An Improvement in the Mode of Raising and Lowering the Seats of Music Stools, Chairs, and the like.
Year: 1888

page_text: Date of Application, 29th Aug., 1888
Complete Specification Left. 28th May, 1-89-Accepted, 10th Aug., 1839
PROVISIONAL SPECIFICATION.
An Improvement in the Mode of Raising and Lowering the Seats
of Music Stools, Chairs, and the like.
―
LOUIS CARSTEN NIEBOUR of Clarence Street, Kingston in the County of Surrey
Dealer in Musical Instruments do hereby declare the nature of this invention to be as
follows:-
The object of my Invention is to improve the mode of raising & lowering the Seats
of Music Stools, Chairs, & the like.
For this purpose I use three or more vertical screws-each having a plate attached,
by which they are secured to the underpart of the seat of the Stool or Chair-and
fitted to each screw I use a Cog-wheel-nut.
A wooden or other top is secured to the legs or supports of the Stool or Chair-
having holes for the reception of the three or more sd. screws.
Between the underpart of the seat of the sd. Stool or Chair and the wooden or other
top, secured to the legs or supports-I use a Cog-wheel having a Flange on the upper
part or a circular piece of wood or metal having wooden or other pegs inserted at
proper intervals. A bolt secured by a nut passes through the centre of the Cog wheel
and through the centre of the wooden or other top before mentioned-thus holding
the seat and the underpart together.
On the centre wheel being turned the three or more Cog-wheel-nuts are acted on
simultaneously rapidly raising or lowering and securing a perfectly steady seat.
Dated this 28th day of August 1288
LOUIS CARSTEN NIEBOUR.
COMPLETE SPECIFICATION.
An Improvement in the Mode of Raising and Lowering the Seats
of Music Stools, Chairs, and the like.
I, LOUIS CARSTEN NIEBOUR of Clarence Street, Kingston on Thames in the County
of Surrey, Dealer in Musical Instruments, 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 improve the mode of raising and lowering the seats
of music stools chairs and the like.
For this purpose I use three or more vertical screws-each having a plate attached
by which they are secured to the underpart of the seat of the stool or chair-and
fitted to each screw I use a cog wheel nut through which the sd. screws pass-A
wooden or other top is secured to the legs or supports of the stool or chair-having
holes for the reception of the three or more sd. screws-Between the underpart of the
seat of the sd. stool or chair and the wooden or other top secured to the legs or
supports I use a cog wheel A Fig. 1. having a Flange on the upper part-or a
circular piece of wood or metal having wooden or other pegs inserted at proper
intervals or 1 use a metal or other rim having teeth. A bolt B secured by a nut (
passes through the centre of the cog wheel and the centre of the wooden or other top
before mentioned-thus holding the seat and the under part together.
On the centre wheel being turned, the three or more cog wheel nuts are acted on
simultaneously-rapidly raising or lowering and securing a perfectly steady sent.

page_text: Having now particularly described and ascertained the nature of my sd. Inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
The Improvements in music stools and other seats as hereinbefore described and set
forth.
Dated this 27th day of May 1899
L
LOUIS CARSTEN NIEBOUR.