Improvements in Gas Lamps.
Year: 1891

page_text: Date of Application, 1st June, 1891-Accepted, 4th July, 1891
Improvements in Gas Lamps.
| ALEXANDER OGILVIE BROWN of 27 Holyrood Quadrant Glasgow, in the
County of Lanark, North Britain Gas 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 :--
My invention which relates to improvements in gas lamps is more especially
applicable to that class of lamps having an Argand burner or burner of similar
construction.
The object of my said improvements is to provide suitable means for converting
the flame which in the aforesaid type of burner is usually cylinderical in form and
more or less inclined to be red in colour, into a tulip shaped flame of such brilliancy
as to resemble the light of an electric incandescent lamp. This I do by placing a
deflector or spreader at a suitable distance above the burner. This deflector or
spreader is of hollow conical form with a bell mouth opening carried on the top of
a stem or spindle which is screwed into a gas chamber at the point of ramification
of the four branch tubes which carry the gas to the burner as will be well
understood in the "Argand" burner.
The illuminating power of the lamp is intensified by placing a hot air or
regenerative chamber around the burner having rows of perforations cut around the
side and top of the said chamber; or the top is or may be covered with wire
gauze.
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In order that my invention may be more properly understood I have hereunto
appended a sheet of drawing whereupon A, represents the "Argand burner.
C the air passages D, the gas supply pipe E, the branch tubes. F, the hot air or
regenerative chamber, the perforations cut around its sides. y the perforations
made in the roof G, which is preferably of the shape shewn in the figure. H, is
the burner; h, a central air passage, indicated by dotted lines. I, is the stem or
spindle J, the deflector or spreader. j, represents the flame thus produced by the
said deflector or spreader. K is the transparent globe; L, a coronet supporting an
opal canopy or dome M, and N is the chimney for carrying off the products of
combustion.
The lamp to which my improvements are applied may be used with a wall
bracket, a lobby or hall pendant, a gasalier or with any other form of gas fitting.
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. In combination with an "Argand" burner, or a burner of the like construction,
a deflector or spreader, preferably of conical form, so placed relatively with the
burner that the flame is converted into a tulip shape of brilliant whiteness as
herein before described and shewn in the annexed drawing.
2. In combination with an << Argand burner, and conical deflector or spreader
herein before described, a hot air or regenerative chamber, provided with ducts or
passages for inflowing air, with holes or perforations cut around its sides and top or
roof, which is preferably of hollow form as shewn in the drawing, for supplying
heated air to the flame as and for the purposes hereinbefore described and
illustrated on the annexed sheet of drawing.
Dated this 30th day of May 1891.
ALEXANDER OGILVIE BROWN,
27, Holyrood Quadrant, Glasgow, Applicant.