Year: 1897

page_text: We, EDWARD HEYMANN and FRANK WILLIAM HBYMANN, both of 689 Parker Street,
Boston, Massachusetts, United States of America, Electricians, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention relates to gas burners of that class automatically operated by the
withdrawal of the heat to close a valve controlling the outflow of gas from the burner,
and has for its object to provide a simple, efficient and reliable burner, which can be
made and sold at a low cost to the user.
In accordance with this invention, the burner is provided with a chamber in direct
communication with the gas supply pipe, and with an outlot pipe or passage adapted
to communicate with the said chamber through a suitable port, which is controlled by
a valve automatically operated by a thermostat, preferably of a construction as will be
described, and which, when heated, removes the valve froin its sent to permit the gas
in the chamber referred to, to flow to the tip or burner proper; and which, when not
heated, seats the said valve and cuts off the supply of gus from the said tip, the valve
when seated being acted upon by the prossure in the supply pipe to more effectually
close the valve. The thermostat, referred to, is preferably made of aluminium and
steel strips secured together by rivets and fastened at ono end to the burner tip and.
having its other end in engagement with the valve as will be described.
The
thermostatic strip will preferably be protected from injury by a covering as will be
described.
These and other features of this invention will be pointed out in the claims at the
end of this specification.
Fig. 1 is an elevation of a sufficient portion of a gas outlet pipe provided with a
burner embodying this invention to enable it to be understood.
Fig. 2, an end elevation of the burner shown in Fig. 1 looking toward the right.
Fig. 3, a vertical longitudinal section with parts in elevation of the burner shown
in Figs. 1 and 2, the section being on an enlarged scale and taken on the line 3, 3,
Fig. 2.
Fig. 4, a plan view of the thermostatic strip, and
Fig. 5. a detail in section of the strip shown in Fig. 4, the section being taken on
the line 5, 5, with the rivets in elevation.
Referring to the drawings, A represents a gas outlet pipa such as now commonly
found in buildings and like places, and to which is detachably secured the gas burner
forming the subject of this invention. The gas burner referred to, consists essentially
of a casing or pipe a provided at its lower end, as horoin shown, with screw-throads to
engage the screw-threaded end a 1 of the gas supply pipe A, the casing a being divided or
separated to form the chambers a 2 a 3, by an intermediate solid portion or partition
wall, through which is extended a gas-conducting passage a4, which effects direct
communication between the chambers a 2 a 3 for a purpose as will be described.
The chamber a 8 is designed in practice to be closed by a removable cap a 5, which
may be of any suitable construction. The casing a has extending from it an arm b,
which may be secured to or form part of the casing and which constitutes the burner

page_text: tip, the said arm being provided with a gas outlet passage 61 communicating with the
atmosphere through a slit 2 in the arm or tip h. The gas outlet passage b 1 is adapted
to communicate with the chamber a 3 through a passage b4 in the solid portion or
divisional wall of the casing a, the passage 64 communicating with the chamber a 3
through a port or opening 65, which, in accordance with this invention, is controlled
by a valve 6 having a stem 67 extended through the passage b4, and of reduced
diameter so as to permit of the flow of gas from the chamber a 3 through the passage 64
into the passage 1, when the valve 66 is lifted to uncover the port 65 as represented
in Fig. 3. The valve stem 67 is extended through the bottom of the arm or tip b and
into an open space 68 formed in the casing; the lower portion of the stem 67 fitting
its opening in the bottom of the tip or arm b, gas tight, and being connected to u
thermostatic strip B, which is preferably composed of two layers or pieces c c 1 of steel
and aluminium united by metal rivets c2, the said strip B being removably secured to
the underside of the arni bat one end thereof, by a set scrow c & as shown in Fig. 3,
and having its opposite end extended into a suitable slot c4 in the lower end of the
valve stem 7.
The arm or tip b is preferably made substantially flat on its underside, and the
thermostatic strip B may be protected against injury by a shield or covering c 5, which
may be made of wire gauze or other suitable material, and which is adapted to be
attached to the tip or burner by providing the latter on its sides with grooves, into
which extend the edges of the shield c5 as clearly shown in Fig. 2. The thermostatic
strip B is made, so that when expanded by heat, it will elongate and curl upward in
the present instance, thereby moving the valve stem 67 upward and consequently
raising the valve 6 from its seat, so as to uncovor the port & 5. In the normal
condition of the buruor, the valvo 6 is seated and is held upon its sent by the
contraction of the thermostatic strip assisted by gravity and the gas pressure in the
chamber a 3; for by an inspection of Fig. 8, it will be seen that the chamber a 3
is in direct communication with the gas supply pipe A, by the passage a 4 and the
chamber a 2.
It will thus be seen that the valve 66 may constitute the sole valve for the gas outlet
pipe A, whereby the usual cock or valve in the gas supply pipe A may be dispensed with,
if desired. When it is desired to light the gas, the operator holds a lighted match or
other flame under the tip b, and the heat from the said Bame expands the thermostatic
strip B in a few seconds, which oxpansion lifts the valve 6 from its seat and permits
the gas to flow out through the slit 62, where it is ignited, and as soon as ignited, tho
metal tip is heated sufficiently to maintain the valve 66 open, by the heat conducted
to the strip B from the metal tip b. If, for any reason, the gas flame should be
extinguished, as for instance, by the pressure in the gas main falling below p
predetermined point, the thermostatic strip B becomes cooled substantially in an
instant, and responds to this change, and consequently contracts and seats the valve b6,
which latter, as above explained, closes the port 5; and it will be noticed that the
scating of the valve 66 by the contraction of the thermostatic strip is assisted by the
gas pressure in the gas chamber a 3 and also by gravity, so that if the iberinostatic
strip should be accidentally broken or become deranged in any manner, the valvo & 6
would be apt to be seated by gravity assisted by tho gus pressure in the chamber a 3,
which construction imparts to the burner an additional feature of safety in case of
accident.
The thermostat B is preferably secured to the underside of the arm or tip b, as it is
thereby removed from the flame and does not interfere with the light emitted by
the same.
The chamber a 2 may and proforably will contain a filter for the gus, to prevent the
pasange of oils, tarry matters or carbon to the burner tip, which substances might
deposit on the valve seat and provent the valve from closing gas tight. The fifter
referred to, may be of any suitable material and is represented as cotton or other
fibrous material, confined in the chamber a 2 between perforated disks m 1 m 2, as
shown in Fig. 3. The filter being located in the chamber a 2 can be readily removed

page_text: whon it is desired to replace it with a new or clean one, by removing the casing a
from the supply pipe A after closing the latter by the usual stop cock or valve,.
not shown.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
:-
1. An automatically operated gas burner comprising a casing adapted to.
communicate with a gas supply pipe and provided with a gas chamber in direct
communication with the said gas supply pipe, a tip or arm extended at an angle
from the said casing and provided with a gas outlet passage and with a gas
ontlet communicating with the atmosphere, a port or passage adapted to connect
the gas chamber of the casing with the gus outlet passage of the tip or arm, a
valve controlling said port or passage and normally seated by the gas pressure in
said casing, and a thermostatic strip secured at one end to tho said tip or arm
and operatively connected at its other end to the said valve, substantially as.
described.
2. An automatically operated gas burner comprising a casing adapted to.
cominunicate with a gas supply pipe, an arm or tip extended from said casing
at an angle theroto and provided with a gas outlet passage communicating with
the atmosphere, a valve controlling the passage of gas from said casing to said
tip or arm, and a thermostatic strip connected at one end to the arm below the
gas outlet thereof, and at its other end to said valve to operate, substantially as.
described.
3. An automatically operated gas burnor comprising a casing adapted to
communicate with a gas supply pipe, an arm or tip extended from said casing at
an angle thereto and provided with a gas passage adapted to communicate with
the said casing, a valve controlling the passage of gas from suid casing to said.
tip or arm, and a thermostatic strip connected to the underside of the tip or
arm and having its other end connected to the said valve, substantially as
described.
4. An automatically operated gas burner, comprising the casing a provided
with the chambers a 2 a 3 and the connecting passage a 4, the arm or tip b provided
with a gas outlet passage, the gas passage 64 connecting the said gas outlet
passage with the chamber a 3, n valve movable in the passage 4, and the
thermostatic strip B secured at one end to the tip or arm baud at its other end to.
the said valve, substantially as described.
5. An automatically operated gas burner comprising the casing a provided with
the chambers a 2 a 3 and the connecting passage a 4, the arın or tip 6 provided
with a gas outlet passage, the gas passage 4 connecting the said gas outlet
passage with the chamber a 3, a valve movable in the passago 4, and the
thermostatic strip B secured at one end to the tip or arm b and at its other end
to the said valve, and a removable covering for the thermostat B secured to the
said tip or arm, substantially as described.
6. An automatically operated gas burner comprising a casing provided with a
partition wall forming chambers on opposite sides thereof, a passage connecting
said chambers, a second gas passage in the said partition wall adapted to.
communicate with only ono of said chambers, a valve to close said second passage,
an arm or tip extended from the casing at an angle thereto and provided with
a gas passage communicating with the valvo-controlled passage in the partition
wall, a gas outlet in the said arm or tip connecting the passage therein with the
atmosphere, and a thermostatic strip secured at one end to the tip away from
the gas outlet therein and having its other end connected to said valve,
substantially as and for the purpose specified.
7. An automatically operated gas burner comprising a casing adapted to
communicate with a gus supply pipe and provided with a thermostatically operated

page_text: valve and with a filter for the gas located in the casing to purify the gas before
it reaches the said valve, substantially as described.
Dated the 2nd day of February 1807
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicants.