Improvements in Lamps for Use on Board Ship for Signalling, like- wise Applicable for other Purposes.
Year: 1889

page_text: Date of Application, 25th Apr., 1889-Accepted, 6th July, 1889
Improvements in Lamps for Use on Board Ship for Signalling, like-
wise Applicable for other Purposes.
I, EDWIN MARTIN of 68 West India Dock Road, E., in the parish of Limehouse
and County of Middlesex, Lamp Manufacturer, do hereby declare the nature of
this invention and in what manner the saine is to be performed, to be particularly
described and ascertained in and by the following statement and accompanying
Drawing
:-
I form the body of a Lamp of any convenient or suitable form or shape for the
particular purpose intended with an outer lense and inner glass, both of which are so
shaped as to form part of a circle. The outer glass or lense being fixed in a hinged
frame or otherwise secured while the inner glass or lense is securely fixed in a frame
connected or attached to both sides of the body of the Lamp so as to leave a clear
space between the glasses to allow the Oxygen gas to freely pass around and between
their respective inner and outer surfaces, thereby keeping them in a very cool
condition.
I fix to the front corners of the Lamp body just within the inner or fixed glass
and frame, a curved protector or shield plate or frame fitted to the top of the said
glass and frame, and inclined radially toward the corner or back of the lamp thus
forming a protection against any sudden gust of wind or downpour of water entering
from the top of the Lamp inwards and so interfering with or extinguishing the
light.
At each side of the radial protector plate and body of the Lamp a space is formed
to allow the heat to escape outwardly, while no down draught can prevent it from
escaping, being protected by a Protector plate or plates; a row of holes are formed
at the bottom of the Lamp between the two glasses or lenses permitting of a free
current of cool air to enter and pass between the same to the Chimney or uptake,
thus giving a continuous circulation or current of air and ensuring thorough
combustion.
I further provide for this purpose a series of small holes in the bottom of the
Lamp and at the top or cover of the Lamp I form a series of slots or holes. The
upper or top part of the body of the Lamp I form with an inner and outer case
leaving a space between same which assists in the upward escape of the smoke and
heat, the inner portion forming the chimney may be conically formed and the outer
secured by connections to the outside or body of the Lamp.
The top or cap of the Lamp is fitted with a hinge and catch so as to be opened
and closed from time to time and the cone formed at the under portion of the top
cap or cover is fitted so as to meet or come into contact with the uptake or cone
portion of the chimney.
•
The inner Lamp or Oil cistern and burner is so constructed in connection with the
enses as to give ten or twenty points of light if needed according to the require-
nents of the Board of Trade or Lloyds register of Shipping, and the reflector is so
ixed in a proper focus as to bring its rays from each edge of the Lamp and to
xhibit either ten or twenty points as desired, while the burner and reflector is so
ixed as to form part of a circle.
In the accompanying Drawing Figure 1, exhibits a Longitudinal Section of a
Ships Lamp for Signalling purposes. Figure 2, is a sectional plan taken on the
ne A-B of Figure 1, and Figure 3, is a sectional plan taken on the line C-D,
herein the following letters of reference refer to like or corresponding parts.
is the body of the Lamp. B, is the outer glass or lense fitted in a hinged or
ther frame, capable of being opened for cleaning purposes. C, is the inner glass
lense fitted in a fixed frame connected to the sides of the Lamp in manner

page_text: or
shewn. D, is the space or recess formed between the inner and outer glasses or
lenses. E, is a curved protector or shield plate fitted to the top of the frame of
the inner glass C, and to the corners or sides of the Lamp body A, and is inclined
radially and deflected toward the back portion of the Lamp, preventing either wind
rain from entering inwards toward the burner. F, are holes or openings
formed at the bottom of the Lamp in the space D between the inner and outer
glasses for the entry of air up and between them. G, are a series of small holes
in the bottom of the Lamp space wherein the burner and Oil chamber is placed.
H, is the upper portion of the Lamp forming the Chimney and may be conically
formed. J, is an outer case or cap fitted over the conical portion of the uptake H,
and leaving a space K, between same to permit of a current of air passing around
and through. L, is the top or hinged cap of the Lamp so as to be opened and closed,
and has at its under part a cone M, to meet with the uptake or cone portion of the
Chimney H. N, is the reflector fitted as shewn to the oil chamber O.
The curved protector or shield plate or frame E, fitted as shewn to the side of the
Lamp and to the upper part of the inner glass or lense C, and the extra space given to
the body of the Lamp enables a larger light to be burned inside, at the same time
being fully protected from any down draught or wet and permits of the smoke and
heat readily escaping.
The inner glass or lens C, may be of any desired colour for outward signalling.
P, shews the protector plate or plates to further prevent the down draught inter-
fering with the escape of heat.
Lamps formed in manner described will be found to give a very superior steady
light which cannot be interfered with in any way by the violence of the weather
(either of wind or water) however severe it may be, and invaluable especially for
Ships use where a reliable steady light is required to prevent collissions at Sea.
For Land use and for every description of Lamp the principle herein described
to produce an inextinguishable Safety Lamp may be readily adapted.
Having now described and illustrated the nature and principle of my said
Invention I wish it to be understood that what I claim is :-
Firstly, the manner of forming or constructing Ships Signal Lamps or Lanterns
as well as other classes of Lamps or Lanterns substantially in manner herein illus-
trated and described so as to render them in every way when in action incapable of
being interfered with by weather.
Secondly. By the arrangement or disposition of the reflector and burner with
the outer glass or lense so as to focus and give a perfect series of rays of light.
D
051 .
A 1 1000
EDWIN MARTIN.
Frederic H. Roberts, C.E.,
Agent.