US783405A - Dividing apparatus for powders or the like. - Google Patents

Description

PATENTED FEB. 21, 1905.

. A. DARVAS.

DIVIDING APPARATUS FOR POWDERS OR THE LIKE.

I No. 783,405.

APPLICATION FILED- APR. 2. 1902.

2 SHEBTSSHEET 1.

No. 783,405. 7 PATENTED FEB. 21, 1905.

A. DARVAS.

DIVIDING APPARATUS FOR POWDERS OR THE LIKE.

APPLICATION FILED APR. 2, 1902.

2 SHEETS-SHEET 2.

UNTTED STATES Patented February 21,1905.

PATENT \FFTCE.

ALEXANDER DARVAS, OF BUDAPEST, AUSTRIA-HUNGARY.

DllllDlNG APPARATUS FOR POWDERS OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 783,405, dated February 21, 1905. Application filed April 2, 1902. Serial No. 101,125.

To all whom, it may concern:

Be it known that I, ALEXANDER DARVAS, physician. a subject of the King of Austria- Hungary, residing at Budapest, in the Kingdom of Austria-Hungary, have inventeda new and useful Dividing Apparatus for Powders or the Like, of which the following is a specilication.

The object of the present invention is to utilize the action of the centrifugal force for the uniform division of anydetermined quantity of powdery, granular, or similar masses into any determined number of equal portions. These .portions are placed in suitable compartments, bags, or the like. In order to insure the proper division of any weighed quantity of materials, it is preferable to employ a disk revolving at an even speed around its vertical axis and to conduct the mass as uniformly as possible in a stream to the disk outside its aXis in such a manner that the particles of the mass are taken along with and by the disk, spread by their centrifugal forces evenly over the surface, and delivered at the periphery of the disk to the proper number of suitably-arranged compartments, bags, and the like. It is essential that the stream should be conducted to the disk outside its axis, for if it were conducted to the disk at its center part of it would remain at the center and the remaining parts would be distributed unequally over the surface of the disk. It is also essential that the stream should be as uniform as possible, as otherwise the uniform division of the mass would not be possible.

A mode of construction of the dividing apparatus according to this my invention is illustrated in the accompanyingdrawings, in which- Figure l is an elevation of the apparatus, the disk being shown in section. Fig. 2 is a plan of the disk with the dividing device around its periphery, and Fig. 3 is a vertical central section of the same.

On the vertical shaft a is aflixed a horizontal disk 6, which is perfectly smooth on its upper surface. Above this disk a hopper 0 is arranged, the opening d of which is at a certain distance from the center of the disk 5. ()n the periphery of the disk 5 a series of compartments of any shape may be arranged. In the mode of execution shown at Fig. 2 an annular frame ff of a U-shaped cross-section is fastened on the lower external flange Z) of the disk beither by means of pins 7) in Fig. l or otherwise. This ring, U-shaped in cross-section, is divided into compartments of equal size by means of vertical partitionwalls resembling blades of knives and being arranged tangentially with respect to the circle in which the material impinges upon the disk, the compartments being open in the direction to the disk. The openings are provided with stiffening or reinforcing funnels h h, fitting exactly into said openings, the front apertures of said funnels being all of the same size. The object of the said funnels is to reinforce the apertures of the receivers, such as paper shells 0 c, the latter being first shoved upon the funnels and then after having been filled taken off from the same.

In operating the apparatus first the disk 7) is put into a quick but uniform rotation in a convenient mannerfor example, by the handerank .2 with the aid of its shaft .2, the two bottom Wheels 41 and w, the two gear-wheels wand y, and the shaft a. Then the'weighed quantity of the mass is placed in the hopper 0. During the revolution of the disk 6 the mass will be conducted at a certain speed and in a uniform stream determined by the area of the opening d of the hopper to the revolving disk. Owing to the eccentrical position of the hopper-opening d with regard to the disk I), the stream will fall on the disk at a place where the peripherical velocity of the latter is comparatively large. The consequence of this is that the particles of the material taken along with and by the disk 5 will be pushed forward by their centrifugal forces over the surface of the disk toward the periphery, where they are divided by the sheets g and collected in the paper bags 6. As the particles of the mass follow each other continually while falling down on the disk 6, the uniformity of their distribution over the surface of the disk will be insured. Since the dividing-sheets g of the compartments are at exactly equal distances from each other, it follows that all the paper bags 0 will receive equal quantities of (see Fig. 3)

the material divided. The disk 6 is stopped only after the last particles of the mass spread over the disk have left its periphery. Then the portions of the mass will be lodged in the bags.

The hopper c is preferably put into a uniform vibrating movement of any strength so as to avoid any disturbances or irregularities in the stream of the mass leaving the opening (Z of the hopper. The manner in which this may be done according to Fig. 1 will be explained later on. To further the uniformity of the stream, an additional hopper 71; may be employed for receiving the mass to be divided and conducting it to the hopper c. Preferably the hopper 7:; is subjected to rapidly-following vibrations by means of a serrated roller 0, striking with its teeth against the roller 71, mounted on the under side of the hopper. The roller 0 is put into rotation with the aid of the pulleys Z 1n n z, and laces. The hopper 70 is mountedv to rock on the end 3) of a rod 9 and bears by reason of its own weight with the roller z'against the furrows of thesaid roller 0. For adjusting the inclination of the hopper k with regard to the hopper c the rod 9 is slotted and guided by the pin is, engaging its Slot, while a two-armed lever r, turning around the pin it and connected pivotally with the lower end of the rod q, serves for raising or lowering the aXis p of the hopper It. The lower hopper 0 is assumed to be attached to elastic strips 0 and pivotally connected with the upper hopper 7:: by means of one or two rods 0. It will now be evident that in consequence of this the lower hopper 0 will partake in the vibrations of the upper hopper l).

The apparatus is specially suitable for the quick division of medicaments into a certain number of smaller quantities without weighing, since the division of a mass of small weight into minimal equal portions is attained by the apparatus with a far greater certainty than hitherto. This is the more important for poisonous medicaments. Obviously, however, the apparatus may also be employed for the division of tea, powder, dynamite, tobacco, &c.

Having now described my invention, what I desire to secure by Letters Patent of the United States is l. The combination with a horizontal disk, of means for rotating said disk, a first hopper for receiving a mass to be divided, means for adjusting said first hopper as to position and inclination, means for vibrating said first hopper to cause the mass contained thereinto flow out in a stream, a second hopper arranged eccentrically above said disk for receiving the stream from said first hopper, means for vibrating said second hopper to cause the stream of material to flow through an aperture on said disk, and a receiving device arranged around said disk for dividing the mass distributed over same substantially as set forth.

2. The combination with a horizontal disk, of means for rotating said'disk, a first hopper for receiving a mass to be divided, means for adjusting said lirst hopper as to position and inclination, means for vibrating said first hopper to cause the mass contained therein to flow out in a stream, a second hopper arranged ecceutrically above said disk for receiving the stream from said first hopper, means for vibrating said second hopper to cause the stream of material to flow through an aperture on said disk, and a series of compartments arranged around said disk for dividing the mass distributed over same substantially as set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ALEXANDER DARVAS.

itnesses ERNEST SzAsz, LoUIs VAND RF.

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