Improvements in Apparatus for Treating Animals' Carcases and Offal
Year: 1895

page_text: LO
Date of Application, 6th May, 1895
mplete Specification Left, 8th Jan 1896-Accepted 6th May, 1896
PROVISIONAL SPECIFICATION
Improvements in Apparatus for Treating Animals' Carcases
and Offal
I, HEINRICH CONRAD FRITZ OTIE of Lohmuhlenstrasse 59, Altona, Germany,
do hereby declare the nature of this invention to be as follows
This invention relites to apparatus, in which animal cacases and offal can be
worked up into fat, glue, manure, or other materials, that can be applied to
technical purposes
The apparatus which is shown in the accompanying diawing in longitudinal
section, consists of a cylindrical vessel preferably arranged in an incline position
and provided with a steam jacket a a drum sieve c, so supported in the former
vessel, as to be able to rotate within the same, and a crushing cylinder or roller d
which lies loose in the said drum Lo the outer suitice of said drum an
intermittent screw f of very considerable pitch is attached for a purpose hereinafter
mentioned The apparatus is provided further with a number of union-tubes of
which one, g, serves to admit steam into the steam-jacket, another h, to idmit
steam into the drum sieve, while the fetid gases rising during the process as well
as the used steam escape through third and the liquids as gravy, fat etc
through fourth k The apparatus is emptied by the man-hole 7 provided in the
cover of the vessel
2
As
escipe
After the drum c has been filled
The apparatus works in the following manner
through the openings m ard n, with the materials to be worked up, both the-e
openings me closed and, through the union g, steam is admitted into the steam-
Jacket, which is thus heated At the same time the valve in the union is opened
and the drum sieve is caused to slowly rotate This process is continued until all
the water contained in the materials is by the intense dry heat converted into
steam which has escaped through the tube toдcther with the ur contained within
the apparatus
Then the valve of the union is opened and steam enters the
drum-sieve, the valve of being for a time still left open n order to allow the air
to completely escape from the apparatu oon as it is suppo ed this is the
case the delivery-pipe is closed and the fat and other soluble substances are
liquefied by the steam passing through the flesh, and dip down through the
All this time the rotation of the
dium jacket into the lower part of the vessel b
dum continued thus preventing a compact mass from being formed as would
other wie hippen The steam having in this way acted for some time upon the
flesh, the steam-pipe is closed and the valve of k is opened, through which the
This
liquid collected in the vessel is forced out by the pressure of the steam
liquid having been completely diawn off, the valve k is again closed and tne
steam jacket heated a econd time in order to completely dry the loose fibres of the
flesh and the bones, the man-hole and the valve being at the same time opened
As the dryness increases
for the ahe of effecting a good circulation of the m
which then sifts through
the crushing-cylinder or roller & gunds the whole mass
the dium jacket in the shape of powder and is conveyed by the screw f through the
man-hole
2
The screw is as above mentioned, interrupted at some parts, the intervening
portions being placed farther back, in order to form pas ages for the liquids

page_text: collecting in the lower part of b during the first part of the process, and to avoid
conveying them to the front side of the vessel
Dated this 6th day of May 1895
of the applicant,
W LLOYD WISE,
46 Lincoln's Inn Fields, London, WC, Chartered Patent Agent
provements in Apparatus for Treating Animals' Carcases
and Offal
I, HEINRICH CONRAD FRITZ OTTE, of Lohmuhlenstrasse 59, Altona, Germany,
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
This invention relates to apparatus in which animals' carcases and offil can
be worked up into manure-powder, & fat & glue, without smell or injury to
health
The apparatus, which is hown in longitudinal section in the drawing filed with
my Provisional Specification, compuses a cylindrical vessel b preferably arranged in
an inclined po ition and provided with a steam-jacket a, a drum-sieve or perforated
cylinder c so supported in the vessel b as to be able to rotate therein, and a
crushing cylinder or roller d which lies loose in the drum c To the outer surface
of the said sieve an intermittent screw f of very considerable pitch is attached for
a purpose hereinafter mentioned The apparatus is further provided with a
number of union-tubes, of which one 9, serves to admit steam into the steam-
Jacket a, another h, to admit steam into the drum-sieve c while the fetid gases
rising during the process, as well as the spent steam in the vessel a escape through
a third union 2, and the liquids (gravy, fat, etc) e-cape through a fourth k
apparatus is emptied through a man-hole 7 piovided in the cover of the vessel
The apparatus works in the following manner
-
The
After the druin sieve c has been filled, through the openings m and n, with the
materials to be worl ed up, both these openings are closed and, through the tube g,
steam is admitted into the steam-jacket, which is thus heated At the same time
the valve in the tube is opened and the drum sieve is caused to slowly rotate
by means of the shaft upon which it is fixed and which is driven by a pulley and
belt
This process is continued until all the water contained in the material is, by
the intense diy heat, converted into steam and this steam has escaped through the
tube together with air contained within the apparatus Then the valve of the
tube is opened and steam enters the drum-steve c the valve of the tube z being for
a time still left open in order to allow the an to completely escape from the
apparatus As soon as it is supposed this is the case, the outlet-tube 2 is closed
and the fat and other soluble substances are liquefied by the steam passing through
the flesh, and drip down through the wall of the drum sieve c into the lower part
of the vessel b All this time the rotation of the drum steve c is continued, thus
preventing a compact mass from being formed, as would otherwise happen The
steam having in this way acted for some time upon the flesh, the steam tube is closed
and the valve of the tube k is opened, whereupon the liquid that has collected in
the vessel b is forced out through the list mentioned tube by the pressure of the
steam in the said vessel This liquid having been completely drawn off, the valve
of the tube k is again closed and the steam-jacket heated a second time in order to
completely dry the loose fibres of the flesh and the bones, the man-hole and the
valve of the tube being at the same time opened for the sake of effecting a good
circulation of the air through the vessel and drum sieve As the dryness increases,

page_text: the crushing cylinder or roller d grinds the whole mass, which then sifts through
the drum-sieve c in the shape of powder suitable for use as a manure and is
conveyed by the screw f through the man-hole /
The screw is, as above mentioned, interrupted at some parts, the intervening
portions being placed farther back, in order to form passages for the liquids
collecting in the lower part of the vessel 6 during the first part of the process, and
so avoid conveying them to the front end of the vessel
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
-
1 An apparatus for working up animal carcases and offal, comprising a
stationary vessel 6 provided with a steam-jacket a and a drum sieve c rotatably
supported within the vessel b and provided with a crushing cylinder or roller d
lying loose within it and on its surface a screw f adapted to convey to an outlet the
material ground to powder by the cylinder or roller d, substantially as hereinbefore
descrived
2 The improved apparatus for treating animals' carcases and offal, constructed,
arianged, and operating as herein before described with reference to and shown in
the drawings referred to