improvements in revolving seats.
Year: 1898

page_text: Date of Application, 6th May, 1898
Complete Spanifinating Loft 1ot Fab 1900 Accented
Ath Man
1800
improvements in revolving seats.
I, CHARLES RICHARD SKINNER, of 30, Greenfield Road, Tottenham, in the
County of Middlesex, Furniture Warehouseman, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in revolving seats of the kind wherein
the height of the seat can be adjusted by turning it and is especially applic-
able to music stools.
In such seats as hitherto generally constructed, the seat is practically only
supported by the central screw (except when in its lowermost position) and as
a consequence it has the objection of soon becoming rickety or of losing rigidity
and also of being very liable to get out of order.
Now according to my invention, my revolving seat is permanently connected
at its outer part to the legs of the stool or chair, the said legs being made teles-
copic so that they are lengthened or shortened as the seat is raised or lowered.
The invention may be carried out in various ways and I have found the follow-
ing to answer well in practice. The underside of the seat is formed or provided
with a circular bearing or race adapted to receive a ring or plate fixed to the
sliding lengths of the telescopic legs. The seat is provided with the usual screw
working in a nut in the usual manner.
By this arrangement it will be obvious that as the seat is revolved it will
be raised or lowered in the usual manner, moving with it the sliding lengths
of the telescopic legs so that to whatever position it may be adjusted the outer
portion of the seat will always be directly supported by the legs so as to be held
rigid thereby.
It will be obvious that rollers or balls may be used to diminish friction between
the rubbing parts, and that the telescopic legs may be provided with springs if
found desirable.
Improvements in Revolving Seats,
I, CHARLES RICHARD SKINNER, of 30, Greenfield Road, Tottenham, in the
County of Middlesex, Furniture Warehouseman, do hereby declare the nature
[Price 8d.]

page_text: of this invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement:-
This invention relates to improvements in revolving seats of the kind wherein
the height of the seat can be adjusted by turning it, and is especially applic-|
able to music stools.
In such seats as hitherto generally constructed, the seat is practically only
supported by the central screw (except when in its lowermost position) and as
a consequence it has the objection of soon becoming rickety or of losing rigidity
and also of being very liable to get out of order.
Now, according to my invention, my revolving seat is permanently connected
at its outer part to the legs of the stool or chair, the said legs being made teles-
copic so that they are lengthened or shortened as the seat is raised or lowered.
The invention may be carried out in various ways and I have found the follow-
ing to answer well in practice. The underside of the seat is formed or provided
with a circular bearing or race adapted to receive a ring or plate fixed to the
sliding lengths of the telescopic legs. The seat is provided with the usual screw
working in a nut in the usual manner
By this arrangement it will be obvious that as the seat is revolved it will
be raised or lowered in the usual manner; moving with it the sliding lengths
of the telescopic legs so that to whatever position it may be adjusted the outer
portion of the seat will always be directly supported by the legs so as to be held
rigid thereby.
It will be obvious that rollers or balls may be used to diminish friction between
the rubbing parts, and that the telescopic legs may be provided with springs f
found desirable.
In the accompanying drawings:-
,
Figure 1 is a sectional elevation of a revolving music stool made according to
the invention :
Figure 2 is a section on the line 2-2 Figure 1:
Figure 3 is a view similar to Figure 1 of a modified construction of stool;
and
Figures 4 and 5 are respectively sections on the lines 4-4 and 5-5 Figure 3.
a is the seat which is upholstered in the usual manner and b is the central
screw-threaded spindle by means of which the seat a is raised or lowered when
revolved in the ordinary manner, the said screw-threaded spindle 6 working in
a nut b¹ in a hollow central support c.
d, d are the hollow fixed lengths of the legs of the stool or chair, the said
hollow legs being connected by cross bars e, e to render the whole rigid. f, f
are the telescopic or sliding lengths of the legs, the said sliding parts of being
adapted to telescope in the hollow legs d, d so as to rise and fall with the seat a
thereby rigidly supporting the said seat in any position.
Referring now to the arrangement illustrated in Figures and 2 the sliding
lengths f, f of the legs are connected at their upper ends to a ring g which is
provided with a number of balls gl adapted to run upon a circular race h formed
on the underside of the seat a, the ring g being held in position in the race h
by two concentric rings i, i fitted to the underside of the seat a. With this
arrangement it will be obvious that the seat a when rotated is raised or lowered
through the medium of the screwed spindle 6 in the usual manner and that the
sliding lengths f, f of the legs will also be raised or lowered with the seat by
the ring g, so that the said seat is rigidly supported both centrally by the screw
and at the outside by the legs in any position, to which it may be turned.
In the construction shewn in Figures 3, 4 and 5 the sliding lengths f, f of
the legs, instead of being secured to a ring working in the underside of the seat a,
are connected at their upper ends by cross bars f¹, f¹ to the central screwed
epindle 6 and each of the said sliding parts is provided at its upper end with a
ball (or a roller) the said balls j, j (or rollers) bearing against and running upon

page_text: a circular race h fitted to the underside of the seat a. It will be obvious that
the balls or rollers can be dispensed with if desired.
The action of a stool constructed in this manner is similar to that of the seat
above described, the sliding parts f, f of the legs rising and falling with the
seat so as to rigidly support the latter in any position to which it may be
adjusted.
The legs may obviously be made of metal, wood or any other suitable material;
in the case of wood I advantageously provide for the telescopic legs inner linings
of metal.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is
-
1. In a revolving seat of the kind having a central screw, the employment
of a number of telescopic legs adapted to rise and fall with the seat so as to
support the same rigidly in any position, substantially as hereinbefore described.
2. A revolving stool comprising a revolving seat, a central screw working in
the usual nut, and a number of telescopic legs the lower parts of which are
rigidly secured to the frame carrying the nut and the upper sliding parts of
which are connected to a ring adapted to turn in the underside of the seat, sub-
stantially as herein before described.
3. A revolving stool comprising a revolving seat having a central screw
adapted to turn in the usual nut and a number of telescopic legs, the lower
fixed parts of which are rigidly secured to the frame carrying the said nut and
the upper sliding parts of which are connected to the screw and bear against
and support the underside of the seat, substantially, as herein before described.
4. The combination and arrangement of parts forming the improved revolving
seat, herein before described and illustrated in Figures 1 and 2 of the accom-
panying drawings.
5. The combination and arrangement of parts forming the improved revolving
seat, herein before described and illustrated in Figures 3, 4 and 5 of the accom-
panying drawings.
aved
the 1st day of February 1899.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.