An Improvement in Posts for Carrying Electric Lights and such like purposes.
Year: 1891

page_text: Date of Application, 19th June, 1891
Complete Specification Left, 26th Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
An Improvement in Posts for Carrying Electric Lights and such
like purposes.
We, WILLIAM HAYWOOD, of The Guildhall, in the City of London, Lieutenant
Colonel and Civil Engineer, and CHARLES HENRY DRIVER of No. 12 Victoria
Street, Westminster, in the County of Middlesex, Fellow of the Royal Institute
of British Architects, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a construction of posts for carrying electric lights and
such like purposes in such manner that the top of the post is casily accessible
without requiring a separate ladder, but that the means by which the post is
ascended are hidden except when they are in use.
For this purpose, the post, preferably of circular section, is made hollow and
throughout most of its length has vertical slots opposite to one another. On a
number of horizontal pivots are mounted radius arms, the outer ends of which are
jointed to bars, one on each side of the post, which can move like the blades of a
parallel ruler. Usually they fit into the two slots of the post, in which case the
arms are all contained within the post; but, when one of the pivots is partly turned
by a key or otherwise, the two bars and their arms are caused to project outwards
from the post on opposite sides, the arms serving as a ladder by which the post can
readily be ascended.
Dated this 19th day of June 1891
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improvement in Posts for Carrying Electric Lights and such
like purposes.
We, WILLIAM HAYWOOD of The Guildhall in the City of London, Lieutenant
Colonel and Civil Engineer, and CHARLES HENRY DRIVER of No. 12 Victoria
Street, Westminster in the County of Middlesex, Fellow of the Royal Institute of
British Architects, 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 :-
This invention relates to a construction of posts for carrying electric lights and
such like purposes, in such manner that the top of the post is easily accessible with-
out requiring a separate ladder, but that the means by which the post is ascended
are hidden except when they are in use.
For this purpose the post, preferably of circular section, is made hollow and
throughout most of its length has vertical slots opposite to one another. On a
number of horizontal pivots are mounted radius arms, the outer ends of which are
jointed to bars, one on each side of the post, which can move like the blades of a
parallel ruler. Usually they fit into the two slots of the post, in which case the
arms are all contained within the post; but, when one of the pivots is partly turned
by a key or otherwise, the two bars and their arms are caused to project outwards
from the post on opposite sides, the arms serving as a ladder by which the post can
readily be ascended.
Fig. 1 of the accompanying drawings is a vertical section of a post according
to this invention with its radial arms extended so as to form rungs of a ladder.

page_text: Fig. 2 shews the arms folded in.
Fig. 3 is a vertical section on a transverse plane, with the arms removed.
The post A, which may be of circular or other section ornamented with mouldings
or otherwise, has its two opposite sides made as open grooves in which fit bars B.
These bars are jointed to the radial arms R which are pivotted on pins P arranged
at intervals along the middle of the post.
The upper and lower pairs of radial arms R' and R² are each pair in one piece
connecting the two bars B B so that they must move together, either outwards to
the position shewn in Fig. 1, in which case the radial arms form rungs of a ladder,
or inwards as in Fig. 2 when all the arms are enclosed within the post. In order
to hold the bars in position a pin C may be inserted through holes in the post and a
corresponding hole in one of the lower radial arms.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
-
A post for carrying electric lights and such like purposes having bars sunk in
grooves at its opposite sides and jointed to radial arms so that they can be opened
out, exposing the radial arms to serve as ladder rungs, substantially as herein
described.
יהוט
201 1
f
1000
ABEL & IMRAY,
Agents for the Applicants.