AN IMPROVED MACHINE FOR MIXING TEAS, COFFEES, AND GRANULAR SUBSTANCES
Year: 1872

page_text: LETTERS PATENT to John Bartlett, of the City and County of Bristol,
Iron Founder, for the Invention of "AN IMPROVED MACHINE FOR MIXING
TEAS, COFFEES, AND GRANULAR SUBSTANCES."
Sealed the 18th March 1873, and dated the 27th September 1872.
PROVISIONAL SPECIFICATION left by the said John Bartlett at the
Office of the Commissioners of Patents, with his Petition, on the
27th September 1872.
I, JOHN BARTLETT, of the City and County of Bristol, Iron Founder,
do hereby declare the nature of the said Invention for "AN IMPROVED
MACHINE FOR MIXING TEAS, COFFEES, AND GRANULAR Substances," to be as
follows:-
My Invention relates to an improved machine for mixing the different
kinds, qualities, and colors of teas, coffees, seeds, and other ground or
granular substances.
The apparatus consists of a rotary vessel of octagonal or other angular
or polygonal shape, and fitted internally with salient pieces of various
shapes, said pieces being angular and fixed to every alternate side of the

page_text: vessel, or otherwise, in such manner that when the latter is rotated the
contents will be thrown against the pieces, which act as beaters or
deflectors successively, and by their various angular forms will cause the
particles to become intimately mingled. The vessel is mounted on a
horizontal shaft, and one side is provided with a door at which the
materials may be introduced or discharged.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said John Bartlett in the Great Seal Patent Office
on the 27th March 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BARTLETT, of the City and County of Bristol, Iron Founder, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of September, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Bartlett, Her special licence that
I, the said John Bartlett, my executors, administrators, and assigns,
or such others as I, the said John Bartlett, my executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "AN IMPROVED MACHINE FOR MIXING
TEAS, COFFEES, AND GRANULAR SUBSTANCES," upon the condition (amongst
others) that I, the said John Bartlett, my executors or adminis-
trators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manuer the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said John Bartlett, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the

page_text: following statement, reference being had to the accompanying Drawings,
and to the letters and figures marked thereon (that is to say) :-
My Invention relates to an improved machine for mixing the different
kinds, qualities, and colors of teas, coffees, seeds, and other granular
substances.
The apparatus consists of a rotary vessel of octagonal or other angular
or polygonal shape, and fitted internally with salient pieces of various
shapes, said pieces being angular, and fixed to every alternate side of
the vessel, or otherwise, in such manner that when the latter is rotated
the contents will be thrown against the pieces, which act as (beaters or
deflectors successively, and by their various angular forms will cause the
particles to become intimately mingled. The vessel is mounted on a
horizontal shaft, and one side is provided with a door at which the
materials may be introduced or discharged.

page_text: The vessel A is rotated by wheel and pinion gearing, which may be
changed in order to regulate the speed at which the vessel should be
turned, according to the nature of the matters it is required to mix. I is
the spur wheel keyed on the end of the shaft B, and K is the pinion
mounted on a stud cast or fixed on the frame, and operated by a winch
handle L, both wheel and pinion being made removable, so as to be
readily replaced by others of different proportions. The vessel may also
be driven by machine power. A sliding drawer or receiver may be fitted
in guides in the frame into which the matters are discharged after being
mixed in the vessel, or other suitable receptacle may be provided.
Having described the nature of my Invention, and in what manner the
same is to be performed, I declare that what I claim as my Invention to
be protected by the herein-before in part recited Letters Patent is, a
rotary vessel constructed as herein described, and fitted with internal
blades or deflectors of various angular shapes, and placed in different
positions, substantially as shown and described for mixing teas, coffees,
and other matters, as specified.
In witness whereof, I, the said John Bartlett, have hereunto set
my hand and scal, this Twenty-fifth day of March, in the year
of our Lord One thousand cight hundred and seventy-three.