Improvements in Street and other Gas Lamps.
Year: 1890

page_text: Date of Application, 2nd Sept., 1890-Accepted, 4th Oct.. 1890
COMPLETE SPECIFICATION.
Improvements in Street and other Gas Lamps.
I, HERMANN SUHR, of Zollvereinsniederlage, Hamburg, in the Empire of Germany,
Manufacturer, do hereby declare the nature of my 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 regenerative gas lamps and the like and consists principally
in the method of admitting and preheating the fresh air, which is intended to touch
the lower part of the flame.
This quantity of air, which is intended to touch the lower or outer part of the
flame, has been usually admitted direct into the globe with the lamps used heretofore
with an outwardly spreading flame, without said globes being submitted to any special
preheating.
The invention further consists in providing the lamp with a protecting lid for
A further
preventing the admission of rain when the lamp is for outdoor use.
improvement consists in connecting this lid with the cock of a supplementary burner,
which serves for lighting the lamp to put said burner in action.
The lamp is represented in the accompanying drawing as a street lamp; the drawing
being a longitudinal section of the lamp.
To the metal-frame A A' are attached below the inner and outer glass-globes B, B¹.
Within the inner globe is located the burner C, which receives the gas from above by
the pipe d, which is in connection with the main supply pipe by means of the
lateral pipe . E is the main-cock for the gas-supply to the burner. The fresh air
enters from above at h into the hollow space between the metal-plates A A² and
travels in the direction of the arrow in zig-zag fashion through concentric metal
rings, partly through the channel and to the upper surface of the flame f
partly through openings in the lower metal-frame A passing a horizontal
deflecting plate and entering the inner globe B it passes here along the outer
surface of the flame.
The openings m m in the lower metal frame A' permit part of the air on its way to the
flame to travel through the outer glass-globe, partly to cool the same and to protect it
from cracking, partly for the purpose of preheating the globe B.
The escaping gases leave by the channel p in the chimney P. The chimney P is
encircled by a larger tube P concentric therewith, which is closed above by a lid Q
moving on a hinge L. This lid Q has a conical upper protector and has at the widest
part the intermediate plate n which prevents the rain from entering the lamp, whilst
the escaping gases can leave by the tubes kk which are located underneath the slant
of the protector and are thus protected against the entry of rain. In the lid are
arranged further the wire-sieves 1, 2 and 3, through which the escaping gases
pass.
In order to light the lamp and to work it, the supplementary burner a is arranged
below in the chimney P, being in connection with the gas-supply pipe by means of the
pipe y and the cock. Upon opening the lid Q said cock z is opened at the same time,
the latter being in connection with the lid by means of the levers o and o¹. When the
lamp is to be used the lid Q is opened whereby the gas is admitted to the supple-
mentary burner and the gas of the supplementary burner is lighted from above through
the chimney P. After the supplementary burner has been lit the main cock is opened
which admits the gas to the burner C, which is lighted by the supplementary flame.
The lamp is thus fully lighted, the supplementary Hame has caused the circulation of
air above the burner C by means of its central arrangement, the lid Q is then shut
whereby the supplementary flame is extinguished at the same time.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. With a lamp with the preheating of the burning air the method whereby a
part of the fresh air preheated in the concentric heater, is caused to escape by means
of openings as into the globe, being there deflected by a plate e, for the purpose of
touching the flame at its outer side with prebented fresh-air-currents.
2. The combination of a regenerative or like lamp of a lid hinged at or over the
chimney thereof, which lid is provided with a conical protector towards above with an
intermediate plate n in the wider end having vertical tubes kk under said protector
for outlet of the gases.
3. In a regenerative or other street gas lamp the combination of a movable
protecting cover or hood with the cock of a subsidiary or lighting burner whereby
the opening or removing of said cover causes the supply of gas to said burner
for permitting the lighting thereof for the automatic lighting of the principal burner,
and the closing of said cover causes the extinguishing of said subsidiary burner for
the purpose set forth.
L
com1000
HERBERT & Co.,
18, Buckingham Street, Strand, London, W., Agents for the Applicant.