SECURING PERFECT IMMUNITY FROM DANGER IN THE USE OF PARAFINE, CAMPHINE, AND OTHER LAMPS LIABLE HITHERTO TO EXPLODE. WHETHER FED BY ROCK OIL, CRYSTAL OIL PARAFINE, CAMPHINE, BELMONTINE, OR OTHER COMBUSTIBLE CARRONACEOUS OILS
Year: 1866

page_text: LETTERS PATENT to Edward Howard, a Member of the Royal College of
· Physicians. of Loudon, resident at Redhill, Surrey, for the Invention of
"SECURING PERFECT IMMUNITY FROM DANGER IN THE USE OF PARAFINE,
CAMPHINE, AND OTHER LAMPS LIABLE HITHERTO TO EXPLODE. WHETHER FED BY
ROCK OIL, CRYSTAL OIL PARAFINE, CAMPHINE, BELMONTINE, OR OTHER
COMBUSTIBLE CARRONACEOUS OILS."
Sealed the 5th January 1867, and dated the 27th October 1866.
PROVISIONAL SPECIFICATION left by the said Edward Howard at the
Office of the Commissioners of Patents, with his Petition, on the 27th
October 1866.
1, EDWARD HOWARD, a Member of the Royal College of Physicians of
London, resident at Redhill, Surrey, do hereby declare the nature of the said
Invention for "SECURING PERFECT IMMUNITY FROM DANGER IN THE USE OF PARA-
FINE, CAMPHINE, AND OTHER LAMPS LIABLE HITHERTO TO EXPLODE, WHETHER FED BY
ROCK OIL, CRYSTAL OIL, PARAFINE, CAMPHINE, BELMONTINE, OR OTHER COMBUSTIBLE
CARBONACEOUS OILS," to be as follows:-
To any ordinary lamps for the burning of the aforesaid or like materials of
combustion a glass tube or a tube of thin brass adapted in size and shape to
the size and shape of the wick is affixed to the under surface of the cap (or
cover) so that the short-tube-through which the wick-passes does not touch

page_text: the new tube before named. The aforesaid new tube is continued down to
within one quarter of an inch of the bottom of the lamp vessel.
Moreover
the cap has on its outside a pin hole drilled so as to have its outlet outside the
chimney glass, or at least clear of the top of the tube whence the wick issues.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Howard in the Great Seal Patent Office on the 7th
January 1867.
•
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
HOWARD, a Member of the Royal College of Physicians of London, resident
at Redhill, Surrey, send greeting.
WHEREAS Her most Excellent. Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of October, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Edward Howard, Her special licence that I, the said Edward Howard,
or my executors, administrators, and assigns, or such others as I. the said Edward
Howard, or my executors, administrators, and assigns. should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, usc.
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "A SAFETY LAMP FOR
SECURING PERFECT IMMUNITY FROM DANGER IN THE USE OF PARAFFINE, CAMPHINE.
AND OTHER LAMP3 LIABLE HITHERTO TO EXPLODE. WHETHER FED BY ROCK OIL,
CRYSTAL OIL, PARAFFINE, CAMPHINE, BELMONTINE. OR OTHER COMBUSTIBLE CAR-
BONACEOUS OILS," upon the condition (amongst others) that I, the said
Edward Howard. or my exccutors or administrators, by an instrument. in
writing under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention. and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Howard, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
The nature of my Invention consists in preventing the explosion of lamps

page_text: used for burning any carbonaceous combustible oils or spirits by absolutely
preventing communication of the flame of the wick to the upper part of the
vase or chamber containing the oil or spirit to be consumed.
I construct my safety lamp in any of the forms in which paraffin lamps are
commonly made; 1 then add a tube (A) made of any material insoluble in
the spirit or oil to be burned, and of a size and shape to fit easily over the
wick, whether that be round or flat. This tube (A) I fix close to the under
surface of the cap (C) one-eighth of an inch clear of the bottom of the short
wick tube, from which the flame of the wick arises to prevent conduction of
heat into the vase. The aforesaid added tube (A) must be long enough to
reach down to within about three-eighths of an inch from the bottom of the
vase or chamber; though this tube the wick passes into the vase. All com-
munication between the outside of the lamp and the inside is thus precluded
except through the long tube (A) and a minute pin hole or pin holes (B. B,)
in the under surface of the cap (C), which pin holes are too small to allow
flame to pass through them.
What I claim as my Invention, and desire to secure by Letters Patent is.
the application of the long tube (A) through which the wiek passes to the
bottom of the vase, and the substitution for larger openings into the vase of a
minute pin hole or pin holes (B, B.) in the under surface of the cap (C),
whereby explosions are impossible.
In witness whereof, I, the said Edward Howard, have hereunto set
my hand and seal, this Twenty-first day of December, One thousand
eight hundred and sixty-six.
Signed, sealed, and delivered by the
above-named Edward Howard in
our presence,
CLAIR J. GRECE,
. of Redhill, Surrey,
Solicitor.
CHARLES CHEAL,
his Clerk.
EDWARD HOWARD. (L.S.)

page_text: The principle of this invention is
that no openings are left for the
flame to reach the vase.
The parts shewn in led Ink are
the new invention and those
constituting the lamp absolutely safe.
A.The Long tube named in the
accompanying specification through
which the wick passes to the bottom'
of the vase.
B.B.The minute pin, holes in the
under surface of the cap or
bottom of the burner.
C.C. The under surface of the cap.