Патент USA US2131662код для вставки
Sept. 27, .1938. ‘E. D. HOLMES 1 2,131,662 APPARATUS FOR CONDITIONING AND DISPENSING LACQUERS. ENAMELS. AND THE LIKE Filed March '7, 1958 2 Sheets-Sheet 1 Sept. 27, 1938. E. D. HOLMES 2,131,662 APPARATUS FOR CONDITIONING -AND DISPENSING LAOQUERS, ENAMELS, AND THE LIKE Filed March 7, 1938 N 2 Sheets-Sheet 2 2,131,662 Patented Sept. 27, 1938 UNITED STATE 5 PATENT OFFICE 2,131,662 APPARATUS FOR CONDITIONING AND ms PENSING mcQUEns, nmmms, AND. 'rnn LIKE Edward D. Holmes, Chicago, 111., assignor to Sherwin-Williams Company, Cleveland, Ohio, a corporation of Ohio Application March ‘I, 1938, Serial No. ‘194,385 6 Claim. (Cl. 259-51) ‘This invention relates to the art of handling ceptacle into which the paint is poured from the paints, lacquers, enamels, and the like for com commercial can has also been used to a limited mercial use, and its purpose is to provide an ap extent, but such practice is unsatisfactory for two reasons. First, when the paint is poured from the paratus by which a vsubstantial number of dif 6 ferent colors or kinds of paints and the like may be maintained in condition for immediate use and by which such paints may be delivered with the minimum loss of material and of time ‘consumed. In large paint shops where commercial paint 10 ing is carried on on a large scale, such, for in; stance, as in automobile body painting depart-‘ ments, different kinds or colors of paints are re quired at frequent intervals. The term “paint”, as herein employed, is used in a generic sense to 15 include not only those pigment mixtures which are commercially known as paints, but also lac quers, enamels, and the like, and in fact, any pigment bearing liquid customarily used for sur- > face coating purposes. 20 Paints of this character are ‘usually marketed in containers varying in size from a half pint to ?ve gallons, and so far as the principle of my invention is concerned, the size of the container is immaterial. Large users of paints, however, for the purpose with which my invention is con cerned, obtainvtheir requirements in one gallon sizes of the rectangular or what is commonly known as square can type. For illustrative pur poses, therefore, this type of container has been 30 selected and herein disclosed in conjunction with my apparatus as exemplifying the principles in volved. commercial can into the mixing receptacle a con siderable amount of the pigment which has set tled to the bottom of the can is left in the can and wasted; and secondly, each time a change of color . is desired, the mixing receptacle must be thor oughly cleaned, thereby involving further loss of 10 material and additional loss ‘of time. The primary purpose of my present invention, therefore, is to provide an apparatus which will maintain a substantial ‘quantity of paint in the original commercial cans in a thoroughly agitated andmixed' condition ready for immediate use. Such an apparatus eliminates entirely the hand stirring heretofore commonly practiced and by, agitating, the paint in the original commercial cans the-loss of time and material involved in the 20 use of a mixing or agitating machine of the char-v acter above referred to is eliminated. Another purpose of my invention is to provide an apparatus which will enable the agitated and therefore adequately mixed paints of whatever color desired to be readily withdrawn from the commercial cans not only without the necessity of any hand stirring or agitation but also in such a way as to avoid slopping or spattering and loss of paint. - With this end in view, my invention contem plates, as a part of the apparatus, specially de The painter has a can or other receptacle from signed closures or stoppers adapted to replace the ' which he applies the paint either with a brush 35 or with a pneumatic applicator, and whenever closed and sealed, these closures being designed his receptacle requires replenishment he obtains additional paint from a can in which it is re ceived at the shop. Whether he opens a fresh caps by which the commercial cans are normally to prevent leakage from the cans and being pro vided with manually operable shut-oil’ valves by which the flow from the cans can be smoothly can or takes his supply from a partially used can, ‘ and abruptly cut off so as to obviate dripping. 40 it is necessary that the contents be thoroughly Furthermore, each closure has incorporated in its 40 agitated in order that the pigment be thoroughly construction a vent valve adapted to admit air into the highest point of the interior of the can as the paint is withdrawn, thereby facilitating a smooth, even ?ow of the paint from the can with 45 out the gurgling and resultant splashing which accompanies the pouring of a liquid from a closed mixed with the carrier so as to maintain a uni formity of color. It is well known, of course, that when paint stands or remains quiescent even for 45 a relatively short period of time, the pigment will settle under gravity to the bottom of the can leav ing the lighter liquid at the top, and consequently a thorough mixing is required before the can con-' tents can be withdrawn into the container used 50 by the painter. This mixing or agitating is cus tomarily done with a paddle or stirrer which is introduced into the can and by which the user stirs up the contents. Obviously, however, such stirring utilizes a great deal of the painter’s time. as A mechanical agitator embodying a mixing re inverted receptacle. Other objects and many of the inherent ad vantages of my invention should be readily ap preciated as the same becomes better understood by reference to the following description when considered in connection with the accompanying drawings. Referring to the drawings: ‘ 2 2,181,662 Fig. 1 is a side elevation of an apparatus con ' insure a snug clamping of the cans but without structed in accordance with my invention; injury. the clamping bars 26 are preferably Fig. 2 is substantially an end elevation, al equipped on their inner faces with strips of yield though, technically, a sectional view on the line able material such as sponge rubber or the like 2-2 of Fig. 1; ' indicated on the drawings by reference character Fig. 3 is a sectional view on the line 3--3,of ._ 29. After the upper row of cans has been loaded FigFig. 1; 4 is an enlarged fragmentary sectional Y. view of a portion of the upper can illustrated in onto the plate l6 and clamped in position, a half revolution is imparted to the can supporting as 10 Fig. 3; . Fig. 5 is a view similar to Fig. 4 showing a sembly to dispose the other face of the plate I6 upwardly for the reception of a similar number of cans which are loaded thereon and clamped in position in a similar manner. When completely modi?ed form of closure and vent, this view being taken on the line 5—5 of Fig. 6; and Fig. 6 is an elevation looking‘ toward ‘the right 15 .at Fig. 5. Referring now to the drawings more in detail, it will be observed that the machine comprises essentially a frame consisting of the end stand loaded, the apparatus illustrated carries twenty ?lled commercial cans of paint, each provided 15 with a closure member which prevents leakage. one-half the cans being faced in one direction and the other half in the opposite direction. The shaft I2 is connected through a reduction gear ing 3| and a manually controlled clutch 32 with a 20 driving motor 33 mounted upon a shelf 34 and controlled by a switch 35. The details of these mechanisms are immaterial, it being su?icient to state that the clutch 32 may be manipulated to connect the revolvable, can-carrying frame as ards 5 and 6 connected by suitable bracing ‘I and 20 provided with a shelf 8 extending longitudinally of the frame, forwardly of the center thereof, and located to support a painter’s can or receptacle 9 in position to receive a supply of paint from any of the cans contained in the machine. Shafts II and I2 journalled in bearings l3 and M respectively carried by the frame structure are rigidly connected with the end pieces l5 of a sup porting frame structure comprising the center rlate I5 and the side plates l1 and I8. all rigidly 30 connected together and to the shafts H and I2 so 25 as to revolve asaunit with the shafts. sembly with the motor 33 and to disconnect it therefrom at will, and the speed reduction gear train mechanism being adapted to reduce the speed of shaft I2 relatively to the motor speed so that when the motor is running at normal speed, 80 the cans w'll be revolved about the axis of shafts This revolving frame is adapted to carry 'a plurality H and I2 at the proper speed to cause the con- _ of commercial cans here illustrated as being one gallon square cans l8 and the machine is shown 35 as of a capacity to carry twenty of such cans. Each of these commercial cans comprises, as best shown in Figs. 3 and 4. an outwardly pro tents of the cans to be churned and agitated so as to produce a thorough mixing of such con tents and a uniform dispersion and intermingling of the paint pigments with the liquid carrier therefor in each pan. The apparatus may be operated continuously at very slight expense and is adapted to maintain in a thoroughly agitated and mixed condition ready for immediate use truding neck l9 terminating in a ?ared mouth 2|, which, when the ?‘led can is shipped from the paint factory, is closed and sealed by a cap or cover applied to and fastened over the mouth. This cover is removed from each of the cans twenty more or less cans of paint of various colors or characters. which is to be placed in the machineand is re placed by a closure forming part of my apparatus 45 and which will later be explained more in detail All or any desired portion of the contents of any of the cans in the apparatus may be with drawn for immediate use at any time through its closure member, the details of which will now be but at present may be said to consist of a hollow plug portion 22 adapted to enter the ?ared mouth of the can and snugly ?t the interior of the neck ' described. Referring particularly‘ to Fig. 4, it will be seen that body 25 of the closure member is hollow and provided at its outer end with a port 36 60 through whichv the can contents may be dis charged. The outer face of the body is machined ?at, and a cooperating valve member 31 rotatably mounted upon a stud bolt 38 and urged against the outer face of the body 25 by a coil expansion spring 39 is equipped with a notch I I providing a so as to act as a stopper and preclude leakage 50 from the mouth. The closure includes a ?ange portion 23 projecting radially beyond the walls of the neck l9, and this ?ange is adapted to seat behind the upper portion of side plate I‘! viewing Fig. 3 by which accidental dislodgment of the 55 closure from the can is precluded when the can is positioned, as shown, between the plates l1 and I8. The plain portion of each of these plates port adapted to register with port 36, thereby af engages the bottoms of a series of cans, as shown, while the tops of said cans lie back of the opposed fording a discharge opening from the can. The valve is operated by a handle 42, and when closed‘ as shown in Fig. 3. the sharp edges of the notch 4| moving ‘across the end, of port 36 will cut off the ?ow abruptly and smoothly so that no drip ping of the paint after the valve is closed can 60 portion of the other plate which is provided with arcuate notches 24 to permit the projection therefor of the body portions 25 of the closure members. It will thus be apparent that when a series ofcans are placed upon the plate l6, as 65 shown, they are supported thereby in horizontal position and are held against longitudinal dis placement by the plates l1 and I8, the notch por tions of which also hold the closures against acci dental displacement from the can mouths. The cans are then locked in this position by 70 holding or looking bars 26 extending longitudi nally of the machine and held in clamping rela tion with the loaded cans by means of posts 21 equipped with wing nuts or other fastening de vices adapted to hold the bars in position, ‘To occur. " . - In order to preclude gurgling and splashing of the can‘contents as it is discharged from the valve and to insure a smooth and even ?ow when the valve is open, I have made provision for venting the‘can which will now be explained. _ Upon the inner face of each closure I have 70 mounted a tube 43 extending inwardly'and up wardly to the upper corner of the can when it is in pouring position, as indicated in dotted lines in Fig. 2. In such position, the mouth of the can is in its lowest position so that the con 76 2,131,662 tents will ?ow freely therefrom and the vented corner into which the tube 43 extends is the highest portion of the can. Within this tube there is disposed a valve stem 44 carrying at its inner end a valve 45 adapted to close the inner end of the tube, as illustrated in Fig. 4, under the influence of a spring 46 surrounding that end of the stem which projects through and out side the flange of the closure. A nut or other 10 form of abutment 41 is located upon the end of stem 44 against which the spring 46 is biased to hold the valve 45 in closed position. During the agitation, therefore, the tube 63 is closed so that no paint‘ may enter therein. When with 15 drawal of the contents of a can is desired, the clutch 32 is thrown out, and the can-carrying frame is brought to rest at the position shown in dotted lines in Fig. 2, as previously explained, whereupon a receptacle 9 is disposed beneath the 20 valve of the can from which the withdrawal is to be made, the valve is opened, and the stem 44 is ing positioned reversely with respect to the tops of the cans in the other series, closures for the tops of the cans for both series, means for lock ing said cans and closures in said holders, and 10 means for rotating said frame to simultaneously condition the contents of all of said cans. 2. In an apparatus of the character described, the combination of a holding frame constructed to receive a plurality of oppositely disposed series 15 of commercial paint cans, closures for said cans, means for securing a' plurality of series of cans and closures in said frame, the cans in one series being reversed endwise with respect to the cans in the other series, means for rotating said frame 20 to agitate the contents of said cans, and means pressed inwardly to open valve 45, thereby vent carried by said closures and extending above ing the can so as to permit a uniform and even the liquid levels in the cans when disposed in pouring position whereby said cans may be vented to facilitate the dispensing of the contents 25 therefrom. 3. In an apparatus of the character described, ?ow of contents outwardly through port 36. 25 When the desired amount has been withdrawn, stem 44 may be released and valve 3'! closed, thereby abruptly shutting off the. ?ow without splashing or dripping. the combination of a frame comprising a cen tral plate, means for locking a plurality of cans against opposite faces of said plate, means for 30 rotating said plate about a central, horizontal , axis to agitate the contents of said cans, a clo-. sure for the open end of each can including a manually operable shut-oil.’ valve' and a vent ing ‘device for each-closure comprising a tube ex 35 tending above the liquid level in a can when in In Figs. 5 and 6 I have illustrated a modi 30 ?ed form of closure and vent in which the body 48 of the vent is provided witha pouring port 49 and also with a ventI port 5! in proximity to the pouring port so that both ports will be closed when the valve 52 is moved to the closed position 35 indicated in dotted lines in Figs. 5 and 6. The open position of the valve which permits simul taneous pouring and venting is illustrated in full lines in Fig. 6. The vent tube 53, in this in stance, extends to the uppermost remote corner of the can, or, in other words, to approximately the same position in the can as the tube 43, shown in Fig. 3. Should some of the paint enter the tube 53 through its open inner end during the agitation of the can contents, such paint will flow out through the port 5| as soon as the valve 52 is opened. From the foregoing, it will be manifest that I have provided an apparatus by which a num ber of cans of paint may be simultaneously con ditioned, that is, rendered homogeneous through out and maintained in that condition for im mediate use when desired without the necessity of further mixing or agitation. In addition, my invention provides for dispensing from the ap 55 paratus any desired quantity of the conditioned contents of any selected can without spattering or splashing the same and also insures a clean cut oif of the stream when the desired quantity has been dispensed so that loss of paint by dripping ‘is obviated. The apparatus substantially elimi 3 a horizontally disposed, central plate and a side plate along each longitudinal edge of said cen tral plate and extending beyond each face of said central plate to provide a pair of oppositely dis posed holders, each adapted to receive a series of . paint cans, the tops of the cans invone series be pouring position, and a valve closing the inner end of said tube and operable from outside the closure to admit air through the tube to the in terior of the can. , ' 40 4. In an apparatus of the character described, the combination of a rotatable frame structure, means for clamping a plurality of cans in said structure, means for rotating the structure to agitate the contents of the cans, a closure for 45 each can including va manually operable cut-oil’ valve, and means carried by each closure for venting the can, saidlast mentioned means com prising atube extending from the closure to a remote corner of the can, a stern extending through the closure and tube, a valve carried 50 by the inner end of said stem to close the inner end of the tube and a spring for yieldinglv holding said valve in closed position, 5. In an apparatus of the character. described, 55 the combination of a frame rotatable about a horizontal axis and adapted to carry a plurality of receptacles, a closure for each of said recep tacles provided with a dispensing port, means on the frame for holding said closures in closing 60 nates loss of the painter’s time heretofore oc relation to said receptacles, a venting tube car casioned by the necessity for stirring or otherwise “ ried by each closure and extending into the re agitating the paint to condition it for use, and ceptacle associated therewith to a point above the also eliminates loss of paint which has hereto liquid level in such receptacle, the closure and. venting tube being detachable as a unit from the 85 receptacle, means for rotating said frame to agi after discontinuance of the pouring. tate the contents of the receptacles, and valve The structural details of the apparatus herein means carried by the closures for controlling said shown and described are illustrative merely and dispensing ports to enable the contents of the 70 are not intended in any manner to circumscrlbe . individual receptacles to be dispensed at will with the scope of my invention which is de?ned in out the removal of the receptacles from the frame the following claims. and for controlling the vent tubes to facilitate I claim: such dispensing. 1. In an apparatus of the character described, 6. In an apparatus of the character described, 75 the combination of a rotatable frame including the combination of a frame constructed to carry ‘75 65 fore resulted from splashing and spattering .as it was poured from the can and from dripping 4.- ' ‘ 2,181,662 a series of commercial paint cans arranged side by side with their pouring ends faced in a com mon direction, means for rotating said frame to condition the contents of said cans, a closure for the mouth of each can, means carried by the frame for preventing displacement of said clo sures from the can mouths, each closure being provided with a pouring opening and a vent opening, a. tube carried by each closure and ex tending from each vent opening into the can to a point above the liquid level in the can when said can is disposed in pouring position, said vent tubes being removable from the cans with the closures, and manually operable valves for closing 7 and opening the pouring and vent openings of said closures. ' ' EDWARD D. HOLMES.