Improvements in Apparatus for Preventing the Slipping of Ladders and the like.
Year: 1894

page_text: Date of Application, 28th Sept., 1894
Complete Specification Left, 27th June, 1895-Accepted, 3rd Aug., 1895.
"
TRUVIDIONAL DETEICATION.
Improvements in Apparatus for Preventing the Slipping of Ladders
and the like.
We, JAMES ARNOTT of Harlow Terrace,, Harrogate, Civil, Engineer, and JOHN
SKIRROW of North Street, Leeds, Plumber, both in the County of York, do
hereby declare the nature of this invention to be as follows:-
•
The object of our invention is to provide apparatus whereby ladders are
prevented from slipping when erected on street pavements or other places.
According to our invention we construct a shoe or cap' of india rubber or other
analogous material, the underside of the said shoe or cap having a concave or
cupped surface in the form of a sucker. The upper edge of the said shoe or cap
is provided with a rim or flange suitably shaped to embrace a side frame of the
ladder, whilst screws or other clamps may be employed to hold or fasten the said
shoe thereto.
One of these shoes or caps is firmly fixed or attached to each of the side frames
forming the foot of the ladder,, and when employed on a smooth pavement, the
suckers prevent the ladder foot from slipping owing to their sucking action; and
should the ground be uneven, the irregularities are taken up by the elasticity of the
rubber or other analogous material.
1
By the employment of the above described apparatus, the holding or wedging
of the foot of the ladder hitherto necessary. for its safety, is entirely dispensed
with.
Doted this 99th dor of Cantombor 1904
BREWER & SON,
London and Leeds, Agents for Applicants.
Improvements in Apparatus for Preventing the Slipping of Ladders
and the like.
T
We, JAMES ARNOTT of, Harlow Terrace, Harrogate, Civil Engineer, and JOHN
SKIBROW of North Street, Leeds, Plumber, both in, the County of York, lo
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
%
if 11
The object of our invention is to provide apparatus in connection with ladders,
whereby they are effectively prevented from slipping" when erected on street
pavements or on other foundations.
IL
In order that our invention may be clearly understood, we will proceed to
describe same with reference to the accompanying drawinge, in which similar
letters refer to like parts in all the figures.
Fig. 1 is a front elevation partly in section, and Fig. 2 is a side elevation of
apparatus constructed according to our invention. Figs. 3, 4, and 5 shew its
application.

page_text: According to our invention we employ a shoe A of india-rubber or other analogous
material, the underside of the said shoe being capped or dished out, so that the
edges of the shoe only come into actual contact with the ground, thereby forming
"sucker" of considerable power. The upper part of the shoe A is made with
bevel sides, which take into the bevelled interior of a bracket B, after which the
said shoe A is securely held in position therein by means of a pin C.
To the bracket B we hinge an arm D by means of a bolt or pin E, and on this
arm D we mount a bracket F which is firmly attached to a foot G of the ladder.
The arm D is capable of adjustment up or down in the bracket to any desired
position, and holes D' are provided for the reception of a pin H which passes
through the bracket F and arm D into the ladder foot G, thus firmly clamping
same in the position required. The distance between the foot G and shoe A is thus
readily adjusted to suit varying circumstances, and the arm D is prevented from
passing out of the bracket F by means of a projection D' at its upper end.
Each foot is mounted in the above described manner, and when the ladder is
employed on a level foundation, the shoes A are in equal relative positions as
shown at Fig. 3; but when the ladder is employed on a sloping foundation as
shown at Fig. 4, the shoes A are easily and quickly adjusted to suit the variation
in height of each foot G.
at
By constructing ladders as above described they can be erected on the foundation
any desired angle without in any way interfering with the action or position of
the shoes A; an illustration of this being shown at Fig. 5.
In some cases it may be desirable to provide the head or upper ends of ladders
with shoes A, so that when the ladder is erected against a wall or other surface,
the shoes come against such surface as shown at Fig. 5, thereby effectually
preventing any slipping of the ladder taking place.
It will be readily understood that the shoes A above described, owing to their
dish like formation, adhere to or take hold upon the foundation or surface to which
they are applied in a similar manner to that of a sucker, thereby holding the
ladder perfectly stable in any desired position; and should the surface to which
the shoes are applied be uneven, the irregularities are taken up by the elasticity
of the rubber or other analogous material forming the shoes.
The above described arrangement dispenses with the wedging of the ladder foot
by packing pieces, and the guarding or holding of the foot by an attendant, which
has hitherto been necessary for the safety of the ladder, is entirely obviated.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. An india-rubber shoe for ladders and the like having the underside cupped
for the purpose of forming a sucker for preventing slipping, substantially as and
for the purposes set forth.
2. An apparatus for preventing the slipping of ladders and the like, consisting
of an india-rubber cupped shoe, held in position by a bracket which is adjustably
attached to the foot of a ladder, substantially as set forth.
3. The combination of the shoe A, bracket B, pin C, arm D having pin
holes D', bracket F, pin H, and ladder foot G, substantially as and for the purposes.
set forth.
Dated this 27th June 1895