Improvements in Apparatus for Carbonizing Shoddy and the like.
Year: 1891

page_text: Date of Application, 30th Apr., 1891
Complete Specification Left, 28th Jan., 1892-Accepted. 12th Mar.. 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Carbonizing Shoddy and the like.
I, ADOLF HOF of Dueren in the Empire of Germany Shoddy Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in apparatus for carbonizing shoddy and
the like and has for its object the special arrangement and application of an
evaporating vessel for the acid used in such process of carbonization.
In carbonizing apparatus now in use, or hitherto known the acid is conducted
over inclined plates made of fire clay, such plates being heated by a fire, or the
evaporation was effected in specially heated stationary cylinders, or the evaporating
cylinder was connected to a hollow shaft of the carbonization drum and the
evaporating vessel had but a very small diameter to that of the drum and was
heated by an open fire, and the introduction or feeding of the acid was effected
periodically by a spoon. The latter arrangement and construction was an improve-
ment upon others, but has its several inconveniences which it is desired to obviate
by this invention.
I construct my apparatus in one without a separate acid vessel or any special
heating apparatus.
To accomplish this I transfer the evaporating chamber directly into the drum,
or in a compartment of the same separated only by a perforated plate or wall from
the other room in the drum by this means the evaporation is effected in the drum
direct. And I obtain thereby a considerable larger evaporating surface and it is
unnecessary to strengthen the heating apparatus to such a high degree.
Upon the fore part of the drum and separated by the aforesaid perforated plate
or wall, or bottom plate, is situated the evaporation chamber which is heated or
receives the direct heat by the cap of the air heating chamber such heated air
being conducted and directed by an inclined wall above, the acid vessel is put in a
suitable holder, and has a pipe connected thereto (which may be controlled by a
valve or tap) to press or turn entering a funnel headed pipe which is curved and
extends centrally through the hollow shaft of the apparatus into the evaporating
chamber, the inner end of the tube is closed up, and a small opening is made on its
underside through which the acid flows down upon the interior circumference of
the evaporating chamber where it is speedily evaporated, "owing to the large
evaporating surface" and passes through perforations into the drum. The said
drum being rotated by suitable means from the other end.
By the direct introduction of the acid into the drum or into a compartment of
the same separated by the perforated wall from the other room a direct evaporation
of the acid is effected.
Dated this 28th dose of Anvil 1001
WILLIAM BESTWICK MAXFIELD,
19, Bowling Green Street, Leicester, England, Agent for the Applicant.
COMPLETE
SPECIFICATION.
Improvements in Apparatus for Carbonizing Shoddy and the like.
I, ADOLF HOF of Dueren in the Empire of Germany Shoddy Manufacturer 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 improvements in apparatus for carbonizing shoddy and

page_text: the like, and has for its object an improved arrangement and application of an
evaporating vessel for the acid used in such process of carbonization.
In carbonizing apparatus as hitherto constructed the acid is conducted over
inclined plates made of fire clay, such plates being heated by a fire, or the
evaporation is effected in specially heated stationary cylinders, or the evaporating
cylinder is connected to a hollow shaft of the carbonization drum and the
evaporating vessel has but a very small diameter compared to that of the drum
and is heated by an open fire, and the introduction or feeding of the acid is effected
periodically by a spoon. This latter arrangement which is an improvement upon
the older forms has several inconveniences which it is desired to obviate by this
invention.
To accomplish this I transfer the evaporating chamber directly into the drum, or
into a compartment of the same, separated only by a perforated plate or wall from
the other part of the drum; by this means the evaporation is effected in the drum
direct, obtaining thereby a considerably larger evaporating surface. Upon the fore
part of the drum, and separated by the aforesaid perforated plate or wall, is
situated the evaporation chamber which is heated by the air from the air heating
chamber, such heated air being directed onto the evaporating chamber by an inclined
wall or baffle plate. The acid vessel is put in a suitable holder and has a pipe
connected thereto (which may be controlled by a valve or tap to press or turn)
entering a funnel headed pipe which is curved and extends centrally through one
of the hollow trunnions of the apparatus, into the evaporating chamber; the inner
end of the tube is closed up and a small opening is made on its underside through
which the acid flows down upon the interior circumference of the evaporating
chamber, where it is speedily evaporated, owing to the large evaporating surface,
and passes through the perforations into the drum, the said drum being rotated by
suitable means from the other end.
Referring to the accompanying sheet of drawings.
Fig. 1 is a longitudinal section and
Fig. 2 a cross section on the line A B, Fig. 1, of my improved apparatus.
a is the drum separated by the perforated plate from the evaporating cylinder c,
the whole supported on trunnions.
The evaporating cylinder c is heated by the air coming from the hot air
chamber d, the air being deflected upon the cylinder by the baffle plate e.
The acid flows from the vesself through a tube g, having a tap by which the
flow can be regulated, into the funnel of another tube h, which passes through the
hollow trunnion into the evaporating cylinder. This tube h is closed at its end but
has a perforation i on its lower side which directs the acid to the bottom of the
evaporator, the acid being quickly evaporated and passing through the perforated
plate 6 into the drum a, the drum and the evaporator being rotated by any suitable
arrangement at the other end.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is,
In apparatus for carbonizing shoddy and the like, the combination of a drum, an
evaporating chamber attached to or forming part of the drum, and communicating
with it by a perforated plate, the whole revolving on hollow trunnions, and a tube
passing into the evaporator through which acid flows in a continuous manner,
substantially as described and shown.
Doted this 98th day of January 1809
RAYNER & Co.,
37, Chancery Lane, London, W.C., Agent for the Applicant.