IMPROVEMENTS IN FOLDING ARM CHAIRS FOR PUBLIC BUILDINGS AND DOMESTIC USE
Year: 1884

page_text: [Communicated from abroad by Leopold Van Steene, in the employ of the Commune,
Brussels, and Louis Cattreut, Shorthand Writer to the Belgian Chamber of
Deputies, both of 1, rue des Riches clairs, Brussels, Belgium.]
"
I PETER JENSEN of 33 Chancery Lane in the County of Middlesex, Fellow of
the Institute of Patent Agents do hereby declare the nature of said invention for
"IMPROVEMENTS IN FOLDING ARM CHAIRS FOR PUBLIC BUILDINGS AND DOMESTIC
USE (A communication to ine from abroad by Leopold Van Steene, in the employ
of the Commune, Brussels, and Louis Cattreut, Shorthand Writer to the Belgian
Chamber of Deputies both of 1 rue des Riches clairs, Brussels Belgium) to be as
follows:-
According to this invention the arm chair is made so that the seat and the arms
rise automatically when not used thus occupying the least possible space which is
of special importance in such large public buildings where the greatest number of
seats is to be provided in the least possible space.
The arm chair consists mainly of the seat, the two arms, and the back or frame-
work with legs. The seat is hinged at the back and provided with back continuation
forming or having a fixed counterweight which throws the seat up in about a vertical
position when the occupant rises from the seat. The two arms are also hinged to
the side framework of the chair above the seat. Each arın is at the back of the
said hinge joint formed with a short back projection or prolongation which by
connecting rod is jointed to each side of the seat, the joint pin at the lower end of
each rod working in a curved slot. In this manner when a person turns down the
seat the aforesaid connecting rods will be raised and the arms thereby let down
into a horizontal position. This simple mechanism is or may be enclosed in the
two side frames or upper prolongations of the legs so as to be out of sight.
The seat pivots stand out one on each side at its lower part and the pivot-
brackets being fastened by two or three little screws, the seat is easily removed for
repairs by taking out the said screws.

page_text: At the lower inner part of each of the two legs is fixed a small bracket to which
is pivoted a footboard for resting the feet on; this footboard is also provided with
back prolongation acting as a counterweight which raises the footboard into
a slanting position when not in use.
Springs may be provided instead of or to assist the action of the aforesaid
counterweights. India rubber buffers are provided to deaden the noise when the
parts of the chair fold up against each other automatically.

page_text: COMPLETE SPECIFICATION.
I PETER JENSEN of 33 Chancery Lane in the County of Middlesex, Fellow of
the Institute of Patent Agents do hereby declare the nature of said invention for
"IMPROVEMENTS IN FOLDING ARM CHAIRS FOR PUBLIC BUILDINGS AND DOMESTIC
USE," (A communication to me from abroad by Leopold Vansteene in the employ
of the Commune Brussels, and Louis Cattreut Shorthand Writer to the Belgian
Chamber of Deputies both of 1 rue des Riches clairs Brussels Belgium) and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement:—
According to this invention the arm chair made so that the seat and the arms
rise automatically when not used thus occupying the least possible space which is
of special importance in such large public buildings where the greatest number of
seats is to be provided in the least possible space.
With reference to the accompanying drawings Figure 1 is a back view showing
the left side framing of one chair and the right side framing and part of the seat
and footrest of another and adjacent chair.
Figure 2 is a side view of the arm chair as it will appear when open, and
Figure 3 is also a side view of the same but closed up.
The arm chair consists mainly of the seat a the two arms b and the back or
framework B with legs and strengthened by means of a stay e. The seat a is
hinged at the back at D¹ and provided with back continuation forming or having
a fixed counterweight A which throws the seat up in about a vertical position when
the occupant rises from the seat. The two arms b are also hinged at D to the side
framework of the chair above the seat. Each arm is at the back of the said hinge
joint D formed with a short back projection or prolongation 61 which by a connecting
rod F is jointed to each side of the seat the joint pin c at the lower end of each rod
working in a curved slot C in the framework. In this manner when a person turns
down the seat a the aforesaid connecting rods F will be raised and the arm b thereby
let down into a horizontal position. This simple mechanism is or may be enclosed
or boxed in the two side frames or upper prolongations of the legs so as to be out
of sight.
The seat pivots stand out one on each side at the lower part of the seat and the
pivot brackets being fastened by two or three little screws the seat is easily removed
for repairs by taking out the said screws.
At the lower inner part of each of the two legs is fixed a small bracket to which
is pivoted at D a footboard d for the convenience of the person sitting directly
behind the chair; this foot board is also provided with back prolongation which
comes against the stop when in use and which acts as a counterweight and raises
the footboard into a slightly slanting or upright position when not in use.
Springs may be provided instead of or to assist the action of the aforesaid
counterweights. India rubber buffers are provided to deaden the noise when the
parts of the chair fold up against each other automatically.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
First: An automatically folding arm chair in which the seat and the arms are
mechanically connected at their ends and counterbalanced and capable of being
raised and lowered together, substantially as described.
Second The automatically folding arm chair as shown on the drawing.
the
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