IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE OILS
Year: 1879

page_text: LETTERS PATENT to Herbert Ernest Newton Mason, of Birmingham, in the
County of Warwick, Manufacturer, and Joseph Price, of Birmingham aforesaid,
Accountant, for the Invention of "IMPROVEMENTS IN LAMPS FOR BURNING
VOLATILE OILS."
Sealed the 25th July 1879, and dated the 5th February 1879.
PROVISIONAL SPECIFICATION left by the said Herbert Ernest Newton
Mason and Joseph Price at the Office of the Commissioners of Patents on
the 5th February 1879.
HERBERT ERNEST NEWTON MASON, of Birmingham, in the County of Warwick,
Manufacturer, and JOSEPH PRICE, of Birmingham aforesaid, Accountant.
PROVEMENTS IN LAMPS FOR BURNING VOLATILE OILS."
"IM-
Our Invention has reference to lamps in which volatile oils, such for example as
those called in commerce petroline, paraffin oil, and light or volatile oils generally,
are burned.
Our Invention consits of the improvements hereinafter described whereby the
operations of trimming the wicks and of extinguishing and relighting the lamps
are much facilitated.
In order to facilitate the trimming of the wicks of the said lamps we make the
chimney holder and gallery for carrying the chimney and globe and the dome of
the burner in one piece, and separate from the body of the burner, so that by
removing the said separable part the chimney and shade and dome are removed
together and the wick exposed for trimming. The separable part is connected to
and disconnected from the body of the burner by a fastening somewhat resembling
a bayonet joint fastening, so that by motion through a small angle the separable
part may be connected to or disconnected from the body of the burner.
In order to effect the extinguishing of the lamp we employ a cap to each wick
case. The said cap fits on the top of the wick case, and is divided at its middle,
so that by the two halves separating they pass from off the top of the wick case,
and by approaching each other they close upon and cover the top of the wick case.
The two halves of the cap are carried by levers jointed to one side of the wick case,
the lower ends of the levers, that is the arms below the joints, having curved slots.
The extreme lower ends of these levers cross each other.
Jointed to one side of the lower part of the body of the wick case is a horizontal
lever, which passes across the said lower part of the wick case, its free end pro-
truding from the side opposite to that to which it is jointed.

page_text: A pin near the middle of this lever engages in the curved slots in the lower ends
of the levers carrying the cap or extinguisher. When the said horizontal lever is
in its lowest position the two halves of the extinguisher are closed and the wick case
is covered. When the horizontal-lever-is-in-its raised position the halves of the
extinguisher are separated. The wick is thus freely exposed, and the lamp can be
lighted.
In order to extinguish the lamp it is only necessary to depress the outer end of
the horizontal lever, when the two halves of the extinguisher close over the wick
case and extinguish-the-lamp.
The said horizontal lever actuates both extinguishers in lamps having two
wicks.
In order to facilitate the relighting of the lamp we employ an additional wick
holder, consisting of a tube of small diameter. The said additional wick holder is
connected loosely to the body of the principal wick holder, so that it can be readily
moved through a small angle, and a rod connected loosely with the said additional
wick holder protrudes through the body of the wick holder, and by means of the
said rod the additional wick holder can be moved.
In lamps with double wicks the said small wick holder is placed between the
two burners.
The said small wick holder terminates at about the same level as the principal
wick holders, and carries a wick consisting by preference of a single thread.
By this small wick a minute flame-is kept burning, and on extinguishing the lamp
by the extinguisher described or other mechanical extinguisher this minute flame is
not extinguished.
When it is wished to relight the lamp the extinguisher is removed from the wick
holder and by means of the rod connected to the additional wick holder the
minute flame can be brought near the ordinary wick or wicks, and the latter.
relighted.
This part of our Invention is especially applicable to lamps which require to be
frequently extinguished and relighted.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Herbert Ernest Newton Mason and Joseph Price in the Great
Seal Patent Office on the 25th July 1879.
HERBERT ERNEST NEWTON MASON, of Birmingham, in the County of Warwick,
Manufacturer, and JOSEPH PRICE, of Birmingham aforesaid, Accountant.
"IM-
PROVEMENTS IN LAMPS FOR BURNING VOLATILE OILS."
Our Invention has reference to lamps in which volatile oils, such for example as
those called in commerce petroline, paraffin oil, and light or volatile oils generally,
are burned.
Our Invention consists of the improvements herein after described whereby the
operations of trimming the wicks and of extinguishing and relighting the lamps
are much facilitated.
In order to facilitate the trimming of the wicks of the said lamps we make the
chimney holder and gallery for carrying the chimney and globe and the dome of
the burner in one piece and separate from the body of the burner, so that by
removing the said separable part the chimney and shade and dome are removed
together and the wick exposed for trimming. The separable part is connected to
and disconnected from the body of the burner by a fastening somewhat resembling
a bayonet joint fastening, so that by motion through a small angle the separate
part may be connected to or disconnected from the body of the burner.
In order to effect the extinguishing of the lamp we employ a cap to each wick
case. The said cap fits on the top of the wick case, and is divided at its middle, so
that by the two halves separating they pass from off the top of the wick case, and
by approaching each other they close upon and cover the top of the wick case.
The two halves of the cap are carried by levers jointed to one side of the wick case,
the lower ends of the levers, that is the arms below the joints, having curved slots.
The extreme lower ends of these levers cross each other. Jointed to one side of the
lower part of the body of the wick case is a horizontal lever, which passes across
the said lower part of the wick case, its free end protruding from the side opposite
to that to which it is jointed. A pin near the middle of this lever engages in the
curved slots in the lower ends of the levers carrying the cap or extinguisher. When
the said horizontal lever is in its lowest position the two halves of the extinguisher
are closed and the wick case is covered. When the horizontal lever is in its raised
position the halves of the extinguisher are separated. The wick is thus freely
exposed and the lamp can be lighted.
In order to extinguish the lamp it is only necessary to depress the outer end of
the horizontal lever, when the two halves of the extinguisher close over the wick
case and extinguish the lamp.
The said horizontal lever actuates both extinguishers in lamps having two
wicks.
In order to facilitate the relighting of the lamp we employ an additional wick
holder, consisting of a tube of small diameter. The said additional wick holder is
connected loosely to the body of the principal wick holder, so that it can be readily
moved through a small angle, and a rod connected with the said additional wick
holder protrudes through the body of the lamp, and by means of the said rod the
additional wick holder can be moved. In lamps with double wicks the said small
wick holder is placed between the two burners. The said small wick holder
terminates at about the same level as the principal wick holders, and carries a wick
consisting by preference of a single thread. By this small wick a minute flame is
kept burning, and on extinguishing the lamp by the extinguisher described or other
mechanical extinguisher this minute flame is not extinguished.
When it is wished to relight the lamp the extinguisher is removed from the
wick holder, and by means of the rod connected to the additional wick holder the
minute flame can be brought near the ordinary wick or wicks and the latter;
relighted.

page_text: This part of our Invention is especially applicable to lamps which require to be
frequently extinguished and relighted.
We will now proceed-to.describe, with reference to the accompanying Drawing,
the manner in which our Invention may be performed.
and
The sections, Fillesent
- Figure 1 represents in plan of underside, and Figure 2 in cross section taken on
the line, x, Figure 1, the head of a lamp having a double wick for burning
volatile oil containing our several improvements. Figures 3, 4, and 5
cross sections of the head of the lamp with the chimney holder, globe
cone removed, and Figure 6 is a plan of the same.
are taken in a plane at right angles to that in which the section Figure 5 is taken.
In Figure 3 the caps or extinguishers are represented closed over the wick cases;
and in Figure 4 raised from the wick cases.
and 4,
The same letters indicate the same parts in the several Figures of the Drawing.
a, b, c, represent the combined chimney holder, globe gallery, and dome; a being
the chimney holder; b, the globe gallery; and c, the dome, the said parts being
connected together so as to form one piece or one article. At the edge of the
gallery b and on opposite sides are handles b², 62, for turning the combined parts
a, b, c, for fastening and unfastening the same and for removing them from the
body of the lamp. The combined shade and chimney holder a, b, and dome c is
fastened to and unfastened from the body d in the following manner :-On the
underside of the gallery bare hooked studs e, e, e, and the rim of the body dis
provided with slots f, ff, portions of the said rim near the said slots being reduced
in breadth so as to form lips at 9, g, g. In connecting the combined parts a, b, c,
to the body d the hooked studs e, e, e, are depressed in the slots f. f, f, and the said
combined parts turned through a small angle by means of one of the handles b²
By this motion the hooked studs e, e, e, are made to engage with the lips g, 9, 9,
on the body d, and the parts a, b, c, are connected to the said body. By giving a
back twist to the gallery b by means of its bandle be the hooked studs e, e, e; are
brought opposite the slots fif, f, when the combined parts a, b, c, may be lifted
from the body.
By removing the combined parts a, b, c, the chimney and shade and dome, are
removed together and the wicks are exposed for trimming, as shown in Figures 3,
4, 5, and 6:"
We will now describe our improved extinguishers.
h, h, are the halves of each of the extinguishing caps. The said halves h, k, of
the cap work closely on the sides of the wick case. When the said half caps h, h,
are separated the wick is uncovered, as represented in Figure 4, and when made to
approach one another they close upon and cover the top of the wick case, as repre-
sented in Figure 3. Each half cap h is carried by a lever i made in one piece
with the said half cap, the two levers i, i, turning on a common centre 7.
The extreme ends of the lower arms of the levers cross one another and
are provided with curved slots m, m, as represented. The shape of the half
caps h, h, and their levers i, i, is best seen in Figures 4 and 6 Jointed at 'q to
one side of the body d is a horizontal forked lever p, p, the branches of the lever
being used for each pair of caps h, h, respectively (see Figure 6). The free or
handle end p² of the forked lever p, p, projects from the body of the burner
in the manner represented in Figures 3, 4, and 5. Near the middle of each fork
or branch:p of the lever p; p, and on the side thereof, is a pin r, which engages in
the curved slots m, m, in the lower ends of the two levers i, i, carrying the half
cáps or extinguishers h, h.
By depressing the handle end pay of the lever p, p, into its lowest position, the
two halves h, h, of each cap or extinguisher are closed by the action of the pin rin
the curved slots m, m, and the wick cases are covered and the lamp extinguished,
as represented in Figure 3; and by raising the handle end 12 of the lever p, p, into
its highest position, the two halves of each; cap or extinguisher separate from one
another and uncover the wicks, and the lamp can be lighted, as represented in

page_text: Figure 4. Thus the movement of the horizontal lever p, p, in one or other direction
extinguishes the lamp or uncovers the wicks for lighting the lamp. The body d of
the lamp is perforated with holes in the ordinary manner for the admission of air,
but for the purpose of the better exhibiting those parts of the lamps constituting
our Invention we have omitted the said perforations.
We will now describe our arrangement for relighting the lamp: ―s is the additional
small wick holder situated between the two ordinary wick cases k, k, the lower end
of the said small wick holder s entering the top of the tube s*, and fitting loosely
therein. By this arrangement the small wick holders can be moved through a
small angle, so as to make it approach one or other of the two ordinary wick cases
k, k, as represented and indicated in Figure 5. The said small additional wick
holder s is carried by the rod or levert turning horizontally on the centre at u on the
body of the lamp. The additional wick holder 8 is returned to and held in its
normal position between the wick cases k, k, by means of the doubled spring v,
the free ends of which bear against the opposed faces of the said ordinary wick
cases k, k.
It will be seen by an examination of Figures 2 and 5 that the additional wick
case s terminates at about the same level as the principal wick cases k, k. By
means of the said additional wick cases and its wick a minute flame is kept
burning, and on extinguishing the lamp by the caps represented, or other caps, the
said minute flame is not extinguished. When it is wished to relight the lamp the
caps or extinguishers h, h, are removed from the wick holders k, l, and by turning
aside the rod or lever t the minute flame between the burners can be brought first
near one of the ordinary wicks k, and afterwards near the other of the said wicks,
so as to relight them, as will be understood by an examination of Figure 5. On
removing the hand from the rod or levert the minute flame of the middle wick s is
returned to the normal position, represented in Figure 2, by the action of the
spring v. Although we have represented our several improvements combined in one
lamp, yet our said improvements may be used separately.
Our improvements are applicable to lamps containing one wick only, or con-
taining double wicks, as represented in the Drawing.
Having now described the nature of our Invention, and the manner in which the
same is to be performed, we wish it to be understood that we claim as our Invention
of "Improvements in Lamps for Burning Volatile Oils,"
First. Combining the holder and gallery for carrying the chimney and globe and
the dome of the burner together, so as to constitute one piece or one article and
separate from the body of the burner, so that by removing the said separable part
the chimney and shade and dome are removed together, and the wick or wicks
exposed for trimming, as herein before described, and illustrated in the accompanying
Drawing.
Secondly. The arrangement or combination of the parts of extinguishers herein
before described, and illustrated in the accompanying Drawing.
Thirdly. The arrangement or combination of parts herein before described, and
illustrated in the accompanying Drawing, for relighting the lamp.
In witness whereof, we, the said Herbert Ernest Newton Mason and Joseph
Price, have hereunto set our hands and seals, this Twenty first day of
July, in the year of our Lord One thousand eight hundred and seventy
HERBERT ERNEST NEWTON MASON.
(L.S.)
JOSEPH PRICE.
(LS.)
Witness,
GEORGE SHAW.