IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE AND FIXED OLL.
Year: 1874

page_text: LETTERS PATENT to Herbert Ernest Newton Mason, of Handsworth,
in the County of Stafford, Designer and Modeller, for the Invention
OF IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE AND FIXED OLL. "
Scaled the 2nd March 1875, and dated the 21st November 1874.
PROVISIONAL SPECIFICATION left by the said Herbert Ernest Newton
Mason at the Office of the Commissioners of Patents, with his
Petition, on the 21st November 1874.
I, HERBERT ERNEST NEWTON MASON, of Handsworth, in the County
of Stafford, Designer and Modeller, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE AND FIXED
OILS," to be as follows:-
My Invention has for its object to obviate the necessity for the
frequent removal of the burner from the oil reservoir of the lamp for
the purpose of gaining access to the said oil reservoir for filling the
same with oil, and my said Invention consists in so constructing and
arranging the parts of the said lamps that a large storage of oil is

page_text: contained in the lamp, portions of which oil are supplied from time to
time as required to the burner of the lamp.
In constructing a lamp according to my Invention I make the oil
reservoir of a size sufficient to hold oil for several days' consumption, or
for consumption for any required period, and I combine with the said oil
reservoir a dipping vessel, into which the wick or wicks of the lamp dip
to convey oil to the burner. The said dipping vessel is of such a size as
to hold sufficient for an ordinary burning of the lamp. The said dipping
vessel is open at top, and is capable of a vertical sliding motion in the
oil reservoir.
By depressing the dipping vessel in the oil reservoir it receives oil
therefrom, and by raising the charged dipping vessel to the top of the
reservoir the wick or wicks of the lamp dip therein, and the lamp is
ready for use.
.
1
I support and raise and lower the dipping vessel in the oil reservoir by 1
the following mechanical combination of parts: -In the axis of the oil
reservoir is a quick-threaded vertical screw turning in a bearing at the
bottom of the oil reservoir, and in a cross plate or bearing at the top of
the said reservoir. A screw box is made in the axis of the dipping vessel,
which screw box works upon the axial screw described.
The dipping vessel is guided in its sliding motion upon a fixed vertical.
rod in the oil reservoir, the said fixed guiding rod also preventing the
rotation of the dipping vessel upon the screw. The axial screw is rotated
by means of bevil gearing worked by a cross axis or spindle, the outer
end of the said axis or spindle being provided with a handle which a
projects from the side of the upper part of the lamp.
In order to prepare the lamp for use the handle at the side of the
lamp is turned so as to give rotation through the bevil gearing to tho
axial screw. By the rotation of the said screw the dipping vessel is
depressed in the oil reservoir, and is thereby filled with oil. By reversing 3
the motion of the handle the dipping vessel is raised to the top of the oil
reservoir, and brought immediately under the burner so that the wick or
wicks of the said burner dip therein. The lamp is then ready for use.
The bevil gearing by which the screw is rotated is covered and protected
by an arched plate, over which the wick or wicks pass to the dipping
vessel.

page_text: Lamps constructed according to my Invention only require to be filled
with oil at long intervals, instead of being filled daily, as in ordinary
lamps. Great convenience and cleanliness in the use of the lamps are
thereby obtained, and the danger which ordinarily attends the filling of
the lamp when volatile oils are employed is much reduced. An indicator
shows the position of the dipping vessel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Herbert Ernest Newton Mason in the Great Seal
Patent Office on the 17th May 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HERBERT
ERNEST NEWTON MASON, of Handsworth, in the County of Stafford,
Designer and Modeller, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of November, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Herbert Ernest Newton Mason,
Her special license, that I, the said Herbert Ernest Newton Mason, my
executors, administrators, and assigns, or such others as I, the said
Herbert Ernest Newton Mason, my executors, administrators and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE
AND FIXED OILS," upon the condition (amongst others) that I, the said
Herbert Ernest Newton Mason, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Herbert Ernest Newton Mason, do

page_text: the same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :—
My Invention has for its object to obviate the necessity for. the
frequent removal of the burner from the oil reservoir of the lamp for
the purpose of gaining access to the said oil reservoir for filling the
same with oil, and my said Invention consists in so constructing and
arranging the parts of the said lamps that a large storage of oil is
contained in the lamp, portions of which oil are supplied from time to
time as required to the burner of the lamp.
In constructing a lamp according to my Invention I make the oil
reservoir of a size sufficient to hold oil for several days' consumpton, or
for consumption for any required period, and I combine with the said
oil reservoir a dipping vessel, into which the wick or wicks of the lamp
dip to convey oil to the burner. The said dipping vessel is of such as
size as to hold sufficient oil for an ordinary burning of the lamp. The
said dipping vessel is open at top, and is capable of a vertical sliding
motion in the oil reservoir. By depressing the dipping vessel in the oil
reservoir it receives oil therefrom, and by raising the charged dipping
vessel to the top of the reservoir the wick or wicks of the lamp dip
therein, and the lamp is ready for use.
I support and raise and lower the dipping vessel in the oil reservoir
by the following mechanical combination of parts :-In the oil reservoir
is a quick-threaded vertical screw, turning in a bearing at the bottom of
the oil reservoir, and in a bracket or bearing at the top of the said
reservoir. A screw box is made in the dipping vessel, which screw box
works upon the screw described.
The dipping vessel is guided in its sliding motion upon a fixed vertical
rod in the oil reservoir, the said fixed guiding rod also preventing the
rotation of the dipping vessel upon the screw. The screw is rotated by
means of bevil gearing worked by a cross axis or spindle, the outer
end of the said axis or spindle being provided with a handle which
projects from the side of the upper part of the lamp.
In order to prepare the lamp for use tho handle at the side of the
lamp is turned so as to give rotation through the bevil gearing to the
screw. By the rotation of the said screw the dipping vessel is depressed
in the oil reservoir, and is thereby filled with oil. By reversing the
motion of the handle the dipping vessel is raised to the top of the oil

page_text: TOSCEVOIT, and brought immediately under the burner, so that the WICK
or wicks of the said burner dip therein. The lamp is then ready for
use. An indicator may be employed to show the position of the dipping
vessel.
Having explained the nature of my Invention, I will proceed to describe,
with reference to the accompanying Drawing, the manner in which the
same is to be performed.
Figure 1 represents in vertical section, partly in elevation, a lamp for
burning paraffin oil or other oil, constructed according to my Invention,
the sliding dipping vessel of the lamp being represented in its raised
position at the top of the oil reservoir ready for use; Figure 2 repre-
sents the same, with the dipping vessel depressed to the bottom of the
oil reservoir for receiving a charge of oil therefrom; and Figure 3 repre-
sents a horizontal section of the same taken on the line a, a, of Figure 2.
The same letters of reference indicate the same parts.
•
d, d³, is the oil reservoir consisting by preference of a metallic liquid-
tight vessel of the form represented, the said reservoir being situated
within the external vase, case, or covering c of the lamp. The said
vase, case; or covering c may be made of any desired ornamental shape. .
The oil reservoir is of a size sufficient to hold oil for several days' con-
sumption, or for consumption for any required period; e is the duplex
burner of the lamp fastened in the usual way to the collar fon the top
or cover g of the oil reservoir, a ring of cork or other bad conductor of
heat isolating the burner from the cover; bis the dipping vessel capable
of a vertical sliding motion in the oil reservoir d. The said dipping
vessel 6 is open at top, and has by preference a conical figure, and when
the said dipping vessel has been depressed to its full extent it fits in the
conical well part ď² of the oil reservoir d (see Figure 2), so that the last
charge of oil may pass into the dipping vessel. Fixed on the under
side of the top or cover g of the lamp is an annular flange h, the inner
side of which is covered or lined with cork or other bad conductor of
heat. A lining of cork i is also interposed between the top of the cover
and the flange h. When the sliding dipping vessel b is raised for use
into the position représented in Figure 1 the edge of the open top of the
said vessel bears against the cork lining of the flange h, and forms
a tight joint, and also isolates the dipping vessel from the heat of the
burner e.

page_text: . I prefer to support the dipping vessel band raise and lower it in
the oil reservoir d by the following arrangement of parts :-k is a
vertical quick-threaded screw turning at bottom in the bearing 1, and at
top in the bearing or bracket m fixed to the under side of the top or
cover g of the oil reservoir. In the dipping vessel b is a screw box n, or
a tube having a projecting pin, which pin works in the thread of the
screw k, as represented. The dipping vessel b is guided in its sliding
motion in the oil reservoir upon a fixed vertical rod
P, a tube Չ in the
said dipping vessel sliding upon the said fixed rod p. By means of
the said rod p the dipping vessel is prevented from rotating. The screw k
is rotated by means of a bevil wheel on the cross axis or spindles, the
outer end of the said axis having a handle or thumb plate s² for turuing
it. On the upper end of the screw & is a bevil pinion u, with which the
bevil wheel gears. By rotating the screw k in one or other direction
by turning the handle s² the screw box n of the dipping vessel travels
upon the said screw, and the said dipping vessel is raised or lowered in
the oil reservoir. When the dipping vessel b is raised to the top of the
oil reservoir d, as illustrated in Figure 1, the wicks of the burner dip
into the said vessel b, and the lamp is ready for use. When the dipping
vessel requires to be refilled with oil the handle &
cause the dipping vessel to descend in the oil reservoir, and take up oil
from the said reservoir. By reversing the motion of the handle s³ the
filled or charged dipping vessel is raised to the top of the oil reservoir,
and the lamp is again ready for use. In this way the large storage of
oil contained in the oil reservoir may be supplied from time to time as
required to the burner of the lamp.
is turned so as to
Although I have found that the mechanical arrangement described and
represented for raising and lowering the dipping vessel in the oil reser-
voir answers well in practice, yet I do not limit myself thereto, as
various other mechanical contrivances may be adopted for effecting
that object. For example a rack may be attached to the sliding dipping
vessel b, and a pinion on a cross axis or spindle be made to gear with
the said rack, and raise or lower the dipping vessel; or the dipping
vessel may be connected to an endless band situated at the side of the
oil reservoir, working over pulleys at the top and bottom of the oil
reservoir, the said dipping vessel travelling between the two pulleys at
one side of the endless band. One of the pulleys described is turned by
a handle projecting from the side of the lamp.

page_text: Lamps constructed according to my Invention only require to be
filled with oil at long intervals, instead of being filled daily, as in
ordinary lamps. Great convenience and cleanliness in the use of the
lamps are thereby obtained, and the danger which ordinarily attends
the filling of the lamp when volatile oils are employed is much
reduced.
Having now described the nature of my Invention, and the manner in
which the same is to be performed, I wish it to be understood that I do
not limit myself to the precise details hercin-before described and illus-
trated, as the same may be varied without departing from the nature of
my Invention but I claim as my Invention, the improvements in lamps
for burning volatile and fixed oils herein-before described and illustrated
in the accompanying Drawing, that is to say, the combination with the
oil reservoirs of the said lamps of a separate dipping vessel, into which
vessel in its normal or raised position the wick or wicks of the burner
dip, the said dipping vessel being capable of a vertical sliding motion in
the said oil reservoir for refilling it with oil, and for raising the filled
vessel to the top of the oil reservoir for supplying the oil in the dipping
vessel to the wick or wicks of the burner, the several parts of the lamp
being constructed and combined substantially as and for the purposes
described and illustrated.
In witness whereof, I, the said Herbert Ernest Newton Mason,
have hereunto set my hand and seal, this Seventh day of May, in
Witness,
HERBERT ERNEST NEWTON MASON. (L.S.)
Richard SkerRETT,
Clerk to George Shaw,
Birmingham.