IMPROVEMENTS IN SAFETY AND OTHER LAMPS, AND IN GAS BURNERS
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
HEADLEY PARISH, of Eaton Place, in the County of Middlesex, Esquire, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Eighth day of February,
One thousand eight hundred and forty-nine, in the twelfth year of Her reign,
did, for Herself, Her heirs and successors, give and graut unto me, the said
Henry Headley Parish, my exors, adiñors, and assigns, Her especial licence,
full power, sole privilege and authority, that I, the said Henry Headley
Parish, my exors, adññors, and assigns, or such others as I, the said Henry
Headley Parish, my exors, adñiors, or assigns, should at any time agree with,
and no others, from time to time and at all times during the term of years
therein expressed, should and lawfully might make, use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, and in the
Islands of Jersey, Guernsey, Alderney, Sark, and Man, and in all Her said
Majesty's Colonies and Plantations abroad, the Invention of "IMPROVEMENTS
IN SAFETY AND OTHER LAMPS, AND IN GAS BURNERS" (partly communicated by
a Foreigner resident abroad, and partly invented by me); in which said
Letters Patent is contained a proviso that I, the said Henry Headley
Parish, should cause a particular description of the nature of my said Invention,
and in what mauner the same is to be performed, by an instrument in writing

page_text: Figure 1 shews a safety lamp. Figure 2 is a section thereor. a is the
vessel containing oil, which is similar to those ordinarily used, having the bent
wire to snuff the wick contained in the wick tube c. The air to support
combustion is admitted through the perforated plate e, through the cylinder f
of wire gauze, and then through the cone f¹ of wire gauze. 9 is another
eylinder of wire gauze, having within it a strong glass of the internal form
shewn, or it may be of a convex form, as shewn in the Drawing by dotted
lines. is a chimney, passing up through i, which is a perforated sheet of
wire gauze, which is slightly coned, through which chimney the heated
products pass into the upper part or chimney, which consists of the cylinder of
wire gauze i³, and the continuation of metal having a disc of wire gauze over
the top. By this arrangement of parts, not only will the lamp be made more
safe, but the combustion will be greatly improved. It is preferred, and it
an improvement, that the metallic gauze used for this and other safety lamps
should be subjected to the process of electro-coating, so as to combine all into
one; and further, that the outer cylinder of wire gauze which is over the
glass in the present lamp should be electro-coated with silver, as beneficial
results are thereby obtained in reflecting the light. It should be stated that
in place of glass, crystal or tale or any other natural or artificial transparent
substance may be used, formed into the shape shown. I would state that the
glass, with its cover of wire gauze coated with silver, and the cylinder of wire
gauze above, are applicable to other lamps. I would remark, in respect to
this part of the Invention, with the exception of the oil vessel, all the
arrangements shewn and described are new, and claimed by me.
I will now describe that part of the Invention which relates to gas burners.
Figure 3 shows a gas burner, with apparatus applied thereto, according to
this part of the Invention. j is an ordinary gas burner, with a cone of wire

page_text: gauze k below, and 7 is another conical ring of wire gauze above the burner.
m is a deflecting button. The gallery for the glass is so arranged as to bring
the lower end of the glass chimney on a level with the top of the conical ring
k of wire gauze. The peculiar novelty of this arrangement is the combining
the use of this upper and under wire gauze, by which the atmospheric air will
be better applied, and the gas better consumed.
In witness whereof, I, the said Henry Headley Parish, have hereunto
set my hand and seal, this Eighth day of August, in the year of our
Lord One thousand eight hundred and forty-nine.