Year: 1886

page_text: Date of Application, 1st Oct., 1886
Complete Left, 1st July, 1887
Complete Accepted, 1st Oct., 1887
I, FRANCIS ROBERT BAKER of Arcade Chambers Snow Hill Birmingham in the
County of Warwick, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to so simplify the construction of extinguishers that
they can be produced at a much less cost than those of the ordinary kind; so that by
reducing the cost of manufacture, lamps of the cheapest kind can be provided with
means for extinguishing.
I will describe my invention in connection with a single-wick hydro-carbon lamp.
I take a burner of the ordinary kind, with the wick tube centrally disposed, and
passing up the middle of the body of the said burner to the required height; and
crossing the burner body in the direction of a diameter, the bearing axes and the sides
of the extinguisher box passes; that is, I take two lengths of wire which when
brought together are of a combined breadth equal to the breadth of the wick tube.
These lengths of wire are cranked upwardly about their middles, so that the sides of
the cranked parts embrace or come against the opposite sides of the wick tube, while
the tops which are continued from the sides, are elevated to a distance above the
wicks. The horizontal portions of these wires constitute the axes upon which the
extinguisher turns, and which axes are supported within opposite sides of the burner
body, and coupled together by toothed wheels or sectors, so as to make the parts
which constitute the halves of the extinguisher move or rotate together in unison, when
the axis of one of them is turned.
One of the ends which is made to protrade through the burner body is bent
downwards into a "turn," by which means the extinguisher is operated. The end of
this turned down part may be weighted; so that when liberated, the extinguisher
halves are automatically opened after extinguishing.
The cranked portions of these wires have sides in the form of plates secured to
their outer sides; so that when the extinguisher halves. come together with the
boundary wires in juxta position, an extinguisher box is formed, which is made to
cover up and enclose the wick,

page_text: By constructing extinguishers mainly of wire as described, the cost of manufacture
is greatly reduced, while its efficiency as an extinguisher is perfect, as the top portions
when combined with the sides or enclosing plates, form shallow half boxes of a depth
equal to the breadth of the wick tube, and when brought together, form a complete
box wherein the top of the wick is enclosed.
DI 1
FRANCIS ROBERT BAKER.
By Henry Skerrett,
6, Livery Street, Birmingham,
Agent to the Applicant.
COMPLETE SPECIFICATION.
Improvements in Extinguishers for Hydro-carbon and other Lamps.
I, FRANCIS ROBERT BAKER of Arcade Chambers Snow Hill Birmingham in the
County of Warwick, Engineer, 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 my invention is to so simplify the construction of extinguishers, that
they can be produced at a much less cost than those of the ordinary kind; so that by
reducing the cost of manufacture, lamps of the cheapest kind can be provided with
means for extinguishing.
I will describe my invention in connection with a single wick hydro carbon lamp.
I take a burner of the ordinary kind, with the wick tube centrally disposed, and
passing up the middle of the body of the burner, to within a short distance of the
underside of the cone; and disposed on the two opposite sides of the wick tube or
case, half extinguisher parts are arranged and jointed, consisting of vertical wires or
stems, having at their summits, half extinguisher boxes, which when brought together,
enclose or cover up the protruding wick end, coming above, and through the open
top of the wick case.
The lower end of these wires or stems, are cranked outwardly to a right angle, and
when so cranked, they form axes, upon which the half extinguisher parts turn, when
supported within suitable bearings at the bottom of the burner body. One of these
axes is extended outwardly through the sides of the burner body, and constitutes the
extinguisher axis, which has a button upon its end, for giving the necessary rotation
for opening and closing. These half extinguisher axes are coupled together by
toothed sectors or toothed wheels; so that the rotation of one or other of which, will
cause the half extinguisher parts to open or close in unison.

page_text: By constructing extinguishers in the way as described, the cost of manufacture is
greatly reduced.
Figure 1 represents partly in elevation, and partly in vertical section, a hydro-
carbon lamp burner, the extinguisher or the extinguisher mechanism of which, is
constructed and arranged according to my invention, and which said extinguisher
part is represented open, or in a position suitable for the lighting of the lamp.
Figure 2 represents the same view as figure 1, but with the extinguisher closed.
Figure 3 shows a side elevation of the extinguisher part of the lamp, and with the
burner part in section. Figure 4 represents a top side plan of figure 1, and figure 5
a top side plan of figure 2, while figure 6 shows a side elevation of a portion of the
extinguisher mechanism. Figure 7 shows an end view of the said figure 6.
The same letters of reference indicate corresponding parts in the several figures.
a is the body of the burner part of the lamp, and is the cone, pierced with a
single flame slit, directed across its diameter, in common with hydro-carbon lamps of
this class. c is the wick tube or wick case, centrally disposed within the axis of the
burner, and with its top end coming opposite and near to, the flame slit as aforesaid.
d, d are jointed stems or wires carrying at their upper ends, half extinguisher
boxes e, e, which when brought together, with their edges in juxta position, they form
a complete box or enclosure, which surrounds and covers up the wick, as represented
in figure 2.
The lower ends of the stems d, d, are cranked outwardly, or bent at right angles to
the other part, and constitute axes d', d', upon which the half extinguisher parts e, d
turn, as joint centres, when supported within suitable bearings f, f, as best seen in
figures 3, 4, 5 and 6. One of these stems is extended outwardly, through the sides of
the burner body, and is marked g, and forms the extinguisher axis or means by which
the extinguisher is worked. This said axis g, has a button 93 upon its end, for giving
the necessary rotation for opening and closing as aforesaid. The joint stems of the
half extinguisher parts, also carry toothed quadrants or sectors h, h, for working in
unison of the said parts, for extinguishing and uncovering of the wick for lighting.
To extinguish a lamp, when the extinguisher mechanism is in the position as
represented in figure 1, rotate the turn g² of the stem g, from left to right, when the
teeth of the quadrant h, upon the stem d, (which is a continuation of the axis g)
gears with the teeth of the other quadrant, or sector, when the half extinguisher boxes
are closed, as represented in figure 2.
To uncover the wick, rotate the stem or turn in the opposite direction as aforesaid,
when the extinguisher halves are opened out by the toothed quadrant or sector of
the one, gearing with the toothed quadrant or sector of the other, which makes
the said extinguisher halves open in unison as represented in the said figure 1.
The toothed quadrants may be substituted by toothed wheels; and instead of the
stem g, for working the extinguisher, an arm on one of the joint axes may be
substituted therefor; so that instead of the extinguisher being operated by the
turning of an axis, this arm is raised and lowered, for the opening and closing of the
half extinguisher parts; and instead of the stems or wires of the extinguisher half
boxes, turning upon a cranked end, they may turn upon pinned or flexible joints.
The half extinguisher parts instead of being disposed in the longer way of the wick
case, they may be disposed in the shorter direction, with the meeting edges of the
half boxes coming respectively half way across the wick case. This form of
extinguisher, is applicable to lamp burners having two wick cases.
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 :-
First. A lamp extinguisher, consisting of jointed and upright stems or wires
disposed and working, on the two opposite sides, or ends of the wick case or cases;
these said stems or wires, carry at their upper ends, half extinguisher boxes; while
the joints at their lower ends, work within sleeve bearings, on the lower inside part of
the burner body, and carry toothed quadrants, toothed wheels, short arms, or their
mechanical equivalents, which on being rotated or turned, close and open the half

page_text: extinguisher parts, which are constructed, arranged, and work in the manner,
substantially as described and set forth.
Secondly. Making the cranked joint stems d, and the turn axis g, at the end of one
of them, in one piece, with their respective upright stems or wires d, substantially
as set forth.
Thirdly. Operating half oxtinguisher parts, by toothed quadrants, gearing with
each other, and worked by a turn axis, or short arm, as set forth.
Fourthly. Working extinguisher halves, of the kind as herein described, by an axis
and turn, connected to, or made with either one of the toothed quadrants, or their
equivalents, or with the stem or stem axis of the joints, substantially as described
and set forth.
Dalth:
C T
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