IMPROVEMENT OF MUSIC AND OTHER STOOLS AND SEATS
Year: 1885

page_text: GEORGE WHITEHEAD of 91 Anglesea Street Aston Warwickshire Engraver and
Rose Engine Turner and WILLIAM ROBERT WAYNE of 234 Green Lanes Small
Heath Birmingham Warwickshire Engraver do hereby declare the nature of our
invention for THE IMPROVEMENT OF MUSIC AND OTHER STOOLS AND SEATS to be
as follows:-
The Invention consists of a toothed rack and spring lever encased within metalic
tubes tellescoping into each other, so that nothing is seen of the rack or spring
lever, and can be instantly raised by lifting up the seat, when it is securely fastened
by a spring which forces the lever tooth into the rack and can be at once lowered
by pressing upwards a small lever conveniently placed under the seat.
We also claim the advantage of making the seat to turn horizontally on a central
pivot.

page_text: We, GEORGE WHITEHEAD of 91 Anglesea Street, Aston Warwickshire, Engineer,
and Rose Engine Turner, and WILLIAM ROBERT WAYNE, of 234, Green Lanes,
Small Heath, Birmingham, Warwickshire, Engraver, do hereby declare the nature
of our invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, and accompanying
drawing (that is to say) :—
Our invention relates to music and other stools and seats, in which it is necessary
to alter the height of the seat to suit the convenience of the person using it, and it
has for its object a novel method of constructing such stools or seats so that they
can be very readily, and quickly adjusted to the desired height, whilst they are
simple and effective in operation, and cheaply made.
In the accompanying drawing which is in illustration of our invention, figure 1 is
a side view and figure 2 a section of an ordinary music stool having our invention
applied to it.
"
:
a represents the base of the stool, upon the centre of which is fixed a socket b
descending into the base a and having fixed upon its upper side a vertical brass or
other metal tube c, into which fits freely and slides telescopically within it an upper
corresponding metal tube & the upper end of which is provided with a socket and
flange which carries the seat itself e. A vertical toothed rack f, having inverted
angular teeth along one edge, is arranged within the tubes its lower end being fixed
to the socket b, whilst its upper end is free so that the tube d can rise and fall
freely over it. At the upper end of the inner tube d is fitted a bellcrank lever
turning upon a centre g, its vertical arm h descending through the tube & and
having at its lower end a tooth or détent i which engages with the teeth of the
rack, whilst its horizontal arm k passes out through an opening in the side of the
tube d below the seat e and is provided at its outer end with a plate or handle
by which it can be raised when desired so as to withdraw the tooth i from the
rack f, a spring m pressing the tooth against and into the inclined teeth of the rack
when the handle is released.
When it is desired to raise the seat e this can be instantly done by lifting it to
the height required, the tooth i passing over the teeth of the rack f, with one of
which it engages when the seat is released.
To lower the seat the handle
is raised until the tooth i is free from the rack,
and the tube & and seat a can then slide down in the outer tube c. The tube d is
preferably provided with a stop which coming in contact with the cap n prevents
the tube from being entirely withdrawn.
The upper faces of the teeth are preferably somewhat inclined as shewn, so that
the seat has to be slightly raised before the tooth i can be disengaged from the
rack, and the seat is thus prevented from accidentally slipping down.
The seat may be rigidly attached to the upper end of the tube d, or where it is
required that the seat should be capable of turning round independently, it may
be connected as shown by a socket o passing through the bottom p of the seat and
having a covering plater screwed upon its upper end.
"

page_text: The improved stool or seat may be made as ornamental as desired, and the outer
tube c may be enclosed in a carved wood or other case.
It will be seen that it is very simple, and cheap, having no complicated mechanism
to get out of order, whilst it can be instantly raised to any required height without
leaving the seat by simply lifting the latter, and can be at once lowered by lifting
the handle. It is very durable having no internal screws or parts likely to wear
quickly.
We do not confine ourselves to the precise form and arrangement of the several
parts of the apparatus described and shewn, which may be varied more or less to
suit different seats, but having now particularly described and ascertained the
nature of our said invention and in what manner the same is to be performed
we declare that what we claim is :—
1. In rising and falling stools or seats the combination of the tubes c and d,
rack and lever h, k, substantially as and for the purpose described and shewn.
2. The combination with the tubes c and d, rack f, and lever h, k, the socket o,
and covering plate p, substantially as described and shown.