Патент USA US2079991код для вставки
May 11, 1937. c. E. FARRINGTON ‘ 2,079,991 BUSHING FOR DRUMS Filed June 1, 1955 28 ' " .62 ,. CHARLES E. FARRINGTON @358“ +90% Patented May 11, 1937 UNITED STAES TEN? OFFIE 2,079,991 BUSHING FOR DRUMS Charles E. Farrington, Phoenixville, Pa. Application June 1, 1935, Serial No. 24,485 4 Claims. This invention relates to agitator drums and more particularly to a method and means for equipping ordinary drums with agitator devices for effectively stirring and mixing the contents a of the drums so equipped. Agitator-equipped drums for transporting paints and other such liquid or semi~liquid compounds are now well~known in the art and are quite generally employed. Such drums are disit} closed in my own prior Patents No. 1,336,830, (01. 285-50) standard drum for the reception of a stirrer bar without involving the necessity of removing the said head from the drum body nor the necessity of employing any relatively expensive or com CI plicated tools or equipment. A further object of the invention is the pro vision of members which are so operatively re lated to each other as to permit their ready se curernent to the drum head of a standard drum in such manner as to provide a hung hole as granted April 13, 1920, and No. 1,970,367, granted August 4, 1934:, from which it will be observed sembly in the said drumhead through which a stirrer bar may be inserted for operative dispo that the upper and lower heads thereof are respectively adapted to receive and maintain in sition within the drum, as well as to the side wall of the drum adjacent the bottom thereof to O 15 proper operating position therebetween an agitating device in the form of a stirrer bar of suitable design. It will be appreciated, of course, that the most expensive element of the agitatorequipped drum is the drum itself, the cost of _ provide a faucet opening, the said parts being of 1° such order that they may be operatively as sembled either upon the drumhead or upon the side wall of the drum without necessitating the removal of either drumhead from the drum body ‘~30 which to produce is quite a considerable item. These drums, which are generally of a 55-gallon capacity, are usually constructed entirely of sheet and without requiring any alteration or modi?- 20 cation thereof other than to provide in the upper head and side wall of the drumholes or apertures metal of sufficiently heavy gauge to adequately withstand the pressure of the contents thereof. of requisite diameter. Other objects of the invention and advantages ‘25 Moreover, the top and bottom drumheads are resulting therefrom, as well as economies effected 25 welded or otherwise so permanently secured to the side walls thereof that it is the general practice to prepare the drumheads for proper reception of the agitating device preliminarily and .50 prior to the operation of securing the drumheads thereby, will be apparent more fully hereinafter, it being understood that the invention consists. substantially in the combination, construction, location and relative arrangement of parts, as well as in the method of assembling the same, 30 all as is more fully described hereinafter, as is shown in the accompanying drawing, and as is ?nally pointed out in the appended claims. In the accompanying drawing, which il1us-. trates and exemplifies a preferred embodiment 35 of the present invention:-~ Figure 1 is a vertical sectional view of a stand ard drum reconditioned in accordance with the in position. I have found that there is available in the open market an exceedingly large number of secondhand or used ordinary drums which have never 35 been provided with agitator devices but which are nevertheless well adapted to be reconditioned to accommodate agitators of the type disclosed in my prior patents aforesaid. When so recon- ditioned and equipped with agitators, these 40 drums serve admirably as transport containers for paints and other liquid and semi-liquid compounds. When it is realized that these used drums may be purchased at a cost so far less than that of a new drum that even when reconditioned 45 to include agitator devices, the total cost of each reconditioned drum is materially less than the cost of producing a completely new agitator- present invention; Figure 2 is an enlarged diametrical sectional 40 view of the bunghole assembly as installed in the upper head of the reconditioned drum; Figure 3 is a plan view of one of the members of the bunghole; Figure 4 is a view showing the manner of pro- 45 jecting the said member through the apertured drumhead into operative position; equipped drum, it will be evident that a considerable saving is effected without any decrease in 50 the ef?ciency of operation of the reconditioned drum. To effect this saving is one of the principal objects of the present invention. Figure 5 is a view showing the several parts of _ the bunghole ?tting in the process of being oper atively assembled upon the apertured drumhead; 50 and Figure 6 is a view showing the several parts Among the further objects of the present in~ vention is to provide an exceedingly simple and effective method of adapting the upper head of a of the bunghole ?tting completely assembled and with the assembling tool still in position. Referring now more particularly to the draw- 55 2 2,079,991 ing, it will be observed that the present invention contemplates the reconditioning of a standard type drum ID to accommodate within the interior thereof an agitating device, preferably of the type designated by the reference numeral H. when the ring I8 is manipulated into the position shown in Figure 4. It will further be observed, as appears most clearly in Figures 3 and 4-, that the split ring mem~ ber E8 is of maximum radial dimension at the The drum which is so adapted to be reconditioned is of the more or less conventional type having the opposed upper and lower drumheads l2 and l2a point substantially diametrically opposite the free which are welded or otherwise permanently se cured to the side walls (217 of the drum. These drums are of the type such as are generally em ployed for transporting oil and other liquid or semi-liquid compounds and are usually char acterized in that they are provided with a bung tending ?ange 21. The central opening of the bushing is interiorly threaded, as at 28, to thread hole located in the side wall of the drum or in one edly receive the bunghole cap or closure mem ber. As appears most clearly in Figure 2, the bushing 19 is adapted to be threadedly connected or the other of the drumheads adjacent the to the split ring member 18 in such manner as to peripheral mar-gin thereof. In order to opera tively accommodate an agitating device in the form of a stirrer bar, like that designated by the 20 numeral l I in Figure 1, within the interior ‘of the drum, it is, of course necessary to provide coaxial bearings in the opposed drumheads I2 and Ho of the drum for respectively receiving the oppo site extremities of the stirrer bar which is de signed for rotation about the common vertical axis of the vertically spaced bearings. To this end, the upper head l2 .of the drum is centrally cut out to provide an opening [3 there in of a diameter suf?cient to permit the agitat ing device II to be freely projected therethrough into the interior of the drum. This agitating device H, which may be of any desired form, is, in the present exempli?cation of the invention, in the form of a relatively thin elongated ?at bar or blade the central portion M of which is radially offset from the coaxially opposed extremities I5 and I6 thereof. The upper extremity l5 of the stirrer bar is arranged for vertical projection through the opening I3 of the upper drumhead I l of the drum, while the lower extremity i6 thereof is adapted to be pivotally anchored upon a pivot pin or stud I‘! secured to the bottom i2a of the drum in vertical alignment with the central axis of the opening 13. The centrally offset portion 14 of the stirrer bar is twisted upon itself to fa cilitate the stirring and mixing of the compound contained within the drum when the stirrer bar is rotated about its vertical axis of rotation. In order to effect this rotation of the stirrer bar the upper extremity thereof is adapted to be engaged by an operating handle (not shown) of the types more particularly disclosed in my prior patents aforesaid, it being a characteristic feature of these 60 terminal extremities 23-24 thereof. The bush ing it! is provided with a depending annular flange 25 which is exteriorly threaded, as at 26, and in addition is provided with a radially ex 10 clampingly engage the marginal edge of the cen tral opening [3 in the drumhead between the upper face of the member 18 and the lower face of the radial ?ange 27 of the bushing. In order 20 to accomplish this, the split ring member i8 must, of course, be positioned beneath the drumhead II in such manner that the interiorly threaded open ing 2| thereof is in coaxial registry with the cen— tral opening 53 in the drumhead. This is effect cd by the use of a tool 29 of the type shown in Fig ures 5 and 6 and which is in the form of a spring steel strap doubled upon itself to provide a pair of branches 3t and 3| the lower ends of which are respectively provided with outwardly fi turned terminal extremities 32 and 33. Due to the inherent resiliency of the material of which the tool 29 is formed, the branches 30-3! there of tend constantly to spring away from each other into the full-line position shown in Figures 5 1' and 6. To assemble the split ring member 18 and the bushing l9 securely together in the relation shown in Figure 2, the split ring I3 is ?rst threaded through the central opening l3 of the drumhead 40 I 2, this being accomplished most expeditiously by initially inserting one of the terminal extremi ties 23-24 thereof into the said opening l3 and then rotating the split ring member IS in such manner as to locate the said member entirely ,_ beneath the drum head I2. The tool 29 is then also inserted through the opening 13 in the drum as well as through the interiorly threaded open ing 2| of the split ring, this being accomplished by pressing the branches 30-31 of the tool to 50 gether suf?ciently to permit the terminal ex tremities 32-33 to pass freely through the said registering openings 13 and 2|. Upon releasing handles that the blade engaging portion thereof is adapted to be journaled within the bung hole ?tting, the several parts of which are operatively assembled together and secured to the marginal edge of the opening ‘IS in the manner and by the the branches 38-3! they spring apart su?iciently means now to be described. wardly, the split ring 18 is held ?rmly against As appears most clearly in Figures 2 to 6, in clusive, this bunghole assembly essentially com prises a crescent-shaped split ring member l8, a the bottom surface of the drumhead l2 with the O to cause the terminal extremities 32-33 thereof ; to underlie and engage diametrically opposed por tions of the under surface of the split ring is in such manner that as the tool 29 is drawn up the central axis of the disk. The marginal wall of the opening 2! is split, as at 22, at the point of its smallest radial dimension, the separation between the terminal extremities 23-24 of the split ring being merely sumcient to permit the portion of the drumhead 12 which marginally surrounds the central opening l3 therein to be accommodated threaded opening 2! of the member l8 in axial alignment with the central opening l3 of the drumhead. While the tool so engages and retains the split ring E8 in position, the bushing i9 is slipped over the tool 29 (see Figure 5) and downwardly there of for threaded engagement with the split ring I 8, it being apparent that as the bushing is thread edly secured to the split ring, the arms 39-3l of the tool 29 are gradually compressed inwardly and toward each other into the dotted line posi tion shown in Figure 5. When the bushing I9 is threadedly secured to the split ring member l8 suf?ciently to provide a “?nger-tight” hold be 7.5 between the said terminal extremities 23-24 tween these parts, the placer tool 29 is removed, bushing l9 and a bunghole cap or closure mem ber 20. The crescent-shaped member i8 is in reality in the form of a disk of substantial thick ness in which is provided an interiorly threaded opening 2| located eccentrically with respect to 3 2,079,99 1 following which a wrench may be applied to the bushing l9 to effect a leak-tight threaded connec tion between the members 18 and I9. Preferably, gaskets 30a and 301) are respectively disposed UK upon opposite sides of the drum head 12 to insure an absolutely leak-tight connection between the threadedly connected members I8 and I9. Due to the particular shape and construction of the split ring member l8, including as it does a zone of 10 maximum strength in the portion thereof which is diametrically opposite to the free extremities 23—24 thereof, it will be evident that very con siderable power may be applied to the bushing IS in effecting the leak-tight connection without in curring any danger of cracking or otherwise weakening the split ring member, this being due to the fact that the point of greatest strain in this latter member has been subsantially rein forced. 20 With the parts l8, l9 and 300, secured together and to the drum head l2 in the manner just de scribed, it will be apparent that the drum I0 is as fully and completely adapted for reception of an agitating device as though it had been originally specially designed and constructed to receive the latter. Not only is a very considerable saving ef fected due to the saving in cost of the drum itself but there is also effected a considerable saving in the cost of equipping the upper head of the drum 35) with the bung hole assembly due to the fact that the several parts of this assembly are mechanical ly assembled and secured together by the use of simple and inexpensive tools. As will he obviously appreciated, the bunghole Lo 40 faucet (not shown) through which the contents of the drum may be removed. It will be understood, of course, that the in vention is susceptible of various changes and modi?cations which may be made from time to time without departing from the real spirit or general principles thereof and it is accordingly intended to claim the same broadly, as well as speci?cally, as indicated in the appended claims. 1O What is claimed as new and useful is:—— 1. In a reconditioned drum of the character described, having a perforation in a wall thereof, an interiorly threaded split annulus adapted to be manipulated into ?atwise engagement with the inner surface of said perforated wall, and an exteriorly threaded bushing engageable with said annulus and having a radial ?ange adapted to overlie the outer surface of said drum marginally surrounding said perforation, said ?ange coacting with said annulus to clamp therebetween the portion of the drum wall marginally surrounding the perforation therein. 2. In a reconditioned drum of the character de scribed, in combination, a drum having a perfora tion in one of the Walls thereof, an eccentrically apertured disk disposed ?atwise against the inner surface of said wall with the aperture thereof in registry with the perforation in said drum wall, the aperture in said disk being interiorly thread ed for threadediy receiving a ?anged bushing and . the marginal wall of said aperture being split ap proximately at the point of its least radial dimen sion to permit free insertion of the disk through the drum perforation without requiring the di ameter of the disk aperture to be less than that I ?tting or assembly of the present invention may of the drum perforation, and a ?anged bushing vary structurally to adapt it to different types of stirrer bars and operating handles therefor. Thus, the bushing member H], which in each instance is designed for threaded engagement with the threadedly engaging said disk whereby to clamp split ring member l8 in such manner that the said members I8 and I9 clampingly engage oppo site faces of the drumhead I2, may be designed to removably carry a stirrer bar supporting pin 45 of the type disclosed in my pending application Serial No. 663,739, ?led March 31, 1.933. Inas much as this supporting pin forms no part of the present invention, it is deemed unnecessary to de scribe it in detail herein, it being mentioned 50 merely to illustrate the adaptability of the present invention to various arrangements and styles of agitator-equipped drums. The bunghole assembly as hereinbefore de scribed is, of course, not limited in its applica 55 tion to the drumhead alone, but instead may be employed in any other part of the drum to pro vide therein an interiorly threaded opening for receiving any desired type of fitting. For ex ample, the assembly of the present invention may 60 be provided in the side Wall of the drum adjacent the bottom thereof, as at 34, for the reception of a the portion of the drum wall marginally sur rounding the perforation therein between the bushing ?ange and the apertured disk. 3. In a reconditioned drum of the character de scribed, in combination, a drum having a perfo ration in one of the walls thereof, an eccentrlcal— ly apertured disk the marginal wall of Which is split approximately at the point of its least ra 45 dial dimension to provide a pair of terminal ex-, tremities spaced apart sufficiently to permit the disk to he slipped through said perforation into a position overlying the inner surface of said per forated wall, the diameter of the disk aperture 50 being approximately the same as and the overall diameter of said disk being considerably greater than the diameter of said perforation, and a bush ing directly engaging said disk to clamp there between the portion of the drum wall marginally 55 surrounding the perforation therein. 4. In a drum of the character de?ned in claim 3 wherein the aperture in said disk is interiorly threaded and wherein the bushing is exteriorly threaded for threaded reception within said aper ture. CHARLES E. FARRINGTON.