Year: 1886

page_text: Date of Application, 14th May, 1886
Complete Left, 26th Jan., 1887.
Complete Accepted, 1st Mar., 1887
WILLIAM PATTERSON Victoria House Low Fell County of Durham Sewing Machine
Agent, do hereby declare the nature of this invention to be as follows :-
I construct a Lamp which by the removal of the bottom or oil vessel converts it
into a case in which any Safety Lamp now in use can be inserted fixed or placed, by a
Male and Female screw or other suitable means to make it secure and air tight.
The case of the said Lamp is constructed partly of Sheet Iron, Brass, Copper, Tin,
or other suitable metal and partly of Glass.
The upper part of the case is made with holes slots or outlets necessary to carry off
the products of combustion. Adjacent to these holes or outlets is a Ring or Jacket
made of Brass or other suitable metal which can be moved up or down to the right or
left so as to cover the said outlets.
The bottom or lower part of the case is made of Brass or other suitable metal with
holes slots or inlets sufficiently large and numerous to admit air to support combustion
adjacent to these holes slots or inlets is a Ring or Jacket which can be moved up or
down to the right or left to cover the said holes or inlets and the said upper and
Lower Rings are connected so as to be moved separately or simultaneously.
I fix or fasten the bottom of the case to the upper part by means of pillars or bolts
and nuts. And in between the bottom and top I place a Circular, Square, or other
shaped Glass, with asbestos or other kind of washer at each end or sides of the said
Glass, the whole of which I secure in position and make air tight by means of a Brass
or other kind of washer. screwed into the bottom or lower part of the Case or other
suitable means to hold the Glass in the said position.

page_text: WILLIAM PATTERSON Victoria House Low Fell, Co. Durham Machine Agent do
hereby declare the nature of my invention for IMPROVEMENTS IN MINERS SAFETY
LAMPS 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 improvements in Miners Safety Lamps and has for its
object the arrangement of a lamp case of the claney lamp type.
This Lamp case is so arranged that it may be fitted with any kind of lamp bottom
or oil vessel and when so fitted may be used with safety in high velocities of air
currents and if mixed with inflammable gas the Lamp will go out automatically and
thus more effectually prevent explosions in coal mines.
To accomplish this I make it in the following manner:
The body of the Lamp case is a metalic cylinder and is-marked A-Inside this
cylinder is a wire gauze B-This wire gauze extending upwards to a suitable point
from the face of the metalic ring (which ring also surmounts the glass or glasses D
at top of Metalic Cylinder A-is fixed a perforated Metalic ring E-This ring also
having a moveable outer ring or Jacket F-This Jacket being correspondingly per-
forated to allow the escape of the products of combustion and can be moved to the right
or left to prevent the escape of combustion. This ring E-is secured to the cylinder A-
by means of a screw and rivet G-Air to support the flame passes into the interior of
the Lamp case through openings in the outer ring H-Then through wire gauze J-
Then through perforations in the inner ring K-Then again through perforations of
the innermost ring L-making in all four passages for the air to pass through before
it reaches the light. The ring K-supports the glasses marked D D,-and is held in
position by the screw M-The innermost ring marked L-
-moves to and fro in the
ring K and is kept in position by three studs or pins N-fixed in the ring K-and
moves in slots 0-in the ring L-The innermost ring L-is kept with its perforations
correspondently open with the ring K-by means of a Compound rod or stretcher P-
This metallic rod is stretched in a sort of semi-circular direction fastened to the
studs or pins N-in the rings K-and L-when an inflammable mixture of gas is
admitted into the Lamp case it begins to burn and burns the Metallic rod or
stretcher P-before any other mischief can be done and thus frees the innermost
ring which is at once moved with its solid part over the perforations in the
ring K by means of the spring marked R-Thus shutting off the admission of both
air and gas into the Lamp case and the Lamp at once ceases to burn.
Of course it will at once he apparent that I do not restrict myself to the absolute
position of the rings K-and L-as the said rings with the spring R-and studs N-
are placed in a vertical position as shown in Fig. 1. (which position I prefer) for the
following reasons. 1st The spring is away from the heat hence is not effected by it.
2nd The metallic rod or fusible stretcher is also away from the ordinary heat of the

page_text: Lamp as it is placed in the immediate vicinity of the inlet of cold air. 3rd The
joints of the rings K-and L-are not likely to get dirty which might interfere with
their working freely.
I can also place the Ring L-and fusible Rod or streicher P in a horizontal position
as shown in Fig. 2.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is
1st. A double ring inside the Lamp Case, both rings being sufficiently perforated
to admit the air to support the flame The outer ring having a strip of Gauze around
the periphery of the same.
2nd. The moveable inner ring.
3rd. The spring encased which moves the inner ring.
4th. The studs or pins guiding the movements of the inner ring and spring.
5th. The metalic or fuseable rod (compound).
6th. The moveable jacket at top of Lamp Case.
I claim the improved arrangement construction and combination of parts forming
the improved Miners Safety Lamp Case arranged to act substantially in the manner
herein before described and represented in Figs. 1 and 2. of the drawings hereto
annexed.