US2479347A - Dispensing drum cover - Google Patents

Description

Aug. 16, 1949. w. GOTHAM DISPENSING DRUM COVER Filed June 4, 1946 INVENTQR WALTER GOTHAM BF; 4 6

ATTORN EY Patented Aug. 16, 1949 DISPENSING DRUM COVER g Walter Gotham, Union, N. J assignor to Nuodex Products 00., Inc., Elizabeth, N. J a corporation of New York Application June 4, 1946, Serial No. 674,218

1 Claim.

This invention is a coverv adapted to be associated with drums containing chemicals and chemical compositions of viscous, stringy and sticky nature and to permit, through the use of this cover, the dispensing of such materials in desired quantities in an efiicient; economical and thoroughly practical manner.

Chemical compositions of the character referred to are generally shipped in conventional drums, sealed by covers held in place by detachable locking rings. These drums contain from 10 to 60 gallons of the material and it is the usual practice to remove the cover and dip out such quantities as may be required from time to time. This practice is convenient for low viscosity liquids but viscous and stringy materials cannot be satisfactorily removed in this way. When, for example, one attempts to remove portions of a highly viscous rubber composition from' a drum, by the use of a spatula or paddle, this material is found to be so stringy that it is necessary to cut off orseparate the dipped material' greatly simplify the removal of portions of'said,

materials from the drum by a single workman and without requiring the arduous labor that has heretofore attended such operation.

All of the materials of the character specified are mobile and will flow under the influence of gravity. The present invention utilizes this property, by the provision of means which will permit, when the drum is restingupon its side, a controlled flow of the material from the drum and with the provision of means for cutting off this flow at the will of the operator.

In one of its preferred forms, the present invention provides a supplementary drum cover which may be substituted on the conventional drum after a filled drum has been received by the user. The conventional cover is first removed by releasing the usual locking ring and the supplementary cover is then placed in position on the drum and locked firmly in place by returning the locking ring to the drum. Positioned adjacent the periphery of this supplementary cover is an outlet opening, registering with an outlet spout positioned on the exterior of said cover and at the outer end of this outlet spout, which projects well beyond the surface of the cover, is a gate in the nature of a slide valve. This gate is made relatively thin, so that its lower edge is in effect a cutting edge. The gate is guided for vertical sliding movement in channel guides extending in parallel relation vertically along the lateral edges of the spout and it projects above the spout and is there connected to the work arm of a lever fulcrumed either on a bracket carried by the spout or on a fulcrum pivot carried by the cover itself. The power arm of the lever is bent to extend into accessible position to be grasped by the operator and manipulated to raise or lower the gate.

The supplementary cover is substituted for the conventional cover while the drum is in upright position and thereafter the drum is tilted onto its side, either manually or by the use of a chain hoist or otherwise so that the material in the drum will flow against the inner surface of the supplemental cover and tend to exit through the spout, but the discharge of this material will be normally precluded by the closed gate. However, when it is desired to withdraw any portion of such material, the operator may manipulate the lever to open a gate and allow the material to slowly flow from the spout by gravity in a rather heavy viscous ribbon which may be cut off at any time by the operator through mere operation of the lever to close the gate. In practice, it is convenient to place the receptacle into which the material is to be discharged, upon a scale and to discharge successive quantities of the material into such receptacle until the desired exact weight required has been thus dispensed. This can be readily accomplished by the present invention for the gate may be operated to discharge little or much of the material as may be required.

A very important feature of this invention resides in the simplicity of its structure and mode of operation. It requires no arduous work on the part of the operator, can be readily manipulated by one person, and there is neither dipping out nor dipping back, as is required under prior procedures.

The supplementary cover is preferably provided near its periphery and at a point diametrically opposite from the spout with a vent through which air may pass into the interior of the drum to displace the material drawn therefrom. In dealing with some materials, this vent hole may be connected with an appropriate source of an inert gas, e. g., carbon dioxide, so that such inert gas may be admitted to the drum in lieu of air which would tend to oxidize materials which it may be desired to protect against such oxidation. With this arrangement the materials in the drum are kept fresh and free from deterioration, because the gate will normally seal the drum against the entrance of air or of other extraneous matter.

Features of the invention, other than those adverted to, will be apparent from the hereinafter detailed description and claim, when read in conjunction with the accompanying drawing,

The accompanying drawing illustrates different practical embodiments of the inVentior ,"but the constructions therein shown are'to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 is a perspective view of a dispensing cover embodying the present invention, showing a portion ofan associated drum in phantom, the conventional "loo-kingring being omitted in the interest of clearn'ess.

Figure 2 is'a di ametric section taken on the line 2-'-'2 of Figure 1.

'Fi'g'ur'e s is a View similar to Figure 2, but illus.-.. trating'a modified form" of the invention.

Byrfe-rence to Figs. 11 and 2, l designates the auxiliary "cover provided with a peripheral channel section 2't'o fit over the open end flange of. a conventional drum D 'andto be locked inpla'ce against said flange by the usual locking ring. The body of the cover I is shown fiat or plane, although it may be annularly or radially vcor.- ru'gated, domed 'or'otherwise shapedjas desired. The outlet opening is shown atv 3, with the j uxt ae po'se'dwexterior spout 4, illustrated as made of sheet metal and welded to thec'over. is preferably sloped, as shown, and at its outer margin, it is provided around its bottom and side edges wi h a channel 5 in which a re ativ l in metal gate 6. is mounted for vertical sliding movemeht. The gate pro ects omew a ab v the spout andis provided therein with a transverse s th ueh whi h pro ects a vet -16. ca r d byithe free end of the worl; arm 9 Of, a lever of th first ass. T is ever is ul rumed on a rivet l'fi; carriedby a bracket H, shown as welded to the top wall of the spout at H2. The pewer arm l3 o'ffithe lever extends into convenient position for manipulation, as clearly shown F s nd 2. The clos d positions of the lev r and te s shown in full lines in these figu es. The dotted h -wi-ne o th se rarts co resnond to th p n position of the ate.

The lever is shown as made irom strip stock with the power arm end thereof returned. upon itself to provide a more comfortable hand grip. The vent opening hereinbefore referred to is indicated at [4, as a vent'tube and this tube may, in practice, be threaded if desired.

'In F ig=ure;l3 the structureis the same as in the preceding figures except that the fulcrum 1.001 of theeperating lever is carried' by the body of the The snout.

a supplementary cover adapted to replace the converitional drum cover on drums shipped with such a conventional cover. It is within the purview of this invention, however, to incorporate the invention withinjthecover which is associated with the drum during shipment and the invention is therefore not tp be limited merely to use as a substitute or supplementary cover. Likewise the supplementary cover has been shown without the conventional threaded bung. In practice it may be provided: additionally with such a bung and the vent tube'may be car-riedby' the bong.

The foregoing detailed description sets forth the inventionin its preferred practical forms," but the invention is to. be understoodfi'as fully commensurate with the appended claim.

Having thus fully described the invention, what I claim as new and "desire'to secure by Letters Patentis:

In an assembly of, the character described, a u plementary drum cover: adaptedytnfit the open endof a standard :size audio he 18 1 o d pense ma eri ls om suc es ive drums oi hat iz s id co er havin an outletamin ear the ner ebery thereof; a rect n u outl t. r sortg isa d cove s id. e dlr beye d t e et a:

mut-fixed t the ou p ut proi eti s 1 of said cover an re istering with s id. wi h? open n uides of e11at i led, gro sseet eneliie he a t e le ge ae re s. the bott m ed e e; t e ou er and of s snout, a sate v rtio REFERENCES CITED UNITED :srA'rEs rams Numb r N me Pe 435,4 5 Taylor se t. 2'; 890

752,586 Pitts] Fe}; is; 11-904 15655 533 Campagna Jan. 10,1925? me -e66 Hoffman Oct. eel-194i 2,357,421 M r a

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