IMPROVEMENTS IN THE MODE OR MODES OF OBTAINING SCENTS, AROMA, PERFUME, OR ESSENTIAL OILS FROM FLOWERS AND FROM ALL VEGETABLE SUBSTANCES PRODUCING THE SAME, ALSO IN THE MACHINERY OR APPARATUS IN CONNECTION THEREWITH
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by William Pidding at the Office
of the Commissioners of Patents, with his Petition, on the 6th
July 1869:
I, WILLIAM PIDDING, of Walcot Square, Lambeth, in the County
of Surrey, Gentleman, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MODE OR MODES OF OBTAINING SCENTS, AROMA,
PERFUME, OR ESSENTIAL OILS FROM FLOWERS AND FROM ALL VEGETABLE SUBSTANCES
PRODUCING THE SAME, ALSO IN THE MACHINERY OR APPARATUS IN CONNECTION
THEREWITH," to be as follows:-
My said Invention consists in treating living plants, shubs, and
vegetable productions by a process or method by which I collect their
aroma, scent, and essential vapour or oil without destroying the vitality
of the same.
I place the living plant or whatever vegetable production I may wish
to subject to my process in a receiver or vessel so formed as to allow the
air from within to be extracted as required. The vessel or receiver herein-
before alluded to I prefer to be made of a transparent or translucent

page_text: material for the purpose of admitting of the rays of the sun to pass through
it, say glass or a textile fabric rendered transparent or translucent in
the usual way by being saturated with oil, glycerine, varnish, or other
material; such glass (unless a glass shade) or textile material I place in
frames, stretching the latter. Vegetable matter under process is to remain
in the receiver a sufficient length of time to allow of its giving forth or
emitting its aroma or essential vapour or oil; the air in the receiver thus
becoms impregnated and scented by the same. I extract the air so
impregnated from the receiver by means of an exhausting apparatus or
suitable appliance to an extent so as not to deteriorate or injure the living
plant or to prevent injury to the vegetable substance by exhausting the air
contained in the receiver; I perforate it to any required extent in order
that fresh air shall pass through them into the receiver as it is withdrawn
from it, or pass or force the same into a suitable vessel or receiver; such
vessel may contain oil, fatty matter, spirits, or other material for which
scents, aroma, or essential oil has an affinity, so that they would become
inpregnated with the same, or the essential oil or vapour may be forced
through them. After removeing or partially extracting the air from the
receiver herein-before described I refill it from without with fresh air
by turning a valve in a tube I attach to it. A tube is also placed in
connection with the exhausting apparatus, herein-before described, also
passes through the receiver. The processes of exhausting and forceing
therein-before described are repeated hour by hour, day by day, or week
by week, until the flower or vegetable matter under operation will
give forth no more or an insufficient quantity of essential oil or
vapour.
Instead of adopting the processes described I place any material
having a strong affinity for scent, aroma, or essential oil into the receiver
and allow it to remain therein until it is sufficiently impregnated with the
same, and I then remove it therefrom and extract or collect the essential

page_text: receiver herein-before described. To increace the development of the
aroma, scent, or essential oil in the vegetable substance when growing
and living under operation I supply the same with water, mixed or not
so, with any suitable chemical, and which I prefer to be and to be kept
at any degree of heat which will not injure the living vegetable matter
by suitable means and appliances. I prefer to have a tube placed at the
lower part of the receiver herein-before described connected with an
exhausting apparatus in order to withdraw ocasionally the constantly
accumulating carbonic acid gass generated.