also Applicable to Adjustable Chairs and other Seats.
Year: 1886

page_text: also Applicable to Adjustable Chairs and other Seats.
I, JAMES SIMPSON of 559 Sauchiehall Street, Glasgow, in the County of Lanark,
North Britain, Pianoforte seller do hereby declare the nature of this invention to
be as follows:-
This Invention, which relates to improvements in music stools, the said improve-
ments being also applicable to adjustable chairs and other seats, bas especial
reference to that class of seats or stools which are capable of being raised or
lowered by means of a vertical screw, and has for its object to better secure the
seats to such vertical screws.
In a music or other similar stool constructed according to this Invention, the
vertical screw and nut are constructed in the ordinary well-known manner, the
screw being formed on a shaft the periphery of the upper part of which is plain or
cylindrical. At the upper part of the stand of the stool there is secured a vertical
metal cylinder which extends downward into the stem of such stand and the
interior of which is bored out to fit the before mentioned vertical screw shaft.
The outside of this cylinder is truly turned to allow a socket to rotate smoothly
and move vertically up and down. To this last mentioned socket there are secured
two, three, four or more arms extending outwards and the upper ends of which are
provided with flanged plates or their equivalents by means of which the said arms
are secured to the underside of the seat.
In place of securing a metal cylinder to the stand of the stool in the manner
hereinbefore described, the upper part of the stand itself may be turned so as to
constitute the necessary cylindrical slide or support; or, in place of forming the
metal, or, as last described, wood slide cylindrical, this said part may be threaded
with a screw corresponding in pitch with the inner screw and being engaged with
by the surrounding socket, the interior of which is correspondingly screw-threaded.
It is to be understood that in place of securing the inner vertical or ordinary
screw to the underside of the seat, the said screw may be rigidly supported in the
stand of the stool under which arrangement a screwed socket provided with arms
in a manner somewhat similar to that herein before described is secured to the
underside of the seat, and engages with the last referred to vertical screw; or, this
last described arrangement may be used in conjunction with the inner vertical or
ordinary screw.

page_text: also Applicable to Adjustable Chairs and other Seats.
I, JAMES SIMPSON of 559 Sauchiehall Street, Glasgow, in the County of Lanark,
North Britain, Pianoforte seller, 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 Invention which relates to improvements in music stools, the said improve-
ments being also applicable to adjustable chairs and other seats has special
reference to that class of seats or stools which are capable of being raised or
lowered by means of a vertical screw and has for its object to better secure the
seats to such vertical screws.
In a music or other similar stool constructed according to this Invention the
vertical screw and nut are constructed in the ordinary well known manner the
screw being formed on a shaft, the periphery of the upper part of which is plain
or cylindrical. At the upper part of the stand of the stool there is secured a
vertical metal cylinder which extends downwards into the stem of such stand and
the interior of which is bored out to fit the before mentioned vertical screw shaft.
The outside of the cylinder is truly turned to allow a socket to rotate smoothly
and move vertically up and down. To this last mentioned socket there are
secured two, three, four or more arms extending outwards and the upper ends of
which are provided with flanged plates, or their equivalents by means of which
the said arms are secured to the underside of the seat.
In place of securing a metal cylinder to the stand of the stool, in the manner
herein before described, the upper part of the stand itself may be turned so as to
constitute the necessary cylindrical slide or support.
In order that my said invention may be properly understood and readily carried
into effect, I will now proceed to describe the drawings hereunto annexed.
Figures 1 and 4, are part vertical_sections, and part elevations of music stools
constructed according to my present Invention.
Figure 2, is a plan of the movable socket with its seat supporting arms provided
with flanged plates.
Figures 3 and 5 represent elevations of the same figure 3, showing the socket in
connection with the metal cylinder, and figure 5, when the upper part of the stand
itself forms the cylindrical slide or support. Figures 2 and 3, are drawn to the
same but to a smaller scale than the others.
According to the arrangement illustrated in Figure 1, a metal cylinder A is used
having a flange B, about the middle of its length, by which it is secured to the
upper part of the stand C,-The lower part of the cylinder A, extends downwards
into the stem of the stand C, whilst the upper part, which is truly turned on the
outside, serves as a guide for the socket D, allowing it to rotate smoothly, and mov
vertically up and down. The vertical screw E, and nut F, are constructed in the
ordinary well known manner, the screw E, being formed on a shaft, and the nut F
which is part of the cylinder A, being correspondingly screw-threaded. A smal

page_text: part at the top of the cylinder A, is bored out to fit the upper part of the vertical
screw shaft E, the periphery of which is plain or cylindrical. To the before-
mentioned socket D, there are secured two, three, four or more arms G, extending
outwards and the upper ends of which are provided with flanged plates H, or their
equivalents, by means of which the said arms G, are secured to the underside of
the seat K, The screw shaft E is also secured to the underside of the seat K, in the
ordinary manner by means of a plate L.
In place of securing a metal cylinder A by a flange B, to the stand C, of the
music stool as shewn in Figure 1, and hereinbefore described, the upper part of the
stand C, itself may be turned so as to constitute the necessary cylindrical slide or
support as shewn at Figures 4 and 5,-In this case the nut F¹, is cast separately,
and securely fixed to the stand C, by any of the well known methods adopted for
that purpose.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be perforined, I declare that what
I claim is-
First The improvements in music stools, consisting of the socket D, supplied
with arms G, which are securely fixed to the underside of the seat K, thereby
adding rigidity thereto, and greater durability, the whole rotating smoothly up
and down on a metal or wood cylinder A or C, all substantially as and operating
in the manner and for the purposes herein before set forth with reference to the
annexed drawings.
Second-The general construction arrangement and combination of parts forming
my improvements substantially as and operating in the manner and for the
purposes hereinbefore set forth with reference to the annexed drawings.