US1531651A

US1531651A - Hand-operated medicinal powder mixing and grinding cylinder for druggists' use

Info

Publication number: US1531651A
Application number: US652981A
Authority: US
Inventors: Claude W Geiger
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-07-21
Filing date: 1923-07-21
Publication date: 1925-03-31
Anticipated expiration: 1942-03-31

Description

' March 31. 1925,. 1,531,651

C. W. GEIGER HAND OPERATED MEDICINAL POWDER MIXING AND GRINDING CYLINDER FOR DRUGGISTS USE Filed July 21, 1925 I "if- E I 6' I mm a jx; 4 i

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fizvenior."

Patented Mar. 31, 1925.

UNITED STATES 1,531,651 ATENTorr c CLAUDE W. GEIGER, OF "DENVER, COLORADO.

HAND-OPERATED MEDICINAL -PO.WDER MIXING.AND GRINDING CYLINDER FOR DRUGGISTS USE. i i

Application filed July 21, 1923. ..Seria1.No..;652,981

mixing and grinding ha-nd"operating cylinder that is adapted to quickly -mix and grind medicinal powders used to fill prescriptions and other purchases.

2 Second: To provide a mixing and grinding hand grasping and manipulating cylinder, by means of which a druggist can mix different kinds of medicinal powders into medicines, and also for grinding a powder or powders to a much finer mesh than they naturally occur in, as desired.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a perspective View of a hand operating powder mixing cylinder embodying my invention.

Fig. 2 is a longitudinal section through the center of the same, and

Fig. 3 illustrates a modification of the removable cap of the cylinder.

Similar letters refer to similar parts throughout the several views.

4 Referring to the drawings:

The numeral 1 designates a cylinder made of any suitable material, preferably a light weight material, like wood-fiber, celluloid, or hard rubber.

The cylinder represented in Figure 1 is a full size illustration of a size of cylinder best adapted to all around general usefor mixing and grinding powders, but a smaller size and also a larger size can be used for special work. The cylinder is preferably provided with an integral bottom 2,and

the inner face of the cylinder wall is inwardly curved adjacent the bottom of the cylinder, in order to merge with the bottom, and thus eliminate an, angular corner at the bottom of the eylificer, as clearly shown at 3. The cylinderislopenat its upper end, and an annular shoulder 1 is formed on theinner face of the cylinder in the wall near the open end thereof, by reducing the thickness of the cylinderwall as shownat'5, from itsopen end to the point 'where it is "desired toform the said shoul der't. "The cylinder is normally 'closedby acap or cover 6, the rim 7 *0f which is formed with an annular recess 8 which is adapted to receive the reduced end portion 5 'ofthe cylinder, the inner portion of the rim resting squarely upon-the shoulderd,

as shown; The inner face of "the rrim' :7 I o'fythe cap is-curved'to merge with the flat 'e'nd portion thereof, to elimina'te an angularcornerin ithe said cap, and when the cap is placed upon the cylinder, the cylinder presents an unbroken interior cylindricalsurf-ace, which merges at one end into the bottom, and at the other end into the cap, thus eliminating angular corners at each end of. the same, as Wlll be understood by reference to Figure 2. the cylinder are placedtwo or more metal Within balls 9, preferably steel balls, and these balls have a smooth polished surface, and are of a size which Will insure sufficient weight for the purpose intended. 'The radius of the curve whichmerges the side wall and the end walls of the cylinder may be either the same or slightly greater than that of the balls which are used, in order that the balls when rolled in the cylinder may engage every part of the surface of the same.

In Figure 3 I have shown a slight modification in the arrangement of the open end' of the cylinder and of the cap which fits over the same. In this arrangement the open end portion of the cylinder wall is reduced in thickness for a suitable distance, as shown at 10, to form a flat annular shoulder 11 in the outer surface of the said wall;

and a cap 12 is employed, the annular por- I tion of which is correspondingly reduced in thickness to form an annular shoulder 13 which rests squarely on the rim of the cylinder, while squarely upon the annular shoulder 11 of the cylinder. The end wall of this cap is also curved to merge into the cylinder wall, as in Figure 3, to avoid an angular corner.-

In practice, the mater al to. mixed, rouiid or pulverized is pieced iii the cyliin der and the cap is thefi pieced thereon.

the rim of the cap rests to roll rapidly around the cylinder and over the material therein, which will result in quickly mixing and pulverizing the said material to the required degree of fineness. It is understood that uniform angular v movement of the cylinder in a definite orbit could not accomplish the obiect of the invention for the reason that the balls would not or at least not rapidly travel over the surface of the cylinder. It is only by quick accelerations and retardations such as a personcan carry out by intuition conscious of its effects, that the intended grinding action can be carried out. The relative motion of the balls over the surface of the cylinder is indicated to the person through the vibrations communicated through the sense of touch and the absence of relative motion is indicated by the absence of such vibrations. This is a matter of observation and experience with which most persons are familiar and which can be quicklyacquired by practice. As there are no angular surfaces in the cylinder, the material to bemixed and pulverized is always subject to the action of the balls, and the mixing and pulverizing action is therefore 'quickly and efliciently accomplished. The improved device is designed for the same purposes as the Well known mortar and pestle commonly employed by druggists and chemists.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is: v r

A method of mixing medicinal powders, which consists in confining the ingredients to be mixed together with rolling bodies in a drum and moving the drum by hand at varying rates and in such directions as to impel by irregular centrifugal 3 action the bodies to rapidly roll over the innersurface of the dru I I In testimony whereof I afiix my signature 1n presence of two wltnesses.

I GLAUDEYJW. GEIGER. lVitnesses:

NETTIE L. Pom ELIZABETH SMITH. Y