US1574104A - Agitating device - Google Patents

Description

J. MILES Adrrmme DEVIGE Filed April 14, 1923 Patented Feb. 23, 1926.

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' AGITAIINGZDEVICE. I

Application filed April 14, 1923. Serial Noi 681L009. i I

To all whom it may concern:

Be it known that I, J AMESMILES, a citizen of the United States, residing at Los Angeles, in the county of Los Angelesand 5 Stateof California, have invented a new and useful Agitating Device, of which the following is a specification. V

This invention relates to an agitating device which is intended to be especially use- 111 for mixing paint or any other substance held in an open receptacle. Paint which has stood for some time in areceptacle usually becomes more or less solid or pasty at the bottom, and it is the common practice to mix the paint under such conditions with a stick or' a similar. implement, This gives unsatisfactory results. It has been attempted to use a device with blades for:this

purpose, and in such use it is necessary for the lowest blade to rest upon the bottom of the vessel containing'the paint; and unless the device is held androtated with its axis nearly vertical, the. lowest blade vwill not maintain contact with-the bottom of the vessol, and the device, therefore,'o crates inetficiently. The general object o thisinvention is to provide an agitating device of sine ple construction which will'overcomethese 'difiiculties and which is constructed in such a way that the axis of rotation of the device need not be held exactly vertical; that is to say, my object is. to provide a device of this kind which will operate effectively in spite of the fact that the axis of rotation may be considerably inclined from the vertical line.

A further object of the invention is to provide a device. of this kind with simple means for effecting the rotation. Further objects of the invention will appear hereinafter.

The invention consists in the novel parts and combination of parts to be described liereinafteigall of which contribute to produce an eflicient imitating device.

15 ..A preterredem odiment of the invention is described in the following specification while the broad scope of the invention is pointedout in the appended claims. 1

In the drawing:

Figure 1 is a side elevation ot an agitating device embodying my invention and illustrating a brace towrotating lfiiwlthiiiifl e1 chuck broken away and illustrated in crossseetion; thisview also indicatesthe r in which the shaft ot'the. agitatorrmavbe held in an inclined positionxandthef'flpited lines indicate the outlineofstha'paintsreceiior:

. tacle.

Figure 2isalsoa side elevatinmebutishow} ing the agitator provided with permangntly attached means f or rotating iti t x j FigureB is a ewsimilar ,to ures 1. and as 2, but showing another form eiithegrotating Figure 4 is the shaft of the device neaniitsdewentend, but upon an enlargerl.scale 113 m 4111 In practicing J the invention ,1 w n-oxide: 18 haft which isdevoidoft ne c anical guith' ing means, butproVided' ithimeanB attire upper endto be seized in ones hands; operat-. ing to hold the shaft. substantiallyi iupright and enable vit to berotated onaitsaiisonion a vertical axis parallel with film-axi 10$ iillle shaft. Intho embodiment illustratedin v1*igure 1, 'I rovide a,vertical.,shat lathe lower end 0 [which isbluntnsonas not-$0 at penetrate i he bottom oiv'a metallic telepla-cle, and provided with one or; moreblades the lowermost blade 2 ismovably attached 80, to the lower end of the shaft and: preferably simply by means ofa pivot'3 which. I 'ts 111 the :tree pivotal movement of thei'b aile fon the shaft; that is to say, thetaxis oi the pivot is. transverse or at rightlangles} to the axis of the shaft 1. AbQVQqthllSylOOBQ blade 2, I provide other blades, or simplymnpther :9: blade such as the blade 4, which'itdesii'ed may be fixed to the-shatt so' -as to extend at right angles-thereto; Howeveay Ii pretax-etc connectthis blade 4 also by meansofe ivot pin 5 and I prefer to mount this'bla etso that when gitswings on its-pivot it;willswing-.

in a plane transverse to or at right ang to the plane in which the blade 2 swings;;- ;n '95 other words, blade 4- is disposed in}! plane :azubstantially at right anglcsgtoitheiblade 2.

"lhese blades are attached at theirmiddle oints, that is to"say,--at. their, center of for example. I may simply provide the upper end of the shaft 1 with a tang (5 constructed to fit into the chuck T of an ordinary brace 8 such as used by carpenters to operate an anger. This brace has a crank 9 with agrip ltl't'or rotating the shaft, and is provided'at its upper end with a-swivel-head 11, the axis of rotation of which is substantially in line with the axisottho shaft 1.

In the embodiment of the invention shown in Figure 2 the brat-e portion 12 of the device is constructed as an integral part of it, that is to say. the upper end of the shaft is merely bent to form a crank 1 and is provided with a swivel-head 15.

In the embodiment of the invention shown in Figure 3, I provide a single crank-arm 16 which is formed by bending over the upper end ot' the shaft. and I provide a swivel grip 17 just below this rranlcarm. The outer portion of the crank has an upward exten sion or wrist pin" 18 the upper end oi whiehcarries a swivel-head it).

The lower ends of the agitators shown in Figures 2 and 3 may be comtrueted in sub stantially the same manner as that illustrated in Figure 1. In using the agitator, it is. placed with its shaftin an upright. position so that the lowermost blade 2 rests upon the bottom 20 otthe paint receptacle, the outline of which is indicated by the dotted lines 21 in-Figure 1. The-shaft is then rotated, and in rotating it, it is unnecessary to maintain it in a true vertical position, that ist'o say, t-heshaft could beheld in an inclinedpositi'on such as that indicated by the dotted lines 22. -When held in aninclined position and rotated, it will be evident that the bottom blade 2 will'rotate with the shaft as it rotates and at the same time it will rotatQ-on the axis of its pivot 3 so as to maintain itself substantially in engagement with the-bottom of-the receptacle.

In using the agitator when constructed as illustrated in Figure 3, if desired the hand which holds the grip 17 may be held stationary and the crank 16 revolved about it. This will give the same character of movem to-thefoot of the agitator as occurs in embodiment shown in Figure-L But, if

desired, theagitator may beoperated by sei'zihgthe hand grip 17' and the swivel head 19* and. thenmovin eachof these parts through a; small ciro e so that the real axis of'rotation of the device will become a displhcedvert/ic-al line suchas the line 23 disposed between the shaft body and the wrist 18 This will give the foot of the agitator a sweeping movement on the bottom of'the receptacle and will increase the range of movement of the blades. At the same time, it will be evident that the blades will rotate as they move around in their circles or forbits and in case the-body of the shaft 115 not held in atrue vertical position the lowermost blade 24 of the device will constantly maintain itself in substantial engagement with the bottom of the receptacle.

By reason of the fact that the device has more than one blade, and also due to the fact that the blades are pivoted atzt heir middle points and in ditierent transverseplanes with respect to each other, they cooperate to maintain the lower end of the shaft in a more or less central position in the receptacle. \Vhore a. device of this kind, but with a single blade at. its lower end is used without any guiding means, the ends of the blade tend to hold themselves against the side of the receptacle so that as rotation takes place, the blade simply skates around-against the inner face ofthe wall-of the receptacle. But with my construction, the end of: the cross blade would engage the wall of thereeeptaclo and prevent this.

It desired, the blades may have a slight pitch, giving them the effect of impellers to produce a slight upward movement of the paint from the bottom.

It is understood that the embodiment of the invention described herein is only one of'the many embodiments this invention may take and I donot wishto-be= limited in the practico'of my invention-non i'rrmy claim to the partioularembedimenb set forth;

What I claim is 1. An agitating device for-mining paints or the likein an open metallic receptacle, comprising ashaft ltaving a-blnntl lower end adapted to engage without penetrating the bottom of: the receptacle, and havingmeans at its upper end for rotating it on ll'S axis, andoperat'ing, when held in ones hands, to hold the shaft substantially upright, said shaft having a plurality-oftransverse blades attached at theirmiddle points to its lower end, said blades beingidisposed indifferent transverseplanes operating to maintain the shaftin a substantially centml position as it is rotated in the receptacle, the-lowermost blade-being looselymounted on the'shett, and operating to tilt: with respect to the shaft, and maintain itsel'f 'in enagement'with the bottom of the paint'reeeptaclein anyupf for connection when the shaft is held' a'nd' r0-' tated in a position inclined to the plane-of the bottom of the receptacle, so as to mainsaid blades cooperating to maintain the tain itself substantially in engagement with lower end of the shaft in a more or less centhe bottom of the receptacle during the entral position in the receptacle.

tire revolution of the shaft, and another Signed at Los Angeles, California, this 5 blade pivotally secured to the shaft above 5th day of April 1923. I v

the first named blade and dis used in a plane transverse to the plane of t e lower blade, JAMES MILES.

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