A Magneto-electrical Igniting Apparatus.
Year: 1893

page_text: Date of Application, 25th Sept., 1893
Complete Specification Left, 23rd June, 1894-Accepted, 28th July, 1894
TRUVIDIONAL DI MULTICATION.
A Magneto-electrical Igniting Apparatus.
I, JULIUS DRACH, of II Czerningasse 3 Vienna, Austria, do hereby declare
the nature of this invention to be as follows:-
My invention relates to magneto electrical apparatus so arranged that by the
rapid movement of a solenoid so as to bring its poles away from poles of a
permanent magnet or to poles opposite to those with which they were previously in
contact, an electric current is induced in the coil of the solenoid, which by means of
a contact breaker in the circuit of the coil produces a spark for effecting ignition
of any inflammable or explosive material. In one form of the apparatus, the
solenoid, which consists of a core made up of iron wires coiled with insulated
copper wire, is fitted to slide from a position in which its projecting pole pieces are
in contact with the poles of one horse shoe magnet to a position in which they are
brought in contact with opposite poles of another magnet. The movement is
effected by a hand lever, on releasing which a spring returns the solenoid to its
previous position. In a modified form of the apparatus the solenoid is mounted on a
transverse axis between the poles of a permanent magnet, and is suddenly turned
partly round by the action of the hand lever, moving each of its poles away from
that pole of the magnet with which it was in contact and bringing it in contact with
the opposite pole. When a more powerful apparatus is required I arrange a
number of permanent horse shoe magnets one above another, in layers separated by
non magnetic material, each layer consisting of a pair of magnets, presenting their
similar poles towards each other, but these are opposite to the poles of the next pair
immediately above or below them.
Between the poles is fitted a sliding frame carrying a number of solenoids
arranged above each other one facing each pair of the magnets. On depressing
this frame each of the solenoids is moved from facing one pair of poles down to face
an opposite pair, electric currents being thus induced in these coils which are all con-
nected. In order to produce the spark resulting from the action of any of the apparatus
above described, I arrange in the circuit of the coil or coils a contact consisting of
two members, one of them rigid and connected to the slide or axis carrying the
solenoid or solenoids, the other member elastic, so that when the arm or axis is
suddenly stopped at the end of its stroke, the elastic member, in virtue of the
momentum imparted to it, moves onwards breaking the contact and so causing the
spark. In order to provide against the spark being produced in the apparatus
itself, I employ a number of pairs of separable contact pieces connected parallel in
the circuit of the coil, so that on separating these by the movement of the slide or
axis of the solenoids no spark is produced at them.
Dated this 25th day of September 1893.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
A Magneto-electrical Igniting Apparatus.
I, Julius Drach, of II Czerningasse 3, Vienna, Austria, 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:-—
My invention relates to magneto electrical apparatus so arranged that by the
IDN'T
I, JULIUS DRACH, of II Czerningasse 3, Vienna, Austria, 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:—
My invention relates to magneto electrical apparatus so arranged that by the
Du'l

page_text: rapid movement of a solenoid so as to bring its poles away from poles of a
permanent magnet, or to poles opposite to those with which they were previously in
contact, an electric current is induced in the coil of the solenoid, which current by
means of a contact breaker in the circuit of the coil produces a spark, effecting
ignition of inflammable or explosive material presented to it.
Igniting apparatus according to my invention are illustrated by the accompanying
drawings shewing several modifications.
Figs. 1 and 2 are vertical sections on planes at right angles to each other and
Fig. 3 is a plan of one form of the apparatus in which the solenoid is reciprocated
vertically.
Fig. 4 is a vertical section, Fig. 5 a side view and Fig. 6 a plan of a modification
in which the solenoid is oscillated on a pivot or spindle.
Figs. 7 and 8 are vertical sections on planes at right angles to each other, and
Fig. 9 is a plan of a multiple apparatus having vertically reciprocating
solenoids.
Fig. 10 is a plan of contact breaker suited for the apparatus shewn in Figs. 4, 5
and 6, and
Fig. 11 is an elevation of contact breaker for the apparatus shewn in Figs. 1, 2
and 3.
Figs. 12 and 13 are sections on planes at right angles to each other of a multiple
apparatus having an oscillating solenoid, and
Fig. 14 shews the contact breaker to an enlarged scale.
Referring first to Figs. 1, 2, 3 and 11 a a', are the limbs of two horseshoe
permanent magnets placed with their opposite poles facing each other.
is a coil
wound on a subdivided core constituting a solenoid from which end studs 2 project
into guide slots formed in side pieces d.
The solenoid has a central rod sliding in guides flf the upper end of the rod
and the guide being of square section to prevent the solenoid from turning. It
is pressed upwards by a spring g acting on a pin h passed through the rod f.
T is a knob on the end of a levere which at el rests on the pin h and is pivotted
ate on a bracket 3. On pushing down the knob T, the solenoid descends the
ends of its core moving away from the poles of the upper magnet to meet the
opposite poles of the lower magnet, an electrical current being thus induced in
the coil b
On releasing the knob T, the spring causes the solenoid to ascend, whereby
another current is induced in its coil. The ends of the coil wire are connected at p
respectively to a bent bar m and to a bent spring a the ends of which are in contact.
A rod attached to the stud 2 of the solenoid has a slope on its edge, which as the
solenoid descends acts on a projection from the spring n causing it to bend aside,
breaking contact with m, and as this breach of contact occurs when the current is
induced in the coil, a spark is produced which can ignite the wick of a lamp L
presented near the point where m and n meet.
Referring now to Figs. 4, 5, 6 and 10, the solenoid consisting of coil 6 wound on
core is fixed on a vertical spindle which is pivotted below in a² the yoke of
a horseshoe magnet having limbs a a', and above in a non-magnetic piece d fixed on
these limbs.
The lever e which rests on spring has in this case a bell crank arm connected
by link i to a pink on the spindle. On depressing the knob T, the solenoid is
caused to make an oscillation bringing the ends of its core away from one pair of
poles of the magnet to the opposite pair of poles, thus inducing a current in its
coils. The ends of the coil wire are connected respectively to an arm m which is
attached to and to a piece n which is fixed to m but is insulated from it at p and
which has a spring blade ¹ terminating in a piece q normally in contact with m
at q'. When the spindle is oscillated, it is suddenly stopped by the solenoid core
meeting the limbs of the magnet, but the momentum of the piece y causes it to
move onwards breaking contact with y' and thus producing a spark.
Referring to Figs. 7, 8 and 9, a number of pairs of ring shaped magnets a a¹ each

page_text: open at one side are fixed by bolts h on non-magnetic interposed pieces D, D. The
poles of each pair of magnets are opposite to these of the pair above and below.
A frained surmounted by a knob T and resting on a spring k is fitted to slide
vertically in guides e. The frame & has side bars c and fixed in it are a number of
solenoids which normally occupy a position each on a level with one of the
pairs of magnets a a'. When, by depressing the knob T, the frame d and the
solenoids are all caused to descend each to a position facing the next lower pair of
magnets presenting opposite poles, a current is generated in the coils of the
solenoids which are connected in series to contact pieces and g. As the solenoids
descend a sloping piece on an arm cacts on a projection g' of the spring g
causing g to separate from, producing a spark to ignite the wick of the lamp L.
As shewn in Figs. 12 and 13 a long solenoid is rocked by the knob T on a
spindle between a number of horse shoe magnets having alternately long and short
limbs a a. When the knob T is depressed causing the ends of the solenoid core b¹
to move from the one set of poles to the opposite poles and so inducing a current, a
rod w is at the same time pushed up raising an arm u which is pressed by a spring v
and a trigger t which is usually in contact with the top of the lamp L. As the
wire of the solenoid coil has its one end connected to the lamp aud its other end
to an insulated standard which carries », the separation of t from the lamp.
produces the igniting spark.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed,. I declare that what I
claim is :-
Magnetic electric igniting apparatus wherein a solenoid having the ends of its
core close to the poles of a magnet is moved so as to bring those ends to opposite
poles, causing an electrical current to be induced in the solenoid coil, and contact
pieces to which the solenoid coil is connected are by the same movement separated.
so as to produce an igniting spark, substantially as described.
Dated this 23rd day of June 1894.
ABEL & IMRAY,
Agents for the Applicant..