US2233906A

US2233906A - Container and part therefor

Info

Publication number: US2233906A
Application number: US693841A
Authority: US
Inventors: Zalkind Philip
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-10-16
Filing date: 1933-10-16
Publication date: 1941-03-04
Anticipated expiration: 1958-03-04

Description

March 4, 1941. P. ZALKIND CONTAINER AND .PART THEREFOR Filed Oct. 16, 1933 7 Sheets- Sheet 1 H ......\...M.H i

INVENTOR ATTORNEY March 4, 1941. P. ZALKlND 2,233,906

CONTAINER AND PART THEREFOR Filed Oct 16, 1933 '7 Sheets-Sheet 2 March 4, 1941. P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 'T Sheets-Sheet 5 dad? fi 4 I I I I I I I I I I I I I I l a l I l. I a n I ATTORNEY March 4, 1941.

P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 '7 Sheets-Sheet 4 INVENTOR.

ATTORNEY.

March 4, 19421.. ZALKIND 2,233,906

CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 'T Sheets-Sheet 5 INVENTOR.

ATTORNEY.

March 4, 19410 ZALKIND 2,233,905

CONTAINER AND PART THEREFOR Filed Oct. 16, 1953 7 Sheets-Sheet 6 INVENTOR.

,flhili Zkina' BY ,0 %a

ATTORNEY.

March 4, 1941. P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16, 1935 7 Sheets-:Shet 7 INVENTOR 2 [kind ATTORNEY Patented Mar. 4, 1941 UNITED STATES PATENT OFFICE 11 iClaims.

My invention relates to novel structural members, and more particularly, relates to collapsible containers and novel securing and reinforcing metallic members to be used therewith.

In collapsible containers such as described in my copending application Serial Number 631,682, filed September 3, 1932, which matured into Patent No. 1,946.516, Feb. 13, 1934, of which this application is a continuation in part, reinforcing members, preferably made of metal, are applied to the edges of the casing. In order to permit the casing to be collapsed for shipment, it was necessary as described in that application, to reverse the position of at least two of the reinforcing members from their operating position so as to prevent bulging of the material along the internal edge of the casing by the reinforcing members. In assembling the casing, the position of the reinforcing members was then reversed to its operating position.

I have discovered that by .a novel fabrication of metal, I can bend it along predetermined lines, such fabricated metal thereafter having a variety of uses. Among other uses, such members may be used to secure two parts to each other; to reinforce casing edges; etc. In the latter case, the members are permanently secured to the edges of the casings and are bent over the casing edge along predetermined lines to form a reinforcing member.

Accordingly, objects of my invention are to provide a novel fabricated metal; a novel method of and means for bending metal along predetermined lines; a metal in which a differential of tensilestres's' is produced with respect to other forces along a line for predetermining the shape of the metal; a metal weakened along a line for predetermining the shape of the metal; a metal perforated and/or slotted along a line for predetermining the bend of the metal therealong; a metal member fabricated as above for reinforcll'lg casings; metal of the type described above for securing members to each other; a reinforcing member for casings which is permanently secured to the' casings and which does not prevent collapse of the casing for shipment; a metal member adapted to secure the free edges of a casing for forming a tube; .a metal member for preforming and securing adjacent sides of a container.

In the drawers of the type disclosed and described in application Serial Number 631,682 referred to hereinbefore, metallic handles are secured to the front wall. These metallic members are preferably secured through the front wall of the casing to a metallic plate in face to face relation with the rear face of the front wall. To this end, provision must be made for securing the metal plate to the front metallic member which carries the handle. I have discovered a novel construction of metal which permits a simple and easy interlocking and securing of two metallic members to each other.

Accordingly, further objects of my invention are to provide novel apparatus for and methods of securing metal to metal; novel securing means; novel .apparatus for and methods of securing a handle; to provide novel fabrication of metal; to provide an arcuate metallic member protruding from and integral with a member and to provide a novel prong construction.

Heretofore, in providing a back wall for a casing it has been necessary to provide full flaps and secure these by tab means or the like. These are ineificacious, diflicult to properly form and do not provide a strong rear wall.

I have discovered that by employing a separate member and suitably securing it in accordance with my invention, I obtain a strong, secure backing for the casing.

Accordingly, further objects of my invention are to provide a novel construction for a casing backing; to provide a construction for forming a shell or casin from a tube and to provide a separable member for a casing backing.

In the movement of the drawers in and out of the casing, it is desirable that as much freedom of movement as possible shall be obtained. I have discovered that by moving the drawer on a novel roller construction over a track, I can obtain greater freedom of movement of the drawer with respect to the casing.

Accordingly, further objects of my invention are -to provide novel apparatus for and methods of :moving drawers into and from its casing on rollers; novel... apparatus for and methods of mounting collapsible drawers to be moved on rollers from and into a collapsible casing; tracks securedto the casing and/or to the drawer and rollers" mounted on the casing and/or drawer cooperating with'the first mentioned tracks for providing a maximiun freedom of movement of the drawer with respect to the casing.

Further objects of my invention are to provide novel follow blocks for my casing and novel casings and drawers.

There are other objects of my invention which together with the foregoing will appear in the detailed description following in connection with the drawings in which:

Figures 1 to 4 are perspective views of my novel metal construction permitting predetermined shaping.

Figures 5 to 8 are cross sections illustrating the shapes into which the constructions shown in Figures 1 to 4 respectively may be formed.

Figures 9 to 11 are perspective views showing 1 the adaptation of the constructions shown in Fi ures 1 to 4 to a reinforcing member used in connection with my novel casings.

Figure 12 is a detail of the construction shown in Figure 9.

Figures 13 to 15 are details of the interlock employed for my casings.

Figures 16 and 17 are perspective views of a casing and drawer respectively provided with my novel reinforcing members with the drawer movable on rollers.

Figure 18 is a cross section through |8-|8, Figure 16.

Figure 19 is a cross section through |3|3, Figure 17.

Figure 20 is a cross section through 20-20, Figure 17.

Figure 21 is a cross-section through 2|--2|, Figure l7.

Figure 22 is a. cross section through 22- 22, Figure 17.

Figure 23 is a cross section through 23--23, Figure 1'7.

Figure 24 is a cross section through 24-24, Figure 1'7;

Figure 25 is a cross section through 25-45, Figure 17.

Figure 26 is a perspective view of the casing with part of the material cut away to show my novel construction of track secured to the casing.

Figure 2'7 is a perspective view of the drawer cooperating with the casing of Figure 26 showing a roller mounted on the rear wall thereof.

9' Figure 28 is a perspective fragmentary view of a modified form of drawer.

Figure 29 is a perspective view of a casing showing a further application of the novel fabricated member. r

' Figures30 to are detail views of other forms of rollers used in my preferred form of drawer.

Figure 36 is a perspective view of a stack of casings interlocked with an interlock of the type shown in Figure 15.

Figure 37 is a cross section through 31-31 of Figure 36.

Figure 38 is a perspective view of an application of the interlock shown in Figure 14 for a stack of casings.

a metallic member II is constructed with longitudinal rows of corrugation I2, l3 and I4 and spaced by sections [4 and I5. As will be evident, in such a member there is a differential of the resistance to tortional stress along a line transverse to the corrugations between the longitudinal corrugations I2 and section I4. If therefore with the metal supported somewhere along the corrugapoint along the corrugations l2 and at right angles to the plane of the member of Figure 1, the metal will have greater resistance to the bending force along the corrugation |2 than at section l4 where the bending moment will be suflicient to bend along a line along section i4 and transversely of corrugations l2 and I3, due to the considerably greater resistance to such movement along the latter corrugations. It is thus possible to provide a predetermined shaping of the member I I bent along the sections l4 and I5 as illustrated in figures where the metal is shown supported on a base Hi. In actual practice, only minute corrugations are necessary, but for purposes of clarity, the corrugations are shown considerably exaggerated. Although to illustrate my invention. I have shown this principle applied to a metal member, it will be obvious that the same results may be obtained with any other blank material such as corrugated board and the like having flexibility.

. In a modified form of my invention shown in Figure 2, I provide a series of slots 2| interposed between the corrugations 2'2 and 23 of the metal member 24. In this case also, due to the weakened condition produced along the slots or perforations 2|, if the metal is supported say at 23 and a force is applied at right angles to the plane of the metal, the metal will bend along a line through the center of slots 2| as an axis, the

corrugations

22 and 23 again providing increased resistance against any bending tendency thereat compared to the lesser resistance of the slotted portions of the metal. The metal here illustrated as mounted on support 25 may assume the position shown in Figure 6. Although corrugations are shown at 22 and 23, it will be obvious that in some circumstances with the proper strength of metal, perfo rations or slots 2|, alone and without the corrugations, will provide a sufficient differential between the bending stress at 2| and the remaining areas to provide proper bending along 2|.

In Figure 3, I have shown a modification of Figure 1, in which a plurality of transverse corrugations 26 interposed between the corrugations 21 and 28 provide a predetermined bending curve. The bend along corrugations 26 will assume a curve as illustrated at 29, Figure 7, where the member is shown supported on the base 30. By varying the number of such corrugations, it will now be obvious that any desired are or bend may be obtained.

In Figure 4 I have illustrated a plurality of corrugations 3| interposed between flat members 32 and 33 which, as described in connection with Figure 2', may under certain circumstances provide a sufficient differential between corrugations 3| and surfaces 32 and 33 to bend the metal in a predetermined shape as shown at 34 supported on base 30, in Figure 8'.

In Figure 9, I have illustrated the application of the principle disclosed in Figures 1 to 4 to a metal reinforcing member which is used in connection with an improved construction of casing having the general construction of the casing shown in my application referred to above.

As shown, the member 35 is provided with a plurality of securing

prongs

36, 31, 38 and 39 formed by punching these prongs from the metal to protrude at right angles to the surface of the metal. Each prong consists of substantially triangularly shaped members having curved sides and base, and functioning as will be described hereinafter in more detail, to secure member 35 to the wall of any member such as the wall of a casing near its edge as will be described in detail hereinafter. Two

pockets

43 and 44 formed by slitting and embossing the metal are located at the opposite ends of member 35 with their open ends facing the adjacent end of the casing and are provided for the purpose to be explained hereinafter in connection with interlocking adjoining casing. Along one edge of the member 35 is the embossing 45 for forming a rabbet in the reinforcing member. Mounted on this rabbetis a pin 45 carrying a freeto-rotate roller ll.

Extending along the member 35, Figure 9, are two rows of slots 5! and 52 shown in more detail in Figure 12. Each of these slots are formed by punching slits 48, 19 and 55 along three sides (if a rectangle in the metal, the same punching operation also bending the metal into an arcuate shape as shown at 59 and 54.

With such a metal suitably secured as by the prongs 35 to a supporting base such as the wall of a casing, a force applied at right angles to the plane of the member will invariably bend it into an are formed by the two rows of slots 5| and 52 due to the differential in the bending resistance of the metal, as illustrated at 55 in Figure 18. As the member 35 is bent inwardly and assumes an arcuate shape, the sides 48 and 50 refill the space between these sides and curvature 55. Thus, as the metal is bent, it automatically assumes a predetermined curved shape with the edges of the slitted metal and the edges of the main section in engagement with each other.

In Figure 10, I have shown an alternative construction of reinforcing members in which a series of cut-out slots or perforations extending along the metal 56 provide a predetermined bending line along an imaginary line extending along the slots and half way between the upper and lower edges. As in the case of Figure 9, suitable securing means by prongs 51 stamped from the metal are provided for the plate 56. As shown in Figure 27, the drawer 56 having front walls, side walls, and rear walls, distinguishes from the drawer in my earlier application by the flanged ends 5i formed by bending the material back on itself for a short distance before the tongue extensions 62 are turned into engagement with the side wall.

The blank shown in Figure 46 comprises a main section 63 forming the bottom or floor wall of the drawer,

sections

65, 65 scored at 66 to form one side Wall,

sections

61 and 68 scored at 69 to form the opposite side wall, sections 70 and H scored at 72 to form the rear Wall and sections 73 and i l scored at E5 to form the front wall,

sections

55, 61, 70 and 13 being integral with thefmain section 63, all as is now well known from the parent case.

The rear and front walls are provided with tongues 76 to 83. When the rear wall sections are turned on their score lines i2, tongues 76 and Ti overlap and tongues '58 and i9 overlap in face to face relation. When now the rear wall is turned to a position at right angles to the section 53 and tongues i6, i1 and 79, 80 are turned at right angles on their score lines into face to face relation with side wall sections 6 3 and 61, respectively,

sections

65 and 68 are turned on their

score lines

66 and 69 to envelope the tongues.

Flaps

85 and 86 will be seated in

openings

81 and 98 in sections it and iii.

The front wall sections are folded in a similar manner with this difference: It will be noted that score lines 9i and 92 on tongues 89 and 92 respectively are not aligned with score lines 99 and 94 of tongues 8i and 92 respectively. Moreover,

'and 82 are first turned on score lines 9| and 92 and then turned back on

score lines

95 and 91, as illustrated in Figures 22 and 25. The distance from 95 to 96 is such that in the reentrant portion score 96 is opposite score 93- so that when the tongue M is turned to engage tongue 89, the two may now be jointly turned to engage the side walls. A small flange equal to the distance from score 93 to 9| will thus be formed.

Mounted on the side of the drawer 50 is a metallic member illl secured thereto by a suitable means such as prongs at 36 and 3? disclosed in Figure 9. As shown in the cross-sectional view, Figure 24, the member ml is curved at its uppper portion i 92 to form a track which cooperates with a roller on the casing as will be described in the following: As shown in Figure 24, the track llll is secured by the prong 36 to the

side wall sections

64 and 61 of Figure 46, which form the outer section of the side walls. It will be understood that a similar track is provided on the outer side of the opposite side wall from that shown in Figure 17.

Interposed between the outer wall 13 and the inner wall it of the front walls is a fiat handlesupporting member I03 to which is secured a fabricated handle-supporting metal member I04 having rolled cylindrical-shaped ends N15 for receiving at the entrances thereof the ends of the handle I06. Handle N16 is thus pivotally mounted in the fabricated metal member I04, which is in turn secured to plate 503. An opening Nil cut in the outer wall i3 provides accessibility to the handle Q05 which is so mounted with respect to the opening that when the member N13 is in serted in place, the handle will seat in the opening it and be flush with the surface of the outer section 73.

The casing I08, Figure 16, is provided with ver-' tical reinforcin members Hi9 and H0 fabricated in a manner described in detail in connection with Figure 9 and having the same prongs 36 and 31 as shown in that figure, the pocket formation 33 and M5 receiving the interlocking member, slit formations 5i and 52 forming the predetermined bending line at the edge of the casing, the embossing 45 which provides a rabbet formation, the roller 41 mounted on a pin 36 for rotation thereabout, horizontal reinforcing members III at the top and bottom of the front edge of the casing, which extend from one of the reinforcin members M9 to the opposite reinforcing member H0.

Horizontal members Hi form a bearing for angle wire H2 having two sections H3 and H4 at right angles to each other. Angle wire H2 is arranged adjacent to the horizontal edges of the front wall of the casing H18 and when the horizontal reinforcing member is slipped into place as shown in Figure 16, it secures the angle wire H2 in position and forms a bearing therefor, about which one section or leg H3 may be revolved. Angle wire extensions from both the right and left-hand ends of both top and bottom horizontal reinforcing members iii are provided.

In practice. the casing is shipped collapsed, with the fabricated member H19 extending in a plane as shown in Figure 9, that is to say, not bent along the predetermined bending lines formed at El and 52. At the point where the casing is to be used, the angle wires H2 are rockedin their bearings until the vertical portion or leg section II4 of each of these angle wires is against the vertical edge at the front of the casing. Members I09 and II are then bent along their predetermined bending lines encasing the vertical legs or portions II4 of the angle wires I I2. Secured to the rear edge of the casing I08 are reinforcing member H and H6, the details of which will be described hereinafter in connection with Figures 44 and 45.

In Figures 26 and 27, I have shown a modification of both the drawer and the casing. In these figures, the drawer is provided with the same tracks II as the drawer in Figure 17. In addition, however, the drawer is also provided with aroller I I1 secured to the rear wall section at the point where the rear wall and its tongue extensions meet. A similar roller is, of course, provided on the opposite side of the rear wall.

The casing of Figure 26, in addition to being provided with the roller 41 of figure on the vertical reinforcing members I09 and III], is also provided with a track II8 similar in construction to the drawer track, except that the channelor track formation is at the bottom'rather than at the top. The track H8 is located at a slightly elevated position with respect to the roller 41 and in line with the roller II1, so that the latter rides in track 8, while roller 41 rides in track WI. The positions of these rollers and tracks are such as to just support the drawer on the base of the casing, but disengaged therefrom sufficiently to prevent frictional engagement therewith.

In Figures 28, I have disclosed a further modification of the drawer, in which the edges of the drawer are reinforced by the fabricated metal member I2I having the predetermined bending line formed at I22 so that when the drawer is assembled, the metal member I22 secured by prongs I23 to the outer side Wall is bent over into the position shown in Figure 28.

In Figure 29, the casing is shown secured at its open edges by the fabricated metal member I25 which replaces the tape heretofore used.

In Figures to 35, I have showna further feature which may be applied to my drawers, comprising rollers secured to the base or floor member thereof for riding on a track in the casing. As shown in Figure 34, a flat member I 3I preferably made of metal may be provided with prongs stamped therefrom in a manner already described and may be scored to form a predetermined bending line at I33 and I34. At I35, the metal is punched out, forming a pin support at the openings I36 and I31 for a roller when the metal is turned along its scorings I33 and I34 into the form shown in Figure 32.

A pin I4I having its ends I42 and I43 of reduced diameter protruding through the openings I36 and I31 and providedwith the caps I44 and I45 carries the ring I46. Between the rings I46 and I41, the roller ball bearings I48 are supported for permitting a free rotation of the roller I49. The member I3I, after being formed in the shape shown in Figure 32 is secured to the inner and outer side wall by its prongs as shown in Figure 31, the side of member I3I coming opposite the inner side wall being admitted therein through a suitable slot formed in the side wall.

Secured to the base of the casing is a member I5I having the dimensions substantially equal to the inner dimensions of the bottom of the casing and having tracks I52 and I53 formed therein at positions at which the rollers I49 will ride in the track. Ina further form of my invention these tracks may be constructed as an inherent part of the base or bottom section of the casing.

In Figures to 43 I have disclosed a further form of supporting the side walls of the drawer to the front wall. Two fabricated metal mem-. bers are employed, in this arrangement, one as shown in Figure 43"comprising a fiat metal member I6I having prongs I62 punched therein in a manner already described in detail and having a number of elongated slots I63 punched therein. Member I61 is admitted into the inner front wall through a suitable slot in the tongue extending from the front wall as shown in Figure 40 and secured thereto by mean of its prongs I62. The slots I63 are arranged on that portion of the member IBI which protrudes from the side of the tongue. Secured to the front edge of the side wall I64 of the drawer is a second uncompleted U-shaped member I65 having prongs formed therein at I66 and provided with a set of lugs I61 formed from the metal in a manner similar to the formation of the prongs. These lugs, as will be seen from Figure 42 are formed at the curved portion of member I65. The lugs I61 are individually provided with depressed projections I61 thereon having a spring action. When the member I65 is brought into engagement with member I6I, these lugs, which are cut so that they are in alignment with the slots I63, may be inserted into these slots. The projections I61 are so arranged as to pass through the slots I63 by spring action and lock the wall members of the drawer into place.

In assembling the drawer, the front wall is raised to its vertical position with the tongue turned inwardly and the side wall is then raised to the position shown in Figure 40 and the lugs I61 are forced through the perforations, locking the side and front walls to each other.

In Figures 13 and 15 and 36 to 38, I have illustrated an arrangement for providing an interlock between the casings in a vertical stack and in a horizontal stack. In Figure 13 I have shown the simplest form of interlock comprising a metal member "I having an embossed central portion at I12 in which 9. lug is punched, as shown at I13. The ends I14 and I15 of the member I1I are arranged to seat themselves in the pockets I16 and I11, Figure 38, which are formed on the reinforcing members I18 and I19 of adjacent casings and are similar in construction to that described in detail in connection with the

embossed pockets

43 and 44 of Figure 9.

In actual practice, one end I14 of member "I is first inserted in the pocket I11 of the reinforcing member I16 of the lower casing, the pocket I16 of the reinforcing member I18 on the upper casing is then brought next to the upper edge of the interlocking member, and the end I15 is permitted to slip into place as shown in Figure 38.

In another form of interlock, especially suitable for the rear of the casing, I provide a substantially U-shaped member I8I having turnedin'ends I83 and I84. Member II is adapted to be slipped over the horizontal reinforcing members on the rear walls of the casing, of the form to be described hereinafter. Thus as illustrated in Figures 38 and 39, the member I8I encases the two reinforcing members I85 and I86 and the turned-in ends form locking lugs for this interlock.

In a further adaptation of my interlock for securing not only the vertical colun'm of casings, but also adjacent horizontal casings, I provide a substantially U-shaped member I! having lugs I92 and I93 punched therein and having an extension I93 integral with the U-shaped member I9I. Extending transversely of said U and integral with the extension I93 is a fiat member I95 having lugs I96 and I9? punched therein. As shown in Figure 36, the U-shaped portion I9I is slipped over the horizontal reinforcing members until the lugs I93 and I96 engage the rear of the reinforcing member and lock the interlock in position. The extension I95 brings the portion I95 in surface contact with the vertical reinforcing members of the two adjacent casings being interlocked. The lug I96 now provides a receiving pocket for corresponding lug I91 on the interlock secured to the next adjacent column of casings and the opening formed by the lug I91 in turn forms a pocket for the corresponding lug I96 of the adjacent interlock. Thus, the U-shaped member I9I' of the adjacent interlock is provided with the transverse member I95' having lugs I96 and I91 formed thereon which, as shown in Figure 37,

cooperate with the lugs I96 and I91.

In Figures it and 45 I have shown a completed setup of the casing as it is received in shipping and before complete assembly. In Figure 44, the casing is shown after it has been received in shipment and turned on its scored lines into the form of a shell. The angle wires 203 protruding from the horizontal reinforcing members 28 3 are in position to be turned in their bearings to a position adjacent to the vertical front edges of the casing so that as the vertical reinforcing member 2% is turned, on its predetermined bending line 288 and the vertical reinforcing member 261 is turned on its predetermined bending line 288, they will encase the angle wires 2&3. At the rear of the casing I provide a member 2i I having score lines to form a shallow pan-like member as shown in Figure 45. Along two sides U-shaped reinforcing members 2I2 and 293 are secured and so arranged that when the shallow pan-like member 2H is inserted into the rear of the casing, the members 2 I2 and 2 I3 will slip over the edges of the casing limiting the inward movement of member 2. Thereafter the reinforcing members 2I5 and ZIS secured to the sides of the casing are turned along their predetermined bending lines 2!? and 2m to engage the edges of the sides 2I9 and 22!! of the pan-like member 2, thus locking this member in engagement with the casing.

In the above I have described my invention by illustrating preferred adaptations thereof, but it will be obvious that it may take other forms and I do not wish to be limited except as set forth in the appended claims.

1. A casing to be shipped in knocked down condition comprising scored side, top, and bottom wall members; and an open front end; vertical metallic reinforcing members for the sides of said open front end and securely affixed to the outside of the side wall members in the knock down condition; a portion of said reinforcing members protruding beyond the edges of said casing to permit said casing to be collapsed along the scorings for shipment, said protruding portion being adapted to be manually folded into contact with the inside of the side wall upon affixed to the side wall members in the knocked down condition; a portion of said reinforcing members protruding beyond the edges of said casing to permit said casing to be collapsed along the scorings for shipment, said reinforcing members being fabricated to produce a predetermined bending line along which the protruding portion is bent to encase the edges of said casing.

3. A casing to be shipped in knocked-down condition comprising scored side, top and bottom wall members; an open front end; vertical metallic reinforcing members for the sides of said open front end and securely aflixed to the side wall members in the knocked down condition; a portion of said reinforcing members protruding beyond the edges of said casing to permit said casing to be collapsed along the scoring for shipment; said reinforcing members being slitted in parallel rows to form a predetermined bending curvature which starts at the outside edge and terminates on the inside edge of the casing edges.

4. A casing to be shipped in knocked-down condition comprising scored side, top and bottom wall members; an open front end; reinforcing members for said open front end; a portion of said reinforcing members protruding beyond the edges of said casing when the casing is 001- lapsed to permit said casing to be collapsed along the scoring for shipment and rollers mounted on the protruding portion of said reinforcing'memher.

5. A casing having top, bottom, and side sections connected by score lines; an open front end section; vertical reinforcing members secured solely to the outside surface of said casing along the vertical edges of said open front end to permit said casing to be shipped in knockeddown condition and means whereby when said casing is turned on its scorings into an assembled unit, said reinforcing members are manually turnable about said vertical edges into a U formation.

6. A casing having top, bottom, and side wall sections connected by score lines; an open front end section; vertical reinforcing members secured solely to the outside surface of said casing along the vertical edges of said open front and to permit said casing to be shipped in knocked-down condition; means whereby when said casing is turned on its scoring into an assembled unit, said reinforcing members are manually turnable about said vertical edges into a U formation and reinforcing members secured to the horizontal front edges of said casing and angle wires pivotally held by said horizontal reinforcing members and rotatable to be engaged by said vertical reinforcing members as said latter members are turned into a U shape.

7. A casing to be shipped in knocked-down condition comprising scored side, top and bottom wall members; an open front end; reinforcing members for said open front end; a portion of said reinforcing members protruding beyond the edges of said casing to permit said casing to be collapsed along the scorings for shipment, and rollers mounted on said protruding portion of said reinforcing members, said rollers BIB lying entirely without the casing when the casing is in collapsed condition.

8i A collapsible cabinet comprising the combination of a drawer section of a substantially fibrous board structure foldable into a substantially flat arrangement; a casing section of a substantially fibrous board structure for enclosing said drawer section, and foldable into a substantially fiat arrangement; roller; mechanism associated with one of said sections for slidably supporting said drawer within said casing when said sections are in assembled condition; reinforcing means secured to said one section for carrying said roller mechanism, whereby said one section is foldable into said substantially flat arrangement with said roller mechanism and reinforcing means attached thereto, with negligible additional thickness being required for said flat arrangement; and track mechanism for coacting with said roller mechanism mounted on the other of said sections, and adapted to strengthen said section whereby said other section is foldable into said substantially fiat arrangement with said track mechanism mounted thereon.

9. A collapsible cabinet comprising the combination of a drawer section of a substantially fibrous board structure and a casing section of a substantially fibrous board structure; each being foldable into substantially flat arrangement; roller mechanism associated with one of said sections for slidably supporting said drawer within said casing when said sections are in assembled condition, and reinforcing means secured to said section for carrying said roller mechanism, said section being foldable into substantiallyflat arrangement withsaid roller mechanism and reinforcing means attached thereto; and track mechanism for coacting with said roller mechanism mounted on the other of said sections and adapted to strengthen said section,

saidbther section being foldable into substantially flat arrangement with said track mechanism mounted thereon.

10. A collapsible cabinet comprising the combination of a drawer section and a casing section for enclosing said drawer section; each made of foldable sheet material; roller mechanism associated with one of said sections for slidably supporting said drawer within said casing when said sections are in assembled condition; reinforcing means secured to one section for carrying said roller mechanism, said section being foldable into substantially flat arrangement with said roller mechanism and reinforcing means attached thereto, with negligible additional thickness being required; track mechanism mounted on and adapted to strengthen said other section for coacting with the roller mechanism, said other section being foldable into substantially flat arrangement with said track mechanism mounted thereon.

11. A casing for a file cabinet or the like, said casing having an open front end and comprising a bottom wall; side walls; a top wall; said walls being made of sheet material having fold lines between the top, bottom and side walls along which lines the same is manually ioldable to form said walls; reinforcing members at the front edges of said bottom and top walls; vertical reinforcing members at the front edges of said side walls to produce greater compressive strength at the open front than that produced by the material in said side walls for carrying downward stress of a load thereon, and means connecting horizontal and vertical reinforcing members to maintain rigid angular relationship; a roller on each of said vertical reinforcing members; said casing being collapsible with the reinforcing members and rollers mounted thereon.

PHILIP ZALKIND.