A New or Improved Folding Frame for Artists.
Year: 1895

page_text: '
Date of Application, 2nd July, 1895
Complete Specification Left, 2nd Apr., 1896-Accepted, 9th May, 1896
PROVISIONAL SPECIFICATION.
A New or Improved Folding Frame for Artists.
I, FRIEDRICH SCHWEIGER, of Klenzestrasse 99, Munich in the Empire of
Germany, Gentleman, do hereby declare the nature of this invention to be as
follows:-
The object of the present invention is to provide a folding frame for artists
adapted for stretching or fastening on the same canvas, paper, or board by means
of thumb tacks or the like and which, by a simple handling, renders it possible that
several sketches of different dimensions may be safely sheltered and preserved and
the small weight and volume of the frame considerably facilitates its transport
on excursions.
This invention consists of a folding frame for artists constructed of or with flaps
or folds provided with edge strips and united by means of hinges the arrangement
of said strips being such that the folds or flaps may be folded when used for transport
or for a single form, while by unfolding said flaps extended drawing surfaces of
twice, three or more times the size of the single form may be obtained, the folds
being kept in place by hooks and corresponding pins.
Dated this 2nd day of July 1895.
HERBERT HADDAN & Co.,
Agents to the Applicant.
A New or improved Folding Frame for Artists.
I, FRIEDRICH SCHWEIGER, of Klenzestrasse 99, Munich in the Empire of
Germany, Gentleman, 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 the present invention is to provide a folding frame for artists
which is adapted for stretching or fastening on the same, canvas, paper, or board
by means of thumb tacks or the like and which, by a simple handling, renders it
possible that several sketches of different dimensions may be safely sheltered and
preserved, the small weight and volume of the frame also considerably facilitating
its transport on excursions.
This invention consists of a folding frame for artists constructed of or with flaps
or folds provided with edge strips and united by means of hinges, the arrangement
of said strips being such that the folds or flaps may be folded when used for transport
or for a single form, while by unfolding said flaps extended drawing surfaces of
twice, three or more times the size of the single form may be obtained, the folds
being kept in place by hooks and corresponding pins.
This folding frame is represented in the annexed drawing, in which
Fig. 1 is a front-view,
Fio 2a nart roor view thereof

page_text: Figs. 5 and 6 represent a front-view and cross section respectively of the frame
when folded up.
Figs. 7 to 10 show the arrangement of the parts of the frame when using the
same doubled once only, in front-view and section respectively,
Fig. 11 shows part of the frame, upon which a canvas of four times the size of
the folded frame can be placed.
The frame consists of several parts or flaps (in the drawing four) a b c d which
are, along their respective shorter ends or edges, as well as partly at one or both
sides, provided or lined with small or thin strips e. Each two of the said parts or
flaps are, by means of hinges f united to each other in such a manner, that the frame
may be folded up when required, for transportation or for the purpose of using the
smaller form of the same (Figs. 5 and 6). Said frame therefore offers two-surfaces
for sketches of smaller dimensions. Besides, the frame may be unfolded or
expanded in such manner that it is adapted to receive three sheets of sketches of
twice the size of the frame itself. For that end either the two exterior flaps a
and d may be unfolded in the direction of the arrows (Fig. 6) whereby the frame
would assume the form shown in Figs. 7 and 8, or the flaps a and b as well as the
flaps c and d may be turned outwardly in the direction of the arrows y (Fig. 6), 80
that the said parts of the frame assume the position represented in Figs. 9 and 10.
In order to retain the frame in the position as shown in Figs. 7 to 10, the free ends
of a and d are each provided with a hook g and a corresponding pin h respectively,
by which the folded up board is kept together. The flaps abcd have small
strips e along those longitudinal sides where they meet or adjoin when intended to
be prepared for the doubled form.
To provide for a frame of 3 or 4 times the size, the stripse of the middle parts
are dispensed with. Moreover, these parts are, at their meeting points, shortened
1-2 cm. while the strips along the shorter ends retain their lengths.
In consequence of this arrangement the stretched paper or board, which, on
folding up the frame comes to lie on said parts, is neither stretched nor folded,
thus rendering the enlargement of the drawing surface for one or more parts or
flaps possible. As the paper or board stretched over the single parts of the
frame when the latter is folded up, does not touch the paper on the opposite
surface on account of the strips e, it is possible to preserve the sketches even in
a moist state, without injuring or damaging each other in the least degree.
It is manifest from the foregoing description, that the number of the folds or
flaps of the frame may be increased at will, or as required.
The simple and solid construction of the folding frame has further the advantage
above all other existing forms and constructions, that it may be made at little
expense, and kept in all painting-cases heretofore in use, which would only
necessitate a slight raising of the cover. The handling and transforming of the
frame into any desired dimension is very simple and easy to execute. Never-
theless it offers, when used and when folded up, not only a completely sure and
stable support but also a protection to the moist sketches when transported. To
keep the opened frame in its position, serve either the hooks and pins gh on the
narrow-sides, or the hooks k upon the strips e and opposite the hinge-joints f.
These books are kept by pins land when out of use they are turned back over
the stripe of one of the parts of the frame.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
1. A folding frame for artists characterized by the arrangement of edge-strips e
upon the single folds or flaps a b c d in such a manner, that by the opening of the
frame one or more drawing surfaces of twice, thrice or more times the size of the
closed frame may be obtained, whereby for more than twice as great drawing
surfaces the single flaps are cut away as at i.
2. A construction of the frame described in Claim 1., characterized by the

page_text: combination of 4 single flaps and the arrangement of the edge-strips in such a
manner, that upon the frame three double sizes and two single ones may be placed
and the drawing surface may be fixed when opened.
3. A construction of the frame, described in Claim 1. for larger than double
sizes, having a part cut away at i where the two middle flaps touch, where the
canvas folds loosely when the frame is folded together.
Dated this 1st day of April 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents to Applicant.