Columns for Supporting the same.
Year: 1888

page_text: Date of Application, 25th Apr., 1888
Specification Accepted, 6th July, 1888
Columns for Supporting the same.
1, RICHARD EDWARD KEEN of Homewood, London Road, St. Leonards on Sea,
Gentleman do hereby declare the nature of this invention and in what manner the
same is to be perforined, to be particularly described and ascertained in and by the
following statement :—
My invention relates to lanterns designed for use with electric arc lamps, and to
posts for supporting the same.
The main object of my said invention is to provide a lantern for an electric arc
lamp, which will ensure an equal distribution of light and will obviate in a great
measure the existence of detrimental shadows.
My said invention comprises moreover other improvements hereinafter set forth.
In the accompanying drawing I have shown how my said invention can be con-
veniently and advantageously carried into practice.
Figure 1 is a front elevation partly in section illustrating one form of my improved
lantern.
Figure 2 is a side elevation partly in section, and
Figure 3 a front elevation showing part of a lamp-post provided with steps as here-
inafter described.
Figure 4 is a side elevation drawn to an enlarged scale showing a modification of
my improved lamp-post.
Like letters indicate corresponding parts throughout the drawings.
A is a portion of a lamp-post or column, B is the lantern, an electric are lamp.
a is a hollow T-piece screwed or otherwise attached to the upper extremity of the
lamp-post or column A. The horizontal arms of the T-piece a are provided with
reducing bends b to which are attached by means of screw-threads or otherwise the
lower extremities of the hollow or tubular supports c for the lantern B. The T-piece a
is moreover provided with a hole a¹ which permits access to the cables or conductors
within and which is closed by a cap or guard a² to prevent carbon dust or other
matter passing through the said hole and falling down the hollow portion of the lamp-
post or column A and thus interfering with the switches below. The upper
extremities of the said supports c are attached by means of screw threads or otherwise
to stays b. The stays are secured to a chimney by bolts or rivets or in any
other suitable manner. The upper part d of the lantern B is attached to insulating
material e and to the stays by means of bolts or rivets e¹. ddare cables or

page_text: conductors which are brought up through the lamp-post or column A, and through the
supports which are made bollow or tubular for that purpose. The cables or
conductors d' are thus efficiently protected against injury by a blow or by exposure to
the weather or to the heat from the arc.
I sometimes construct the top part or portion d of the lantern B of porcelain or
opaque glass so that the mechanism for feeding the carbons d² is concealed thereby,
thus avoiding the unsightliness existing where the said mechanism is exposed to view.
The are lamp C is suspended in the lantern B from insulating material e which is
preferably of porcelain, thus ensuring additional safety and obviating leakage in damp
weather. In some cases I hang the lamp C upon insulating blocks attached to the
stays b'.
Figures 2 and 3 illustrate part of a lamp-post or column for an electric arc lamp,
which post or column is provided with hinged or pivoted steps which enables the
attendant to ascend to the lamp without the use of a ladder, and which when not in
use may be turned up flush with the surface of the post or column and if desired
locked in this position. The step fis pivoted at 1 to lugs attached to or forming
part of the lamp-post or column A, and is provided with a shoulder f³ which, when
the step is down bears against the lamp-post or column A, and thus maintains the said
step fat right angles to the said post or column. When not in use the step f' is
turned up and fits into an aperture or recess g in the said post or column A. In some
instances I provide the steps f with a suitable lock, so that when not in use the said
step can be secured in the aperture or recess g.
Figure 4 shows a modification wherein the step fis readily removable from the post
or column. The said step, in this case, is provided with a projection adapted to fit
into a socket h formed on or attached to the lamp-post or column A. When not
required the step ƒ can be removed from the socket .
Steps similar to either of those above described can be placed at any convenient
distances apart upon the lamp-post or column A. When the said steps are made
removable I provide a box or holder in the lamp-post into which the said steps may
be placed and which is preferably provided with a lock and key, or the attendant can
carry the required number of steps with him from one lamp to another.
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 :-
First A lantern for an arc electric lamp provided with hollow or tubular
supporting rods secured to a hollow T-piece formed with a hole which is closed by a
cap or guard, substantially as, and for the purposes, set forth.
Second A lantern having an electric arc lamp suspended therein from blocks or
pieces of insulating material, substantially as, and for the purpose, set forth.
Third A lamp-post or column having steps connected therewith by hinge-joints
and adapted to enter apertures or recesses therein, with or without locks for securing
the said steps, substantially as, and for the purposes, set forth.
Fourth A lamp-post or column provided with sockets adapted to receive removable
steps, substantially as, and for the purposes, set forth.
Fifth The improved apparatus consisting of the parts constructed and combined
substantially as described with reference to Figure 1 of the accompanying drawings,
for the purpose specified.
"
Dated this 25th day of April 1888.
;
RICHARD EDWARD KEEN.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.