A NEW OR IMPROVED MATERIAL OR COMPOUND TO BE BURNT IN LAMPS FOR ILLUMINATING PURPOSES
Year: 1879

page_text: LETTERS PATENT to Alfred Norris, of Finsbury Park, in the County of
Middlesex, Gentleman, for the Invention of "A NEW OR IMPROVED MATERIAL
OR COMPOUND TO BE BURNT IN LAMPS FOR ILLUMINATING PURPOSES."
PROVISIONAL SPECIFICATION left by the said Alfred Norris at the Office of
the Commissioners of Patents on the 6th March 1879.
ALFRED. NORRIS, of Finsbury Park, in the County of Middlesex, Gentleman.
"A NEW OR IMPROVED MATERIAL OR COMPOUND TO BE BURNT IN LAMPS FOR
ILLUMINATING PURPOSES."
This Invention relates to a new or improved material or compound to be burnt in
lamps for illuminating purposes. According to my Invention I employ petroleum
spirit as the base of my material. I first take say fifteen pounds of potatoos, and
after well washing them crush or grate same, and then sprinkle the whole with salt
in the proportion, by weight, of one of salt to four of potatoes, and add four and a
half pounds of sulphuric acid. This compound is allowed to remain for about
thirty minutes, or until the resulting fermentation is about ended. I then add a
like further amount of salt and sulphuric acid, and well mix the whole. I now
take a barrel of pure petroleum spirit, of say about forty six gallons, and put the
above compound into it, and then add about ten pounds of pure alum finely
powdered, and a further four pounds of salt, and about eight to ten pounds of gum
camphor. The whole is then allowed to stand for about thirty days with occasional
stirring, and is then drawn off fit for use, leaving the sediment behind.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Norris in the Great Seal Patent Office on the 6th September
1879.
ALFRED NORRIS, of Finsbury Park, in the County of Middlesex, Gentleman.
"A NEW OR IMPROVED MATERIAL OR COMPOUND TO BE BURNT IN LAMPS FOR
ILLUMINATING PURPOSES."
This Invention relates to a new or improved material or compound to be burnt in
lamps for illuminating purposes.
According to my Invention I employ petroleum spirit as the base of my material.
first take say 15 lbs. of potatoes, and after well washing them crush or grate same,
and then sprinkle the whole with salt in the proportion, by weight, of about one
of salt to four of potatoes, and add four and a half lbs. of sulphuric acid. This
compound is allowed to remain for about thirty minutes, or until the resulting
ebullition is about ended. I then add a further like amount of salt and sulphuric
acid and well mix the whole. I now take a barrel of pure petroleum spirit, of say
about forty six gallons, and put the above compound into it, and then add about
ten pounds of pure alum finely powdered, and a further four pounds of salt, and
about eight to ten pounds of gum camphor or other suitable carbonaceous substance.
The whole is then allowed to stand for about thirty days with occasional stirring,
and then when thoroughly settled is drawn off fit for use, leaving the sediment or
residue behind.
In witness whereof, I, the said Alfred Norris, have hereunto set my hand
and seal, this Sixth day of September, One thousand eight hundred and
seventy nine.