AN IMPROVEMENT OR IMPROVEMENTS IN COMPOUND MAGNETS
Year: 1884

page_text: I SAMUEL HICKLING PARKES of N° 5 and 6 Saint Mary's Row Birmingham in
the County of Warwick Mathematical Instrument Maker do hereby declare the
nature of the said Invention for AN IMPROVEMENT OR IMPROVEMENTS IN
COMPOUND MAGNETS" to be as follows:-
"
In constructing a compound magnet according to my Invention I take a wire or
rod of steel and bend it into a symmetrical zig-zag form. The bends may either be
angular or curved. When the bends are angular the intermediate parts are inclined
at a small angle to each other. When the bends are curved the intermediate parts
are parallel or nearly parallel.
I magnetise the zig-zag wire or bar either by a powerful steel magnet or by an
electro-magnet the exciting magnet being so applied to and moved upon the zig-zag
that all the adjacent angles or curves at one edge of the zig-zag are operated upon
by one pole of the exciting magnet and all the adjacent angles or curves at the
other edge of the zig-zag by the other pole of the magnet.
There is thus produced a compound magnet in the form of a flat zig zag each
angle or curve at one edge having north polarity and each angle or curve at the
other edge having south polarity.
A magnet of this kind is much more powerful thau a magnet made of the same
length of steel wire or rod employed in the ordinary way. It is very flexible and
elastic; it can be expanded or contracted longitudinally within certain limits and
also bent into a curved plane within certain limits without permanent change of
figure and is hence particularly suited for use in such magnetic appliances as are
used for medical purposes.
By coiling up the zig-zag into the form of a tube a powerful compound tubular
magnet is produced all the magnetism of the bends or angles having north polarity
being situated at one end of the tube and the magnetismn of the bends or angles
having south polarity at the other.
nichih davr of Fahr 1884

page_text: I SAMUEL HICKLING PARKES of N° 5 and 6 Saint Mary's Row Birmingham in
the County of Warwick, Mathematical Instrument Maker, do hereby declare the
nature of my Invention for "AN IMPROVEMENT OR IMPROVEMENTS IN COMPOUND
MAGNETS" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:—
In constructing a compound magnet according to my Invention I take a wire or
rod of steel and bend it into a symmetrical zig-zag form. The bends may either be
angular or curved. When the bends are angular the intermediate parts are inclined
at a small angle to each other. When the bends are curved the intermediate parts
are parallel or nearly parallel.
•
I magnetise. the zig-zag wire or bar either by a powerful steel magnet or by an
electro-magnet the exciting magnet being so applied to and moved upon the zig-zag
that all the adjacent angles or curves at one edge of the zig-zag are operated upon
by one pole of the exciting magnet and all the adjacent angles or curves at the
other edge of the zig-zag by the other pole of the magnet.
There is thus produced a compound magnet in the form of a flat zig-zag, each
angle or curve at one edge having north polarity and each angle or curve at the
other edge having south polarity.
A magnet of this kind is much more powerful than a magnet made of the same
length of steel wire or rod employed in the ordinary way. It is very flexible and
elastic, it can be expanded or contracted longitudinally within certain limits and
also bent into a curved plane within certain .limits without permanent change of
figure or disturbance of the magnetic polarity and is hence particularly suited for
use in such magnetic appliances as are used for medical purposes.
By coiling up the zig-zag into the form of a tube a powerful compound tubular
magnet is produced, all the magnetism of the bends or angles having north polarity
being situated at one end of the tube and the magnetism of the bends or angles
having south polarity at the other.
Figure 1 of the accompanying Drawing represents, in side elevation and edge
view, a compound magnet constructed according to my Invention, the bends of the
flat zig-zag steel wire or rod of which the magnet is formed being angular;
Figure 2 represents a similar compound magnet in which the bends of the flat zig-
zag steel wire or rod are curved instead of angular. In the compound magnet
Figure 1 the parts of the magnet between the bends are inclined at a small angle
to each other as represented; but in the compound magnet Figure 2 the said parts
are parallel or nearly parallel as represented.
The flat zig-zag steel wire or bar which, may be made of any length, is
magnetized so as to convert it into a compound magnet in the manner herein
before described, each angle or curve n at one edge having a north polarity and
each angle or curves at the other edge having a south polarity. When the flat
zig-zag or compound magnet Figure 1 or Figure 2 is bent or rolled up into a tube,
a tubular compound magnet is formed the magnetism of the bends or angles at onc
end having north polarity and the magnetism of the bends or angles at the other
end of the tube having south polarity.
Compound magnets constructed according to my Invention may be used for
various purposes but they are particularly applicable to magnetic appliances for
medical purposes. I do not however limit myself to any particular application of
the said compound magnets. Figure 3 represents in elevation and edge view one.
of the compound magnets enclosed in a pocket or bag of flannel or other fabric to
form a magnetic pad.

page_text: In using this pad it is tied upon the part of the bead or face or person to which
magnetism is to be applied. The points of the arrows in the several Figures
indicate the position of the north poles of the compound magnets.
Figures 4 and 5 are diagrams of magnetic armlet, waist, back, or stomach bands
containing compound magnets constructed according to my Invention. In Figure 4
the parts of the band containing the compound magnets are marked a b and
are arranged at a short distance apart on the strips of flannel or fabric of the band
and in Figure 5 the parts of the band containing the compound magnets are marked
c, d and are arranged in pairs.
Figures 6 and 7 are diagrams illustrating combined waist and back bands to
which my improved compound magnets are applied. In Figure 6 one of the.
compound magnets at e is used for the back and the waist belt or band h may
contain one or more compound magnets. In Figure 7 a pair of magnets at f, g is
used for the back, the waist band h containing one or more compound magnets.
The bands i, i which pass over the shoulders may be connected by buckles or
otherwise to the waist band h.
Having now particularly described and ascertained the nature of my Invention
and in what manner the same is to be performed I declare that what I claim is :-
Making compound magnets by bending a steel wire rod or bar into a symmetrical
flat zig-zag form, the bends being either angular or curved, the zig zag wire, rod
or bar being magnetized and thereby converted into a permanent magnet by
applying a powerful steel magnet or an electro magnet in the manner described to
the adjacent angles or curves at opposite edges of the zig-zag, the said compound
magnet being used either in the flat form or coiled up into a tubular form
substantially as hereinbefore described and illustrated in the accompanying
Drawing.

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