lы- PROVEMENTS IN CERTAIN PARTS OF MACHINES FOR MINCING OR MINUTELY DIVIDING MEAT, VEGETABLES, OR OTHER SIMILAK SUBSTANCES REQUIRING TO BE MINUTELY DIVIDED
Year: 1870

page_text: LETTERS PATENT to Charles Topham, of Coleman Street, Bunhill Row,
in the County of Middlesex, Engineer, for the Invention of “lы-
PROVEMENTS IN CERTAIN PARTS OF MACHINES FOR MINCING OR MINUTELY
DIVIDING MEAT, VEGETABLES, OR OTHER SIMILAK SUBSTANCES REQUIRING TO BE
MINUTELY DIVIDED."
Sealed the 22nd November 1870, and dated the 25th May 1870.
PROVISIONAL SPECIFICATION left by the said Charles Topham at the
Office of the Commissioners of Patents, with his Petition, on the
25th May 1870.
I, CHARLES TOPHAM, of Coleman Street, Bunhill Row, in the County
of Middlesex, Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN CERTAIN PARTS OF MACHINES FOR MINCING OR
MINUTELY DIVIDING MEAT, VEGETABLES, OR OTHER SIMILAR SUBSTANCES REQUIRING
TO BE MINUTELY DIVIDED," to be as follows:-
:-
This Invention relates to all such machines for mincing or dividing
having a shaft, on or around which shaft are carried a number of discs,
each disc having helical propelling blades or pieces in the form of a

page_text: portion of a screw for the purpose of forcing or urging the substance
to be divided against the knives. The cutting or division of the
substance being effected by the travel or passage of the propelling
blades or pieces past the knives. Such machines have hitherto been
found defective, inasmuch as they do not give so fine a cut or divide the
meat or other substance so minutely as is desirable or required.
owing to the fact that all such machines have hitherto been made with
but one or two propelling blades to each disc.
This is
My Invention consists in obtaining the utmost practically minute
division of the meat or other substance by constructing the discs upon
the shaft with three or more propelling blades or pieces that shall upon
the rotation of the shaft urge or force the meat or other substance
requiring division against the knives, each such propelling piece or blade
being of the form of a portion of a helix, or screw, or any similar bent,
angular, or curved form that will cause the onward motion to. the knives
of the meat or other substance.
I find that with the machines of the size as ordinarily used three of
my propelling pieces or blades to the disc is generally a useful and
sufficient number to produce the required fine cut, but I propose to
employ four or a greater number in these machines when necessary, and
still further to increase the number in larger sized machines.
I do not limit myself to the exact number, but propose to use any
such increased number as will be found useful in giving the effect
required
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Topham in the Great Seal Patent Office
on the 25th November 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
TOPHAM, of Coleman Street, Bunhill Row, in the County of Middlesex,
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of May, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,

page_text: give and grant unto me, the said Charles Topham, Her special licence
that I, the said Charles Topham, my executors, administrators, and
assigns, or such others as I, the said Charles Topham, 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 "IMPROVEMENTS IN
CERTAIN PARTS OF MACHINES FOR MINCING OR MINUTELY DIVIDING MEAT,
VEGETABLES, OR OTHER SIMILAR SUBSTANCES REQUIRING TO BE MINUTELY DIVIDED,"
upon the condition (amongst others) that I, the said Charles Topham,
my executors or administrators, 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 manner 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 Charles Topham, 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 following statement :—
This Invention relates to all such machines for mincing or dividing
having a shaft, on or around which shaft are carried a number of discs,
each disc having helical propelling blades or pieces in the form of a portion
of a screw for the purpose of forcing or urging the substance to be
divided against the knives, the cutting or division of the substance being
effected by the travel or passage of the propelling blades or pieces
past the knives. Such machines have hitherto been found defective,
inasmuch as they do not give so fine a cut or divide the meat or other
substance so. minutely as is desirable or required, and at the same time
their delivery is, from their construction, necessarily slow. This is
owing to the fact that all such machines have hitherto been made with
but one or two propelling blades to each disc.
My Invention consists in obtaining the utmost practically minute
division of the meat or other substance by constructing the discs upon
the shaft with three or more propelling blades or pieces that shall,
upon the rotation of the shaft, urge or force the meat or other substance
requiring division on to the knives, each such propelling piece or blado

page_text: being of the form of a portion of a helix or screw, or any similar bent,
angular, or curved form that will cause the onward motion, to, the knives
of the meat or other substance.
I find that with the machines of the size as ordinarily used three of my
propelling pieces or blades to the disc is generally a useful and
sufficient number to produce the required fine cut and give the
necessarily increased speed in delivery, but I propose to employ four
or a greater number in these machines when necessary, and still further
to, increase the number in large-sized machines. The result I obtain
by the use of these discs with the increased number of propelling
blades is, that thereby the screw formed by the placing of these dises
upon the shaft is more perfect in its threat, or has a smaller space
between each portion of the threads, than the ordinary machines, by
which a much more minute and reliable cut is effected, and at the
same time the substance under division is more quickly cut and urged
forward.
I do not limit myself to the exact number, but propose to use any such
increased number as will be found useful in giving the effect required.
In witness whereof, I, the said Charles Topham, have. hereunto set
my hand and seal, this Twenty-fourth day of November, in the
year of our Lord One thousand eight hundred and seventy.