IMPROVEMENTS IN CHOPPING OR MINCING MACHINES
Year: 1872

page_text: LETTERS PATENT to William Burrows, of Smithfield Iron Works,
Leeds, in the County of York, for the Invention of "IMPROVEMENTS
IN CHOPPING OR MINCING MACHINES."
Sealed the 17th December 1872, and dated the 13th July 1872.
PROVISIONAL SPECIFICATION left by the said William Burrows at
the Office of the Commissioners of Patents, with his Petition, on
the 13th July 1872.
I, WILLIAM BURROWS, of Smithfield Iron Works, Leeds, in the
County of York, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN CHOPPING OR MINCING MACHINES," to be as follows:-
This Invention has for its object improvements in chopping or
mincing machines. The machine consists of a chopper or knife holder
mounted upon a stud or axis carried by a suitable frame, which also
carries the axis of a hand wheel. 'On this wheel are spur teeth gearing
with a pinion carrying an eccentric pin, which enters a slot formed for
it in the chopper or knife holder, and thus as the pinion revolves a
chopping action is obtained. The chopper or knife strikes upon a

page_text: wooden block for supporting the material to be cut, and the block is
contained in a circular dish. The block and dish are mounted upon an
axis, and are connected with a ring of teeth gearing with a pinion,
which is driven by an endless band from a pulley in connection with the
hand wheel, so that the block and dish rotate whilst the chopper or knifo
is in action.
.SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Burrows in the Great Seal Patent Office
on the 13th January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BURROWS, of Smithfield Iron Works, Leeds, in the County of York,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of July, 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 William Burrows, Her special license that
I, the said William Burrows, my executors, administrators, and assigns,
or such others as I, the said William Burrows, my executors, adminis-
trators, 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 CHOPPING OR MINCING
MACHINES," upon the condition (amongst others) that I, the said William
Burrows, 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 Scal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Burrows, do hereby declare
the nature of the said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
This Invention has for its object improvements in chopping or
mincing machines. The machine consists of a chopper or knife holder
mounted upon a stud or axis carried by a suitable frame, which also
carries the axis of a hand wheel. On this wheel are spur teeth gearing
with a pinion carrying an eccentric pin, which enters a slot formed for
it in the chopper or knife holder, and thus as the pinion revolves a
chopping action is obtained. The chopper or knife strikes upon a
wooden block for supporting the material to be cut, and the block is
contained in or surrounded by a circular dish. The block and dish are
mounted upon an axis, and are connected with a ring of teeth gearing
with a pinion, which is driven by an endless band from a pulley in
connection with the hand wheel, so that the block and dish rotate whilst
the chopper or knife is in action.
The method above described of actuating the parts of the machine is
susceptible of some variation.
.
And in order that my Invention may be fully understood and readily
carried into effect, I have in the Drawings hereunto annexed shewn a
chopping or mincing machine constructed as above described.
Figure 1 shews a longitudinal vertical section of the machine;
Figure 2, an end view; and Figure 3, a plan view of the same.
In these Figures a is the chopper or knife carried by an arm b, which
rocks on a pin or axis c; this pin is carried by the standard d, which
forms part of the frame of the machine. The standard also carries an
axis c, on which is a crank pin e', which enters a slot in the arm b; on
the axis e is also a fly wheel e² and a pinion e³, which gears with a
toothed wheel f; on this wheel is a crank handle f¹ by which it can be
revolved; g is the wooden block surrounded by the circular dish h.
The block g rests upon a disc k, on the under side of which is a pin or
axis upon which the disc can revolve. Around the disc is a ring of
teeth I, into which gears a pinion m; this pinion is driven from an
axis p by the bevil wheels n and o, and the axis p is itself driven by an
endless band from the axis of the hand wheel f, thus when the hand
wheel is revolved a slow revolving motion is given to the disc k and to
the block g carried by it, whilst at the same time a rising and falling

page_text: motion is given to the chopping knife. The block g is caused to revolve
with the disck by the pins k², which project up into holes in the under
side of the block.
When the knife is in its highest position the block and circular dish
can readily be lifted away from the disc, and the dish be emptied of its
contents.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that I claim, the
combined arrangement of chopping or mincing machine, substantially
as herein described.
In witness whereof, I, the said William Burrows, have hereunto set
my hand and seal, this Tenth day of January, in the year of our
Lord One thousand eight hundred and seventy-three.
WILLIAM BURROWS. (L.S.)