Year: 1887

page_text: Date of Application, 15th June, 1887
Complete Left, 15th Mar., 1888
Complete Accepted, 4th May, 1888
I, WILLIAM FREDERICK BARTON MASSEY-MAINWARING of 30 Grosvenor Place,
in the County of Middlesex, Gentleman do hereby declare the nature of this invention
to be as follows:-
The invention has for its object an improved construction of self-acting extinguishing
apparatus for use in connection with hydro-carbon safety lamps provided with either
flat or round wicks.
For this purpose I mount two coacting extinguishing parts or levers on fixed studs
or axes, one at each side of the wick tube and I extend the arms of these coacting
parts or levors below such studs or axes and pin joint them to links which are pin
jointed together and to depending wires or rods to each of which a weight is
connected by a cord or chain.
One of these weights and one set of links are placed on each side of the wick tube
and the weights are carried by supports at each side of the burner fitting which will
retain them in their non-acting or normal position under any ordinary inclination of
the lamp but which are so formed that when the lamp is upset or held at a dangerous
inclination the weights shall fall off their supports and by their gravity act upon the
links and levers above described and thereby extinguish the flame.
The depending rods or wires at their lower ends are also formed with buttons or
other projections in order that when desired the extinguishing apparatus may be
operated by hand without disturbing the weights.
Extinguishing apparatus of the character above described may readily be applied to
existing lamps as also to lamps made expressly with the same.
When using the above described form of extinguishing apparatus the font or reservoir
of the lamp may be made of any material and of any form hitherto in use as no part
of the said apparatus passes through the same as is the case with some forms of
extinguishing apparatus now in use.
1007

page_text: I, WILLIAM FREDERICK BARTON MASSEY-MAINWARING of 30 Grosvenor Place,
in the County of Middlesex, Gentleman, 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 invention has for its object an improved construction of self-acting extinguishing
apparatus for use in connection with hydro-carbon safety lamps provided with either
flat or round wicks.
For this purpose I mount two coacting extinguishing parts or levers on fixed studs
or axes, one at each side of the wick tube and I extend the arms of these coacting
parts or levers below such studs or axes and pin joint them to links which are pin-
jointed together and to depending wires or rods to each of which a weight is connected
by a cord or chain.
One of these weights and one set of links are placed on each side of the wick
tube and the weights are carried by supports at each side of the burner fitting which
will retain them in their non-acting or normal position under any ordinary inclination
of the lamp but which are so formed that when the lamp is upset or held at a
dangerous inclination the weights shall fall off their supports and by their gravity act
upon the links and levers above described and thereby extinguish the flame.
The depending rods or wires at their lower ends are also formed with buttons or
other projections in order that when desired the extinguishing apparatus may be
operated by hand without disturbing the weights.
Extinguishing apparatus of the character above described may readily be applied
to existing lamps as also to lamps made expressly for the same.
When using the above described form of extinguishing apparatus the font or
reservoir of the lamp may be made of any material and of any form hitherto in use
as no part of the said apparatus passes through the same as is the case with some
forms of extinguishing apparatus now in use.
And in order that my said invention may be more clearly understood and readily
carried into effect I will proceed aided by the accompanying drawings more fully to
describe the same.
DESCRIPTION OF THE DRAWINGS.
Figures 1 and 2 are vertical cross sections of a flat wick lamp burner drawn at
right angles to each other and showing my improved extinguishing apparatus applied
thereto and Figures 3 and 4 are respectively an end elevation and a side elevation
of the extinguishing apparatus applied to the wick tube but separate from the other
parts of the burner.
Figures 5 and 6 are vertical cross sections drawn at right angles to each other and

page_text: •
Figure 7 is a plan with the cone removed of a flat wick lamp burner showing a
modified construction of my improved extinguishing apparatus applied thereto.
Figures 8, 9, 10 and 11 are respectively a side elevation, a plan and two opposite end
views of the said modified construction of extinguishing apparatus applied to the wick
tube but separate from the other parts of the burner and Figures 12, 13 and 14 and
Figures 15, 16 and 17 are respectively an end elevation, an inside elevation and a plan
of each of the extinguishing jaws separately.
Figures 18 and 19 are vertical cross sections drawn at right angles to each other
and Figure 20 is a plan with the cone removed of a flat wick lamp burner showing
a modified construction of my improved extinguishing apparatus capable of more
easy application to existing burners. Figures 21, 22 and 23 are respectively a side
elevation, an end elevation and a plan of the said extinguishing apparatus and its
fitting separate from the other parts of the burner; Figures 24 and 25 and Figures 26
and 27 are respectively an end elevation and an inside elevation of each of the
extinguishing jaws separately and Figures 28, 29 and 30 are respectively a side
elevation, an end elevation, and a plan of the fitting separately.
;
Figures 31 and 32 are vertical cross sections drawn at right angles to each other
and Figure 33 is a plan with the cone removed of a duplex lamp burner showing my
improved extinguisher fitted thereto. Figures 34, 35, 36 and 37 are respectively a
vertical cross section, an end elevation, a side elevation and a plan of the extinguishing
apparatus applied to the wick tubes but separate from the other parts of the burner
Figures 38 and 39 and Figures 40 and 41 are respectively an end elevation and an
inside elevation of each of the extinguishing jaws separately. Figures 42, 43 and 44
are respectively an end elevation, a vertical section and a plan separately of the
fitting carrying the extinguishing jaws and Figures 45 and 46 are respectively an
end view and a side view of auxiliary plates arranged between the wick tubes.
In all the views like parts are indicated by similar letters of reference.
I will first describe the construction of extinguishing apparatus represented at
Figures 1 to 4 inclusive. a is the wick tube, 6, are coacting extinguishing levers
or jaws, which, according to the arrangement now being described, are mounted on,
and pinjointed together at c, by studs or axes, one of which is fixed to each side or
end of the wick tube a, the arms of these levers or jaws b. b¹ are extended below
such studs or axes e and they are pin jointed to links d, which, at d', are pin jointed
together and to depending wires, links or rods e to each of which latter a weight f
is connected by a cord or chain f¹. One of these weights and one set of links
are placed on each side or end of the wick tube a and the weights are ordinarily
carried by supports g at each side of the burner fitting h which will retain them in
their non-acting or normal position under any ordinary inclination of the lanp, but
which are so formed that when the lamp is upset or held at a dangerous inclination,
the weights f shall fall off their supports and by their gravity act through the depending
wires, links or rods e on the links d and extinguishing levers or jaws b, b². The
depending rods, links or wires e at their lower ends are also formed with buttons or
other enlargements et in order that when desired the extinguishing apparatus may be
operated by hand without disturbing the weights.
In order to cause the extinguishing jaws to rise and fall equally they are each
formed with a projection ³ which bears against the side of the wick tube.
I will now describe the modified construction of my improved extinguishing
apparatus represented at Figures 5 to 17 inclusive. In this modification the
extinguishing apparatus is carried by a fitting k which tightly fits the wick tube a,
and the extinguishing jaws or levers b, b, are pinjointed together at c but not by
fixed studs or axes as in the form of apparatus described with respect to Figures 1
to 4, their arms b² are also pin jointed to links d, as in the arrangement above described,
but the said links are pin jointed together at d by studs or axes fixed to the
fitting k. Only one depending link or rod e is used and instead of its being connected
to the pin joint at d¹ of the levers d it is in the present case connected to the pin
joint at c of the extinguishing levers or jaws b. b', and it is pin jointed ate to a lever i
which is mounted on an axis ¹ carried in bearings formed, or fixed on the perforated

page_text: shell of the burner. The lever i is by a cord or chain f¹ connected to a weight f.
The support g is in this case carried by a ring g' fitting tightly on the lower part of
the burner. By this construction of parts it will be seen that when the weight falls
off its support g, it will act through the lever i and link or rod e on the pin joint at c
to raise it and consequently the extinguishing levers or jaws b, b₁, which by the
action of the arms & and links d, d, will be caused to approach each other so as to
close on to the wick and thereby extinguish the flame.
I will now describe the modified construction of extinguishing apparatus repre-
sented at Figures 18 to 30 inclusive. These figures represent an arrangement of
extinguishing apparatus operating in precisely similar manner to that represented at
Figures 5 to 17 but so constructed as to enable it to be more readily applied to existing
burners. For this purpose the extinguishing jaws or levers b, b', links d, d, and link
or rod e, are carried by a fitting k formed of sheet metal folded into a rectangular
form but unconnected at the meeting angle so that it can be readily slipped onto the
wick tube a, and such fitting is provided at its lower edge with clamping bars k¹,
which project beyond the wick tube a and are perforated at their outer ends, the one
with a plain hole, the other with a tapped hole to receive the pin or axis ¹ of the
lever i, which by being screwed into one of the bars and pressing against the
other by a shoulder formed thereon serves to clamp the fitting firmly on the wick
tube a.
The pin or axis is passed between the bars of the shell of the burner or
through holes formed therein; the lever i is also passed through an aperture formed
or existing in the shell; and instead of being pin jointed to the link or rod e is
arranged to give motion to such link or rod by entering a slot or eye e¹ formed at the
lower end of the said link or rod.
The perforated diaphragm / however in all the cases shown requires part to be cut
away tlierefrom or a recess to be stamped therein to accommodate the extinguishing
apparatus and to permit of its free action.
I will now describe the modified form of extinguishing apparatus represented at
Figures 31 to 46 inclusive as applied to a duplex lamp burner. In this caso the
extinguishing levers or jaws b, b, links d, d, link or rod e, lever i, weight f, chain or
cord and support g are arranged and operate in an exactly similar manner to the
apparatus represented at Figures 5 to 17 the extinguishing jaws being of such forin
and size as to be capable of covering both wick tubes, but to enable them to be applied
to a duplex burner, the extinguishing levers or jaws b, 61, and links d, d, are carried
by a fitting which is made to pass around and fit tightly the two wick tubes a, I
also form the axes c of the extinguishing jaws b, b' of a single length of wire forming
a continuation of the link or rode and passing through slots 2 formed in the fitting k
by which arrangement the extinguishing jaws are caused to rise and fall equally.
This wire is also used to form an axis for, and give the rising and falling motion to,
a pair of plates m, which, in the rising and closing of the extinguishing jaws, are
caused to open out by the action thereon of a stud k³ so as to occupy the space
between the wick tubes a, a, as shown at Figures 34 and 35 and thereby prevent the
passage of air therethrough to the wick. These plates m on the opening or descent
of the extinguishing jaws b, b', are in their descent caused by two pins or studs k* to
approach each other as shown at Figure 31 so as not to interfere with the draft of
air between the wick tubes a, a.
It will be readily understood that a weight f connecting cord or chain f¹ and
support g may be employed in connection with extinguishers for round or argand
wicks.
I would here remark that I am aware that extinguishing apparatus has been
arranged to be operated by a weight at the lower part of a lamp but in such case it
has involved the use of an oil tank or reservoir formed with a central tube passing
vertically through the same to accommodate the connection between the weight and
the extinguishing jaws or levers or it has been necessary to use an unsightly external
connection between such parts but by the use of my improved construction and
arrangement of extinguishing apparatus I avoid such inconveniences and locate the
entire extinguishing apparatus above the reservoir.

page_text: 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. In hydro-carbon safety lamps, the employment of extinguishing apparatus
consisting of extinguishing jaws or levers 6, 6', arms b² connected links d, d, operating
rod or link e, falling operating weight f, connecting cord or chain f¹, and support g on
which the weight normally rests substantially as herein shown and described and for
the purpose stated.
2. In combination with the extinguishing mechanism of hydro-carbon safety lamps
the employment of falling operating weight or weights f and which in their normal
position rest on supports g substantially as herein shown and described and for the
purpose stated.
Dated this 15th day of March 1888.
W. F. B. MASSEY-MAINWARING.
By Harris & Mills,
23, Southampton Buildings,
Agents.