IMPROVEMENTS IN VALVES FOR REGULATING THE SUPPLY OF GAS AND IN OTHER FITTINGS CONNECTED WITH GAS BURNERS
Year: 1874

page_text: PROVISIONAL SPECIFICATION left by Philip Jacob Lack at the Office
of the Commissioners of Patents, with his Petition, on the 12th
June 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.
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
bore forming a direct passage to the burner, it is closed by a disc which
would completely cut off the gas from the burner, but for a small

page_text: 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 round 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 perforation 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 provided 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 further
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 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 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 globe
from the gallery by applying the thumb or finger with a slight pressure
to the said long arm of the lever the hook or claw of the same is

page_text: withdrawn 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 their 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.