IMPROVEMENTS IN ROTARY HAIR BRUSHES ADAPTED FOR APPLYING ELECTRICITY TO THE HUMAN SCALP to be as follows
Year: 1884

page_text: I WILLIAM TAPP of College Green in the city and county of Bristol Hairdresser
do hereby declare the nature of my said invention for "IMPROVEMENTS IN ROTARY
HAIR BRUSHES ADAPTED FOR APPLYING ELECTRICITY TO THE HUMAN SCALP to
be as follows :-
"3
This Invention relates to certain improvements in rotary hair brushes fo
applying electricity to the human scalp.
In carrying the Invention into practice I use a wood stock as ordinarily used
for rotating hair brushes sufficiently large to allow of a magneto-electric machine
being placed inside the same Around the said wood stock I provide two or more
metallic bands through which I draw wire or a mixture of wire and bristle the
said metallic bands being so constructed as to form the poles of the electric current
generator by direct metallic connection as hereinafter described. On the ends of
the said stock I provide metallic plates to which the before mentioned metallic
bands are attached. Between the metallic bands around the wood stock I draw
pure bristle instead of the wire or wire and bristle as before mentioned.
On to a "pulley spindle" similar to that used by hairdressers I fix a wood core
or barrel into which is fastened by suitable means a magneto electric machine the
ends of said caso being closed by metal plates to which the poles of the electric
machine are attached. When the spindle and electric machine barrel are placed
inside the wood stock, the metallic ends of the stock and of the barrel come in
contact thereby completing the circuit.
Through one end of the electric barrel is passed a short shaft having at the
outer end an ordinary toothed wheel and at a short distance in the inside of said
barrel a crown toothed wheel which gears with another crown toothed wheel fitted
on the shaft of the fly wheel. On the stationary handle of the apparatus is a
toothed wheel which gears with the before mentioned outside wheel and on the
spindle of the apparatus revolving these two wheels gearing one with the other
operate the electric machine by means of the crown toothed wheels inside.

page_text: COMPLETE SPECIFICATION.
I WILLIAM TAPP Hairdresser of 37 College Green in the city and county of
Bristol do hereby declare the nature of my invention for IMPROVEMENTS IN
ELECTRIC ROTARY HAIRBRUSHES AND APPARATUS THEREWITH and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
In carrying my invention into practice I use a wood stock as ordinarily used for
rotatory hairbrushes, sufficiently large to allow a Magneto Electro Machine being
placed inside the same. Around the said stock either inside or outside but
preferably outside I construct two or more metallic bands. If more than two
I connect each alternate one metallically so as to form the basis of my two poles
as any Electrician will understand, but have prefered to arrange two metallic
bands in spiral form around the said stock as shown in the accompanying
drawings, and through the said bands I draw a mixture of bristle and wire or wire
only. The said metallic bands and wire bristle so arranged form the poles or
Electrodes of my Electric current generator by direct metallic connection therewith.
As hereinafter to be described. On each end of the said stock I fix a metallic
plate and to each plate I connect one end only of one of the herein before mentioned
metallic bands; these bands go arranged as to terminate short of the opposite plate
to which the other is attached in the spaces left between the said bands to form
insulation I draw pure bristle or other nonconducting material into them. It will
be readily understood that a separate wire must be used for drawing each metallic
band or -Electrode to prevent metallic connection between them. On a spindle
similar to that used by hairdressers I fix a wood barrel or case, into which by
suitable means I secure an Electro Magneto Machine, the ends of said case being
closed by metal plates to which the poles of the said electric machine are attached.
When the said case containing the electric machine is placed inside the heroinbefore
mentioned stock, the metallic ends of tho said caso and that of the stock come in
contact thereby continuing the metallic connection from the electric machine tó
the wire bristles of the brush, which, on being applied to the skin a complete
circuit is formed. To prevent the said case from revolving in or drawing out of
the said stock, I arrange a simple spring catch on the case to fit into a
corresponding slot in the metallic end of the stock. To rotate tho Electric Machine,
through one end of the said case or barrel containing the said machine I pass a
short spindle or shaft having at the outer end an ordinary toothed wheel, and on
the inner a crown toothed or bevelled wheel which gears into another crown
toothed wheel fixed on the shaft of the cog flywheel which flywheel gears into a
smaller wheel on the bobbin shaft. On the stationery handle of the apparatus is
a toothed wheel which gears into the before mentioned outside wheel which on the
apparatus revolving opperatus the electric machine, or the same effect may be
produced by making the outer end of the beforementioned short shaft secure in the
said stationery bandle the said crowntoothed wheel on the inner end gearing into
the other crowntoothed wheel and operating as before described. An electrician

page_text: will understand that having adopted the cog flywheel to gear into the smaller cog
wheel it becomes necessary to insulate some part of one of them which I do and
preferably the centre with wood or other nonconducting material.
References to drawings.
:
A Stationery Handle, B short spindle or shaft,
C Crown cog wheel on short shaft.
D Crown cog wheel or shaft carrying cog flywheel.
E Cog flywheel. F small cog wheel on bobbin shaft.
G Wood barrel or case. H spring catch on wood case.
I Metallic end on wood stock,
K. Metallic bands through which I draw wire bristle.
L Wood spaces for insulating.
M Showing brush fully bristled.
N Section Y. Y. O Bobbins.
Having now particularly described and ascertained my invention, and in what
manner the same is to be performed, I declare that what I claim is
1st The combination of a magneto electric machine with a rotary brush, which
machine is set in motion by the rotary action of the brush, and generates an
electri current which current is conducted by metallic connection to the wire
bristles, the circuit being completed by the scalp in the act of brushing. As
herein before described.
2nd In a rotary brush the arrangement and use of metallic plates forming the
electrodes through which is drawn wire bristles or a mixture of wire and bristle,
and which are so arranged in the form of bands around the stock to avoid any
perceptable break in the delevery of the current. Substantially as herein before
described.
3rd The sole use of a Magneto Electro Machine as an Electric current generator
in combination with rotary brushes. Substantially as hereinbefore described.
Dated this 20th day of March 1885.