Year: 1887

page_text: Date of Application, 23rd June, 1887
Complete Left, 23rd Mar., 1888
Complete Accepted, 22nd June, 1888
I GEORGE SMITH, of 35 Halton Road, Canonbury in the County of Middlesex,
Commission Agent do hereby declare the nature of this invention to be as follows:-
:-
The object of this invention is to produce a cheap, durable, and efficient appliance
for automatically extinguishing the flame of lamps for burning paraffin or other oils
should the lamp be inclined beyond a certain angle, or inadvertently upset, thus
preventing accidents, which not infrequently terminate fatally; which extinguishing
appliance may be sold separate, and be readily applied to any ordinary Lamp in a
few minutes, without the aid of skilled labor, and at a trifling cost.
In carrying out my invention as applied to a Duplex Lamp, I place over the wick
holders, a pair of loosely fitting tubes, which are secured together by an inverted
V-shaped connection. Beneath this connection, and secured to a plate resting on
the lamp gallery, is a pair of standards, each carrying a lever, the inner ends of
which are connected by a wire and short chain to a weight, as will be hereafter
explained.
A hole is made in the centre of the gallery to admit a small threaded conical tube,
which is screwed to the plate carrying the standards for the lever arms.
Pendent from this conical tube is a stout piece of wire carrying at its bottom the
weight, and fastened to the top of this weight is another piece of stout wire bent to
the form of an inverted V or U, to which the chain, with the wire which operates
the lever arms, is attached.
When it is desired to apply my invention to an ordinary lamp, I first remove the
gallery, and pierce a hole through the centre sufficiently large to admit the threaded
conical tube carrying the weight and other appendages, which conical tube is secured
in place by the plate carrying the standards and lever arms, such plate being threaded
to receive the same. The wire for operating the lever arms is passed down the
conical tube at the time of screwing it to the plate, and is secured to the chain.
The sliding tubes are then placed over the wick holders, and the lamp is ready
for use.

page_text: The operation of the mechanism, when extinguishing the lamp, will be as follows:-
Should the lamp be tilted, the weight will immediately incline in the same direction,
which causes the apex of the inverted U or V shaped piece of wire to move in the
opposite direction, and pull on the chain, thus forcing up the lever arms, and with
them the sliding tubes, by which means the flame is extinguished.
I would remark that I do not limit myself to the precise construction of
extinguishing mechanism described, as it is capable of some slight modifications,
but the construction herein specified I have found to act efficiently.
My invention is applicable both to flat and round burners.
When the light is no longer required, instead of blowing down the chimney to
extinguish it, I provide a forked lever, the arms of which are loosely secured to either
of the sliding tubes, tho other end protruding from the lamp gallery opposite the wick
operators, the depression of which forces up the sliding tubes, and thus extinguishes
the light.

page_text: I GEORGE SMITH of 35 Halton Road, Canonbury, in the County of Middlesex,
Commission Agent 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 to produce a cheap, durable, and efficient appliance
for automatically extinguishing the flame of lamps for burning paraffin or other oils,
should the lamp be inclined beyond a certain angle, or inadvertently upset, thus
preventing accidents, which not infrequently terminate fatally; which extinguishing
appliance may be sold separate, and be readily applied to any ordinary Lamp in a
few minutes, without the aid of skilled labour, and at a trifling cost.
In carrying out my invention as applied to a Duplex Lamp, I place over the wick
holders, a pair of loosely fitting tubes provided with shutters in the well known
manner, and connected together by a suitable connecting piece.-To a plate which
rests on the body of the lamp burner, between the wick tubes, I may secure a pair of
standards, each carrying a lever, the inner ends of which are connected together, and
to a weight, by a wire or chain, while the outer ends take under the connecting
piece.
A hole is made in the centre of the body to admit of a small threaded conical or
straight tube being passed through and screwed to the plate between the wick tubes.
Pendent from this tube is a wire frame or support carrying the weight, and secured
to the top of this weight, and spanning the wire frame, is a bridge piece of wire, to
which the chain or wire which operates the lever arms is attached.
As the weight swings, the lever arms raise the extinguisher tubes, and put out the
light in a manner now well known.
Or I may employ a straight rod which passes up through the tube, and under the
action of the weight acting on a ring carried by the rod, bears against and presses up
the connecting piece, and with it the extinguisher tubes.
In the accompanying drawing ;-
Fig. 1 is a sectional elevation of part of a duplex lamp with my invention applied
thereto.
Fig. 2 is a side elevation of a slight modification; and
Fig. 3 is a partial sectional elevation taken at right angles to Fig. 2.
A is the reservoir of the lamp, B the body of the burner, and C the wick tubes, all
of which may be of the ordinary construction.
a is a plate which is placed between the wick tubes, and b is a second and
strengthening plate placed below the body, the two plates being connected together
by the conical or straight tube c, which is threaded at its upper end to screw into the
plate a, and is provided with a flange or collar which bears against the lower plate b
when the tube is screwed up.-a are standards secured to the plate a, and which
carry the fulcra of two slotted levers d d.-To the lower end of the tube c, is attached

page_text: a wire frame or support e, from which is suspended a weight f―This weight
carries a wire bridge piece f¹, which spans the frame or support e, and to the
top of this piece f₁ is connected, by means of a wire or chain, the inner ends of
the slotted levers d d.
The extinguisher consists of two tubes 9 g, provided at the upper ends, and on
one side, preferably the inner side, with hinged flaps or shutters g'.-These two
tubes are connected together by a connecting piece g².
In Fig. 1, the outer ends of the levers d d bear against the outer ends of the
connecting piece, so that when the levers are rocked on their fulcra by the
swinging of the weight, the extinguisher tubes are raised, and the flaps fall, or
shut down over the wick, and extinguish the flame.
In order to ensure the shutting down of the flaps, I may provide a light spring,
which will be arranged to bear against both flaps, but I prefer to secure inside
the dome, and between the two slits, a wedge piece h (see Fig. 3), by which the
flaps gare knocked over when they strike against it, as the tubes g are raised.
In the modification shown at Fig. 2, I am enabled to dispense with the
standards a' and levers d d for raising the tubes g, and I use in place thereof a
rigid rod i, which passes up the tube c, and bears against the connecting piece g².-
This rod carries, at its lower end, a ring or disc, which, in its normal position,
may lie close to, or rest on the top of the weight. By the swinging, in either
direction, of the weight, the ring and rod are forced up, and push up the
extinguisher tubes thus putting out the flame.
It will be obvious that in this modification, the tube c may be screwed direct
into the body B, instead of to the plate a, and that in fact both plates a and b
may be dispensed with, but I prefer to use them, as they serve to strengthen the
appliance.
In adapting my improved safety appliance to lamps at present in use, it is
only necessary to make a hole through the body of the burner sufficiently large
to receive the conical or straight tube c, and the appliance can then be fitted to
the lamp without the aid of skilled labour.
The extinguishing tubes will be loosely fitting, so that they will fall or drop
by their own weight after being raised.
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 :—
1. In a safety appliance for lamps in which a swinging weight is employed to
effect the raising of an extinguisher, the application, with or without one or more
plates, as a and b, of a threaded tube, as c, for attaching to the body of the burner
the extinguisher-actuating parts of the appliance, substantially as described.
2. A safety appliance for lamps, in which the chain or rod for working the
extinguisher, under the influence of a swinging weight, is passed through a tubo
which forms the essential feature of the means by which the actuating parts of the
appliance are attached to the body of the burner, as described.
3. The safety appliances for lamps, constructed and arranged as herein shown and
described.
C
1000