AN IMPROVED ADJUSTING CHAIR, CHIEFLY DESIGNED FOR HAIRDRESSERS' AND DENTISTS' USE
Year: 1874

page_text: PROVISIONAL SPECIFICATION left by William Morris Golden at the
Office of the Commissioners of Patents, with his Petition, on the
3rd July 1874.
I, WILLIAM MORRIS GOLDEN, of Brooklyn, New York, United States
of America, now of No. 8, Southampton Buildings, London, do hereby
declare the nature of the said Invention for "AN IMPROVED ADJUSTING
CHAIR, CHIEFLY DESIGNED FOR HAIRDRESSERS' AND DENTISTS' USE," to be as
follows:-
My Invention relates to a chair provided with novel and simple
mechanism whereby its back may be adjusted to any desired height and
angle of inclination, and which is provided with a head rest capable of.
vertical and angular adjustment. The said chair is chiefly designed for
the use of hairdressers or barbers and dentists, but will be found
advantageous in all cases where it is necessary or desirable to have a
chair which may be readily and comfortably adjusted to suit persons of
different stature, and to support them in various positions in the said
chair.

page_text: The said improved chair is constructed with a seat and legs of any
convenient size and form, and of any suitable material. It has arms at
the sides which are hinged or jointed to two uprights attached to the
front of the seat, and which are formed on or attached to the chair back.
A rod or bar pivotted or jointed to the lower part of the said chair back
extends downward from the same. This rod has a screw formed on its
lower end which passes through a small bevil pinion whose boss is cut
with a corresponding screw. This pinion is supported in a bracket fixed
on the back of the chair frame; this bracket allows the said pinion to
turn freely but prevents its moving vertically. Therefore by turning the
said pinion vertical movement is imparted to the screw rod and the
chair back will be raised or lowered, and its angle of inclination to
the seat will be changed as required. The turning of the said pinion is
'effected by means of a handle or hand wheel, secured on the axis of a
bevil wheel, which is geared with the said pinion. The said wheel axis
is supported to turn freely in a bearing formed in an attachment pivotted
or jointed to the said bracket, and which has also a bearing for the screw
rod. The said adjustable back may be padded or stuffed, and covered
with any suitable material, and by its adjustment may be made
thoroughly comfortable for any person sitting in the chair.
The head rest is a piece shaped to correspond with the back of the
head, and stuffed or padded to afford a soft and comfortable support
therefor. The said rest is fixed on a light frame carried on the top of
guide bars which slide through metal rings fixed in the top of the chair
back. By raising or lowering this frame with its rods the height of the
rest can be varied at pleasure, and it is secured or locked in any position
by a pinching screw or other suitable means. The rest is attached to
the aforesaid frame by a hinged joint, which permits it to be inclined
at any required angle to the chair back; and to permit the said rest to
be supported in the various angular positions into which it may be
adjusted I provide it with a toothed sector which works through a slot
or opening in the frame; in this slot I place a toothed catch or pawl
.which when in gear with the said toothed sector holds it securely, but
when the said pawl is raised out of gear with the said sector it leaves
the rest free to be adjusted.