An Improved Construction of Seats or Chairs.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improved Construction of Seats or Chairs.
We, FIDELIUS TSCHOFEN, Captain in the Austrian Army, of VIII Floriaring,
No. 44, and FELIX KOHN, Manufacturer, of I Elisabethstrasse, No. 24, both in
Vienna, Austria, do hereby declare the nature of this invention to be as follows:-
Rocking chairs or seats of known construction have either curved bottom rails
or the legs or base of the chair rest upon springs, as in the case of invalid chairs.
The present invention relates to a construction of such seats or chairs in which,
contrary to the construction heretofore employed, the legs or under frame of the
chair rests on the floor in the same way, as ordinary chairs, that is, without having
a rocking device, while the seat proper is supported upon the underframe by
means of an axis in such a manner that it can rock thereon, such rocking motion
being controlled by springs. The advantage obtained by this construction of seat
is that the seat surface will adjust itself automatically to every position of the
person sitting thereon and may consequently be used with great advantage not
only as a rocking chair but also as an ordinary chair or seat."
The seat or chair may be constructed in various ways in carrying out the said
invention.
Thus according to one construction, the under frame is made of two side parts
of bent wood of an inverted U shape, or it may be of any other construction and
the seat proper is carried on pivot pins between the tops of the two bends; or the
tops of the bends may have fixed to them angular metal plates, upon the apices
of which the underside of the seat rests by means of notches. Each end of the seat
is connected by a helical volute, or other suitable spring to a transverse piece or
ring connecting the two side frames, the springs being arranged so that they hold
the seat in the horizontal position when no one is sitting on it, but to allow this
to be fitted into either a forward or a backward angular position by a person
sitting thereon.
According to another arrangement, the seat proper has attached to its underside
two bow or looped shaped blade springs, the middle parts of which are securely
fixed to the top of the under frame, so that the springs will yield when the seat is
tilted forward or backward.
Dated this 22nd day of November 1897.
ABEL & IMRAY,
Agents for the Applicants.

page_text: An improved Construction of Seats or Chairs.
We, FIDELIUS TSCHOFEN, Captain in the Austrian Army, of VIII Floriaring,
No. 44, and FELIX KOIN, Manufacturer, of I Elizabethstrasse, No 24, both in
Vienna, Austria, 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 present invention relates to a construction of such seats or chairs in which,
contrary to the construction heretofore employed, the legs or under frame of the
chair rests on the floor in the same way, as ordinary chairs, that is, without having
a rocking device while the seat proper is supported upon the underframe by
means of an axis in such a manner that it can rock thereon, such rocking motion
being controlled by springs. The advantage obtained by this construction of seat
is that the seat surface will adjust itself automatically to every position of the
person sitting thereon and may consequently be used with great advantage not
only as a rocking chair but also as an ordinary chair or seat."
The seat or chair may be constructed in various ways in carrying out the said
invention.
Thus according to one construction shewn at Figs. 1, 2, & 3 of the accompanying
drawings the under frame is made of two side parts a of bent wood of an inverted
U shape (or it may be of any other construction) and the seat proper is carried
on pivot pins c between the tops of the two bends; or the tops of the bends may
have fixed to them angular metal plates as at c Fig. 4 upon the apices of which
the underside of the seat brests by means of notches. Each end of the seat is
connected by a helical, volute, or other suitable spring e to a transverse piece or
rung d connecting the two side frames, the springs being arranged so that they
hold the seat in the horizontal position when no one is sitting on it, but to allow
this to be tilted into either a forward or a backward angular position by a person
sitting thereon.
According to another arrangement shewn at Fig. 5, the seat proper 6 has
attached to its underside two bow or loop shaped blade springs e¹ the middle parts
of which are securely fixed to the top of the underframe a while the ends are con-
nected to the seat so that the springs will yield when the seat is tilted forward or
backward.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is:-
1. Rocking seats or chairs consisting of a stationary underframe or stand a on
which the seat b is arranged to rock on horizontal pivots or supports c its motion
being controlled by springs e substantially as described with reference to Figs. 1
to 4 of the drawings.
2. Rocking seats or chairs consisting of a stationary underframe or stand a on
which are fixed blade springs e the ends of which are attached to the seat b
substantially as described with reference to Fig. 5 of the drawings.
Dated this 20th day of August 1898.
Dated this 20th day of August 1898.
ABEL & IMRAY,
Agents for the Applicants.
ABEL & IMRAY,
Agents for the Applicants.