Apparatus for Dyeing Hair.
Year: 1890

page_text: Date of Application, 21st Nov., 1890
Complete Specification Left, 20th Aug., 1991--Accepted, 19th Sept., 1891
PROVISIONAL DEBATTUATION.
Apparatus for Dyeing Hair.
I, PHILIPP AUGUST WICHELMANN, Manufacturer, of Hemelingen, near
Bremen, Germany, do hereby declare the nature of this invention to be as
follows
-
This invention has for its object, to avoid the moistening of the scalp when the
hair is being dyed.
For this purpose I employ a flat rectangular box which contains the dye-liquid
and carries at the top a row of hollow teeth, each of which is provided with a small
lateral opening situated a short distance from the end of the tooth. The teeth
may be fixed to the dye-receptacle, or they may be mounted on a plate which
can be moved up and down, and the liquid is pressed out of each orifice either by
means of pistons situated in the hollow teeth, or by means of a diaphragın and
elastic knob, adapted to diminish or increase the volume of the dye-receptacle.
If the teeth are fixed to a moveable plate, the latter is held up by means of
springs, placed between the plate and the cover of the box, and the said cover is
provided with a row of thin tubes which fit into the teeth, so as to displace the
liquid in proportion as the moveable plate is pressed down. A casing of india-
rubber connects the moveable plate with the cover of the box, so as to prevent
leakage.
Dated this 20th day of November 1890.
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Apparatus for Dyeing Hair.
I, PHILIPP AUGUST WICHELMANN, Manufacturer, of Hemelingen, near
Bremen, Germany, 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 :---
This invention has for its object, to dye the hair from the root, without
moistening the scalp.
For this purpose I employ a flat box which contains the dye-liquid and carries a
row of hollow teeth, each of which is provided with a small lateral opening
situated a short distance from the end of the tooth.
In the accompanying drawings
Fig. 1 is a side elevation, Fig. 2 a transverse section, and Fig. 3 a longitudinal
section of an apparatus embodying my invention.
Fig. 4 is a vertical transverse section similar to Fig. 2, but representing a
different stage of operation.
Figs. 5 and 6 are detail views of a tooth on a larger scale.
A part of the surface of the dye receptacle A is formed by a plate k, which is
either pressed outward by a separate spring, or which has sufficient elasticity, in
itself to act as an elastic membrane, as shown by the drawing. By depressing this
plate, the space of the receptacle is diminished and thereby the liquid pressed
through the apertures of the teeth mentioned above.
In order to retard the escape of liquid through the orifices, I have adopted a
special contrivance. That is to say each tooth is composed of two tubes, h and h'.
27

page_text: The outer tube is closed at both ends (except the orifice o). The inner tube h
is open at both ends; its walls do not touch those of the outer tube, and the inner
tube does not extend to the free end of the outer tube h. Below the tube h¹ there
is a small sponges through which the liquid has to pass before it can escape
through the lateral orifice o of the outer tube, and thus reach the hair.
The sponge therefore retards the flow of the dye liquid. The latter passes
from the receptacle A through the inner tube and the sponges to the orifice o
and moistens the hair from the root, without moistening the scalp. Instead of the
sponge, any other suitable material may be employed which is only slowly
permeable for the dye liquid.
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 :-
Apparatus for dyeing hair, comprising a dye receptacle provided with a pressure
platek, and a row of hollow teeth having lateral openings, the said teeth h
containing smaller tubes open at the bottom, and sponges placed at the ends of
the inner tubes ', substantially as described.
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.