Apparatus for Sifting and Mixing Thick Fluid Masses, such as Starch Solutions, and more particularly Printers' Ink.
Year: 1895

page_text: Date of Application, 7th Feb., 1895-Accepted, 6th Apr., 1895
COMPLETE SPECIFICATION.
Apparatus for Sifting and Mixing Thick Fluid Masses, such as
Starch Solutions, and more particularly Printers' Ink.
1, FRANZ SCHMIDT, Chemist, of 7 Prinz Albert Strasse, Rummelsburg,
Germany, do hereby declare the nature of my invention and in what manner the
same is performed to be particularly described and ascertained in and by the
following statement :―
The object of the present invention consists of a machine or apparatus for sifting
and simultaneously mixing thick fluid liquids, according to which a centrally
rotating brush is caused to throw the said mass or liquid outwards into the path of
other brushes rotating around the said central brush in the opposite direction and
having further a movement in the vertical plane.
The gearing for driving the various brushes is confined in a housing and motion
is imparted to the central brush and those lying around it by means of a rotating
diaphragm, whilst the up and down motion of the brushes which rotate around the
central brush is produced by means of an eccentric device mounted on the said
rotating diaphragm said eccentrics being driven by driving gears adapted to engage
in a crown of teeth fixed to the cover of the housing, the said parts co-operating as
hereinafter more particularly described.
And in order to make this present Specification more easily intelligible reference
is had to the accompanying drawings in which similar letters denote similar parts
throughout the several views:
Fig. 1 being a vertical section through the machine taken on the line -y of
Fig. 3,
Fig. 2 a similar vertical section taken along a line at right angles to the
line -y and
Fig. 3 a plan of the machine showing the upper housing cover removed for the
sake of greater clearness.
The housing a containing the gearing for driving the brushes, is mounted on the
columns. The said housing is provided with a cover c, above which is mounted
a worm wheel keyed to a central shaft, said worm wheel being driven by a worm d
mounted on a horizontal shaft as may be clearly seen at Fig. 2. This central
shaft is rigidly connected to a horizontal rotary diaphragm k by means of arms or
standards 9 g, said diaphragm being driven by means of the said shaft f. In one of
the said arms g is mounted a vertical spindle carrying two pinions and 2 of
which the former i engages in a gear rigidly attached to a downwardly projecting
sleeve of the stationary cover c of the housing a, whilst the latter meshes in a
gear keyed to the upper end of the spindle of the central brush A, said brush
being adapted to turn on its axis in the opposite direction to that of the
diaphragm k.
it
Supporting standards m m are mounted on the rotary diaphragm k near its
outward edges, said standards carrying the horizontal eccentric spindles n n having
eccentrics p, jointed to the vertical rods of the brushes B B which rotate
around the central brush A, said rods being guided in the lower parts of the
standards m m as shown at Figure 1. At the outer ends of the spindles n n are
provided pinions n' n¹ which engage in a crown of teeth o formed on the cover c of
the housing and extending downwards inside the said housing. Thus when the
standards m m and with them the eccentric spindles nn are rotated by the motion
of the diaphragm k the said spindles n will be driven by the engagement of their

page_text: pinions n n in the stationary crown o and the up and down motion of the said
brushes B B effected. Below an annular plate supporting the housing and lying
about in the same plane as the diaphragm k is attached a hopper shaped casing
said hopper being mounted in an angle ring carried by the brackets r r attached
to the columns b b, and having around its upper edge a circulating pipe ss for
water, when it is required to clean the apparatus. The lower part D of the
hopper q is a continuation of the upper part and is advantageously hinged thereto
as shown at Fig. 1 said lower part being provided with an angle ring to close onto
the ring. In the ring of the lower part is mounted a perforated plate t, which
serves as a support for a sieve of any desired mesh, which may be removed and
changed at will. The brushes A and B are advantageously made of metal so that
the same will not swell out when in contact with the mass under treatment, all
the said brushes being fixed in the lower ends of their respective spindles by
means of set screws engaging against their stems, as shown at the left hand side of
Fig. 1.
The device operates in the following manner :-
The mass to be treated is introduced into the hopper 9 through the inlets ww
and the shaft of the worm d is rotated by suitable means.
This sets the brush A
in rapid rotation about its axis, throwing the mass outwards by centrifugal force,
so that it comes into contact with the brushes B B. These latter rotate in the
opposite direction to the brush A and around the same, owing to the action of the
rotating diaphragm k and the gearing connecting them thereto, they also have a
vertical up and down movement as previously specified, so that the mass is
thoroughly mixed and simultaneously stamped down on to the sieve supported by
the perforated plate t.
If it is desired or necessary to clean the apparatus, the lower part D of the
hopper is opened and the sieve removed from the plate t and cleaned separately,
then water is let into the pipes and the brushes set in motion, so that they will
clean the hopper and by stamping on the plate t be cleaned themselves.
The apparatus may be made to the same model for any size as it is only necessary
to enlarge or diminish the hopper at the upper part and to make the annular
supporting plate for the housing a of a corresponding size.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is performed declare that what I
claim is :-
1. A machine for sifting and simultaneously mixing thick fluid masses, having a
central rotary brush A. to rotate above an interchangeable sieve, in a hopper q and
brushes B B to rotate around said central brush in the opposite direction to that of
the said central brush and means for imparting to the said brushes B B an up and
down motion and a lower part D hinged to the hopper in the manner and for the
purpose substantially as described.
2. In combination with the apparatus above claimed, a rotary diaphragm k,
having mounted thereon standards m m to guide the brush rods vv horizontal
eccentric spindles n n in said standards carrying pinions n¹ and a stationary crown
of teeth in which said pinions engage, eccentrics n' on said spindles jointed to said
brush rods and means for rotating said diaphragm and a central rotary brush
mounted in a line with the axis of the said diaphragm and driven by means of
suitable gearing from said diaphragm in the manner and for the purpose substantially
as described.
Dated this 7th dow & Wh
1002
BOULT & WADE,
Agents for the Applicant.