Improved Appliances for Holding Tressels, Step-ladders, and Easels More Securely in Proper Position when in Use.
Year: 1886

page_text: Date of Application, 7th Oct., 1886.
Complete Left, 11th June, 1887.
Complete Accepted, 12th July, 1887.
Improved Appliances for Holding Tressels, Step-ladders, and Easels
More Securely in Proper Position when in Use.
We ALLAN EDMONDSON, Cabinet Maker, JOHN BENJAMIN MOORHOUSE, Ironmonger,
and THOMAS ABRAHAM PROCTER, Cabinet Maker, all of Skipton-in-Craven Yorkshire
do hereby declare the nature of this invention to be as follows:-
This invention consists of an improved application of parts to tressels, step-ladders,
and easels so as to hold the same more securely opened or in proper position when in
use, in this manner obviating the inconvenience and danger that is often caused by
the same accidentally closing or collapsing as is frequently the case when only
ordinary means are employed.
To accomplish this we hinge to either of the upright parts or legs of the tressel,
step-ladder or easel, a suitably shaped slotted link, of an appropriate length; and to
the other, and opposite, upright part or leg we attach a pin, which preferably has a
button head. The said pin passing through the slot in the before-said slotted link, by
its button head keeps the same in position.
At a suitable part in the upper edge of the slot in the above named slotted-link is
formed a notch (or if necessary more than one notch may be formed as will easily be
seen), which is in position to lay hold of the before named link when the legs or
upright parts of the tressels, etc., are opened the required distance apart, in this
manner holding the same rigidly in this position.
To liberate these upright parts or legs so as to close them, it is only necessary to
lift the link so that the notch will be clear of the pin, and by the slot in the link
allowing the pin to move along it, that which is desired may be accomplished.
Dated this 6th day of October 1886.

page_text: More Securely in Proper Position when in Use.
We, ALLAN EDMONDSON, Cabinet Maker, JOHN BENJAMIN MOORHOUSE, Ironmonger,
and THOMAS ABRAHAM PROCTER, Cabinet Maker, all of Skipton-in-Craven, Yorkshire,
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, that is to say :-
It consists of the application of parts to tressels, step ladders and easels so as to
hold same more securely when in use, in this manner obviating the inconvenience
and danger that is often caused by same accidentally closing or collapsing as is
frequently the case when only ordinary means are employed.
In order that this said invention may be more clearly understood we have here-
unto appended a sheet of drawings illustrative thereof to which reference is made in
the following description.
Fig. 1 is a side view of a step ladder with the improved appliance attached.
Fig. 2 is a side view of the appliance, and Fig. 3 is a detail drawing, figs. 4 and 5
being plan views of figs. 2 and 3 respectively. Figs. 6 and 7 are side view and
detail drawing respectively of a modification in said appliances.
As the functions of the appliance are the same, whether it is applied to a tressel
step ladder or easel we thought it would be sufficiently illustrated by being shewn in
connection with any one of theso, the step-ladder being the one employed, and the
one alone to which reference is made in the following description.
The object above set forth, is accomplished by hinging to either of the upright
parts or legs a or b (that marked a being the one herin employed) of the step-ladder,
a suitably shaped slotted link c which is of an appropriate length to correspond with
the distance that the legs a and b are apart.
b
C
We preferably hinge said link e to said legs a or b by a button beaded pin & which
is attached to the plate e which is fixed to said leg a.
To the other and opposite
leg we attach a pin f(preferably of a button headed shape as shewn and baving its
fixing by the plate 9) which passes through the slot in said link c, and by its head
keeps said link in proper position as will be understood.
At a suitable part in the upper edge of the slot in the above named link c is formed
a notch (or if desired more than one notch may be made as shewn in the modifi-
cation fig. 6, iii), which is in position to lay hold of the pin f when the legs
and bare apart as shewn by fig. 1, in this manner holding same rigidly in this
position.
a
To liberate these legs a and b so as to be enabled to close them, it is only necessary
to lift the link c so that the notch h will be clear of the pin fas will be seen, and by
the slot in said c along which said pin fis allowed to pass the said legs a and b may
be made to come together.

page_text: Instead of the link c having a slot formed longitudinally therein said link may be
made solid as shewn by fig. 6, c¹, and have the notches iii formed in its lower edge,
said notches being made to hold of an arm of the loop k for the purposes above set
forth. The loop k forms a guide for and keeps said link c¹ in proper position.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :
1. The hinged link e having a longitudinal slot and a notch (or if desired more
than one notch) and the button headed pin fin combination with a step ladder,
tressel or easel substantially as set forth.
2. The hinged link c¹ having a notch or notches iii and the loop k in combination
with a step-ladder, tressel or easel substantially as specified.
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