Improved Extinguishing Attachment or Device for Lamps.
Year: 1893

page_text: Date of Application, 20th Mar., 1893-Accepted, 13th May, 1893
COMPLETE SPECIFICATION.
Improved Extinguishing Attachment or Device for Lamps.
A communication by THEODOR GAUSS and CHRIST. ELSÄSSER, both of
Pforzheim, in the Grand Duchy of Baden, in the Empire of Germany,
Merchant and Manufacturer respectively.
1, WILLIAM PHILLIPS THOMPSON F.C.S., M.L.M.E., of the Agency for
Foreign Patent Solicitors, 6 Loni Street, Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster, and 323, High Holborn in the
County of Middlesex, Civil Engineer, 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:—
The peculiarity of the invention consists in the fact that it can be applied to any
lamp in the most convenient manner and is by and in itself actually the simplest of
the numerous extinguishing attachments or devices which have been hitherto known
or employed.
On the accompanying drawings, this extinguishing attachment device is shown as
applied to a round burner, and
Figure 1 shows the state of the lamp when this device is to be employed.
Figure 2 shows the process of extinguishing the light, and
Figure 3 shows the lamp when the light is extinguished, that is to say, the upper
surface of the wick is completely covered with the extinguishing plate.
The extinguishing attachment on device consists of an annular extinguishing
cover A which has at its sides two arms A' with slots a', through which two
pins fixed on the wick tube B pass, which pins serve as guide points for the
extinguishing cover. The two arms A' extend at their free ends in the shape of
a knee and both the knees a are connected with chains ', which further down
extend into a common chain k, which is carried to the outside through one of the
openings of the lamp burner.
When the lamp is in use, the extinguishing plate cover A rests by the side of
the wick tube and hangs on the pins at the lower end of the slots a'. In this
position, the knee ends a of the arms A' are directed vertically upwards whilst the
chains or hang vertically downwards. If the chain & be pulled, the extinguishing
cover A then rises, having as a fulcrum, so far that (see Figure 2) when the chain
is further pulled the extinguishing cover slides downwards by means of the slots a
and in consequence of its own weight lies flat on the upper surface of the wick
(see Figure 3) and extinguishes the flame.
In order that the extinguishing cover shall not be drawn slopingly against the
wick tube and remain in this inclined position, the slots a' are at their lower end
preferably enlarged so that the extinguishing cover, by turning in the same,
rests in a more vertical position before its slides in the slots.
When lighting
the lamp the extinguishing cover is always brought into the position shown in
Figure 1.
The extinguishing device instead of being employed for round burners, as
shown in the drawing, may also be simply employed for Hat burners by giving the
extinguishing plate a rectangular instead of an annular form. The actual plate
which produces the extinction of the lamp in the case of round burners may be
made circular instead of annular.
Having now particularly described and ascertained the nature of the said inven-
ion, and in what manner the same is to be performed, as communicated to me by
ny foreign correspondents, I declare that what I claim is-
An extinguising attachment or device for lamps, the extinguishing plate of which

page_text: has two arms through the slots of which two pins serving as hinge or guide points
attached to the lamp pass, the plate, when the lamp is in use, resting sideways against
the wick tube, but capable of being drawn up by means of a chain or the like
connected with the ends of the arms, when the extinguisher can then slide down on
the pins upon the upper surface or edge of the wick tube, and thereby extinguishes
the lamp snbstantially as described.
TA: 10.1.1002
WM. P. THOMPSON & Co.,
Agents for the Applicant.