IMPROVEMENTS IN VALVES FOR REGULATING THE SUPPLY OF GAS, AND IN OTHER FITTINGS CON- NECTED WITH GAS BURNERS
Year: 1874

page_text: LETTERS PATENT to Philip Jacob Lack, of Westmoreland Place, in
the County of Middlesex, for the Invention of "IMPROVEMENTS IN
VALVES FOR REGULATING THE SUPPLY OF GAS, AND IN OTHER FITTINGS CON-
NECTED WITH GAS BURNERS."
Sealed the 16th April 1875, and dated the 20th October 1874.
PROVISIONAL SPECIFICATION left by the said Philip Jacob Lack at
the Office of the Commissioners of Patents, with his Petition, on
the 20th October 1874.
I, PHILIP JACOB LACK, of Westmoreland Place, in the County of
Middlesex, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN VALVES FOR REGULATING THE SUPPLY OF GAS, AND IN OTHER
FITTINGS CONNECTED WITH GAS BURNERS," to be as follows:
My Invention has for its object the construction of fittings to be
applied to and used in connection with gas burners to render the same
more economical with regard to the consumption of gas, and more
generally efficient and convenient.

page_text: The said Invention relates, first, to a valve for regulating the quantity
of gas admitted to the burner. This valve is formed by a peculiar con-
struction of the burner tube. This tube is provided with a screw thread,
whereby it is attached in the ordinary manner to a pipe or arm of a
chandelier or bracket, but instead of having a plain straight core forming
a direct passage to the burner, it is closed by a disc, which would com-
pletely cut off the gas from the burner but for a small or fine perforation
or a number of such perforations through it. Above this perforated disc
the said tube is formed with a socket or chamber, wherein I fit a small
nozzle, in which the burner tip is screwed, and which also carries the
gallery for supporting the globe or chimney. This nozzle is fitted to
turn partially around in the said tube, and its lower end is also closed
with a perforated disc. The perforations in the two discs must not be
in the centre of the same, so that when the said discs are fitted together
by turning the nozzle the perforations in the disc of the latter can be
brought opposite or in line with those of the other disc, and then there
will be a free passage of the gas to the burner; or the nozzle can be
adjusted to bring the solid part of its disc over the holes in the other
disc, and then the gas will be cut off; or the apertures of the nozzle-may
be so adjusted to those of the tube as to cut off the gas only partially, so
that the gas will be consumed very slowly at the burner. A stop is pro-
vided to prevent the turning of the nozzle too far round in its socket.
The turning or adjustment of this regulator or regulating valve is most
conveniently effected by means of the gallery.
I modify this part of my Invention to adapt it to the construction of
what are termed sunlight burners as follows:-I make the burner of two
rings or annular portions. The lower ring is connected to the supply
pipe or tube, and the upper ring is attached to the lower ring by a
central screw or by other means which will permit the adjustment of
the upper upon the lower ring. The gas issues from the circular slot or
division between the two rings, and by adjusting them nearer together or
farther apart the size of the flame may be regulated as desired.
Another part of my Invention relates to a novel contrivance for
securing the glass globes or chimneys upon the galleries of the burners.
For this purpose I use, instead of the ordinary screws, a small spring
lever placed at the outer extremity of one or more of the arms of the
gallery; or when the gallery is constructed with a ring, at any part or
parts of the said ring. The short arm of this lever forms a hook or claw

page_text: of the proper shape to fit over the flange or rim of the globe or chimney,
and projects up into the proper position to hold the same when at rest.
The long arm of the said lever projects inward under the gallery, and is
pressed down by a spring; but when it is desired to remove the globo
from the gallery, by applying the thumb or finger with a slight pressure
to tho said long arm of the lever the hook or claw of the same is with-
drawn from the flange or rim of the globe, leaving the same free to be
removed. I may use a flat or spiral spring to act on the said lever, and
may secure the same to any convenient part of the gallery. The gallery
may be provided with one of these spring catches or levers, or with two
or more of the same, and the pivoted lever or catch may have a weight
instead of a spring, or may be used without either.
Another part of my said Invention relates to the means for supporting
a shield or disc for arresting or confining the smoke of the burner. I
prefer to make the said disc of opal glass fitted within a metal rim, and
to this rim I attach standards or legs formed with spring clips at the.
lower ends to clasp the upper edge of the globe or chimney. By
attaching the said standards or legs to the said disc, and providing them
with clips to fit the edge of the globe, I prevent the displacement by
vibration or otherwise to which these fittings are liable when the smoke
confining discs are secured by detached or loose clips, or other devices
heretofore employed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Philip Jacob Lack in the Great Seal Patent Office
on the 19th April 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PHILIP
JACOB LACK, of Westmoreland Place, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of October, in.the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Philip Jacob Lack, Her special
licence that I, the said Philip Jacob Lack, my executors, administrators,
and assigus, or such others as I, the said Philip Jacob Lack, my exe-

page_text: "
cutors, 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 "IMPROVEMENTS &
IN VALVES FOR REGULATING THE SUPPLY OF GAS, AND IN OTHER FITTINGS CON-
NECTED WITH GAS BURNERS," upon the condition (amongst others) that I,
the said Philip Jacob Lack, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
scals, should particularly describe and ascertain the nature of the said 1
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 Philip Jacob Lack, do hereby declare 1
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the accompanying
Drawing forming a part of this Specification:--
My Invention has for its object the construction of fittings to be 2
applied to and used in connection with gas burners to render the same
more economical with regard to the consumption of gas, and more
generally efficient and convenient.

page_text: struction of the burner tube a, as shewn in Figures 2, 3, 4. This tube is
provided with a screw thread at 6, whereby it is attached in the ordinary
manner to a pipe or arm of a chandelier or bracket, but instead of having
a plain straight bore forming a direct passage to the burner tip, it is
closed at its upper end by a disc c, which would completely cut off the
gas from the burner tip d but for a small or fine perforation or two or
more of such perforations through it, as at e. Above this perforated disc
the said tube is formed with a socket or chamber, wherein I fit a small
nozzle f, in which the burner tip is screwed, and which also carries the
gallery for supporting the globe h, as shewn in Figure 1. This nozzle f
is fitted to turn partially around in the said tube a, and its lower end is
also closed with a disc i, which is fitted in close contact with the disc or
end c, and is perforated with a corresponding number of holes j. Tho
upper part is secured in the lower part a of the burner by closing
down the edge of the socket upon a small flange or rim formed on the
said upper part, as shewn in Figure 2. The perforations in the two
discs c, i, must not be in the centre of the same, so that when the said
discs are fitted and secured together as above described the turning of
the nozzle will bring the perforations in the disc i of the latter opposite
or in line with those of the other disc c, and then there will be a free
passage of the gas to the burner tip. On the other hand by adjusting
the nozzle to bring the solid part of its disc over the holes in the other
disc the gas will be cut off; or the perforations of the nozzle may be so
adjusted to those of the tube as to cut off the gas only partially, so that
the gas will be consumed very slowly at the burner tip. A stop is pro-
vided to prevent the turning of the nozzle too far round in its socket.
I prefer that this stop should be a pin fixed in one part and projecting
into a slot m in the other part of the burner, as shewn in Figures 3
and 4. From the above description it will be clear that by the novel
formation of the burner in two parts, communicating with each other
only through the aforesaid small holes or perforations capable of adjust-
ment with regard to each other, I provide a simple and efficient valve
whereby the supply of gas to the burner may be regulated with the
utmost precision. The turning or adjustment of this regulator or
regulating valve is most conveniently effected by means of the gallery.
I modify this part of my Invention to adapt it to the construction of
what are termed sunlight burners as follows:-I make the burner of two
rings or annular portions a³, a'. The lower ring a³ is connected to the
-

page_text: supply pipe or tube, and the upper ring a' is attached to the lower ring
by a central screw or by other means which will permit the adjustment
of the upper upon the lower ring. The gas issues from the circular slit
or division a between the two rings, and by adjusting them nearer
together or farther apart the size of the flame may be regulated as
desired. It is obvious that this slit or division may be made in either
the outside or the inside of the burner, or in both the outside and insido
of the same.
Another part of my Invention relates to a novel contrivance for
securing the glass globes or chimneys upon the galleries of the burners.
For this purpose I use, instead of the ordinary screws, a small spring
lever n, pivoted at the outer extremity of one or more of the arms of the
gallery g, as shown in Figure 1; or when the gallery is constructed in
the form of a ring, at any part or parts of the said ring. The short
arm n' of this lover forms a hook or claw of the proper shape to fit over
the flange or rim of the globe h, or a flange on a chimney if the latter
is used, and projects up into the proper position to hold the same when.
at rest. The long arm n² of the said lever projects inwardly under the
gallery g, and is pressed down by a spring o; but when it is desired to
remove the globe / from the gallery g, by applying the thumb or finger
with a slight pressure to the said long arm of the lover the hook or
claw n¹ of the same is withdrawn from the flange or rim of the globe or
chimney, leaving the same free to be removed. I may use a flat or
spiral spring to act on the said lever, and may secure the same to any
convenient part of the gallery. The gallery g may be provided with one
of these spring catches or levers, or with two or more of the same, and
the pivoted lever or catch may have a weight instead of a spring, or may
be used without either.
Another part of my said Invention relates to the means for supporting
a shield or cap p for arresting or confining the smoke of the burner. I
prefer to make the said cap of opal glass fitted within a metal rim q and
to this rim I attach standards or legs », formed with spring clips s at
their lower ends to clasp the upper edge of the globe or chimney, as
shewn in Figure 1. By attaching the said standards or legs to the
said disc, and providing them with clips to fit the edge of the globe, I
prevent the displacement by vibration or otherwise to which these fittings
are liable when the smoke confining covers are secured by detached or
loose clips, or other devices heretofore employed.

page_text: Having thus fully described my said Invention, and the manner of per-
forming the same, I wish it understood that I claim,―
First. The valve for regulating the passage or supply of gas through
r to a gas burner formed by the constructing of the burner in two parts
vith perforated ends or discs fitted and secured adjustably upon each
other, and operating as herein set forth.
) Witness,
JAS. EDWARDS,
8, Southampton Buildings,
London.
P. J. LACK. (L.S.)