IMPROVEMENTS IN FOLDING EASELS OR STANDS OF A SIMILAR NATURE
Year: 1884

page_text: A
I CHARLES ALLAN JONES of Hatherley Court Gloucester, Solicitor do hereby
declare the nature of my invention for IMPROVEMENTS IN FOLDING EASELS OR
STANDS OF A SIMILAR NATURE to be as follows :—
A stand consisting of two principal members, the one a frame to which a
permanent or moveable ledge is attached on which ledge the drawing board or
other article to be supported is rested, the other member, a prop or support to koep
the above mentioned frame at the required inclination-The frame consists of two
legs or bars respectively attached to a central bar by two short connecting rods in
such a manner that the legs may be shut up parallel to each other or opened
apart The prop consists of two bars attached at their upper extremities by means.
of a hinge or socket to or near the upper ends of the front legs and at their lower
extremities by means of a similar hinge or socket to the one end of a stretcher tho
other end of which stretcher is attached by a hinge or centre pin to the lower end
of the before mentioned central bar-All the parts are so proportioned that when
the casel is shut up they simultaneously fold themselves compactly together as it
wore in a bundle The easel is opened out by pulling the two front legs apart and
by so doing the necessary motion is communicated simultaneously by means of the
connecting rods and stretcher bar to the prop.

page_text: COMPLETE SPECIFICATION.
I. CHARLES ALLAN JONES of Hatherloy Court Gloucester Solicitor do hereby
declare the nature of my invention for IMPROVEMENTS IN FOLDING EASELS OR
STANDS OF A SIMILAR NATURE and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :—
In the accompanying drawings Figure 1 represents one of my folding easels
opened out Figures 2 and 3 are respectively a front and a side elevation of the
same when closed-It will be seen that the easel or stand consists of two principal
members the one a frame to which a ledge may be attached by means of pegs or
some other suitable contrivance on which ledge the article to be supported is rested,
the other member a prop or support to keep the above mentioned frame at the
required inclination.
The frame consists of two legs or bars A A respectively attached to the central
bar B by two short connecting or radius rods C C D D which rotate on the screws
or pivots near their extremities so that the legs A A may be shut up parallel to
each other as in Figure 2 or opened apart as in Figure 1. The rotation of the
radius rods C C D D may be limited by making the ends attached to the central
bar B of a similar shape to that shown in Figure 2-The prop consists of two
bars E E attached at their upper extremities by means of a hinge to the upper
ends of the legs A A and at their lower extremities by means of a similar hinge to
the one end of the stretcher F the other end of which stretcher F is attached to
the lower end of the central bar B-Details of the hinge joints at the upper and
lower ends of E E are respectively shown in Figures 4 and 5 where the bar E is
capable of rotating on the screw or pivot attaching it to the hinge, in one plane
and the bars A and F are respectively capable of rotating in a plane at right angles
to the former plane thus forming a quasi universal joint. The hinge joint by which
the stretcher F is attached to the central bar B must be carefully fitted as unless
the stretcher F moves in a plane at right angles to the plane in which the front
principal moves the bars A A will not open apart equally and simultaneously, and
the easel will not be as rigid as it would otherwise be. All the parts are so
proportioned that when the easel is closed they lie compactly together as in
figures 2 and 3.
The easel is opened out for use by merely pulling the two legs A A apart and by
so doing the necessary opening motion is communicated simultaneously to the prop.
The easel or stand hereinbefore described and illustrated in the accompanying
drawings can be varied or modified by attaching the upper ends of the front
legs A Å to the central bar B by means of a collar or block capable of sliding on,
or in grooves or slots in, the central bar B instead of by means of the two radius
rods CC, and the bars E E can be attached as before described or a single bar
hinged at its upper extremity to the said collar or block and at its lower extremity
to the stretcher F, can be substituted for them, but although this form of the easel
is more rigid than the one illustrated in the drawings it lacks the advantage of the
width at the top when open which the illustrated form of the easel possesses.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. The arrangement and combination of parts constituting the folding easel or
stand substantially as, hereinbefore described with reference to the accompanying
drawings.
2. In folding easels or stands of a similar nature the combination of the bars E E
and the stretcher F forming the prop or support substantially as and for the
purposes herein before described and illustrated in the accompanying drawings.
3. In folding easels or stands of a similar nature the stretcher F operating
substantially as and for the purposes set forth.