Improvements in Safety Oil-lamps.
Year: 1898

page_text: Date of Application, 19th Apr., 1898
1000
05h
1000
Improvements in Safety Oil-lamps.
I, ALBERT FRANK, of Sendlinger-Oberfeld 39, Munich 25, Germany, Manufac-
turer, do hereby declare the nature of this invention to be as follows:-
The present invention relates to a safety lamp or lantern which, by its suitable
construction allowing the lamp to be employed for multiples purposes, surpasses
all similar lamps or lanterns hitherto used.
The improved safety lamp, forming the object of the present invention, is com-
posed of an ordinary cylindrical oil or petroleum reservoir, serving as a base, in the
centre of which extends upwardly an ordinary burner of the lamp, and to which
are secured two uprights, diametrically opposite each other, and joined at their
upper ends by a horizontal rod and to which is adapted an arched handle. This
lamp further comprises a cap placed on a collar of the burner and provided at its
upper part with an ordinary crown to hold the lamp-glass, and carrying at the
lower part thereof a circular disk or plate upon which rests an outer protecting
glass cylinder, extending upwardly and carrying at its upper end a circular cap.
The circular plate carrying the cap of the burner and the crown of the lamp-glass
is connected with the upper cap, supported by the protecting glass cylinder, by
a springy wire-work, made in two parts, one of these parts carrying a detachable
and removable reflecting screen and the two parts of this wire-work being joined
above the upper cap to which they are fixed.
To the cylindrical oil or petroleum reservoir of the lamp is pivotally secured
an angle-lever, the large branch of which extending under the above mentioned
circular plate of the lower cap, and the other branch being perpendicular to the
former.
In the normal position the circular plate carrying the protecting glass-cylinder
and the upper cap with the springy wire-work, rests upon the large branch of the
said angle-lever. By depressing the vertical branch of the said lever, that is,
by turning this branch of an angle of 90° downwardly, the said circular plate will
rise with the different parts connected therewith, thus unmasking the burner for
trimming, lighting or extinguishing the lamp.
In the upward and downward movement these different parts are guided by two
slides secured to the lower junction-parts of the wire-works and moving on the first-
mentioned uprights secured to the oil or petroleum reservoir of the lamp and by
two heads secured to the upper cap of the protecting glass cylinder and sliding in
two longitudinal slots made in the said uprights of the lamp.
Briefly it will be seen that this safety-lamp is found of the following advantages,
to which may be added still others:
1) Easy lighting without removing the cylinders.
2) It may be lighted, the lighter having his hands even moistened, without
any danger for the glass-cylinders.
3) It is protected by a wire-work easy detachable and uniting the removable
parts of the lamp with each other.
4) It has a detachable reflecting screen to be fixed on the wire-work.

page_text: 5) It is provided with angle-lever arrangement allowing the cap of the burner
and the other parts connected therewith to be easily lifted.
Dated this 18th day of April 1898.
L. DUVINAGE,
Patent Agent, 8, Rue des Princes, Brussels, Belgium.
I, ALBERT FRANK, of Munich, in the Empire of Germany Manufacturer, 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 subject of the present invention is a safety lantern, the burning apparatus
of which is easily accessible for lighting purposes, and for the cleaning or trimming
of the wick.
And in order that my invention may be thoroughly understood I now proceed
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.
Fig. 1, is a view in side elevation of the lantern, in its operative position.
Fig. 2, is a view in front elevation showing the cap of the burner of the lantern
raised to afford access to the said burner.
Fig. 3, is a view in plan of the lantern the handle being broken away to show
some of the parts situated beneath it.
Fig. 4, is a diagrammatical view showing the mechanism for the raising of the
burner cap of the lantern.
Fig. 5 is a horizontal section of the lantern on the line X Y on Fig. 1.
Fig. 6, is an underside view of the exterior gallery of the burner cap.
The lantern which forms the subject of the present invention comprises an oil
reservoir a, to the side walls of which are fixed at two diametrically opposite
points, the ends of a flat rod b b so'curved or bent as to form a vertical frame
carrying towards its upper end a transverse rod or stem Z the extremities of which
extending beyond the frame, receive the ends of a handle C which is articulated
or jointed to them.
The burner properly so called i, fitted to the reservoir and containing the wick,
is in all particulars the same as that of an ordinary lamp. The cap d of the
burner carries an interior gallery supporting the glass or chimney f of the lamp
burner of the lantern, and it is fixed upon an exterior gallery d. Upon this latter
is mounted a cylindrical casing or sleeve f formed of glass, and surrounding the
cap of the chimney. This cylinder carries at its upper end the cape of the
lantern, which is closed at its upper portion and perforated with holes all round its
sidę.
The gallery d carrying the burner cap d, the glass cylinder f and the cap e
of the lantern are connected between themselves by two sets or series of stems or
rods and g¹ or by metallic wires forming two trellis work or wire mesh half
cylinders each of which surrounds and protects. one half of the glass cylinder
and the cap of the lantern.
The two principal branches of the series or set g are bent or curved over or above
the cap of the lantern and are fixed to the roof of this latter, as is shown in Fig. 3,
and their lower ends which are provided with eyes are attached to two pins m
placed diametrically opposite to each other and fixed to two slide pieces ll.
These two branches are connected together by horizontal branches and bent or

page_text: curved to form the half trellis or lattice work cover or shield.. The principal.
branches of the series or set g¹ are arranged in a manner syinmetrical to the first on
the, other side of the lantern, and are fixed in the same manner as the first, the
upper, ends secured to the roof of the cap. of the lantern, and their lower. ends.
in the form of eyes being in like manner fixed to the two pins m alongside the.
first (Figs. 1, 2 and 5). The fixing of the upper parts or ends of the various
stems before mentioned upon the roof of the cap of the lantern is effected in.the.
following manner: these ends are bent or curved in a downward direction. and
penetrate into a recess provided in the centre of the said roof, the elasticity or.
spring of the said stems maintaining the said ends in the above mentioned recess.
The two slide pieces 1 to, which are fixed the pins m are terminated at their
upper ends and at their lower ends by shoe pieces. having little mortises cut in
them into which pass the stems b b of the frame of the lantern. These slide
pieces may be displaced in a vertical direction along these stems b b. The slide
pieces are strongly connected to the gallery.d. Moreover, two projections nn
fixed to the roof of the cap of the lantern diametrically opposite to each other are
free to slide in slots 6' provided at each side in the frame b, as is clearly shown in
Fig. 1.
Å cranked lever h h¹ is articulated at its elbow to a plummer block or bearing
provided upon the oil reservoir a, the arm of this lever possesses a handle a
and a small pin or projection all which rests when the lantern is in its operative
position, as is shown in Fig. 1, upon the edge of metal plate o which is bent over
at a right angle, and fixed to the periphery of the gallery (Figs. 1, 2, 4, and 5).
The lower arm h¹ of the lever is placed beneath the gallery d₁ this arm is pro-
vided with a shoulder at its end and is guided in a slide piece fixed below the
gallery d (Fig. 6).
:
7:
Upon one of the two trellis or lattice half cylindrical parts g is fixed a screen k
so arranged as to be capable of being easily removed.
The upper cape of the lantern, the glass cylinder f, the gallery d¹ and the two
half cylindrical trellis or lattice pieces which connect them are thus firmly con-
nected, and if the gallery d¹ be removed, all the parts connected to this latter are
removed at the same time, guided in their vertical movement by the side pieces ll,
and leaving exposed the properly so called burner c¹, for lighting or for any other
purpose.
In order to effect this removal, the handle h and a must be pressed upon by the
finger so as to cause the lever to make or move through a quarter of a revolution,
thus bringing it into the position represented in Fig. 4. During this movement
the arm raises the gallery d¹ and brings it together with all the parts which are
connected to it, into the raised position (Figs. 2, and 4), the arm h¹ being then in
the vertical position retains these parts in the raised position. The lowering
of these parts is effected by bringing back the arm h into its initial or normal
position, wherein it retains the different parts hereinabove mentioned in the
lower position by its projection or pin all resting on the edge of the metal plate o.
Thanks to the hereinabove described arrangement, it is always possible to obtain
access to the burner without being obliged to remove the cylinder f and without
any danger of ones burning ones fingers, or of breaking the glass cylinder or casing
or the chimney.
When the cylinder f and the chimney f¹ have to be removed for cleaning
purposes, it is sufficient to remove the two trellis or lattice pieces g and g¹ the one
after the other by compressing the lateral stems, and all the parts which are
connected by these trellis or lattice pieces can then be easily dismounted.
The rotary handle c may be placed in a horizontal position, as is indicated in
dotted lines in Fig. 1, with the object of hanging up the lantern to a hook or
cramp fixed in a wall, whilst at the same time maintaining the vertical position of
the said lantern. For this purpose this handle is provided on one side with a
disc having two flat slide pieces, by means of which they can be fixed at the one

page_text: or the other side in a horizontal position by a flat or blade springs provided with
a hook piece or projection.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
1. A safety lamp in which, for the purpose of facilitating the lighting, the cap of
the burner, as well as the lamp cylinder, and the protective cylinder with trellis
or lattice protectors, and screens, are removed or raised by means of a cranked
lever hh, and automatically retained both in the raised or elevated position and
in the lower position.
2. In the safety lamp claimed in the first claim the arrangement of a divided
trellis or lattice protector, and which on one side rests with its ends bent over
into hooks upon the cap e, and on the other part engages through the arms form-
ing lateral springs with the pins m of a slide piece and connects the cap of the
burner with the two cylinders and the cap e so as to form a whole.
3. In the safety lamp claimed in the first claim, the lateral-guiding arrangement
upon the flat stems or rods b, for the slide pieces 7 connected to the cap of the
burner, which slide pieces by means of their pins m serve at the same time to fix
the protective trellis or lattice pieces.
4. In the safety lamp claimed in the first claim the arrangement of a movable
handle, capable of being fixed in a horizontal position by means of a hook piece
provided upon a springs, and engaging in even holes, in order to admit of the
lamp being hung up to the wall, substantially as hereinabove described and
represented in the annexed drawing.
101
1
1000
J. P. BAYLY,
18, Fulham Place, Paddington, London, W.,
Agent for the Applicant."