Improvements in Lamps or Lanterns.
Year: 1890

page_text: Date of Application, 10th June, 1890
Complete Specification Left, 30th June, 1890-Accepted, 2nd Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in Lamps or Lanterns.
I, TÖNNES ANDREASEN of 27, George Street, Cardiff, in the County of Glamorgan,
Ship Store Merchant and Ironmonger, do hereby declare the nature of this invention
to be as follows:-
My invention relates to lamps or lanterns which are specially designed for use as
ships side lights but which are also applicable for other purposes, the object of my
invention being to prevent the entrance of wind or water into lanterns more effectively
than heretofore.
According to my invention the upper end or ventilator of the lantern is provided
with a hollow cone through an opening at the top of which the products of combustion
escape and around this cone are placed two concentric cylinders secured near the base
of the cone and having a space between them. The inner cylinder is perforated and
closed at the upper end by a cap whilst the outer cylinder is provided with a series of
holes around its base.
With this arrangement the products of combustion pass through the hollow cone to
the interior of the inner cylinder and thence through the perforations thereof into the
space between the two cylinders whence they escape.
The probability of any water entering through the ventilator of the lantern is also
reduced to a minimum as the cone tends to prevent the water from entering the
lantern.
In case, however, water should pass through the cone I prevent it from falling
onto the flame of the lamp by suspending above the lamp flame a dish or guard.
Dated the 10th day of June 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Lamps or Lanterns.
I, TONNES ANDREASEN, of 27, George Street, Cardiff, in the County of Glamorgan,
Ship Store Merchant and Ironmonger, 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:-
My invention relates to lamps or lanterns which are specially designed for use as
ships' side lights but which are also applicable for other purposes, the object of my
invention being to prevent the entrance of wind or water into lanterns more effectively
than heretofore, ant to thus provide a lamp which will burn equally well in fair or
rough weather.'
According to my invention the upper end or ventilator of the lantern is formed
with the usual hollow cone through an opening at the top of which the products of
combustion escape; around this cone I place two concentric cylinders secured at the
base of the cone and having a space between them. The inner cylinder is perforated
and closed at the upper end by a cap, whilst the outer cylinder is provided with a series
of holes around its base.
Above the lamp flame I suspend a deflector or guard which will prevent down
draught acting on the flame and will also prevent any water which might pass through
the cone from falling onto the flame of the lamp.

page_text: To enable my invention to be fully understood I will describe how it can be carried
into practice by reference to the accompanying drawing in which-
Figure 1 is an elevation :
Figure 2 is a vertical section; and,
Figure 3 is a plan of a ship's side light or lantern provided with my improvements.
Similar letters in all the figures indicate similar parts.
a is the body, 6 the glass, c the lamp, d the door of the lantern, and e the hollow
cone fixed to the top of the conical upper portion of the body a, all of the usual con-
struction.
and are the two concentric cylinders which I place around the cone e and secure
directly at the base thereof to the body a of the lantern; indicates the annular space
between the cylinders f and g; i, i, i are the perforations or holes in the inner
cylinder, and is the cap whereby the upper end of the cylinder is closed. This
cap is hinged to the said cylinder at k, and is provided with the usual loop to allow
of it being raised when required; m, m, m are the holes around the base of the outer
cy linder 9.
20°
n is my deflector or guard which I suspend above the lamp c, it being connected to
the body of the lantern by means of metal strips o rivetted thereto or in any other
suitable manner.
i
By this arrangement the products of combustion pass up through the hollow cone e
in the direction of the arrows to the interior of the inner cylinder and thence through
the holes thereof into the space between the two cylinders whence they escape at the
upper end: any down draught is prevented from acting on the flame by my deflector
or guard n. Water which might enter the annular space h will generally pass off
through the holes m, but if any should enter the inner cylinder through its holes i
the cone e will reduce the risk of it entering the lantern to a minimum. Should,
however, a small quantity pass through the cone e it will be caught by my deflector
or guard n and be thereby prevented from falling onto the flame of the lamp c.
I find it advantageous to employ a sliding door such as d as this allows of the door
being left open in calm weather for the purpose of keeping the lantern cool.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is
1. A lamp or lantern baving a deflector or guard suspended above the lamp flame
for the purpose set forth.
2. In laps or lanterns the combination with the hollow cone, having two con-
centric cylinders placed around the cone, the said cylinders being secured and perforated
in the manner described, and the inner cylinder being closed and the outer cylinder
open at their upper ends, of a deflector or guard such as described, substantially as,
and for the purpose, set forth.
3. The improved ship's light or lantern hereinbefore described and illustrated in the
accompanying drawing.
Dated the 28th day of June 1890
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.