Improvement in Platform Base Rocking and Swing Chairs.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvement in Platform Base Rocking and Swing Chairs.
JAMES MURRAY, 52, Great Eastern Street, London, and OWEN TOWNSEND, 3,
Grayhurst Road, Dalston, London, Chairmakers, do hereby declare the nature of this
invention to be as follows:-
Improvement in platform base rocking chairs & swing chairs which consist in
being able to make alterations as follow. To convert base rocking & swing chairs
into easy & rigid chairs & vice versa in this manner. We construct a chair formed
of a portable base or standard attatched to seat & back. The portable base or
standard is formed of four or more cross rails with two or more rails at each side
connected at top & bottom by upright stumps or spindles & held together by
transverse bars or rails we fix a short base on to the seat of the chair likewise held
together by upright stumps or spindles & held together by transverse bars or rails.
We suspend the back & seat of the chair on to the portable base & connect together
by four wood, or metal, of iron steel or brass or any metal hinges or axles or by
springs. We prefer metal hinges or axles to wood or springs. These hinges give to
the chair a swing or rocking motion. We claim to have invented a lockbar, to stop
the swing or rocking motion attached as follow. We place in the portable base an
extra transverse bar or stretcher & the same on the fixed part of the base that is
attached to the seat. Through one or other of these bars or stretchers we place our
horizontal lockbar. The lockbar has an eye or round hole drilled into it at one end,
by which we binge it on to one or other of the fixed stretchers on the portable &
fixed base easily moved at will by the sitter in the chair. There are notches cut in
the look bar at the other end by which we can set the back & seat of chairs rigid
on any angle. We by this means having the horizontal lock bar fixed on to the
transverse bars or rails, can alter at will the movement of the chair without the
sitter moving out of the chairs. We thus make a distinct change from rocking and
swing chairs to easy & rigid chairs or vice versa.
Dated this Third day of February 1897
Improvement in Platform Base Rocking and Swing Chairs.
JAMES MURRAY, Chairmaker, 315, Old Street, London, E.C., late of 52, Great
Eastern Street, London, E.C., OWEN TOWNSEND, Chairmaker, 3, Grayhurst Road, Hoxton,
London, N., 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:-
Improvement in platform base rocking swing chairs which consist in being able to
make altomation Sollam

page_text: To convert base rocking swing chairs into easy rigid chairs we use what is known
as an American swing chair. We claim no patent in the swing but claim to have
invented a lockbar that makes the swing chair into a rigid one.
We make a chair with seat and back to which we fix under the seat a standard
or base, made of various stumps or spindles, to which are attached cross bars on
either side, held together by transverse bars or stretchers. We make a portable base
made also of cross bara fixed together in the sides by spindles and connected by
transverse stretchers. The portable base is attached to the fixed part by iron hinges
or the like. These hinges give the chair the oscillation or swing movement. On to
the fixed part of the base we place our horizontal lockhar. It is made by drilling an
eye or hole as at A through the front part of it into which we insert one of the
stretchers of the base. At the back end of the lockbar we cut one or more notches
as at B which readily catches hold of a stretcher so placed as to remain firm on the
portable part of the base. That portion of the lockbar nearest the front of the chair
protrudes in tongue fashion which forms a leverage so as to fasten or release the
chair from the fixed base; so that the chair may be swung or locked at the will &
convenience of the sitter, without rising from his seat. We had before us a clip at
back of chair & a screw with handle in the front of the seat of the chair but we prefer
the horizontal lockbar as described.
Having now particularly described & ascertained the nature of our said inven-
tion & in what manner the same is to be performed, we declare that we claim is :-
A lockbar with various notches by which a swing chair can be set rigid or let loose
to swing on hinges at the will of the sitter substantially as herein before described
& shown in the drawing.
JAMES MURRAY.
OWEN TOWNSEND.