Improvements in Electric Lighting Attachments for Gas Burners.
Year: 1891

page_text: Date of Application, 30th Nov., 1891
Complete Specification Left, 29th July, 1892-Accepted, 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Electric Lighting Attachments for Gas Burners.
We DAVID JAMES QUINN of 122 Chestnut Street Brookline, Norfolk County
and PAUL WALTER HOFFMANN of 4 Shawmut Street Boston, Suffolk County,
both in the State of Massachusetts one of the United States of America,
Machinists and Electricians do hereby declare the nature of this invention to be
as follows:-
This invention relates to electric lighting attachments for gas burners, and has
for its principal object to improve the same, whereby a greater movement of the
gas-plug or valve may be produced in order to avoid as far as possible all danger
of leakage.
Another object of the invention is-to provide improved mechanism for actuating
the spark-striking arm.
In accordance with this invention, the gas burner is provided with a rotatable
plug or valve to control the passage of gas to the burner, said plug or valve,
having fastened upon its projecting end a spark-striking arm, adapted to cooperate
with a fixed insulated contact on the burner adjacent to the tip to produce a spark
to ignite the gas, when the valve is turned to cause movement of the spark-striking
arm with relation to the said fixed contact.
The spark-striking arm is provided with two ears or projections, with which
co-operate one or another of two projections on a vertically-movable frame, which,
when drawn down by a suitable pull against the action of a spring, will act alter-
nately on one and then on the other of the cars on the spark-striking arm, to
throw the same first in one and then in the other direction to move the valve to
open and close the gas passage, and also to strike a spark as described.
Dated the 30th day of November 1891.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.
COMPLETE
SPECIFICATION.
Improvements in Electric Lighting Attachments for Gas Burners.
We DAVID JAMES QUINN of 122 Chestnut Street, Brookline, Norfolk County,
and PAUL WALTER HOFFMANN of 4 Shawmut Street, Boston, Suffolk County,
both in the State of Massachusetts, one of the United States of America,
Machinists and Electricians do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to electric lighting attachments for gas burners, and has
for its principal object to improve the same whereby a greater movement of the
gas plug may be produced in order to avoid as far as possible all danger of
leakage.
Another object of this invention is to provide improved mechanism for actuating
the spark striking arm.
Fig. 1, represents in elevation a gas lighting attachment embodying this
invention.
Fig. 2, a similar view with the parts in different position.
Fig. 3, a side elevation of the device shown in Figs. 1 and 2.
Fig. 4, a sectional detail of the valve, and
Fig. 5, illustrates a modified construction embodying this invention.

page_text: Referring to the drawings A represents a gas burner of usual form and con-
struction, it having an interior gas passage a* controlled by a suitable plug or other
valve a, a passage a', which extends laterally through said valve, registering with
the passage a when-the valve is in one position to permit gas to rise through the
passage a to the tip or burner a², such passage being cut off by rotation of the
said valve into its other position as represented by dotted lines.
In the construction selected to illustrate this invention the valve a, projects
through the body of the burner A, as represented, and has fixed to its outer end the
spark arm carrying the coiled spring the extended end of which is adapted to
cooperate with the fixed contact c, on the ring c clamped about and insulated
from the burner A, to strike a spark when the said spark arm is vibrated.as.will
be fully hereinafter described.
The spark arm at its pivotal center is provided with two diametrically opposite
cars having their ends turned in at right angles to abut against the face of
a plate, also fast on the projecting end of the valve a.
The plate is separated from the arm b, by a space sufficient to admit the sliding
frame e, oval in shape, and spanning the end of the valve as shown, said frame at
its opposite sides having projections e, e, adapted to cooperate with the inturned
ears on the spark arm, to move the latter when the frame is drawn down by
a suitable pull ƒ.
The frame e has a substantially linear motion and is returned to and normally
heid in its uppermost position by a pair of springs h, arranged at opposite sides of
the valve a, said springs at their upper ends being attached to the fixed bracket m,
and at their lower ends to the inturned arms e³ on the frame
and said arms may
be extended to straddle the neck of the burner A. so as to guide the frame in its
vertical movements.
In practice the fixed contact c on the ring will be connected in usual manner
with one pole of a battery or other generator of electricity, while the other pole
of the battery will be connected with the gas pipe or burner A, and its arm b; and
assuming the parts to be in the positions represented in the drawings, Fig. 1, with
the valve a closing the gas passage a*, the operation of the device may be described
as follows:-
The frame e will be drawn down by means of the pull, causing the projection el
thereon to catch on the inturned car 3 on the arm, and turn the latter to rotate
the valve into its position Fig. 2, to permit the gas to rise through the passage a*
to the tip a², and as the arm is moved from its position Fig. 1 to its position
Fig. 2, the extended end of the spring will wipe over the contact c, to close the
electric circuit, and as the said end 62, springs away from the fixed contact after
closing the circuit, it will strike a spark to ignite the gas rising through
the tip
1
The pull being released, the springs, will return the frame e to its normal
elevated position, as represented in dotted lines Fig. 2, the. central opening in the
frame where it spans the valve a being of sufficient size, to permit the frame to
move laterally to one side as it is restored to its normal position in order that it
may pass up between the ears 3*.
The frame having been returned to its normal position as in dotted lines Fig. 2,
the flame may be extinguished by again drawing down the frame e, which will
cause the other projection e² to catch on the inturned car or the arm b, to rotate
the valve a, in the opposite direction back to its former position to close the
passage a* and extinguish the flame, such movement of the valve carrying the arm b
back to its former position Fig. 1.
Drawing down the frame e thus operates to alternately ignite and extinguish the
gas, and the range of movement of the valve a is so great that there is practically
no possibility of leakage.
In Fig. 5, the actuating arm or member » is pivoted instead of made sliding, and
an achor or pawl n' shown mostly by dotted lines connected thereto has the two
engaging ears or projections n², n, which as the actuating member is turned,

page_text: successively engage the pins on the valve or plug to rotate the same and turn on
and cut off the gas.
The spark arm in this construction is formed upon and movable with the
actuating member.
This invention is not limited to the exact arrangement and construction herein
shown and described, for the same may be varied without departing from the spirit
and scope of this invention.
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. A gas burner, a rotatable valve therefor having two projections, an actuating
member adapted on successive movements to engage first one and then the other of
said projections and thereby rotate the valve first in one and then in the other
direction, a spark arm moved by said actuating member, and a fixed cooperating.
contact therefor, substantially as described.
2. In a gas burner, a rotatable valve to control the passage of gas thereto, a
spark arm fast on and movable with said valve, a cooperating fixed contact insulated
from said arm, and means to rotate said valve, substantially as and for the purpose-
set forth.
3. In a gas burner a rotatable valve to control the passage of gas thereto,
a spark arm fast on and movable with said valve, a cooperating fixed contact,.
and a reciprocating actuating device for said valve and spark arm, substantially as
described.
4. In a gas burner, a rotatable valve therefor, a pivoted spark arm provided
with ears, a cooperating fixed contact and a frame having projections to engage the
said ears respectively, on alternate downward movements of said frame to oscillate
said valve and arm, substantially as described.
5. In a gas burner, a rotatable valve therefor, a pivoted spark arm provided
with diametrically-opposite ears, a cooperating fixed contact therefor,
a frame
spanning said valve and having projections upon its opposite sides to engage.
the said ears to oscillate the said valve and arm when the frame is drawn
down, and a spring to return said frame to its normal position, substantially as
described.
6. In a gas burner, a rotatable valve therefor, a pivoted spark arm provided
with ears, a cooperating fixed contact therefor, a frame e having projections to.
engage said ears and having the guide arms e³, substantially as described.
7. In a gas burner, a rotatable valve therefor, an arm fast on said valve and pro-.
vided with inturned cars, the plate, a fixed contact to cooperate with said arm;
the frame e arranged between said arm and plate and having projections to
cooperate with said cars, and the springs h, substantially as described.
8. A gas burner, a rotatable valve therefor, an arm fast on said valve and
provided with inturned ears, the plate, a fixed contact to cooperate with
said arm and the frame e arranged between said arm and plate and having pro-.
jections to cooperate with said ears, and bracket m, and the springs h, substantially
as described.
11
حين
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1005
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.