An Improved Machine for Crushing or Grinding Meat and for similar Purposes.
Year: 1888

page_text: Date of Application, 28th July, 1888
Complete Specification Left, 26th Apr., 1889
Complete Specification Accepted, 1st June, 1389
PROVISIONAL SPECIFICATION.
An Improved Machine for Crushing or Grinding Meat and for
similar Purposes.
I, SAMUEL ARNAUD, of Cliveden, Maidenhead, in the County of Berks, Chef-de-
Cuisine, do hereby declare the nature of this invention to be as follows:-
:-
My invention relates to an improved machine for crushing and grinding meat and
other fibrous materials to reduce them to the pasty or pulpy condition frequently
required for cooking purposes, and is designed for use in lieu of the pestle and mortar
hitherto used for the purpose.
My improved machine comprises a hollow casing having the shape of a cylinder
or of the frustum of a cone, the internal surface of which is longitudinally grooved or
otherwise roughened. At or near que end of this casing is a hopper or opening for
the introduction of the material to be ground, and at the other end is an opening for
the discharge of the ground material.
Within this casing is a roller the surface of which is also grooved or roughened and
adapted to rotate in close contact with the internal surface of the said casing so
that any material between the same is operated upon to reduce it to the required
condition.
The said roller is supported in suitable bearing in or upon the ends of the casing
and the grooves upon the same and the interior of the casing are formed spirally
in such a manner as to cause the gradual travel of the material through the
machine.
1 1
3011
G. F. REDFERN & Co.,.
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improved Machine for Crushing or Grinding Meat and for
similar Purposes.
J. SAMUEL ARNAUD of Clivedon, Maidenhead in the County of Berks, Chef-de-
Cuisine, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
My invention relates to an improved machine for crushing and grinding meat and
other fibrous materials to reduce them to the pasty or pulpy condition frequently
required for cooking purposes, and is designed for use in lieu of a pestle and mortar
hitherto used for the purpose.
My improved machine comprises a-hollow-casing having the shape of a cylinder or
of the frustum of a cone the internal surface of which is longitudinally grooved-or-
otherwise roughened.
At or near one end of this casing is a hopper or opening for the introduction of the
material to be ground and at the other end is an opening for the discharge of the
ground material.
Within this casing is a roller the surface of which is also grooved or roughened
and adapted to rotate in close contact with the internal surface of the said casing
so that any material between the same is operated upon to reduce it to the required
condition.
The said roller is supported in a suitable bearing or bearings in or upon the ends
of the casing and the grooves upon the same and the interior of the casing are formed
spirally in such a manner as to cause the gradual travel of the material through the
machine.
In order to enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawing in which-
Figure 1 is a longitudinal elevation of a machine for crushing or grinding meat and
for similar purposes constructed according to my invention, and
Figure 2 is a section of the same on the crooked line A, B of figure 1.
Figure 3 is a longitudinal section of the hollow casing, and
Figure 4 is a longitudinal elevation of the roller, both these latter figures being
drawn to an enlarged scale.
Figure 5 is a section of part of the casing on the line CD of figure 3 and
Figure 6 is a section of part of the roller on the line E, F of figure 4 the said
figures 5 and 6 being drawn to a still larger scale.
Similar letters in all the figures indicate similar parts.
a is the hollow casing and b, b are the grooves formed therein the said grooves
running in a longitudinal and slightly spiral direction as clearly shewn in figure 3.
c is the hopper at one end of the casing for the introduction of the material to be
ground the other end of the casing being open for the discharge of the ground
material.

page_text: d is the roller adopted to rotate in close contact with the internal surface of the
casing a in a bearing formed in a plate a¹ fixed to one end of the casing as
represented in figure 1.
e and e¹ are the grooves in the roller d. The grooves e are made of the form shewn
clearly in figure 6 and instead of being continuous are preferably interrupted as
indicated in figure 4. By making the grooves e of this shape and causing the roller
to act against the longitudinal grooves b of the casing I produce a grinding or pulping
action upon the material fed thereto and in this respect my improved machine
materially differs from a mincing machine which merely chops or cuts up the material
into very small pieces.
is the handle for rotating the roller d and
is a presser for forcing the material
placed in the hopper e to enter into contact with the suface of the roller d.
j
The casing a is cast with a foot h (figures 1 and 2) having a projection ; formed
with teeth engaging with any part of a series of teeth k formed on a clamping
bracket of which i represents the clamping screw. This arrangement allows of the
machine being rapidly fixed to a table A (figure 1) or the like, it being only necessary
for this purpose to place the machine with the foot at the edge of the table A and
then to place the clamp against the edge and under side of the table when the
teeth will be located in some of the teeth k. By then giving one or two turns to
the clumping screw m the machine will be securely fixed to the table.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
(1) A machine for crushing or grinding meat and for similar purposes comprising
a casing formed with longitudinal grooves and a roller adapted to be rotated therein
the said roller being formed with grooves of the shape shewn whereby a grinding
or pulping action is produced upon the meat or other material substantially as set
forth.
(2) The manufacture and use of the improved machine for crushing or grinding
meat hereinbefore described with reference to the accompanying drawing.
Dated the 26th day of April 1880
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.