Improved Means or Appliances for Use in Extinguishing the Flames of Oil Stoves and Lamps.
Year: 1895

page_text: Date of Application, 10th Oct., 1895
Complete Specification Lelt, 10th July, 1896-Accepted, 15th Aug., 1896
PROVISIONAL SPECIFICATION.
Improved Means or Appliances for Use in Extinguishing the Flames
of Oil Stoves and Lamps.
We, JOHN HARPER AND COMPANY, LIMITED, of Albion Works, Willenhall
in the County of Stafford, Iron Founders, and CHARLES RETALLACK, a Director
of the said Company, do hereby declare the nature of this invention to be as
follows:-
:-
The main feature of this invention consists in utilizing a portion of the dome
(that is to say, the hollow shield formed with an opening therethrough for the
passage of the flame) as an extinguisher for a flame of an oil stove or lamp.
This is conveniently effected, according to this invention, by forming the portion
of one side of the done which extends for the length of the burner (that is to say,
the part which directly carries the wick) as a separate piece from the remainder of
the dome, and pivoting it thereto, in combination with means for raising and holding
up such pivoted portion in the position it assumes when completing the formation
of the dome and for enabling it to be released from such position and moved or
allowed to fall forwards and donwards so as to pass over the top of the wick and
thus extinguish the flame.
When the dome is made of cast iron, as is usual, the part thereof which forms the
extinguisher is preferably made in cast iron also, with the pivots cast therewith.
The pivots may be journaled within recesses formed in the outer surface of the part
to which the extinguisher is pivoted, and the pivots are securely prevented from
coming out of the recesses by the lower end of the chimney, or by a metal band,
which fits around the dome.
The means by which the extinguisher may be operated and held up to act as a
portion of the dome may conveniently consist of an arm (which may be cast with
the extinguisher, when the same is cast) which is, preferably, fitted with a knob of
wood or other material which is a non-conductor of heat, and of a short pillar or
guide, which may be cast either with the mica frame or with the flange of the dome,
and is formed with an inclined portion along one side which terminates in a shoulder
or notch at the bottom. The arm, aforesaid, is in such position in relation to the
pillar that as it is moved down to raise the extinguisher it rubs against the inclined
portion of the pillar, and as it approaches the lower end of such portion it requires
some force to move it down against the sideway pressure thereof and immediately
the arm has passed the bottom of the inclined portion of the pillar it springs
slightly under the shoulder or into the notch and is thus held from being accidentally
moved back. The shoulder itself is somewhat inclined or curved, as is also the
portion of the arm which engages therewith, so that notwithstanding that the arm
is caught by the shoulder sufficiently to securely hold up the extinguisher the arm
can be readily released from the shoulder by a moderate upward pressure, and thus
the extinguisher be turned over the flame.
The ends of the extinguisher may be rabbeted into the ends of the portion to
which they are pivoted, or such latter portion may have stops projecting from its
ends at the back of the extinguisher, so that in either case the extinguisher will be
prevented from being moved back beyond its proper position due to its completing
the formation of the dome.
An extinguisher formed of a portion of the dome itself, substantially as above
described, forming no projection within the dome when not used to extinguish the

page_text: flame, does not interfere with the passage of air to the flame which is consequently
equally supplied at every point; and when the extinguisher is made in cast iron it
has no liability to become melted or otherwise injured by the leat. The extinguisher,
also forming a portion of the dome it-elf, and being pivoted to the remaining portion
in a manner which securely prevents it from becoming detached, cannot become lost
or get out of order. Moreover, as the extinguisher is pivoted to the remaining
portion of the dome, and the pivot axis is consequently a considerabite di-tance from
the wick compared with the height of the upper edge of the extinguisher, it is
ne ved down on to the wick and is not liable to come against the side of the wick
and bend it over.
The flame can be extinguished, it desired, without turning down
the wick, unless the wick is turi ed somewhat high.
Dated this 9th day of October 1895.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.
Improved Means or Appliances for Use in Extinguishing the Flames
of Oil Stoves and Lamps.
We, JOHN HARPER AND COMPANY, LIMITED, of Albion Works, Willenhall
in the County of Stafford, Iron Founders, and CHARLES RETALLACK, Director
of the said Company, 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 am by the following statement :-
The main feature of this invention consists in utilizing a portion of the dome
(that is to say, the hollow shield formed with an opening therethrough for the passage
of the flame) as an extinguisher for a flame of an oil stove or lamp.
This is conveniently effected, according to this invention, by forming the portion
of one side of the dome which extends for the length of the burner (that is to
say, the part which directly carries the wick) as a separate piece from the remainder
of the dome, and pivoting it thereto, in combination with means for raising and
holding up such pivoted portion in the position it assumes when completing the
formation of the dome and for enabling it to be released from such position and
moved or allowed to fall forwards and downwards so as to pass over the top of the
wick and thus extingush the flame.
In order that the invention may be clearly understood, we will proceed to describe,
by way of example, a practical application thereof in the case of a burner of an oil
love; and in doing so will refer to the drawings herewith, of which
Figure 1 is a transverse section taken in the plane indicated by the line 2 of
Figure 2, but shews also a portion of the chimney and the grid and upper portion
of the burner, which are omitted in Figure 2.
Figure 2 is an elevation of the side of the dome at which the extinguisher occurs,
the arm, hereinafter described being shown in section; and
Figure 3 is a plan of the dome and burner, and shews in section the bottom of
the chimney.
The portion A' of the dome A is formed separate from the remaining portion
thereof, but is fitted into the gap formed along one side of the dome to receive it,
and is formed or provided with pivots a, which are journalled within recesses formed
in the outer fuce of the adjacent portions of the dome. These pivots are kept back
within their recesses by the lower portion of the wall of the chimney B which
surrounds the dome. An arm C, which may be conveniently east in one piece with
the extinguisher A', projects therefrom, ns shewn, and is preferably provided at its
outer end with a knob or handle e of wood or other material which is a bad conductor
of heat. A spring b, shaped as shewn with an upper portion which is convex

page_text: outwards, is fixed to a lug d of the dome plate, and the art C is formed with a
rojection e which is adapted to press the upper end of the spring inwards, as the
arm is depressed, and allow the upper end of the spring to pass over it when the
When
arm is in its downward position, and thus prevent the arm from rising.
the arm is in its downward position, the extinguisher A' is up against stops / which
project from the fixed portion of the dome over its ends, and in such position
completes the formation of the dome, and is held up by the engagement of the arm
with the spring. When it is desired to extinguish the flime, the arm is raised with
sufficient force to cause the upper side of the projection e, which is adapted in shape
for the purpose, as shown, to move inwards again the upper end of the spring band
allow the projection e to clear it, and the extinguisher A' will then tall into the
position indicated by broken lines, Figure 1 (shewn, also, except for the arm C, by
broken lines Figure 3) with the forward portion thereof over and close upon the top
of the wick. The inner face of the extinguisher is shown as formed with a recess g
which closes down over the wick as the extinguisher is moved down.
An extinguisher formed of a portion of the dome itself, substantially as described,
does not, except when used to extinguish the flame, interfere with the passage of
air thereto, and the flame is consequently equally supplied with air at every point;
and when the extinguisher is made in cast iron, it has no liability to become melted
or otherwise injured by the heat. The extinguisher also, forming a portion of the
dome itself and being pivoted to the remaining portion in a manner which securely
prevents it from becoming detached, cannot become lost or get out of order.
Moreover, as the extinguisher is pivoted to the remaining portion of the dome, and
the pivot axis is consequently a considerable distance from the wick compared with
the height of the upper edge of the extinguisher, when the extinguisher is in its
upward position, it is moved down on to the wick and is not liable come against
the side of the wick and bend it or The name can be extinguished, if desired,
without turning down the wick, unless the wick is turned somewhat high.
It will be obvious that the purpose of the invention may be attained, also, by
fitting the extinguisher to the inaer face of one side of a portion of the dome which
is set backwards sufficiently to admit the extinguisher without interference with the
air-way, the pivots of the extinguisher being carried in bearings formed in the fixed
portion of the dome. Such an arrangement is, however, unnecessarily complex and
cumbersome.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination of a dome for the burner of an oil stove or lamp with an
extinguisher having its pivots supported thereby, substantially as described.
2. A dome for the burner of an oil stove or lamp, having a portion thereof adapted
to be utilized as an extinguisher, substantially as described.
3. A dome for the burner of an oil stove or lamp, of which one side thereof is
made separate from the other portion of the dome and is pivoted to such other
portion and provided with means by which it may be operated to act as an
extinguisher for the flame, substantially as described.
4. The improved means or appliance for use in extinguishing a flame of an oil
stove or lamp, substantially as described and shewn by the drawings herewith.
1
1000
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.