Iм- PROVEMENTS IN THE CONSTRUCTION OF PORTABLE MAGNETS FOR CURATIVE AND OTHER PURPOSES
Year: 1872

page_text: LETTERS PATENT to William Darlow, of North Woolwich Road,
Canning Town, in the County of Essex, for the Invention of "Iм-
PROVEMENTS IN THE CONSTRUCTION OF PORTABLE MAGNETS FOR CURATIVE AND
OTHER PURPOSES."
Sealed the 22nd November 1872, and dated the 1st June 1872.
PROVISIONAL SPECIFICATION left by the said William Darlow at.
the Office of the Commissioners of Patents, with his Petition, on
the 1st June 1872.
I, WILLIAM DARLOW, of North Woolwich Road, Canning Town, in
the County of Essex, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE CONSTRUCTION OF PORTABLE MAGNETS FOR CURATIVE
AND OTHER PURPOSES," to be as follows:-
This Invention relates to improvements in the construction and mode
of applying portable magnets for curative and other useful purposes;
and the first part of my improvements consists in enclosing a magnetic
compound or magnetizable matter, such as iron or steel filings or small
2

page_text: turnings, borings, pieces of wire or other scrap iron or steel, oxide of
iron, steel, or other magnetizable matter mixed with any suitable
gummy, resinous, or bituminous matter, which, according to this part of
my improvements, is spread upon the surface of a piece of leather,
woven or other fabric, oil silk, felt, or other fibrous material, paper,
rush, reed, cork, india-rubber, or other suitable material, in sheets or
surfaces. The compound or magnetizable matter thus spread upon the
surface of one sheet is then covered by another sheet of leather fabric or
other suitable material, and the two sheets with the layer of magnetic
compound or magnetizable matter thus placed and enclosed between
them are firmly pressed or otherwise united together.
Or the magnetic layer may be formed by first coating the pieces of
fabric or material which are to enclose it on one side with gum, india-
rubber, cement, or other adhesive material, and then to sift on to one
of such surfaces either iron or steel filings or a magnetizable metallic
oxide, over which the other prepared adhesive surface is placed, and the
whole firmly pressed or otherwise united together.
I prefer to magnetize the iron or steel filings or metallic oxide after
sifting the same on to one of the prepared surfaces of the fabric or
material before the same is covered or enclosed by the other piece of
fabric in order to effect the distribution and polarization of all the
particles in one direction.
The sheets prepared as previously described are then cut up into
pieces of the size required for employing them as portable magnets in
forming belts, bandages, and other appliances for curative and other
purposes, and are rendered magnetic in the manner well understood.
The edges of each separate portable magnet thus prepared may be
protected by varnish or be otherwise covered or secured.
The magnetic compound or magnetizable matter may if desired be
enclosed between two ribbons or strips of india-rubber, and be afterwards
converted or vulcanized, as is well understood, and then rendered
magnetic.
In place of forming portable magnets according to my Invention as
previously described, I prefer to employ the magnetic metallic oxide in
a pure solid state by converting wire or thin pieces of steel or iron into

page_text: oxide by subjecting them to a high temperature in a retort or otherwise
whilst exposed to the action of a current of steam.
The magnetic oxide thus prepared is then made up so as to form
portable magnets by enclosing it first in a case or cover of tinfoil or
other non-magnetic metal or material, and which is afterwards enclosed
in an envelope of leather, paper, woven or other fabric, or other
suitable material, the magnets thus formed being afterwards rendered
permanently magnetic in the usual manner of magnetizing iron or
steel.
Portable magnets are formed in accordance with another part of my
improvements by enclosing particles of steel, iron, or magnetic metallic
oxide in a loose dry state, and in a thin layer between two pieces of
leather, paper, woven fabric, or other suitable material, either in tubes
or sheets, the particles being secured in position either by forming.
channels or recesses in the inner surfaces of the sheets of material
employed, or by sewing or uniting the same together in sections at short
distances apart, the edges being permanently secured together by gum
or other adhesive matter or otherwise.
Portable magnets made up as previously described are not liable to
become friable or casily broken up and destroyed, being also extremely
light and portable.
The magnetizable matter or oxides enclosed as previously described
may be made up into garments to be worn upon any part of the body,
or it may be employed in making baths, chairs, or couches, or it may be
made up
into vessels or chambers for enclosing or surrounding patients
in the application of magnetism for curative or health preserving
purposes.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of June, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Darlow, Her special license that
I, the said William Darlow, my executors, administrators, and assigns, or
such others as I, the said William Darlow, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF
PORTABLE MAGNETS FOR CURATIVE AND OTHER PURPOSES," upon the condition
(amongst others) that I, the said William Darlow, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said William Darlow, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say :-
This Invention relates to improvements in the construction and mode
of applying portable magnets for curative and other purposes; and
the first part of my improvements consists in enclosing a magnetic
compound or magnetizable matter, such as iron or steel filings, or small
turnings, borings, pieces of wire, or other scrap iron, or steel, oxide of
iron, steel, or other magnetizable matter, mixed with any suitable
gummy, glutinous, resinous, or bituminous matter, which, according to
my improvements is spread upon the surface of a piece of leather, woven
or other fabric, oiled silk, felt, or other fibrous material, paper, rush,
reed, cork, india-rubber, or other suitable flexible material in sheets or
surfaces. The compound or magnetizable matter thus spread upon the
surface of one sheet is then covered by another sheet of leather, fabric, or

page_text: other suitable material, and the two sheets with the layer of magnetic
compound or magnetizable matter thus placed and enclosed between
them are firmly pressed or otherwise united together.
Or the magnetic layer may be formed by first coating the pieces of
fabric or material which are to enclose it on one side with gum, india-
rubber, cement, or other adhesive material, and then to sift on to one
of such surfaces either iron or steel filings, or a magnetizable metallic
oxide, over which the other prepared adhesive surface is placed, and
the whole firmly pressed or otherwise united together.
I prefer to magnetize the iron or steel filings or metallic oxide (by
drawing a magnet over the surface to arrange the particles) after sifting
the same on to one of the prepared surfaces of the fabric or material,
before the same is covered or enclosed by the other piece of fabric, in
order to effect the distribution and polarization of all the particles in
one direction.
The sheets prepared as previously described are then cut up into
pieces of the size required for employing them as portable magnets,
in forming bells, bandages, and other appliances for curative and
other purposes, and which are rendered magnetic in the manner well
understood.
The edges of each separate portable magnet thus prepared may be
protected by varnish, or be otherwise covered or secured.
The magnetic compound or magnetizable matter after magnetization
may if desired be enclosed between ribbons, sheets, or strips of india-
rubber, leather, woven or other fabric, or other flexible material.
In place of forming portable magnets according to my Invention as
previously described, I prefer to employ the magnetic metallic oxide
in a pure solid state by converting wire or thin pieces of steel or iron
into oxide, by subjecting them to a high temperature in a retort or
otherwise whilst exposed to the action of a current of steam.
The magnetic oxide thus prepared is then made up so as to form
portable magnets, by enclosing it first in a case or cover of tinfoil, or
other non-magnetic metal or material, and which is afterwards enclosed
in an envelope of leather, paper, woven or other fabric, or other
suitable material, the magnets thus formed being afterwards rendered

page_text: permanently magnetic in the usual manner of magnetizing iron or
steel.
Portable magnets may be formed in accordance with another part
of my improvements by enclosing particles of steel, iron, or magnetic
metallic oxide in a loose dry state, and in a thin layer between two
pieces of leather, paper, woven fabric, or other suitable material, either
in tubes or sheets, the particles being secured in position, either by
forming channels or recesses in the inner surfaces of the sheet of
material employed, or by sewing or uniting the same together in sections
at short distances apart, the edges being permanetly secured together
by gum or other adhesive matter or otherwise.
Portable magnets made up as previously described are not liable to
become friable or easily broken up and destroyed, being also extremely
light and portable.
The magnetizable matter or oxides enclosed as previously described
may be made up into garments to be worn upon any part of the body,
or it may be employed in making baths, chairs, or couches, or it may
made up into vessels or chambers for enclosing or surrounding
patients in the application of magnetism for curative or health preserving
purposes.
Having thus described the nature of my improvements, and the
manner of carrying the same into practice, what I claim is,-
First. The improved construction of portable magnets for curative
and other purposes, by enclosing a magnetic compound, or magnetizable
matter mixed or combined with gummy, resinous, or bituminous
matter, between two surfaces of flexible material, substantially in the
manner herein-before described.
Secondly. I claim the construction of portable magnets for curative
and other purposes by enclosing magnetic metallic oxide in flexible
cases or covers, substantially in the manner herein-before described.
Thirdly. I claim the construction of portable magnets for curative
and other purposes, by enclosing particles of steel, iron, or magnetic
metallic oxide in a loose dry state, secured between two surfaces of
flexible material, substantially in the manner herein-before described.
Lastly. I claim the application of portable magnets constructed in
the manner herein-before described for curative and health preserving

page_text: purposes, by making them up into garments to be worn or applied to
any part of the body or for being used in the construction of baths,
chairs, couches, vessels, articles, or chambers for enclosing or surrounding
patients in the application of magnetism for the above purposes,
substantially as herein-before described.
In witness whereof, I, the said William Darlow, have hereunto set
my hand and seal, this Twenty-ninth day of November, in the
year of our Lord One thousand eight hundred and seventy-two.
Witness,
J. G. TONGUE,
Patent Agent,
WILLIAM DARLOW. (L.S.)
34, Southampton Buildings,
Chancery Lane,
W.C.