Improvements in Electrical and other Gas-lighters and Extinguishers.
Year: 1895

page_text: Date of Application, 20th Dec., 1895-Accepted, 1st Feb., 1896
COMPLETE SPECIFICATION.
Improvements in Electrical and other Gas-lighters and
Extinguishers.
THE ANGLO-SWEDISH TRADING ASSOCIATION LTD., of 64, Aldersgate Street,
London, E.C., and OSCAR EHRENFRIED WOLLERT, 5 Benergarten Stockholm
Sweden Engineer, 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 has for its object an improved means of regulating the opening
and closing of gas valves, more especially those operated by impulses-such as in
electrically, mechanically or other-wise operated gas lighters and extinguishers in
which a valve is lifted off its seat by one impulse and kept off, the next impulse
lifting it again and finally dropping it back onto its seat, and so on alternately.
In the accompanying drawings, in which, like letters indicate like parts,
Fig. 1 represents a sectional elevation of an electrically operated gas lighter and
extinguisher to which our improvements have been applied, the gas-valve being
shown in the closed position.
Fig. 2. is a detail, showing the position of the parts of our improvements, after
the circuit has been closed for lighting.
Fig. 3. is a detail showing the position of parts illustrated in Fig. 2. after the
circuit has been broken, the valve being left open.
Fig. 4. is a back view of the detail showing parts in same position as in Fig. 3. ;—
Fig. 5. is a side elevation of same and
Fig. 6. a sectional plan of Fig. 1. taken on the line x-x.
"
In Figs. 1. & 6, "A," represents the bobbin of a solenoid or electro-magnet
having a suitable screwed socket "A1" and bored to receive a valve "a" whose
sides are provided with flats or channels to allow the gas to pass it when its conical
lower end is lifted off its seat "b," this bobbin,
6: A is wound in the usual way
with insulated wire "c." which forms part of the same circuit which includes the
resistance "d." and the insulated conductors "d'," said circuit, when closed, heating
the said resistance to incandescence and, by energising the solenoid, lifting the
valve "a" to allow the gas to pass to the burner "e" where it is ignited by the
said resistance "d."
"B," is a gas-tight cover into which the gas passes on its way to the burner.
The above describes one form of gaslighter and extinguisher to which we may
apply our improvements, but we do not restrict the application of our said improve-
ments to this particular class of lighter, but may adapt the said improvements to
other forms of gas-lighters and extinguishers.
"
Our improvements consist of a toothed wheel "f" supported by a suitable
bracket "g" on a pivot or pin "h," cöoperating with two pins or pellets, "k
and ""carried by an extension rod "1" of the valve "a" the said extension rod
having a guide "formed at the top of the bracket "g" and is prevented from:
turning by the lower pellet "k" travelling in a slot "n" formed in the said
bracket" 'g."
"
$6
m
The toothed wheel "f" is provided with alternate deep and shallow spaces
between its teeth and the said teeth have their sides inclined so as to cause the
toothed-wheel "f" to be partially rotated each time either of the pellets ""
or "" engages the said teeth, each of the said pellets engaging the next space
to the one it previously engaged, with successive liftings and fallings of the valve.

page_text: *
"
In "Fig. 1." the valve " a "has been allowed to reach its seat by the pellet "k
having dropped into a deep space "1" between two teeth of the toothed wheel "f."
Fig. 2 shows the altered position of the toothed wheel "f" after being engaged
by the lower pellet "k" when the valve "a" (not shown in this fig.) with its
extension rod "1" has been lifted, the said pellet "" sliding along the inclined
side "2" (see Figs. 1 & 2) of a tooth on the wheel "f," thereby turning it
sufficiently, in the direction indicated by the arrow "3," to so place the inclined
side of a tooth "4" as to be engaged by the upper pellet "" when the valve "a"
with its extension rod "/" drops, after which the toothed-wheel "f" is again
moved in the direction indicated by the arrow "3" to the position shown in Fig. 3
where the extension rod "" of the valve a " is shown in a higher position than
that it occupied when the valve was closed, as in Fig. 1, owing to the upper
pellet "k" having dropped into a shallow space "5" (see Fig. 3) between two
teeth of the toothed wheel "f," thereby being prevented from shutting off the
supply of gas; reference to Fig. 3 will further show that the upper pellet "k" in
its descent turned the toothed-wheel "f" into a position enabling the lower
pellet "" to engage the inclined side "6" of a tooth on the wheel "f" the next
time it, with the parts to which it is attached, is lifted, after which it would be
found that the toothed-wheel "f" had been further moved so as to enable the
upper pellet "k" to engage the next tooth and thereafter drop into a deep space,
thus effecting the alternate opening and shutting of the valve "a."
The lower pellet "k" is shown a little longer than the upper pellet "k" and
extends through a slot " n "in the bracket " 9" which prevents the valve "a," its
extension "" and the pellets "k & k" from being turned on their axis out of
engagement with the said toothed-wheel "f."
The bracket " "
is secured to the bobbin "A" in any convenient manner, such
as by the screws S."
66
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :
1. In an electric or other gas-lighter and extinguisher, having a vertically
operated valve ; the use of a valve extension rod "1" provided with two
pellets "k & k¹ " cöoperating with a toothed-wheel "f" provided with alternate
deep and shallow spaces between its teeth, the said teeth having inclined sides so
as to cause the wheel "f" to be rotated tooth by tooth by the said pellets "k & k¹"
operating upon opposite sides of the said toothed-wheel "f" when they, with the
valve "a" & its extension rod "" are lifted and dropped, and effecting the
alternate opening and closing of the gas supply by the upper pellet "k" alternately
dropping into a shallow and deep space, respectively, between the teeth of the said
toothed wheel "f" all substantially as described and for the purposes set forth in
the Specification.
k
2. The general combination and arrangement of parts constituting a gas lighter
and extinguisher substantially as described and for the purposes set forth in the
Specification.
ב
JAS. F. ARMSTRONG,
64 Aldersgate Street, London, E.C., Applicants' Agent.