Improvements in Folding Ladders.
Year: 1898

page_text: Date of Application, 1st Feb., 1898
Complete Specification Left, 1st Nov., 1898-Accepted, 23rd Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Folding Ladders.
I, FREDERICK BIRCH, of 25, Little London, Chichester, in the County of Sussex,
Valet, do hereby declare the nature of this invention to be as follows:-
My invention relates to folding ladders of the kind described in the Specification
of former Letters Patent granted to me No. 5498 of 1896, the object of my inven-
tion being to render the ladder more rigid under the weight of a person upon the
same than it is at present.
According to my present invention the rungs or front cross bars of the ladder
are connected by jointed stretchers in the same manner as the back cross bars
of the ladder described in the said former specification, whereby the dipping
or pulling forward of the rungs under weight or pull upon them is prevented.
When the upper part of my improved ladder is to extend through a window
the said upper part is made without the front jointed stretchers so that it will
bend,
The improved ladder folds up as formerly the side bars and stretchers at each
side being placed so as to lie together.
Improvements in Folding Ladders.
I, FREDERICK BIRCH, 25, Little London, Chichester, Sussex, Valet, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
My invention relates to folding ladders of the kind described in the Specifications
of former Letters Patent granted to me No. 5498 of 1896, the object of my inven-
tion being to render the ladder more rigid under the weight of a person upon the
same than it is at present.
According to my present invention the rungs or front cross bars of the ladder
are connected by jointed stretchers in the same manner as the back cross bars
of the ladder described in the said former specification, whereby the dipping
or pulling forward of the rungs under weight or pull upon them is prevented.
When the upper part of my improved ladder is to extend through a window
•
וני רי

page_text: the said upper part is made without the front jointed stretchers so that it will
bend,
The improved ladder folds up as formerly, the side bars and stretchers at each
side being placed so as to be together.
For purposes of illustration I will now refer to the annexed drawings, in
which:
Figure 1, is a front elevation of my invention.
Figure 2, side elevation of same.
Figure 3, side elevation shewing ladder partly collapsed.
a are the rungs which are pivotally connected to bars b forming a ladder, and
the bars c being pivotally connected together at d. By this arrangement it will
be seen that the ladder may be extended when required, being secured in position
by means of the hook e carried by the plate f which is secured to the window
sill g or other suitable position.
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
1 claim is:
1. In folding ladders of the class herein described, the construction and arrange-
ment of the various parts substantially as described and illustrated herein and
for the purpose set forth.
2. In folding ladders in combination: rungs pivotally connected to lattice bars,
rods or bars pivotally connected together and joining said lattice bars at the point
at which the rungs are pivoted thereto, substantially as and for the purpose set
forth.