IMPROVEMENTS IN ELECTRICAL BRUSHES AND COMBS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by the said Joseph Norman Aronson
at the Office of the Commissioners of Patents on the 21st December 1881.
JOSEPH NORMAN ARONSON of Old Broad Street in the City of London.
"IMPROVEMENTS IN ELECTRICAL BRUSHES AND COMBS."
My Invention relates to electrical brushes and combs for the application of
currents of electricity to the skin of the head and roots of the hair for promoting
the growth of the bair and for curative and remedial purposes.
My Invention relates to the combination with a brush or comb constructed
substantially as hereafter described, for the transmission of electric currents to the
skin and roots of the hair, of an induction coil and battery for the generation of
the currents and to the peculiar construction of the brush and comb for the
purposes above mentioned.
The brush is made principally of animal bristles having intermixed therewith a
few metallic wire bristles, the whole set in a backing consisting of a pair of metal
plates insulated from one another and covered on the undersurface by a layer of
vulcanite, celluloid, or other insulating material.
The said metallic wires are preferably in the form of loops or staples, the limbs
of which pass through the backing and form the bristles. The metal plates are in
connection with the induction coil which is arranged in the brush back and with
the poles of the battery, which for convenience would be placed in the handle of
the brush. The coil is provided with a regulator consisting of a tube arranged to
slide in and out over the bundle of iron wire in the induction apparatus and
projecting through the side or end of the brush back whereby it may be readily
adjusted.
The coil is preferably of a flattened or oval form in cross section, or so wound

page_text: and arranged otherwise as to occupy but little space, and is provided with the
usual vibrating current breaker.
Instead of the electric brush being self contained the battery or both the battery
and the induction coil may be separate therefrom and connected by wires with the
terminals of the plates that are in the brush back as above described.
The electrical comb of my Invention is constructed of a pair of insulated metal
plates cut with teeth in the manner of an ordinary comb, the plates which are
parallel being separated by an insulating material and embedded in vulcanite,
celluloid, or other insulating material leaving only the points or other parts of the
teeth exposed. The plates are provided with terminals for the proper connection
of the wires from the battery and coil, or the battery and coil may be combined
with the comb as in the case of the brush.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Norman Aronson in the Great Seal Patent Office on the
21st June 1882.
JOSEPH NORMAN ARONSON of Old Broad Street in the City of London.
"IMPROVEMENTS IN ELECTRICAL BRUSHES AND COMBS."
My Invention relates to electrical brushes and combs for the application of
currents of electricity to the skin of the head and roots of the hair for promoting
the growth of the hair and for curative and remedial purposes.
My Invention relates to the combination with a brush or comb constructed
substantially as hereinafter described, for the transmission of electric currents to
the skin and roots of the hair, of an induction coil, and battery, for the generation
of the currents, and to the peculiar construction of the brush and comb for the
purposes above mentioned.
The brush is made principally of animal bristles having intermixed therewith
two sets of metallic wire bristles insulated from one another in the brush back in
which they are set, the said metallic wires being preferably in the form of loops or
staples, the limbs of which pass through the back and form the bristles. The two
sets are respectively in connection with the two ends of the secondary wire of the
induction coil which is arranged within the hollow brush back, the primary wire
being connected with the poles of the battery which might also be contained
within the brush back or be placed in the handle of the brush if provided with one.
The coil may be provided with a regulator consisting of a tube arranged to slide in
and out over the bundle of iron wire in the induction apparatus and projecting
through the side or end of the brush back whereby it may be readily adjusted to
vary the strength of the current, but this is not necessary and I prefer to dispense
with it. The coil is provided with the usual vibrating current breaker.
The electrical comb of my Invention is constructed of a pair of insulated metal
plates cut with teeth in the manner of an ordinary comb and combined with the
1
1

page_text: by rounded metal strips o o'. Figure 6 is an end view of a comb. It resembles
the brush as to the battery coil and the stock on which they are fixed, the metallic
combs p p being fixed like the metal plates o o¹ last described and inclined towards
one another until their points come into line, the points of the one coming between
those of the other so as not to touch.
Having described the nature of my Invention and the manner of performing the
same, I declare that what I claim as my Invention to be protected by the herein-
before in part recited Letters Patent is.
1st. The combination in a brush of a battery, an induction coil, sets of wire
bristles or contact plates and a circuit closer and push piece combined for use,
substantially as shown and described.
2nd. The combination of a battery, coil, and pair of combs, substantially as
shown and described.
In witness whereof I the said Joseph Norman Aronson have hereunto set
my hand and seal this Twentieth day of June A.D. 1882.
JOSEPH NORMAN ARONSON,
(L.S.)