Improvements in the Preparation of Roasted Coffee.
Year: 1889

page_text: Date of Application, 7th Mar., 1889
Complete Specification Left, 2nd Sept., 1889-Accepted, 5th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Preparation of Roasted Coffee.
I, HENRY GARDNER, of 166 Fleet Street, in the City of London, Patent Agent do
hereby declare the nature of this invention which has been communicated to me from
abroad by David Strang of Esk Street Invercargill in the Colony of New Zealand,
Coffee and Spice Merchant to be as follows:-
*
This invention consists of an improvement in preparing roasted Coffee into a fine
dry powder soluble in boiling water, to be known as Strangs Patent Soluble Coffee
Powder."
The novelty of the invention consists in the production of a fine dry Coffee
powder from roasted Coffee beans so as to be instantly or quickly soluble in boiling
water.
Ordinary Coffee requires to be boiled in order to be fit for use but being
granular the full flavour and strength of the Coffee is not even then extracted.
The powder I make being very fine is immediately soluble in boiling water and
can be used without being boiled. It is more economical for use than ordinary
Coffee because being fine the application of boiling water extracts the full flavour
and strength of the Coffee, and it is much more simple and convenient to use thin
ordinary Coffee which requires to be boiled in a pot whereas the powder can be
dissolved in a cup.
Dated this 7th day of March One thousand eight hundred and eighty nine.
COMPLETE SPECIFICATION.
Improvements in the Preparation of Roasted Coffee.
I, HENRY GARDNER, of 166 Fleet Street, in the City of London, Patent Agent do
hereby declare the nature of this Invention (which has been communicated to me
from abroad by David Strang, of Invercargill, New Zealand) and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement:-
"
This invention consists of an improvement in preparing roasted coffee into a fine
dry powder soluble in boiling water to be known as Strang's Patent Soluble Coffee
Powder."
Hitherto roasted coffee has been ground more or less coarsely so as to necessitate
its being boiled before any palatable beverage could be obtained from it, and even
then its full flavour and strength has not been extracted, some of the coarser grains
getting quite tough and so refusing to give up their flavour. These grains are entirely
wasted.
Now according to this invention there is absolutely no waste at all and there is no
necessity to boil the coffee.
Instead of grinding the roasted coffee coarsely as hitherto, it is ground into a
sufficiently dry and fine powder to make it soluble immediately it is placed in boiling
water so that all loss is avoided and a beverage produce. which is much more
delicate and true than that which is produced by the ordinary method of boiling.
The essential feature of the invention is the fineness of the powder to which the
coffee is reduced. No half measures are sufficient, but it is absolutely needful that
it should be ground sufficiently fine to pass through fine silk.
This ensures a
uniform as well as a sufficient fineness so that when placed in boiling water it
immediately dissolves. The difference therefore between this coffee powder and
ותג ....

page_text: ordinary ground coffee is this:-that whereas the latter requires to be boiled before
it will give out the whole of its flavour (and even then refuses to give it all out)
this coffee powder requires no boiling but gives out the whole of its flavour and
dissolves immediately it is placed in boiling water.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
Roasted Coffee reduced to a dry powder sufficiently fine to pass through fine silk
so as to produce an article which is soluble in boiling water substantially as berein
described and explained.
Dated this Second day of September One thousand eight hundred and eighty
H. GARDNER.