AN IMPROVEMENT IN THE CHIMNIES AND GLASSES OF GAS AND OTHER LAMPS
Year: 1858

page_text: In the Matter of a Patent granted to Vincent Louis Vodoz, of the
Westminster Club, Albemarle Street, in the County of Mid-
dlesex, for his Invention of "AN IMPROVEMENT IN THE CHIMNIES AND
GLASSES OF GAS AND OTHER LAMPS," bearing date the 27th day of
May 1858.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed to be
entered by the said Vincent Louis Vordoz, pursuant to the Statute in
that case made and provided.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, VINCENT
LOUIS VODOZ, of. the Westminster Club, Albemarle Street, in the County of
Middlesex, send greeting.
WHEREAS Her present Majesty, by Her Letters Patent under the Great
Seal of the United Kingdom of Great Britain and Ireland, bearing date the
27th day of May, in the year of our Lord 1858, in the twenty-first year of
Her reign, did grant unto me, the said Vincent Louis Vodoz, the sole pri-
vilege to make, use, exercise, and vend, within the United Kingdom of Great

page_text: Britain and Ireland, the Channel Islands, and Isle of Man, my Invention for
"AN IMPROVEMENT IN THE CHIMNIES AND GLASSES OF GAS AND OTHER LAMPS,"
during the term of fourteen years thence next ensuing:
And whereas, in pursuance of a condition in the said Letters Patent
contained, I did, by an instrument in writing under my hand and seal (com-
monly called a Specification), particularly describe and ascertain the nature
of my said Invention, and in what manner the same was to be performed,
and caused the said instrument to be filed in the Great Seal Patent Office on
the 26th day of November, in the year of our Lord One thousand eight
hundred and fifty-eight, within the time and in the manner required by the
said condition in that behalf:
And whereas, since the filing of my said Specification, I have been advised
that the claim of Invention in the said Specification is too large, and may be
deemed to include some modes of performing the said Invention which do
not possess a sufficient amount of utility, and for this reason I am desirous
of making and filing such a Disclaimer and Memorandum of Alteration, as
herein-after mentioned.
NOW KNOW YE, that by and with the leave of Sir FitzRoy Kelly,
Knight, Her Majesty's Attorney-General, and for the reason aforesaid, I,
the said Vincent Louis Vodoz, do hereby disclaim the words near the beginning
of the said Specification, "by preference iron wire," and also the words near
the end of the said Specification, "for oil lamps fine iron wire gauze is used,
and by preference," and also the words near the end of the said Specification
"it is preferred to use."
"
AND FURTHER KNOW YE, that by and with the leave of the said Sir
FitzRoy Kelly, Knight, Her Majesty's Attorney-General, and for the reason
aforesaid, I, the said Vincent Louis Vodoz, do hereby alter the said Specification
in the manner herein-after shewn for the purpose of causing the said Specifica-
tion as so altered, to describe and claim only those parts of the said Specification
not intended to be. hereby disclaimed, that is to say, the use of a disc of fine
wire gauze in the manner described in the said Specification, as hereby altered,
constructed of platinum wire, iron or other wire electro-plated with silver, or
any other wire which will not be oxidised, corroded, or destroyed by being
used in the manner described. And I declare that the Specification as altered
will be as follows, that is to say :-
This Invention has for its object an improvement on the chimneys and
glasses of gas and other lamps. For this purpose a disc of fine wire gauze made

page_text: of platinum wire, iron or other wire electro-plated with silver, or any other
wire which will not be oxidised, corroded, or destroyed by being used in the
manner described, is raised at its edges so as to produce a ring or frame
suitable to fit on the upper part of a chimney or glass of a lamp. By this
application of wire gauze to the upper part of the chimney or glass of a lamp
the flame is greatly improved and the production of smoke prevented.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto
Figure 1 is a side view; Figure 2 is a vertical section; and Figure 3 is a
plan of an instrument of the form and construction which I prefer for carrying
out my Invention. This instrument is to be applied to the upper end of the
chimney or glass of a gas or other lamp, and it consists of a metal ring having
slits cut in it at a, a, so as to give it sufficient elasticity to pass readily on to
the end of a glass slightly larger externally than the interior of the metal ring.
6 is a cap of wire gauze which is raised to form by stamping. tools as is well
understood; the edge of the cap is turned outwards a short distance and fits
into the bead c formed in the metal ring; this bead is formed by placing the
ring in a cylinder into which it just fits, this cylinder is made in two parts,
and has a groove corresponding with the bead formed in it; a plunger or
mandril is then placed within the ring. This instrument is made in four or
other number of segments or parts arranged round a central wedge-formed
plug, and by forcing this plug into its place the segments or parts of the
plunger or mandril are expanded to the full size of the interior of the ring,
and the metal of the ring is forced into the groove in the cylinder, thus the
bead c is formed by removing the plug of the plunger or mandril and by opening
the cylinder the metal ring is released.
For oil lamps I prefer to use fine iron wire gauze electro-plated with silver,
and for gas burners fine wire gauze made of fine platinum wire; but I do not
confine myself to those metals, but claim the use of a disc of fine wire gauze
in manner above described, constructed of any metal which will not be
oxidised, corroded, or destroyed by being used in the manner described.
And I the said Vincent Louis Vodoz, do further declare that the above-
written Disclaimer and Memorandum of Alteration are not nor is either of
them nor any part thereof respectively intended to extend the exclusive right

page_text: granted by the said Letters Patent, and that these Presents shall not extend
the said exclusive right in any way whatsoever.
In witness whereof, I, the said Vincent Louis Vodoz, have hereunto
set my hand and seal, this Fourth day of May, in the year of
our Lord One thousand eight hundred and fifty-nine.
VINCENT LOUIS VODOZ. (LS.)
Signed, sealed, and delivered by the said
Vincent Louis Vodoz, in the presence of
F. H. GABRIEL,
Bury Street, St. James's, Gentleman.

page_text: Britain and Ireland, the Channel Islands, and Isle of Man, my Invention for
"AN IMPROVEMENT IN THE CHIMNIES AND GLASSES OF GAS AND OTHER LAMPS,"
during the term of fourteen years thence next ensuing:
And whereas, in pursuance of a condition in the said Letters Patent
contained, I did, by an instrument in writing under my hand and seal (com-
monly called a Specification), particularly describe and ascertain the nature
of said Invention, and in what manner the same was to be performed,
and caused the said instrument to be filed in the Great Seal Patent Office on
my
the 26th day of November, in the year of our Lord One thousand eight
hundred and fifty-eight, within the time and in the manner required by the
said condition in that behalf:
And whereas, since the filing of my said Specification, I have been advised
that the claim of Invention in the said Specification is too large, and may be
deemed to include some modes of performing the said Invention which do
not possess a sufficient amount of utility, and for this reason I am desirous
of making and filing such a Disclaimer and Memorandum of Alteration, as
herein-after mentioned.
NOW KNOW YE, that by and with the leave of Sir FitzRoy Kelly,
Knight, Her Majesty's Attorney-General, and for the reason aforesaid, I,
the said Vincent Louis Vodoz, do hereby disclaim the words near the beginning
of the said Specification, "by preference iron wire," and also the words near
the end of the said Specification, "for oil lamps fine iron wire gauze is used,
and by preference," and also the words near the end of the said Specification
"it is preferred to use."
AND FURTHER KNOW YE, that by and with the leave of the said Sir
FitzRoy Kelly, Knight, Her Majesty's Attorney-General, and for the reason
aforesaid, I, the said Vincent Louis Vodoz, do hereby alter the said Specification
in the manner herein-after shewn for the purpose of causing the said Specifica-
tion as so altered, to describe and claim only those parts of the said Specification
not intended to be hereby disclaimed, that is to say, the use of a disc of fine
wire gauze in the manner described in the said Specification, as hereby altered,
constructed of platinum wire, iron or other wire electro-plated with silver, or
any other wire which will not be oxidised, corroded, or destroyed by being
used in the manner described. And I declare that the Specification as altered
will be as follows, that is to say:-
This Invention has for its object an improvement.on the chimneys and
glasses of
s and other lamps. For this purpose a disc of fine wire gauze made
gas

page_text: of platinum wire, iron or other wire electro-plated with silver, or any other
wire which will not be oxidised; corroded, or destroyed by being used in the
manner described, is raised at its edges so as to produce a ring or frame
suitable to fit on the upper part of a chimney or glass of a lamp. By this
application of wire gauze to the upper part of the chimney or glass of a lamp
the flame is greatly improved and the production of smoke prevented.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto

page_text: granted by the said Letters Patent, and that these Presents shall not extend
the said exclusive right in any way.whatsoever.
In witness whereof, I, the said Vincent Louis Vodoz, have hereunto
set my hand and seal, this Fourth day of May, in the year of
our Lord One thousand eight hundred and fifty-nine.
VINCENT LOUIS VODOZ. (L.S.)
Signed, sealed, and delivered by the said
Vincent Louis Vodoz, in the presence of
F. H. GABRIEL,
. Bury Street, St. James's, Gentleman.
I hereby grant my fiat, giving leave to the above-mentioned Vincent Louis
Vodoz, to file in the Great Seal Patent Office, with the Specification to
which the same relates, the above-written Disclaimer and Memorandum of
Alteration.

page_text: LETTERS PATENT to Vincent Louis Vodoz, of the Westminster Club,
· Albemarle Street, in the County of Middlesex, for the Invention of "AN
IMPROVEMENT ON THE CHIMNEYS AND GLASSES OF GAS AND OTHER LAMPS."
Sealed the 5th November 1858, and dated the 27th May 1858.
PROVISIONAL SPECIFICATION left by the said Vincent Louis Vodoz
at the Office of the Commissioners of Patents, with his Petition, on
the 27th May 1858.
I, VINCENT LOUIS VODOZ, of the Westminster Club, Albemarle Street, in
the County of Middlesex, do hereby declare the nature of the Invention for.
"AN IMPROVEMENT ON THE CHIMNEYS AND GLASSES OF GAS AND OTHER LAMPS," to
be as follows:-
This Invention has for its object an improvement on the chimneys and
glasses of gas and other lamps. For this purpose a disc of fine wire gauze, by
preference iron wire, is raised at its edges so as to produce a ring or frame.
suitable to fit on the upper part of a chimney. or glass of a lamp.. By this,
application of wire gauze to the upper part of the chimney or glass of a lamp,
the flame is greatly improved, and the production, of smoke prevented..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Vincent Louis Vodoz in the Great Seal Patent Office on
the 26th November 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, VINCENT
LOUIS VODOZ, of the Westminster Club, Albemarle Street, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of May, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign did, for Herself, Her heirs and successors, give and grant unto me, the
said Vincent Louis Vodoz, Her special licence that I, the said Vincent Louis
Vodoz, my executors, administrators, and assigns, or such others as I, the said
Vincent Louis Vodoz, 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 IMPROVEMENT
IN THE CHIMNEYS AND GLASSES OF GAS AND OTHER LAMPS," upon the condition
(amongst others) that I, the said Vincent Louis Vodoz, my executors 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 Vincent Louis Vodoz, do hereby declare
the nature of the 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 thereof, that is to say :-
This Invention has for its object an improvement in the chimneys and
glasses of gas and other lamps. For this purpose a disc of fine wire gauze,
by preference iron wire, is raised at its edges so as to produce a ring or frame
suitable to fit on the upper part of a chimney or glass of a lamp. By this
application of wire gauze to the upper part of the chimney or glass of a lamp,
the flame is greatly improved, and the production of smoke prevented.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto
annexed.

page_text: DESCRIPTION OF THE DRAWING.
Figure 1 is a side view, Figure 2 is a vertical section, and Figure 3 is a
plan of an instrument of the form and construction which I prefer for carrying
out my Invention. This instrument is to be applied to the upper end of the
chimney or glass of a gas or other lamp, and it consists of a metal ring having
slits cut in it at a, a, so as to give it sufficient elasticity to pass readily on to
the end of a glass slightly larger externally than the interior of the metal ring.
6 is a cap of wire gauze which is raised to form by stamping tools as is well
understood; the edge, of the cap is turned outwards a short distance, and fits
into the bead c, formed in the metal ring; this bead is formed by placing the
ring in a cylinder into which it just fits, this cylinder is made in two parts, and
has a groove corresponding with the bead formed in it; a plunger or mandril
is then placed within the ring. This instrument is made in four or other
number of segments or parts arranged round a central wedge-formed plug,
and by forcing this plug into its place, the segments or parts of the plunger or
mandril are expanded to the full size of the interior of the ring, and the metal
of the ring is forced into the groove in the cylinder, thus the bead c is formed
by removing the plug of the plunger or mandril, and by opening the cylinder
the metal ring is released.
For oil lamps fine iron wire gauze is used, and by preference electro-plated
with silver, and for gas burners it is preferred to use fine wire gauze made of
fine platinum wire.
In witness whereof, I, the said Vincent Louis Vodoz have hereunto
set my hand and seal, this Tenth day of November, in the year of
our Lord One thousand eight hundred and fifty-eight.
Witness,
JNO. ALCOCK.
V. L. VODOZ. (L.S.)