US2572375A - Mixing attachment for high-speed machines for pulping foodstuffs, etc. - Google Patents

Description

Oct. 23, 1951 QERTL] MIXING ATTACHMENT FOR HIGH-SPEED MACHINES FOR PULPING FOODSTUFFS, ETC Filed July 26, 1947 Patented Oct. 23, 1951 MIXING ATTACHMENT" FUR HIGH-"SPEED MACHINES FOR PULPIN'GFOOD'S-T-UFFS,

ETC.

1 Traugott OertIi, Zurich, Switzerland Application July 26, 1947, "Serial 'No'. 763,945

n In Switzerland 'Januaryi23, 1946 Section 1, Public Law 69.0,,h1 1gust i3, Patent expires J ari'u'ar'y 23, 1966 i can. (01. 259-168 For pulping fruits, vegetables, nuts and other articles of foods machines with rotating cutters are used which develop a speed of about 12,000 revolutions per minute. There are certain chemical and natural products such as cream, white of egg, etc. which can be processed only by whipping. A drawback of the high-speed machines hitherto used was that they could not be employed for this purpose.

The present invention relates to an attachment for high-speed machines for pulping foodstuffs, etc. by means of which cream etc. can be beaten or whipped.

The attachment according to the invention is distinguished by a fixture incorporating a whipping and beating unit and a reduction gear. The fixture is designed in such a way that it can be attached to a high-speed driving unit without any modification of the latter and enables beating and whipping to be carried out at a reduced, normal rotative speed despite the high-speed drive.

In the enclosed drawing a constructional embodiment of the invention is exemplified:

The figure is a front-view of the high-speed machine and a section of the attachment arranged on it.

On the drawing, the reference numeral I designates the high-speed driving unit which is designed in a manner similar to that described in Swiss Patent No. 236,730 and serves for producing homogeneous mixtures. Its driving shaft turns at a speed of about 12,000 R. P. M. The driving unit is used for pulping foodstuffs, etc. Instead of the known glass fixture, a fixture is arranged which consists of a bowl-shaped receptacle or vessel 2 diverging upwards and open at the top and a hollow base chamber 3. The vessel 2 and the base 3 are rigidly connected to each other by screws which are not shown. To this end the vessel 2 is die-cast in aluminum and is highly polished on the outside. 4 designates an axial shaft bearing of the vessel 2 which projects above the latter and through which the driving axle 5 passes. At the upper end of the driving axle 5, which has a polygonal head 6, the double-bladed agitator I is fixed. The agitator I has a bridge 8 which projects beyond the upper edge of the vessel 2 and carries a bush 9 provided with a po lygonal cavity Hi, fitting the polygonal head .6 which engages therein. The blades 1' and 'I" of the agitator 1 are of different design with a view to increasing the whipping or beating efiect. In the blade 1 the ribs 64 are horizontal whereas in the blade 1" the ribs 64 are vertical.

In the cavity 20 of the base 3 the reduction gear H is arranged, which consists of interengaging spindles and compound gears. In the bottom of the base 3 is fitted a rotary member or sleeve I3 provided with a polygonal hole l2 connected to the driving spindle M. The upper end of the spindle I4 has a pin l5 of smaller diameter which engages as reciprocal guide in the cylindrical guide IS in the collar I! at the lower end of the driving axle 5. The collar I! is provided with the toothed rim l8 and this forms part of the reduction gear. The high-speed main driving shaft [9 engages in the polygonal hole 12 of the rotary sleeve l3. The driving shaft I9 is connected to the driving motor, which is not specified. The driving shaft [9 is operationally connected to the driving shaft 5 through the parts ll, [4 and I8 and the interposed reduction gear reduces the speed of, say 12,000 R. P. M. in the main driving shaft [9 to 250 in the driving axle 5.

The attachment described permits of beating and whipping cream, white of egg, etc. at normal speed with a high-speed chopping machine. The fixture frame can easily be dismounted together with the agitator vane, whereupon the pulp or liquid processed can be removed without difliculty. The vessel 2 normally holds 1 litre, but a smaller or greater capacity can, of course, be provided for.

The agitator may, as is known, be arranged eccentrically or in a slanting position, so that the whipping or beating units do not turn in a circle or in the horizontal plane.

The vessel 2 of the base 3 and the agitator are specially die-cast in aluminium, which makes the attachment relatively light in weight. Furthermore, it is corrosion-resistant and non-poisonous in contact with all types of foodstuff and imparts no unpleasant taste to the products processed. The agitator may, of course, be designed with whipping whisks or forks, etc. instead of blades.

While the form of embodiment of the invention as herein disclosed, constitutes a preferred form, it is to be understood that some changes may be made in the arrangement, construction and combination of the various parts of my invention, and it is my intention to cover by my claim such changes as may reasonably be included within the scope thereof.

I claim as my invention:

A whipping and agitating unit for attachment to a high-speed driving base, said unit comprising a bowl-like receptacle having an annularly channeled bottom wall and an upstanding cenwith the upper end of the axle extending above said guide and the lower end thereof extending below the bottom wall of the receptacle, an agitator element having a cross bridge at its upper end interfittingly engaged with the upper end of the driving axle and disposed above theupper edge of the bowl, said agitator element having paddle portions depending from the cross bridge into the receptacle with the lower ends of the paddle portions conforming with the arcuate bottom wall of the receptacle and in close proximity thereto, a housing attached to the bottom of the receptacle and speed reduction gearing in the housing forming communication between the axle and driving base.

TRAUGOTT OERTLI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1 1,182,752 Campbell May 9, 1916 1,602,060 White Oct. 5, 1926 1,823,314 Brewer Sept. 15, 1931 1,985,604 Fitzgerald Dec. 25, 1934 2,028,595 Flegel Jan. 21, 1936 2,109,501 Osius Mar. 1, 1938 Piper Sept; 3, 1940

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