Improvements in and relating to French and the like Polishes.
Year: 1895

page_text: Date of Application, 13th Dec., 1895-Accepted, 18th Jan., 1896
COMPLETE SPECIFICATION.
Improvements in and relating to French and the like Polishes.
I, CARL FERDINAND FRANZ BRATSCH of Prinzenstrasse 73, Berlin in the
German Empire, Manufacturer, 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 relates to French and the like polishes and its object is to produce
a polish which will not bloom upon or exude from the article to which it has been
applied.
With the polishes now ordinarily used an ugly eruption or exudation often
appears upon the surface of the polished article after the lapse of some time.
Various attempts have been made to overcome this defect but hitherto without
success owing to the circumstances that the oil used in polishing was considered to
be the cause.
It has now been discovered however that the vegetable wax which is contained
in the shellac causes this eruption. During the polishing process the vegetable
wax combines intimately with the oil and produces a soft smeary substance which
prevents the polish becoming properly hard. The resulting polished surface is
thus very sensitive to change of temperature or weather and to handling, and in
time is more or less covered with an exudation.
These defects are thoroughly overcome by extracting the vegetable wax from
the shellac used in the polish.
This extraction or separation may be effected by repeated filtration of the polish
or by agitating the polish with a material capable of separating the vegetable wax.
The time required for separating by filtration is considerably shortened if stick
lac be added to the polish, this addition also rendering the polish much harder
and increasing its resistance to heat. To overcome the increased difficulty of
polishing and the decreased flexibility caused by the addition of the stick lac, it is
preferred to add to the polish a small quantity of an ethereal oil, such for example
as oil of rosemary or oil of lavender.
A polish is thus produced which is hard and glassy and indifferent to changes of
climate and temperature, and which never exudes oil. The polishing process
involves very little labour and takes considerably less time than when a polish
used containing vegetable wax. The new polish is transparent and enables the
grain of the wood to which it is applied to be easily seen. Considering the amount
of surface which can be effectively polished it is also cheaper than the ordinary
polish previously in use.
The following is an example of how the improved polish may be prepared.
хотса ропод шву бе рrерител
25 parts of stick lac.
20 parts of shellac.
4 parts of gum benzoin,
are ground or crushed, and dissolved in
100 parts of spirit, (containing 95 to 96 per cent.
of alcohol), and
1 part of oil of rosemary.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In the manufacture of French and the like polishes extracting the vegetable
wax from the shellac, substantially as and for the purpose herein before described.
2. In the manufacture of French and the like polishes the addition of stick lac
to the polish before filtration, substantially as aud for the purpose hereinbefore
described.
3. In the manufacture of French and the like polishes the addition to the polish
of an ethereal oil, substantially as and for the purpose hereinbefore described.
4. French and the like polishes, manufactured substantially as and for the
purpose hereir before described.
Dated this 12th dev of December & D 100x