IMPROVEMENTS IN MINCING MACHINES
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Alexander Melville Clark at the
Office of the Commissioners of Patents on the 17th December 1883.
Communicated to him from abroad by the firm of Collin et Cie of Paris,
France.
ALEXANDER MELVILLE CLARK of the firm of A. M. and W. Clark of 53 Chancery
Lane in the County of Middlesex, Fellow of the Institute of Patent Agents,
"IMPROVEMENTS IN MINCING MACHINES "
[communicated to him from abroad by
the firm of Collin et Cie of Paris, France.]
This Invention relates to an apparatus by means of which meat and other
similar matters may be quickly minced or reduced to a fine and even pulp. Such
an apparatus will be found very serviceable especially for preparing alimentary
substances in a form acceptable to persons requiring substantial nourishment in an
easily assimilable condition.
The principle of the Invention will be readily understood by reference to the
accompanying drawings, in which Figures 1 and 2 represent in section and plan
the essential element of the apparatus. This consists of a plate a pierced with
holes b which are countersunk on the underside so as to form cutting edges on the
upper surface of the plate. The meat is pressed upon the upper face of this plate
and moved rapidly to and fro along it so that the meat is forced into the
perforations 6 and is minced by the cutting edges and falls through the holes in
the state of finely divided pulp. Any suitable means may be employed for holding
the meat against the plate during the operation, such for instance as a small
cylinder rising from a base having cheeks embracing the sides of the plate a and
thereby serving to guide the cylinder in its to and fro movement and furnished
with a plunger to force the meat down into the plate as fast as it is minced by
means of a pressing screw. c is a ring attached to one end of the plate a for
holding the same during the operation.
Figure 3 represents in longitudinal section a mincer in which the meat or
other substance is acted on by a pair of perforated plates such as above described
facing one another, between which the meat is placed. In this arrangement
the meat is held and supported by the lower plate which is stationary while
the upper plate is reciprocated and at same time is caused to press on the
meat or other substance as hereafter described, the meat being minced by
and passing out through both plates. In this apparatus a is the lower plate

page_text: carried by an arm d whose forward end is provided with cheeks c screwed
to forks e and whose rear end is also forked ate and bent upwards and carries
a joint pin fupon which the arm h of the upper plate is free to slide by means
of the elongated slot g on its tail end. j is a spring for separating the two
branches d and h which are brought together by the handle k. The handle k is
set on a lever which is pivoted at m in a slot n of the branch d and passes
through an opening o of the branch h between friction rollers p the arrangement
being such that the lever is caused to impart to and fro movement to the plate i
while the necessary pressure is exercised on the substance between the plates by
pressing on the handle k which slides freely down the lever . r is a cover plate,
beneath which slides the branch h pivoted to the axis f and carrying a friction
roller & running in a guide groove t. Figure 4 is a side view and figure 5 a
horizontal section of a modification wherein the perforated cutting plate is a disc a
mounted on a shaft c rotated by a crank d. Against the internal or cutting face of
the disc a is applied the end of a cylinder e fitted with a perforated plate g having
holes coned or countersunk in the opposite direction to those of the disc a.
disc a turns in contact with the plate g and the meat in the cylinder e is forced by
the piston through the holes of the plate g, and sliced off by the cutting edges of
the disc a
The
The piston rod h is attached to a cross head i sliding along a guide rod j
and attached to a nut k travelling on a screw threaded part 1 of the cutting disc
shaft c so that the meat is fed up automatically. The nut k is in halves jointed
together so that by unlocking it the piston may be readily drawn back for
introducing the meat into the cylinder. m is the frame of the machine.
Figures 6 and 7 represent side and end views of cutter plates formed with series
of parallel ribs or blades b having serrated edges c The blades b of the one plate
are opposite the spaces between those of the other plate so that by placing the meat
between the two plates, and imparting to and fro motion to one of them the meat
is rapidly minced or triturated.