Improvements in Mixing, Stirring or Agitating Apparatus.
Year: 1898

page_text: Date of Application, 7th Nov., 1898-Accepted, 23rd Dec., 1898
COMPLETE SPECIFICATION.
Improvements in Mixing, Stirring or Agitating Apparatus.
I, ALFRED BIEHLER, of Amalienstrasse, 57, Carlsruhe, in the Empire of
Germany, 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; -
The present invention relates to an apparatus for stirring or mixing doughy,
powdery and granular matters. The apparatus may be used therefore especially
for stirring paste for preparing confectionery, creams, sauces such as mayon-
naise or for mixing powders, salves, pomades, medicines, for whipping cream or
white of eggs or chocolate and finally for producing butter.
The annexed drawing shows a section through the apparatus. The apparatus
is characterized by the peculiar formation of the rotary wings or beaters 1, 2,
arranged in a vessel 4 of suitable material preferably of tinned sheet iron pro-
vided with a loose cover 3. Tinned sheet iron is the best material for the vessel
because it allows of mixing hot substances. The driving of the beaters 1, 2 is
effected by a driving mechanism mounted on the cover 3, consisting of the frame 5
carrying driving wheel 6 and two toothed wheels 7, 8 turning in opposite direc-
tions, the lower wheel 8 is joined to the frame 10 of the beater 2 by means of the
hollow shaft 9, whilst the upper wheel 7 is joined directly with the inner beater 1
by means of the shaft 11 passing through the hollow shaft 9. Instead of this
driving mechanism there may be used any other suitable one, it being essential
that the revolutions of the two beaters should be in contrary directions.
As shown in the drawing the two beaters 1 and 2 are so formed, that there
remains between their edges a free space 12 or zig zag as in the drawing allowing
the doughy, powdery or granular matters of the substance being stirred or mixed
to pass between the beaters while turning. The projecting points of the one
beater are bent backwards in reference to the recessed corners of the other in
order that even during the fastest rotation there is no pinching or bending of the
beaters by materials passing between them and on the other hand the resistance
of the doughy mass against the rotation is not so great, a part of it giving way
at the moment the edges of the beaters come near together.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim
is:
Stirring or mixing apparatus with wings or beaters rotating in opposite direc-
tions in a vessel, the projecting points of the one wing or beater being bent back-
wards relatively to the re-entering corners of the other wing so that a zig zag
intermediate space is formed between the wings at the moment of their passing
one another when they are driven by suitable machinery substantially as described
and illustrated and for the purposes set forth.
L
1000
HERBERT HADDAN & CO.,
Agents to Applicant, 18, Buckingham Street, Strand, W.C.,