Improvements in Flame Spreaders for Oil Lamps.
Year: 1899

page_text: Date of Application, 30th Mar., 1899-Accepted, 6th May, 1899
COMPLETE SPECIFICATION.
Improvements in Flame Spreaders for Oil Lamps.
I, SALOMON FALK, of 83, Farringdon Road, in the County of London, Manu-
facturer, do hereby declare the nature of this invention (a communication to me
by Carl Holy, of 23A, Oranien Strasse, Berlin, in the German Empire, Manu-
facturer,) and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
This invention relates to flame spreaders for oil lamps having central draught
air tubes and comprises the improvements hereinafter described.
Flame spreaders for oil lamps having annular wicks frequently comprise a
disc upon the end of a perforated tubular part which fits into the inner wick
tube. The part of the wick tube into which the spreader fits often becomes
unduly heated when the lamp is in use and causes the charring of the wick. The
object of this invention is to provide means for preventing this undue heating
and charring and to this end I construct the flame spreader in such a manner
that the air passing therethrough is caused to bathe the inner surface of the
wick tube thereby cooling it.
In the accompanying drawing:
Figure 1 is a sectional elevation of a portion of a lamp having the improved
flame spreader fitted thereto; and
Figure 2 is an elevation of the flame spreader.
A is the wick holder portion of the lamp and a the wick tube, both these parts
being of ordinary construction.
The improved flame spreader comprises the cylindrical portion & which is per-
forated in the usual manner and the upper cap or disc c. The cylindrical
portion b is, however, in that part which fits into the inner wick tube formed
with an external recess or depression 6 around its periphery, the said recessed
portion being provided with perforations or holes 62. With this arrangement
it will be obvious that as the air flows up through the wick tube and flame
spreader in the usual manner it can in the course of its passage pass through the
perforations 2 in the recess b' so as to bathe the inner surface of the wick tube
and thereby keep it cool, the air then again entering the cylindrical portion b
of the flame spreader and escaping through the same in the usual manner.
The downwardly extending flange of the disc is also advantageously
formed with a number of perforations c² which allow the escape of the air
impinging against the underside of the disc so that the said air can be thoroughly
mixed with the flame and assist in effecting complete combustion.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
-
1. The combination with an oil lamp having an annular wick of a flame
spreader comprising a cap or disc and a cylindrical perforated portion the said
cylindrical portion being provided in the part which fits into the wick tube with

page_text: an external annular depression which is perforated or formed with holes, sub-
stantially as, and for the purpose, herein before described.
2. The improved flame spreader, herein before described and illustrated in the
accompanying drawing.
Dated the 30th day of Vavak 1900
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.