Improved Cleaning Apparatus for Miners' Lamp Glasses.
Year: 1899

page_text: Date of Application, 2nd Mar., 1899-Accepted, 1st July, 1899
COMPLETE SPECIFICATION.
Improved Cleaning Apparatus for Miners' Lamp Glasses.
We, LUDWIG BECKMANN, of 5, Schulstrasse, Schalke, Brazier, and AUGUST
SINAGOWITZ, of 9, Vereinstrasse, Gelsenkirchen, Miner, both in the Empire of
Germany, 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 object of this invention is intended to effect the cleaning of miners lamp
glasses, which soon become black, and thus diminish the effect of the light, with-
out its being necessary to open the lamp in the mine, whereby explosions are so
often caused.
It consists in the arrangement of a cleaning apparatus in the lamp glass by
means of which it is possible to clean the glass at any time whilst the lamp is
closed, so that the slightest trace of danger from fire-damp can be prevented.
Attempts have frequently been made to reduce the possibility of explosions
to the minimum by means of such a cleaning apparatus.
In the present invention, as will be seen by the following specification, the
object has been by means of a suitable arrangement to keep the cleaning material
always in close contact with the inner circumference of the glass, a complete clean-
ing of which is thus ensured. The object of the invention is illustrated in the
accompanying drawing:
Fig. 1, is a cross-section of the lamp and the cleaning apparatus.
Fig. 2, a plan of the latter.
The cleaning apparatus consists of a disc a around the outside of which is a
groove or grooves. In these the actual cleaning material, oakum, etc., is placed.
In the drawing, the disc or cleaner a is shewn by way of example, as consisting
of three parts, as will be seen by Fig. 2; the several parts being pressed asunder
by means of springs 6 placed at the back, consequently the cleaning material sur-
rounding the divided disc a is kept continually pressing against the glass. The
disc shaped parts c & d are connected by means of a screw-thread with the ring e
that surrounds the wick. With this ring, the rods f, which effect the upward and
downward movement of the cleaner, engage. In the form illustrated by way of
example, the cleaner is moved from below, and the rods are worked by hand. By
a right-turn of the tubes h seated in the cross-piece g the pins on the rods f are
brought into the longitudinal grooves of the tubes h so that the cross-piece g can be
drawn out. If now, a left turn be given, the connection of the tubes h with the
rods f is again established, and the cleaner can be moved upwards and downwards
by means of the cross-piece g. The apparatus can be operated in the same manner
from above.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
Cleaning apparatus for miners' lamp glasses, distinguished by the arrangement
of a cleaner a, composed of one or more parts, furnished with grooves for the recep-

page_text: tion of the cleaning material, and pressed by means of springs against the inner
circumference of the lamp glass, such cleaner being movable upwards and down-
wards, when the lamp is closed, by means of rods worked from above or from
below, substantially as shewn and described.
Dated thin das & Manak 1000
HUGHES & YOUNG,
55 and 56, Chancery Lane, London, W.C., Agents.