US2324709A - Pressure resisting waterproof buoyant container - Google Patents

Description

July 20, 1943. H. H.' LINDLEY 2,324,709

. PRESSURE REsIsTiNG WATERPROOF BuouNT CONTAINER Filed oct. 15', 1942 Patented July 2U, 1943 l PRESSURE nEsIs'rING WATERPROOF BUorANT CONTAINER i Harry H. Lindley, Marion, Ind., assgnor to Lindley Box & Paper'Gompany, Marion, Ind., a corporation of indiana Application @ctober 15, 1942, Serial No. 462,117

s crains. (c1. ,en 17) This invention relates to a5 box of pressure resisting and waterproof character.

The chief object of this invention is to provide a container, such as a-box,iwhich is capable of resisting considerable pressure applied externally thereto andA which is completely waterproof insofar as the box contents Ais concernedi The chief feature of the invention consists in providing an4 inner box in spaced relation to an outer box, both being of considerable pressure resisting character for certain uses, and with the interior dimensions of the outer box being appreciably larger than the exterior dimensions of the inner box, thereby formingwa completely enveloping chamber about the inner box, which chamber is filled with a waterproof material, the inner box .being suitably spaced from the outer box and maintained in such spaced relation by means so arranged that every seam, or crack of the inner box is completely sealed. bythe sealing material or compound employed.

Other objects and features of the invention will be hereinafter set forth moreffully. Y

To appreciate the value of theI present invention, by way of explanation, it may be pointed out that a box having the external dimensions of 3 feet x 3 feet x` 5 feet, ory 45 cubic feet, may contain -fabricated parts for repair and' replacement purposes, or special tools, etc., valued at fifteen thousand ($15,000.00), dollars. ers of this character,` therefore,insure the safe and proper -condition of the aforesaid parts, tools and lthe like at the pointof destination and the comparative increased costof the present invention compared with the value ofthe ccnt'entsis insignificant.

One of the prime objectives ofthe invention is to insure against the loss of man hours of material involved in the container contents. Of

course, if the container is lost in transit,` then Containof the container at a designated location, whether that be below low tide in a river channel, in a swamp, or the like, thus insuring perfect preservation ofthe-container contents even though so concealed.. i

The foregoing explanation is given to illustrate the value of said invention under present emergency conditions. v

The full nature of thefinvention will be understood from the accompanying drawing and the following description and claims:

In thedrawing Fig. l is a perspective viewA of theinvention.

Fig. 2 is a sectional view thereof takenon line 2 2 of Fig. 1 and in the direction of the arrows. i A

Fig. 3` is a central and vertical sectional View taken on line 3--3 ofFig. 2 and in the direction of the arrows. i

Fig. 4 is a perspective view of one interior corner of the outer box.

Fig. 5 is a perspective view of the cover of the -inner box.

l ing thereon. Secured to each end and-approxithe objective of the invention naturally" is defeated. However, containers of this character have been subjected to exceptionally severe tests. It has been found that sea water fromthe South California coast is more destructive tol metalthan sea water from other localities, such aslthe Atlantic coast and the like; character has been" subjected to this water and held submerged in a tank thereofand subjected to considerable pressure, the equivalent ofbeing submerged twenty or thirty feetand held there for a Week, without water penetrationto the contents. Containers cf this character, therefore; will permit lightering with safety between Vtrans-- port and the shore` VIt will also permit burying A container of this Y mately midway between each side thereof is an interior spacing cleat I5, preferably tapered as at I6 and grooved or notched as at I 'l.

Adjacent to the` end of the outer container and suitably secured tothe interior thereof `and on the bottom is another cleat 13 having tapered ends` I9 and notched as at 20. Secured to the interior of each sidewall ll and adjacent to each end and preferably substantially in alignment with the cleat I8 is the cleat; 2| having tapered ends 22 and the notches 23. .i

The inner container includes the bottom 24, having the seams or cracks 25. These seams or cracks register with notches 20. The box `also includes two sides 26 and these sides have the seams or cracks 21., whicnregister with the notches 23 in the cleats 2l. Ihe box has `the two endsV 28 and the seams or crack 29 therein register with the` notches l'l in the end spacing cleat l5.

When the inner box is inserted in the outer box, both being uncovered, or when the inner box with its cover thereon is inserted within the outer box, then uncovered, the result is that the inner suitable mastic seal, r the like, 30, which, as will be observed, completely lls that chamber. The notches or grooves, I1, 20 and 23, insure that this compound of asphaltic or like character will seal the entire exterior surface of the inner box, except where the exterior surface thereof has facial contact with the immediately adjacent confronting face of the spacing cleat, but that surface at the crack or seam, 25, 21 or 29, as the case may be, is rigidly sealed by the compound that flows into the notches, 20, 23 and I1. Likewise, the seams at the cornersand the several edges of the inside box naturally are fully sealed by the mastic composition.

Reference will now be had to Fig. 5. In this figure 3l indicates the top of the inner box. It includes the cracks or seams 32 and mounted thereon and externally thereof, as at 33, are the outer box top spacing cleats 34, having the notches 35 therethrough.

As previously stated the inner box may be placed within the outer box and then the contents supplied to the inner box and then the inner boX cover shown in Fig. 5 applied thereto, or the inner box may be lled and covered and the entire structure then applied to the outer box.

It will be observed that the top edges of the sides and ends of the outer box are spaced at an elevation at least equal to the height of cleats 34, so that when the inside cover is securely anchored to the inside box, the waterproofing compound may be applied to the chamber and completely fill the space between the two boxes, flowing into the several notches so as to seal the seams or cracks in the inside box. The compound 1` also will be applied over the top of the inner box and to a level at least sunicient to fill the resulting chamber thereabove after the other spaces have been fdled with the mastic. Then, the other cover, designated by the numeral 3S, may be applied.

It will be observed that if the box is of full cleated character, there will be additional cleats or battens 31 and 38 on the cover and on the bottom of the outside container. Also, the sidewall of the outside container in addition to the battens I2 may be provided with the battens 39. The result is a full cleated box.

Various minor departures may be made, as for example, the notches may be of V-shape or U- shape, while herein the notches are actually illustrated as semi-cylindrical in shape.

From the foregoing it will be quite apparent that the inside box is xedly maintained in spaced relation relative to the inside of the outer box and that the mastic completely encloses the inner box especially at the seams or cracks. It will also be appreciated that the composite container is of such character, being made of wood, insofar as the inner and outer boxes are concerned, the outer box is quite strong and can be subjected to considerable abuse without breaking and the like, so that the box may be handled in a conventional manner and stacked with the others, or transported like any other wooden box, and the outer container protects the intermediate mastic covering from injury.

The inner box is of similar character, but when it is understood that sea water under pressure exerts that pressure through the cracks and seams through the outer box on to the mastic, the mastic would yield inwardly if it were not for the presence'of the inner wood box more particularly the inherent strength thereof. Thus the or contents of the composite box and the strength to resist external pressure application, while the outer box provides the protection to the sealing composition about the inner box and prevents injury to or destruction of the enveloping mastic. The resulting container is of exceptionally simple construction, yet embodies all the essentials necessary to withstand the several severe uses hereinbefore mentioned.

While the invention has been illustrated and described in great detail in the drawing and foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modiiications described herein as well as others which will readily suggest themselves to perso-ns skilled in this art, all are considered to be within the broad scope of the invention, reference being had to the appended claims.

The invention claimed is:

1. A pressure resisting completely waterproof composite container including in combination an inner box, an outer box completely enveloping same and having interior dimensions slightly in excess of the corresponding exterior dimensions of the inner box, spacing means between the boxes to completely and rigidly space the inner box from the outer box, to maintain such spacing arrangement and to form within the outer box an inner box completely enveloping chamber, and a waterproof sealing material completely lling said enveloping chamber, the inner box having certain walls of multi-part character with a longitudinal seam therein, each spacing means being arranged in the chamber to expose the complete seam to said sealing material for seam sealing purposes.

2. A pressure resisting completely waterproof composite container including in combination an inner box, an outer box completely enveloping same and having interior dimensions slightly in excess of the corresponding exterior dimensions of the inner box, spacing means between the 45. boxes to completely and rigidly space the inner inner box provides the container for the articles box from the outer box, to maintain such spacing arrangement and to form within the outer box an inner box completely enveloping chamber, and "a waterproof sealing material completely nlling said enveloping chamber, at least one wall of the inner box including a longitudinal seam therein, the adjacent spacing means being elongated and extending angularly of and bridging said seam, the inner box confronting face of the last mentioned spacing means being relieved in registration with that seam for sealing material reception and complete seam sealing.

3. A composite container including an inner wooden box, an outer wooden box having its interior spaced from the inner box and forming therewith an inner box enveloping chamber, a waterproof sealing composition completely lling the enveloping chamber, and cleat spacing means interposed between adjacent box walls for forming an enveloping chamber between the boxes and immobilizing the inner box within and in spaced relation to the outer box, certain of the inner box walls including a longitudinal seam, the spacing means being adjacent thereto and rigid with one of the boxes and having its inner box confronting face relieved in registration with the seam for sealing material reception and complete seam sealingl HARRY H. LINDLEY.

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