A COMBINED MIXING AND LIFTING APPARATUS FOR LIME, CEMENT MORTAR, CONCRETE AND OTHER MATERIALS
Year: 1884

page_text: I CARL SCHLICKEYSEN of Berlin Prussia German Empire Engineer do hereby
declare the nature of said invention for "A COMBINED MIXING AND LIFTING
APPARATUS FOR LIME, CEMENT MORTAR, CONCRETE AND OTHER MATERIALS" to be
as follows:-
This apparatus or machine is intended for mixing sand, lime, cement or other
materials in one mixing vessel, then conveying the material automatically to
another mixing vessel and mixing it there with other substances especially gravel or
quartz, pieces of stone and water then conveying the material to one end of the
vessel where it is either allowed to drop out or is first raised to a higher level by
gutter elevator and then-discharged.
The first mixing trough is partly or wholly open at top; the materials such as
lime, sand, cement or other materials are thrown in at one end in a dry or wet
state and by means of the mixer arms on the revolving shaft well mixed and
simultaneously conveyed to the other end where it is let out by a slide valve
through an opening or by another slide valve through another opening or passage
conveyed into an adjoining mixing trough situated at a little lower level and into
which other materials such as gravel, pieces of stone, lime and water are charged.
All the materials are mixed by revolving mixer arms in this second trough and
simultaneously conveyed to the opposite end. This end is provided with a slide
valve and opening for discharging the mixed material and with another slide valve
and opening by which the material as required may be admitted to a continuously
working gutter elevator for raising the concrete or other made material to the required
height and discharging it there. An upper and a lower drum are arranged on two
slanting frames and are provided with two endless chains. On each two corre-
sponding chain links are fixed bottom plates with intervening narrow spaces end-
wise and are connected by canvas, leather, India rubber or other flexible fabric or
material so that no concrete can fall through the said spaces. The plates are provided.
with side walls which are fixed thereto and fit between or over the side walls on
the adjoining bottom plates thus forming a continuous or endless gutter. Across
each bottom plate there is a cross board which connects the side walls with the
bottom plates thus forming the gutter into divided spaces or buckets. The gutter
is somewhat wider than the opening in the second mixing trough from which it

page_text: rises. There is a shield below the endless gutter and fixed to the second mixing
trough for preventing the concrete from falling through instead of being taken up
by the cross boards in the gutter. As the aforesaid opening to the second, mixing
trough is open at top and wider than the biggest stones in the concrete, no jambing
of the concrete can take place and the mixing and lifting and discharging operations
are not interrupted. The bearings for the lower drum spindle have an adjusting
appliance for tightening the endless chain gutter as required. Guide rollers are
provided for guiding the endless chain gutter. There is an adjustable board near
the top of the elevator for directing the discharge of the concreté.
In mixing concrete it is of importance that the smaller particles be mixed as dry
as possible, then to add water so as to form an even grout, and then to mix the
latter with gravel, pieces of stone, lime or the like. These requirements are ful-
filled by my apparatus.
It is new to use for coarse concrete a mixing trough with knives or arms similar
to those for mixing clay, but this is only possible if means are provided whereby all
jambing of the pieces of stone and the knives and the trough walls is prevented as
well as every stopping up. For this purpose I form this mixing trough almost the
whole length with long narrow upper slots and the walls of the inlet hopper part
are tapering outwards about radially from the trough (and not tangential as with
the aforesaid first mixing trough and as usual), in order thus to prevent jambing
between the mixer arms and the trough walls. The knives or arms are also pro-
vided with steel edge pieces which have projecting points or wedges that come near
the trough walls. When worn these pieces may be replaced by new ones or be
knocked a little further out till they almost touch the walls. Also for the same
purpose at those places where the knives, pass I provide the inner walls of the
trough with strips of sheet steel rivetted on at one lower end and reaching up
to the hopper where they are provided with hinge pin to, which is connected a
knee lever and adjusting screw for drawing the band up round the knife ends
which thus scrape against it. These steel bands are only needed on the side
where. the knives rise, as there is no tendency to jamb on the other side and they
are cut off slanting in order that the knives may not jamb the pieces of stone here
but slide past the slanting edge.
Th

page_text: "
I, CARL SCHLICKEYSEN of Berlin Prussia German Empire Engineer do hereby.
declare the nature of said invention for "A COMBINED MIXING AND LIFTING.
APPARATUS FOR LIME, CEMENT MORTAR, CONCRETE AND OTHER MATERIALS
and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This apparatus or machine is intended for mixing sand, lime, cement or other
materials in one mixing vessel, then conveying the material automatically to
another mixing vessel and mixing it there with other substances especially gravel
or quartz pieces of stone and water then conveying the material to one end of the
vessel where it is either allowed to drop out or is first raised to a higher level by
gutter elevator and then discharged.
Figure 1 of the accompanying drawings is a transverse section on line A A,
Figure 2, which latter is a plan section, and Figure 3 a transverse section on
line B B Figure 2. Figure 4 is a part end view of the elevator to a larger scale
and Figure 5 a cross section through one side of same. Figure 6 is an enlarged
sectional detail view of one of the mixer arms in the second trough. Figure 7 is a
vertical cross section through the trough, and Figure 8 a part plan of mixer arms
therein.
The first mixing trough A is partly or wholly open at top; the materials such as
lime sand cement or other materials are thrown in at one end A¹ Figure 2 in a dry
or wet state and by means of the mixer arms A³ Figure 1 on the revolving shaft A²
well mixed and simultaneously conveyed in the well known manner to the other
end where it is let out by a slide valve through an opening A* or by another slide
valve through another opening or passage A5 conveyed into an adjoining mixing
trough B situated at a little lower level and into which other materials such as
gravel, pieces of stone, lime and water are charged.
All the materials are mixed by revolving mixer arms such as B B³ Figures 6, 7
and 8 in this second trough and simultaneously conveyed to the opposite end.
This end is provided with a slide valve and opening B' for discharging the mixed
material and with another slide valve and opening B' by which the material as
required may be admitted to a continuosly working gutter elevator for raising
the concrete or other made material to the required height and discharging it
there.
An upper and a lower drum C³ and C¹ respectively are arranged on two slanting
frames C and are provided with two endless chains D. On each two corresponding
chain links are fixed bottom plates D₁ see Figures 4 and 5 with intervening
narrow spaces end wise and connected by canvas, leather, India rubber or other
flexible fabric or material D° so that no concrete can fall through the said spaces..
The plates D' are provided with side and walls D2 which are fixed thereto and
fit between or over the side walls adjoining bottom plates thus forming a continuous
or endless gutter.
1
Across each bottom plate D' there is a cross board D³ which connects the side
walls D' with the bottom plates D¹ thus forming the gutter into divided spaces or
buckets. The gutter is somewhat wider than the opening B2 in the second mixing
trough from which it rises. There is a shield B³ Figure 3 below the endless gutter
and fixed to the second mixing trough B for preventing the concrete from falling
through instead of being taken up by the cross-board D³ in the gutter. As the

page_text: aforesaid opening B2 to the second mixing trough B is open at top and wider than
the biggest stones in the concrete, no jambing of the concrete can take place and
the mixing and lifting and discharging operations are not interrupted.
The bearings for the lower drum spindle have an adjusting appliance or screw C¹³
for tightening the endless chain gutter as required. Guide rollers C₁ are provided
for guiding the endless chain gutter. There is an adjustable board C³ near the top
of the elevator for directing the discharge of the concrété.
In mixing concrete it is of importance that the smaller particles be mixed as dry
as possible, then to add water so as to form an even grout, and then to mix the
latter with gravel, pieces of stone, lime or the like.
These requirements are fulfilled by my apparatus.
It is new to use for coarse concrete a mixing trough with knives or arms similar
to those for mixing clay, but this is only possible if means are provided whereby
all jambing of the pieces of stone and the knives and the trough walls is prevented
as well as every, stopping up..
19
1)
For this purpose I form this mixing trough B almost the whole length with long
narrow upper slots and the walls of the inlet hopper párt are tapering outwards
about radially from the trough (and not tangential as with the aforesaid first
mixing trough A and as usual) in order thus to prevent jambing between the mixer
arms and the trough walls. The knives or arms B are also as shown in
Figures 67 and 8 provided with steel edge pieces B5 which have projecting points
or wedges that come near the trough 'walls. When worn these pieces may be
replaced by new ones. or be knocked a little further out till they almost touch the
walls. Also for the same purpose at those places where the knives pass I provide
the inner walls of the trough with strips of sheet steel B' Figures 7 and 8 riveted
on at one lower end and reaching up to the hopper where they are provided with
hinge pin B' to which is connected a knee lever B and adjusting screw B³ for
drawing the band up round the knife ends which thus scrape against it.
+
These steel bands are only needed on the side where the knives rise, as there is
no tendency to jamb on the other side and they are cut off slanting at B6 in order
that the knives may not jamb the pieces of stone here but slide past the slanting
edge.
At the place opposite to the two outlet openings B1 B2 the mixer shaft is
provided with a double flap S for the purpose of ensuring that the mixture is led
more certainly towards those openings. This double flap S is not fixed stronger
than that it would eventually give way and turn on the shaft in case a heavy
obstruction such as a stone should be jambed between the flap and the wall of the
trough, when the obstruction had been removed it would again turn round with the
shaft and fulfil its purpose.
1:
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
!
First. Mixing troughs placed side by side provided with mixer arms and so
connected at one end that the first trough feeds the second with mixed product
which is then mixed with a fresh charge of material the whole being then
conveyed to the other or outlet end substantially as and for the purposes set forth.
Second. The construction of the mixing.troughs and especially constructing the
second trough with mixer arms provided with spur like projections and with upper
slot openings and with about radial upper hopper walls and with yielding parts all
for the purpose of preventing jambing substantially as set forth and as shown on
the accompanying drawings.
Third. Constructing mixing troughs with one or more endless chains, the links
of which have broad, bottom parts connected by. intermediate flexible pieces of
India rubber or the like and provided with upright sides passing inside and outside
each other consecutively and with cross walls forming buckets, the said links.being

page_text: supported on drums and frames the whole forming an elevator for lifting and
discharging the mixed materials the said trough being provided with a movable
flap below the elevator to prevent the material from dropping through substantially
as set forth.
Fourth. The combination of parts forming the improved combined mixing
elevating or discharging apparatus substantially as set forth.
Dated this First day of December 1884
BREWER & JENSEN,
Agents for the Applicant.