ention for Improving the Construction and Efficiency of Kerosene Lamps and Oil-stoves.
Year: 1893

page_text: Date of Application, 9th Feb., 1893-Accepted,
ORGIFICATION.
ention for Improving the Construction and Efficiency of Kerosene
Lamps and Oil-stoves.
,CHARLES TRENCH, residing at 25 City Square, Boston, Charlestown District,
the County of Suffolk, and State of Massachusetts, U.S.A., Electrician, do
reby declare the nature of my invention and in what manner the same is to
performed; to be particularly described, and ascertained in, and by the following
tement:-
My invention relates to improvements in oil-burners and appertains to Letters
atent Number 613, dated January 14th 1888.
The object of my present invention is to obviate certain deficiencies of con-
ruction, and adaptation existing in the original invention, for which said Letters
Patent were granted to me. Therein I employ metallic devices, technically termed
insulators," or separators, elevated a prescribed distance above the vick-tube top,
nd adjusted to intervene between the wick-tube and the flame.
My purpose herein is to improve, and more efficiently construct the various parts
of the insulator, and to provide means for more effectively adapting it to the
various types of oil-burners to which it may be applied..
I effect this object in the manner herein after described and illustrated in the
annexed drawings, forming a part of this Specification, wherein,
Fig. 1 (case A) represents a perspective view of my invention as applied to an
ordinary flat-wick kerosene oil-burner.
Fig. 2 indicates a plan of the insulator for a flat-wick oil-burner before being
pressed into the required form for its adjustment within the cone or deflector of
said burner.
Fig. 3 is a transverse section thereof on line 3 of Fig. 2, pressed into shape, and
ready for attachment to the cone ;
Fig. 4 being a perspective view of said cone to exhibit the tongue-slots, clinched
on the outside of said cone.
Fig. 5 designates, in transverse central section, the assemblage of the parts, ready
for operation.
The drawings, indicated in case B, represent my invention applied to that class
0 of lamps known as central-draft or circular-wick burners, in which flame-spreaders
are employed.
Fig. 1 denotes an outer foraminous construction, for surrounding the circular
wick-tube of a central-draft lamp-with a horizontal platform supported by a
vertical wall, the said platform being elevated a slight distance above the wick
35 tube.
'
Fig. 2 illustrates the inner circular foraminous diaphragm surrounding the flame
spreader a slight distance above the wick-tube, when the lamp is of the desig
exhibited in Fig. 7.
Fig. 3 is a foraminous structure, substantially corresponding to the device show
40 in Fig. 1.
45
Fig. 4 denotes a vertical longitudinal section of my invention, as applied to o
form of central-draft burners, with flame-spreader, and exhibited in Fig. 6.
Fig. 5 indicates, in similar section, the assembled devices when used in connecti
with a central-draft burner, and flame-spreader, seen in Fig. 7.
I adapt my invention to these examples of popular lamps to exhibit, in perspecti
the applicability of my improvements thereto.
In the drawing, indicated by case C,
Fig. 1 represents a perspective view of that portion of an oil-stove burner wh
embodies my improvement.

page_text: Figs. 2 and 3 are perspective views of two similar, and detached portions of my
invention, Fig. 2 being a perspective view of the upper side, and Fig. 3 a perspective
view of the under side of the same.
Fig. 4 is a transverse section, on line 4 of Fig. 1, showing the peculiar form of
the device in relation to the wick, and wick-tube of a common oil-stove burner.
Similar letters of reference indicate corresponding features throughout the
several views.
Referring to case A of the drawings, A designates the burner of a kerosene-oil
lamp, and B the cone, to which my improved insulator is applied. C is the
foraminous insulator, having its central aperture D to receive the wick, which is
supported by the wick-tube E when the parts are adjusted for illuminating.
F designates the supporting arms, four in number, equidistant, and projecting from
the raised periphery of the insulator, forming an integral part thereof, as also are
the clinch-tongues G, springing from said supporters or arms. These tongues are
of diminished width to form shoulders as at H, which abut against the inside of
the cone B, through the wall of which they are securely clinched as at I, I', being,
as will be observed, pointed to facilitate their admission through the tongue-
slots I, I'in said cone. J is an annular projecting rim, from which the supporting
arms F, and their co-acting tongues G arise in the process of striking up. the metal,
so that a reinforcing rim, at an angle from the plane of the foraminous surface or
floor C, is formed, imparting greater strength, and stiffness to the structure.
I now refer to the drawings, indicated by case B, which show the adaptation of
my invention to an oil-burner of the central-draft type.
A, Fig. 1, is the insulator, comprising the vertical, circular wall A², upholding
the horizontal perforated platform B, provided, integrally, with the raised annular
rim C, and the circular opening D, adjusted a slight distance above the wick-
tube F. The said rim C imparts strength, and prevents recurvation of the con-
struction, the whole being supported within and by the circular wall A³, over which
it may slightly project as at a.
In Fig. 7, which designates a different type of central-draft burner, there is an
inner circular perforated diaphragm J, which, by means of the opening N, is
adjusted round the shank M of the flame-spreader L, the outer circular diaphragm Q
being constructed, and supported similar to the diaphragm previously described in
Fig. 6. This outer construction in both the above described central-draft burners
are removeably supported upon the annular shoulders G, G2, as seen in Figs. 4
and 5.
Referring now to case C of the accompanying drawings D, D' represents the
device, which I have termed an insulator, adjusted to an ordinary oil-stove. The
aforesaid device is made of perforated sheet brass, and firmly secured to a
foraminated plate B; E, E' are oblique flanges, which, bent downwards, serve to
strengthen, by re-inforcing the device along the wick-slot H, and also to serve as
guides to facilitate the passage of the wick K upwards through the wick-slot H, as
clearly shown in Fig. 4. F, F' are horizontal flanges which strengthen the base
of the insulator D, D', and also strengthen the foraminated plate B, to which said
flanges are firmly secured by rivets L, L. Upon each of the separate parts D, D'
are projections I, I', as shown in Figs. 2 and 3; the projections on one of these
parts are lapped over and fastened by rivets i, i to the projections of the
corresponding parts, thereby forming the slot H for the passage of the wick K..
Having now particularly described, and ascertained the nature of my said
improved invention, and in what manner the same is to be performed I declare
that what I claim is-
I. In an oil-turner, the combination therewith of a foraminous insulator, having
the herein before described radial arms, and tongues, adapted to its support within
its co-acting cone or deflector, and further provided with an annular re-inforcing
rim, integral with, and projecting beyond its perforated floor, substantially as
set forth.

page_text: II. In a burner for hydro-carbon oils, the foraminous apertured insumator
rovided with radial arms F, terminating in clinch-tongues G in a manner to form
be abutting shoulders H, adjacent to the base of said tongues and the re-inforcing
im J; all arranged, combined, and adapted to operate in conjunction with the
one, or deflector B provided with tongue-slots I for the reception of said tongues,
o as to unite said devices, and impart additional strength thereto substantially as
pecified.
III. In an oil burner, adapted to central-draft lamps, the foraminous, circular,
moveable device A (case B), constructed with a wall, supporting, and integral with
horizontal perforated platform; the said platform provided with a central
circular aperture, surrounded by an annular raised rim, and adjusted a slight
distance above the top of the wick-tube, substantially in the manner, and for the
purpose specified.
IV. In a central-draft oil-burner the foraminous insulator A., as herein before
described in combination with a flame spreader H to insulate the flame from the
top of the wick-tube, and prevent the heating thereof substantially as described,
and in the manner specified.
V. In combination with a central-draft burner and flame-spreader, the perforated
diaphragm Q, provided with the herein before described means for its detention,
and the co-acting wall P, adapted when organized to separate the flame from the
wick-tube, and to increase the illuminating capacity of said flame, substantially as
described.
VI. In combination with a central-draft lamp and flame-spreader, the herein
before described wall, and apertured platform, the circular perforated diaphragm
supported around the shank of a flame spreader, substantially as set forth.
VII. In the foraminated insulator D, D' (case C) for oil-stove burners, the
combination of the part D with the part D', each provided with the projections I, I',
and rivetted firmly together, substantially as, and for the purpose specified.
VIII. In the foraminated insulator D, D' for oil-stove burners, the wick-slot H,
O provided with longitudinal oblique flanges E, E', bent downwards, and forming an
integral part of said insulator, to strengthen the said slot, and prevent recurvation
of the insulator along the edges of the wick-slot H, as described.
IX. In an oil-burner, the herein described insulator, provided with re-inforcing,
and wick-guiding oblique flanges E, E', the horizontal base flanges F, F¹ thereof,
5 adapted to support said insulator upon the diaphragm B, with which it is
arranged, constructed, and combined to operate, substantially, and for the purpose
set forth.
January 1893.
DENCH
CHARLES THỲNCH