Kerozene Lamps and Oil Stoves.
Year: 1888

page_text: Date of Application, 14th Jan., 1888
Specification Accepted, 14th Sept., 1888
Kerozene Lamps and Oil Stoves.
I, CHARLES TRENCH, residing at 55 Kilby Street in the City of Boston, in the
County of Suffolk and State of Massachusetts U.S.A. mechanical 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:-
In kerozene oil-burners, as heretofore constructed, the tube which holds the
adjustable wick, and known as the wick-tube, becomes excessively heated by being in
direct contact with the flame. By reason of this heated condition of the wick-tube,
the oil, as it ascends therein, also attains an extreme temperature; the result is that
vapour, or
offensive odours are emitted from the overheated oil, and also inflammable
gas, which settles in the oil-fount and becomes a source of accidents known as
explosions.
The object of my improvement is to obviate all these defects by preventing, or
cutting off, all contact between the said wick-tube and the flame.
I attain this object by means of a device, which may be appropriately termed an
Insulator, constructed, and adjusted, in the manner illustrated in the accompanying
drawings in which
Fig. 1 is a perspective view of the Insulator.
Fig. 2 is an inverted view, showing, in perspective, the interior of the device.
Fig. 3 is a sectional side view of the insulator (on line a Fig. 4) showing the device
adjusted to an ordinary lamp or oil burner with reservoir R.
Fig. 4 is an end view of the same.
Fig. 5 represents, in perspective, the method of attaching the Insulator to the wick-
tube and diaphragm of an ordinary lamp, or oil burner.
Fig. 6 is a top view of an Insulator of circular form, provided with two slots for
the passage of the wicks of a duplex burner.
Fig. 7 is an Insulator constructed for an oil-burner with a circular wick.
Similar letters refer to similar parts throughout the several views.
When applied to an oil-burner with a flat wick and wick-tube the Insulator A A¹
consists of a perforated metallic plate of suitable size, formed into the shape of an arch

page_text: or curve, and provided with a slot i for the passage of the wick B; When applied to
an oil-burner with a round wick (see Fig. 7) the Insulator A, A¹ consists of a
perforated plate of circular form, made flat or slightly convex on the top and provided
with a slot suitable for the passage of a round wick.
The Insulator A A¹ is adjusted to an oil-burner in such a manner that the edges of
the slot i enclose the wick B a slight distance above the wick-tube D, and below the
cone n. The aforesaid slot i is made to conform to the shape of the wick B so that
the latter can pass freely through the said slot i by the manipulation of the rack and
handle J.
In order to secure the Insulator A A' in its position, two braces d d' (see Fig. 2)
are employed, provided with notches or curvatures CC which conform to the breadth
and thickness of the wick-tube D. By this means the Insulator is maintained in its
place, and can be readily removed, and readjusted when required.
When the Insulator Å A¹ is placed in its position and the wick B passed through
the slot i to an elevation suitable for ignition, it will be perceived that when the wick
is ignited the flame f will be located upon the top of the Insulator A A¹ instead of
upon the wick-tube D, as in ordinary oil burners; by thus transposing the base of the
flame from the wick-tube D to the Insulator A A¹ the heat usually generated upon
said tube is entirely removed, and the object of my invention attained.
A salient feature connected with the operation of the Insulator A A¹ is that the
part E E of the wick which extends between the wick-tube and the Insulator cannot
possibly ignite, hence the flame ƒ cannot come in contact with the wick-tube D.
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
1. The combination, in an oil burner, of the cone n the wick-tube D, and the
adjustable wick B with the perforated Insulator A A', slotted for the passage of the
wick B, and adjusted in such a manner that when the wick is ignited the flame will
be located upon the said Insulator, while the edges of the slot i will enclose the wick
a slight distance above the wick-tube D, and prevent all contact between the wick-
tube and the flame, substantially as set forth.
2. In an oil burner, the wick-tube D and the non-ignitible portion E E¹ of the
wick B, in combination with the perforated and slotted Insulator A A³, adjusted and
operating in the manner herein described and for the purpose specified.
January 2nd 1888