Year: 1887

page_text: Date of Application, 18th Apr., 1887
Complete Left, 13th Jan., 1888
Complete Accepted, 9th Mar., 1888
I WILLIAM WALTER HARVERSON, of 172 Evering Road, Upper Clapton, in the
County of Middlesex, Builder, do hereby declare the nature of this invention to be as
follows:-
My invention relates to lamps for burning oil or other liquids and has for object
to provide for the instantaneous extinction of the flame in the event of the lamp
being upset or tilted.
With this object I hinge to the wick tube or to a tube outside the wick tube or to
other convenient part within the cone of the lamp a pair of extinguishers which face
each other on opposite sides of the burner. These extinguishers are of concave form
and so shaped as when they meet to constitute a sort of box that shuts in or encloses
the burner. Normally they stand open. Below these extinguishers I employ two
blocks which are hung or suspended to the wick tube or other part of the lamp within
the cone.
The action is as follows:-Should the lamp be upset or tilted to the side on which
the one or the other of the extinguishers is situated, the opposite extinguisher falls of
its own weight until the two extinguishers meet; the burner is thus enclosed and the
flame extinguished. On the other hand should the lamp be upset or tilted at right
angles to the movement of the extinguishers the suspended blocks by retaining their
horizontal position act against the two extinguishers and cause them to move together
and thereby to extinguish the flame.
In order to extinguish the lamp in the usual way by moving a button or similar
appliance outside the lamp I connect the rod to which the button is fitted either to
one of the extinguishers or to one of the suspended blocks so that by turning the
rod one of the extinguishers is caused to move until it closes upon the other
extinguisher.
Dated this 13th day of April 1887
J. C. MEWBURN,
169, Fleet Street, London,
Agent.

page_text: improvements и нашро iur Dur
Other Dis
I WILLIAM WALTER HARVERSON, of 172 Evering Road, Upper Clapton, in the
County of Middlesex, Builder 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 :-
My invention relates to lamps for burning oil or other liquids and has for its
primary object to provide for the instantaneous extinction of the flame in the event of
the lamp being upset or tilted.
With this object I hinge to the wick tube or to a tube outside the wick tube or to
other convenient part within the cone of the lamp, a pair of extinguishers which face
each other on opposite sides of the burner. These extinguishers are of concave form
and so shaped as when they meet to constitute a sort of box that shuts in or encloses
the burner. Normally they stand open. Below these extinguishers I employ two
blocks which are hung or suspended to the wick tube or other part of the lamp within
the cone.
The action is as follows:-Should the lamp be upset or tilted to the side on which
one of the extinguishers is situated, this extinguisher is kept up by the action of the
suspended block and the opposite extinguisher falls of its own weight so that the two
extinguishers meet; the burner is thus enclosed and the flame extinguished. On the
other hand should the lamp be upset or tilted at right angles to the movement of the
extinguishers the suspended blocks by retaining their position act against the two
extinguishers and cause them to move together or meet and thereby to extinguish the
flame.
In order to extinguish the lamp at other times by means of an appliance extending
to the outside of the lamp, I connect this appliance either with the extinguishers or
the suspended blocks so that by moving the appliance the extinguishers are caused to
close against each other.
The accompanying drawings will serve to illustrate my invention. Figure 1 is a
plan, Figure 2 an elevation partly sectional and Figure 3 another elevation taken at
right angles to Figure 2 and also partly sectional representing one arrangement.
a is the ordinary cone and the gallery, c the wick tube and d a tube surrounding
the wick tube. To pins or pivots e, e on the tube d I hinge or attach the supports or
legs of a pair of extinguishers f₁f which face each other on opposite sides of the
burner. These extinguishers are of concave form at their upper part so as when
they meet to constitute a sort of box that shuts in or encloses the burner, and they
normally stand open as seen in the figures. Below the extinguishers are two
blocks 59, which are hung or suspended to lugs h, h on opposite sides of the tube d.
Each of these blocks 9 has an arm i standing up therefrom against which the back
of the corresponding extinguisher f normally rests; each block has also two hori-
zontal arms kk projecting from its opposite sides and taking respectively under two
claw or hook shaped pieces 1, 1 projecting from the back of the corresponding

page_text: extinguisher. The automatic extinction of the lamp if upset or tilted is effected as
follows: If the upsetting or tilting be to the side on which one of the extinguishers f, f
is situated this extinguisher is kept up by the vertical arm i on the corresponding
block g because this block swings on its hanging point and the extinguisher then
partly covers the top of the wick tube; the opposite extinguisher at the same time by
falling of its own weight covers the remaining part of the top of the wick tube, the
two extinguishers in fact meeting; the flame is therefore extinguished. If on
the other hand the lamp be upset or tilted at right angles to the movement of the
extinguishers the suspended blocks, by retaining their position, act, by means of
their projecting arms k, k which are at that side to which the lamp falls or tilts,
against the legs of the extinguishers and thereby force the extinguishers inwards so
as to meet each other and extinguish the flame.
In order to provide for extinguishing the lamp at other times, that is to say, when-
ever desired, I provide an appliance operated from outside so as to act upon the
extinguishers. A convenient arrangement for this purpose is shown in the figures.
It consists of a lever m pivoted at n and forked at its inner end p. This fork lies
under feet or projections q, q on the legs of the extinguishers so that when the fork
is raised by depressing the outer end of the lever it lifts the feet 9, 9 and thereby
causes the extinguishers to close.
Figures 4, 5 and 6 are similar views to Figures 1, 2 and and represent an
arrangement differing from that shown in these figures chiefly in that instead of
having the arms i and k, k on the blocks g, g these blocks each carry a wire r bent in
such manner as to present a parts in lieu of the arm i to bear against the back of
the corresponding extinguisher and two projecting parts t, t in lieu of the arms k, k
to act against and push up the corresponding extinguisher when the lamp is upset or
tilted at right angles to the movement of the extinguishers.
The modifications shown in Figures 1 to 6 represent the application of my invention
to lamps with a single flat wick. Figures 7 and 8 illustrate how it can be applied to
a duplex lamp. In this case two additional extinguishers f¹¹ are placed between
the two wick tubes and each of them is connected by means of a rod u, to that
extinguisher which normally stands at the same angle. The additional extin-
guishers will consequently move synchronously with the extinguishers ff. In
this duplex arrangement the lamp may be extinguished whenever required by pressing
down the outer end of the lever m so that a cone v on its inner end will act upon
tongues w, w on the rods u, u and thereby close the extinguishers.
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 1
claim, in respect of lamps for burning oil or other liquids, is :-
1. Means for automatically extinguishing the flame in the event of the lamp being
upset or tilted, said means comprising a pair of extinguishers or extinguishing devices
and a pair of hung or suspended blocks so arranged with respect to the extinguishers
as to ensure their inward or closing movement when the lamp is upset or tilted in any
direction, substanstially as set forth.
2. The several arrangements substantially as herein before described and represented
in the drawings for automatically extinguishing lamps when upset or tilted.