
side which said spindle passes through a circular aperture in the lower disc, and is
secured by a pin taking into a transverse aperture in that part of the spindle which
is beneath the lower disc when in position.
Datad this 10th day of February 1889
«
CASTLE SMITH,
Per F. W. Golby,
Invention" Office, 54, Fleet Street, London, E.C., Agent for the Applicant.
COMPLETE
SPECIFICATION.
Improvements in Portable Revolving Stools.
I, Thomas ColclOUGH WATSON, of Cliff House, Dovercourt, in the County of
Essex, Member of the Institution of Civil Engineers, 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 this invention is to produce a revolving stool specially applicable for
fishermen, sportsmen, and others, which can be easily taken to pieces, and packed in a
case and transported from place to place.
According to this invention, I construct the stool with two horizontal parallel discs
and into the under side of the lower dise I screw the legs. The bottom of the legs.
are spiked and provided with flanges to prevent them sinking into marshy or other
soft ground. In the top side of the said lower disc I place friction rollers. The upper
disc which forms the seat and may be cushioned if desired, rests on the peripheries
of these friction rollers, and rotates on a spindle formed upon the under side, which
said spindle passes through a circular aperture in the lower disc, and is secured by a
pin taking into a transverse aperture in that part of the spindle which is beneath the
lower disc when in position.
And in order that my invention may be more fully understood and carried into
practice, I will now proceed to describe the same with reference to the accom-
panying drawings in which similar letters are used to indicate corresponding parts
throughout.
Figure 1 is an elevation of a portable revolving stool constructed in accordance
with my invention; Figure 2 is a plan of the under side of the revolving seat A ;
Figures 3 and 4 are respectively top and bottom plans of the lower disc; and
Figure is a partly sectional elevation shewing the parts detached from each other
ready for packing for purposes of transport. Figures 2 to 5 are all drawn to an
enlarged scale

page_text: The spikes B are firmly secured in any suitable manner to the bottom of the legs C.
The flanges are preferably formed upon the spikes B, but they may be cast
separately and affixed to the spikes or directly to the legs C. The tops E of the legs
are screw threaded and take into correspondingly threaded apertures F in the lower
disc G. A central circular aperture H is formed in this disc G through which passes
the spindle J fixed to the revolving seat A. This spindle is of slightly smaller
diameter than the central aperture H so as to pass easily therethrough and is
sufficiently long to protrude beneath the under side of the lower disc G, as shewn in
Figure 1. The protruding portion is provided with a transverse slot K through
which a pin I may be passed to keep the seat A in proper position and to allow it to
freely. revolve on the lower disc G. The pin L is preferably attached to the spindle J
by incans of a cord, chain, or the like O to prevent the pin from being mislaid see
Figures 1, 2 and 5.
In the accompanying drawings, the seat is shewn provided on its under side with
friction rollers M which revolve on a metal plate or ring N secured to the top surface
of the disc G, but this arrangement may be reversed, .e. the friction rollers may be
secured on the top of the disc G, and the metal plate or ring N secured to the
underside of the seat. The friction rollers M are held in position in any suitable
manner preferably I use a metallic plate or ring P and from the necessary bushes or
bearings therein by stamping, blocking, or casting, or I affix them after they are
made to the said plate or ring P in proper position so that the axes of the friction
rollers shall be radial. 1 then place the rollers in their bearings on the said plate
or ring P which I screw or otherwise rigidly affix to the underside of the seat A or
to the top side of the disc G as desired.
When the stool is standing on the ground, the spikes B will enter the soil, and
the flanges will prevent the said spikes sinking too far into marshy or other soft
ground. The legs and disc G will then be firm and stationary. The person sitting
on the seat A can however easily rotate the same in a horizontal plane by pressing
his feet on the ground and turning his body in the desired direction. This will
cause the friction rollers M to run round on the fixed metallic plate or ring N, the
spindle J of the seat A meanwhile turning round in the central aperture Ĥ of the
fixed disc G, and carrying with it the transverse pin L.
To take the stool to pieces for packing purposes, it is only necessary to remove
the pin L from the transverse aperture K and then to lift the seat A clear of the
disc G, the spindle J, cord O, and pin L passing through the central aperture H in
the said disc G as shown in Figure 5. The legs can each be unscrewed from the
disc G, and the legs, disc and seat packed away in a case or bag.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declaro that what I
claim is :-
(1) The construction and use of a stool, in which the seat A revolves by means of
friction rollers, or their equivalents M, over a fixed disc G into which the legs C are
screwed, the said seat being detachable from the disc and provided with a central
spindle J passing through a central aperture H in the disc, and with suitable means
such as the pin L and transverse aperture K for maintaining the seat in position
on the disc, substantially in the manner and for the purpose herein before set forth
and illustrated in the accompanying drawings.
(2) My improved portable revolving stool constructed and operating substantially
as described and illustrated.
GOOT 1200220
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C., Agent for the Applicant.