AN IMPROVED PORTABLE SELF GAS-GENERATING LAMP
Year: 1858

page_text: LETTERS PATENT to John Davies, of Liverpool, in the County of Lan-
caster, Provision Merchant, for the Invention of "AN IMPROVED PORTABLE
SELF GAS-GENERATING LAMP." -A communication from James Lawrence
Butler, resident at Brooklyn, in the State of New York, one of the
United States of America
Sealed the 24th June 1859, and dated the 27th December 1858.
PROVISIONAL SPECIFICATION left by the said John Davies at the
Office of the Commissiouers of Patents, with his Petition, on the
27th December 1858...
I, JOHN DAVIES, of Liverpool, in the County of Lancaster, Provision
Merchant, do hereby declare the nature of the said Invention for "AM
IMPROVED PORTABLE SELF GAS-GENERATING LAMP," to be as follows (that is to
say) :-
This Invention consists in the employment of a heating or vaporizing tube
and retort charged with asbestos or any analogous material and carbonaceous
fluid, ormond oil, or other hydro-carbons passing over the flame of a burner,
supplied with vapor generated within the tube or retort into which the fluid
ormond oil, or other hydro-carbons are charged by pressure.
It also consists in providing the tube and retort so charged with a cover or
cap to retain the heat around its upper surface. It also consists in such an
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page_text: arrangement of the several parts, viz., the syphon-shaped vaporizing tube, and
retort or chamber over the burner, with its charging material, and cover a con-
ducting tube and burner and elevated reservoir and valve, that the fluid,
ormoud oil, or other hydro-carbons from the reservoir is supplied to the heating
part of the vaporizing tube by pressure, and the entire vaporization and
burning of its material effected without a residium.
In the Drawings, N represents an elevated reservoir made of tin, copper,
brass, or other material to contain any desirable quantity of burning fluid,
ormond oil, or other hydro-carbons, and connected with the stop-cock Cby the
pipe O. The stop-cock Cis made like the common globe valve, except that
the spindle and seat in the diaphragm are made nearly straight to nicely
regulate the flow of the fluid, ormond oil, or other hydro-carbons.
To the stop-cock C is connected the syphon-shaped vaporizing tube B, J,
having its longer branch B packed or filled with asbestos or other analogous
material, and its shorter branch J connected at its lower end with a burner
K. A is a chamber connected with the upper part or crown of the tube B, J,
and so placed over the flame of the burner K as to present a heating surface
for the perfect vaporizing and drying of the liquid material which is forced
through the stop-cock C, and the packing in the long branch B to the heated
portion of the tube and the chamber A. To the top of the chamber or retortA
attach an arch or heat retainer H. The hydro-carbonaceous matter which is,
thus changed into perfect vapor is conducted to the chamber or burner K,
from which it issues to supply the flame.
The chamber A may be made of any form best calculated to receive heat
from the flame, it being necessary to the perfect vaporization of the fluid,
ormond oil, or other hydro-carbons, that its heat should be nearly equal to that
of redness.
The packing of asbestos or other analogous material in the tube is in order
to more perfectly equalize the flow of the liquid which is forced through the
packing by heat or pressure from the fountain N.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Davies in the Great Seal Patent Office on the 27th.
June 189.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
DAVIES, of Liverpool, in the County of Lancaster, Provision Merchant, send
**cetur.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of December, in the year of our
LordOne thousand eight hundred andfifty-eight,in the twenty-second year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John Davies, Her special licence that. I, the said John Davies, my
executors, administrators, and assigns, or such others as I, the said Johu
Davies, 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, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVED PORTABLE SELF
GAS-GENERATING LAMP," the same having been communicated to me by James
Lawrence Butler, resident at Brooklin, in the State of New York, one of the
United States of America, upon the condition (amongst others) that I, the
said John Davies, my executors or administrators, by an instrument inwriting
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 John Davies, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following state-
ment, reference being had to the accompanying Drawings, and letters and
figures marked thereon, to be as follows (that is to say)
-
This Invention relates to improved hydro-carbon vapour burners, and
consists in the employment of a heating or vaporising tube and retort charged
with asbestos or any analogous material and carbonaceous fluid, ormond oil,
or other hydro-carbons, passing over the flame of a burner supplied with
vapour generated within the tube or retort, into which the fluid, ormond oil,
or other hydro-carbons are charged by pressure.
It also consists in providing the tube and retort so charged with a cover or
cap to retain the heat around its upper surface. It also consists in such an
arrangement of the several parts, viz., the syphon-shaped vaporizing tube and
retort or chamber over the burner, with its charging material and cover, a,
conducting tube and burner, and elevated reservoir and valve, that the fluid,
ormond oil,orother hydro-carbonsfrom the reservoir is supplied to the heating
part of the vaporizing tube by pressure, and the entire vaporization and
burning of its material effected without a residuum.

page_text: In the Drawings, N represents an elevated reservoir made of tin, copper,
brass, or other suitable material, to contain any desirable quantity of burning
fluid, ormond oil, or other hydro-carbons, and connected with the stop-cock
C by the pipe O. The stop-cock C is made like the common globe
valve, except that the spindle and seat in the diaphragm are made nearly
straight to nicely regulate the flow of the fluid, ormond oil, or other hydro-
carbons.
To the stop-cock C is connected the syphon-shaped vaporizing tube B, J,
having its longer branch B packed or filled with asbestos or other analogous
material, and its shorter branch J connected at its lower end with a burner K.
A is a chamber connected with the upper part or crown of the tube B, J, and
so placed over the flame of the burner K as to present a heating surface for
the perfect vaporizing and drying of the liquid material which is forced
through the stop-cock C,and the packing in the long branch B to the heated
portion of the tube and the chamber A. To the top of the chamber or retort
A attach an arch or heat retainer H. The hydro-carbonaceous matter
which is thus changed into perfect vapour is conducted to the chamber or
burner K, from which it issues to supply the flame.
The chamber A may be made of any form best calculated to receive heat
from the flame, it being necessary to the perfect vaporization of the fluid,
ormond oil, or other hydro carbons that the heat should be nearly equal to
that of redness.
The packing of asbestos or other analogous material in the tube is in order
to more perfectly equalise the flow of the liquid, which is forced through the
packing by heat or pressure from the fountain N.
Having now fully described and ascertained the nature of the said
Invention, and how I believe the same may be best put into practice, what I
claim as new is,-
First, the use of the heating and vaporizing tube charged with asbestos or
other analogous material and fluid, substantially as herein-before described,
and for the purpose set forth.
Secondly, constructing a vaporizing tube B and retort A in such a manner
as to convey the material over the flame of a burner, substantially as
described.
Thirdly, combining the cap or heat retainer H with a vaporizing tube and
retort or chamber, as described, when so arranged over the flame as to operate
in the manner set forth.
Fourthly, and lastly, I claim the combination of the heat retainer Hand
vaporizing tube charged,substantiallyas described, with the elevated reservoir,

page_text: the whole arranged and operating with respect to the valve Cand burner K,
substantially and in the manner herein-before set forth.
In witness whereof, I, the said John Davies, have hereunto set my
hand and affixed my seal, this Twenty-fifth day of June, in the year of
our Lord One thousand eight hundred and fifty-nine.
Witness,
WILLIAM WALKER,
of 44, Castle Street, Liverpool.