US1515983A - Box blank and box made therefrom - Google Patents

Description

INVENTOR ATTORNEY Nov. 18 1924- E. P. WILLIAMS BOX BLANK A'ND BOX MADE THEREFROM Filed July 16 Patented Nov, 18, 1924.

iETE STTES ELI P. WILLIAMS, OF MGPHERSON, KANSAS.

BOX BLANK AND BOX MADE THEREFBOM.

Application filed July 16, 1921.

T aZZ whom it may concern:

Be it known that I, ELI P. WILLIAMS, a citizen of the United States, and a resident of McPherson, in the county of McPherson and State of Kansas, have invented certain new and useful Improvements in Box Blanks and Boxes Made Therefrom, of which the following is a description, reference being had to the accompanying drawings, forming a part of this specification.

The objects of my invention are First: To provide a novel fastener that is dependable, simple and easy to operate, and will securely fasten and lock together, the parts of boxes and covers for same, made from box blanks of any description, so the boxes will be rigid, strong and durable and will not'collapse by ordinary use.

Second: To provide a corner stay to strengthen the corners of boxes and covers for same, made from box blanks of any de scription.

Boxes in common use, made from box blanks, are not dependable and soon collapse, owing to the lack of stability of their parts,

caused by the insecure and loosely connecting fasteners used in constructing the boxes. The fasteners used consist of a hook on the end of an overlapping part of the box blank and a slit in the adjacent part of the box blank or box wall. To fasten together the parts of the box, the hook is hooked over the edge of the box wall in the slit.

Like all hook fasteners, it is liable to come 5 unhooked at any time and is insecure and loose from the start, to the extent of the depth of the curve that forms the hook. Cmisequently, all boxes made from box blanks where hook fasteners are used, lack rigidity and strength and in ordinary use will soon collapse.

My lock fastener is much better than the hook fasteners now in use in this, that boxes made from box blanks where my fasteners are used, are rigid, strong and durable, and

will not come unfastened or collapse by ordinary use. One great advantage it has over the hook fastener is that the fastening may be made near the box corner, preferably within one inch of the box corner, and the fastening being so near the box corner adds strength to the corner stay, the fastener and the box corner. The fastening parts rest close to the box wall and do not interfere with the contents of the box or the cover.

Serial No. 485,405. v

the corner ofthe box and the notch fastener in position and the parts of the box fastened and locked together.

Figure 3, is an exterior View of a folded corner section of the box, in a folded upright position, showing the lock fastener securing and locking together the parts of the box.

10 designates the main rectangular portion of the blank provided with the end walls 12 and 18 formed by score lines 1 1 and 15. The side walls 16 and 17 are formed by the score lines 18 and 19. At the respective ends of the side walls 16 and 17 are corner stays 20, which consists of flaps extending beyond the ends of the side walls 16 and 17 and which have outwardly inclined edges. The narrow portions of the stays, as indicated at 21, do not come to a point but have widths suflicient to enable the inner ends of the stays to rest against the portion 10 when the end walls and side walls are secured together. It is important that there be sullicient material in the stays or flaps 20 to provide a bearing against the portion 10 so as to brace the perpendicular walls of the box.

The end walls are provided with flaps or tongues 22, the tongues 22 having notches 23 diametrically opposite the notched portions 26 to form the projecting portions 241, as shown, and the heads 25 on the ends of the flaps or tongues. The shape of the head 25 is quite important, the outer edge of each tongue being curved as at 27. The base port-ion 24 of each tongue 22 is cut away so that it will not be quite the width of its supporting end wall. This is to leave space, as at 28, for the portion 21 of the stays and it also permits the box walls, to which flaps 22 are attached, to yield or spring outwardly without tearing or injuring the corners of the box when the fastening parts of the box corners are put in position.

29 are transverse slits in the walls 16 and 17 and at the inner end of each slit is a horizontal slit 129 and a diagonal slit 229.

The length of the slit 29 is approximately equal. to the distance between the notches 23 and 26. This is very important because when the parts are tastened together, the portion 26 rests against the slit 129 and the notch 23 rests against the outer end'of the slit 20 so that there can be no lateral play of the flap or tongue 22 in the slit. This is to prevent the accidei'ital disengagement of the tongue from the slitted portion of its complementary side wall.

It is an important feature of my invention that when the blank is put together in box form the tongues 25 will be onthe inside of the box and thereby prevent liability of the tongues beingtorn off as well as to provide a symmetrical attractive and neat structure. The blank is the same whether the box part resulting therefrom is the bottom or the top, because in order to complete the box, two members are formed from a blank such as shown in Fig. 1 except one is slightly larger than the other and then they are telescoped together.

In connecting the end walls to the side walls, the end andside walls are creased along the score lines 1 15, 1S and 19. Then the tongue. 25 visinrtroduced into the slit 29 andinto the diagonal slit 229, the stay 20 being bent over so thatits horizontal, lateral bottom edge 21 will lie against the blank 10, as clearly seen in F 2.

lVhen the tongue has been introduced into the: box as shown in Figs. 2 and 3, the notch 23 will receive the boxwall at the top end. ofthe-slit 29 and thenotch 26 will lie against the edge of the box wall in the slit 129 so that, there will be no lateral play of the tongue, consequently, the tongue cannot bepulled out.

If they slits-29-were longer than the distance between the notches 23 and 26, there could be lateral play'of the tongues and consequently, they would readily pull out, this beingwhat usually happens with. the. ordinarytonguesand slitted connection in boxes ofi like general structure.

To. I prevent; the. fastening and locking parts ofthe corners ofboxes from be-oming detached when onceoin position as sorlrequently. occurs, with boxes now innse, the fastening and locking. parts in this invention are. so constructed that when the. head of the tongueis through the slits in. the complementaryi box wall and the fastening. and lockingparts are in position, the. fastening and. locking parts are closed and; looked around ,the neck of the tongue so the tongue. istheld, and. retainedin the slitsand the fastening and lockingparts of the corners of boxes are held and retained in position and locked together.

By, reference to Fig. 2 it will be observed that the corner fastening for tile, box providesa rigid, secure attachment, theS' yS 20 serving to reinforce the corners of the box and by preventing distortion ofthe end and side walls, eliminate liability of the tongues 25 twisting out of the slits. vln actual practice I find that after I have fastened the tongues in the slits as shown in Fig. 2, it is. practically in'ipossiblc for the tongues 22 to become detached without very careful manipi'llation of the box, thereby liability of the accidental disengagement is eliminated.

The are on which the curve 27 is formed is designed to allow thetongueor headed portion 25 to easily enteiwthe slit 2,) so that the outer edge of the slit 29will be in the notch 23 and since the, edge-ofnthe notch 2b rests on the edge of the slit-129, it will-be seen that'the fastening will be held secure.

I do not limit myselfsto the exact details of construction shown butreserve the right to make such changes in form, proportion and minor details of construction as properly come within the scope of/myi, invention.

Whatl claim and desire to secure by Letters-Patent is:

l. A box-blank having side walls and cud walls, the side walls having transverse slits and formed with horizontal slits at the. inner ends ofv the transverse slits, diagonal slits extending away, from the angle formed by the. transverse. and horizontal slits, the ends of the side walls having stay flaps, which. when the blank is folded, rests upon the main portion of the blanln and notched tongues on {the ends of the end walls, which are projectable through the transverse slits and the diagonal slits .tointerlock with the side walls, the widths of the. tongues at the notched portions being approximately equal to the length of the transverse slits so that one edge of each tongue will bear. against the outer, endof its. transverse slit and the opposite edge will restagainst the edge of the horizontalslit, the. end-of eachtongue being in the form of ahead to form, a lock.

2. A box blank having sidewalls and end walls, the side walls having transverse slits and formed with horizontal slits attheinncr ends of the transverse slits, diagonal slits extending away, from the. angle formed-by the transverse and the horizontal slits, and notched tongues on the. ends of the. end walls which are projectible. through the transverse slits and the diagonal slits to in terlock with the side walls, the widths of the tongues at the notched portions being equal to the length of the transverse slits, so that one edge of each tongue, willbear against the outer end of its transverse slit, andthe onposite edge will rest againstv the edge of the horizontal slit, the end of eachtongue being in the form of ahead to. form alock.

A box blank. having side walls and end walls, and a tongue extending from one of the box walls, at each corner-ofthe blank,

having cutaway portions or notches that form the head and the neck of the tongue, the other box wall, near each corner of the box, having a transverse slit and termed with a horizontal slit at the inner end of the transverse slit, a diagonal slit extending away from the angle formed by the transverse and horizontal slits, the head of the tongue being projectable through the transverse slit in the adjacent box wall to interlock the adjacent box wall so that when the blank is folded, the tongue overlaps the corner of the box and the head of the tongue enters the transverse and diagonal slits from the outside of the box extending through the slits on the inside of the box, the neck of the tongue being located in the transverse slit, the bottom edge of the neck of the tongue being located on the edge of the box wall in the horizontal slit, the box wallat the top end of the transverse slit being located in the notch in the top edge of the tongue and resting on the bottom of the notch, the transverse, horizontal and diagonal slits being tightly closed and held around the neck of the tongue, so that the head of the tongue cannot be withdrawn from the transverse slit, to retain the box corner in place and the fastening parts of the box corner in position and fastened and locked together.

4-. A box blank having side walls and end walls the side walls having transverse slits and formed with horizontal slits at the inner ends of the transverse slits, diagonal slits extending away from the angle formed by the transverse and the horizontal slits and the horizontal slit extending at about a right angle from the transverse slit and the direction it extends being away from the corner of the box, and notched tongues on the ends of the end walls which are projectable through the transverse slits and the diagonal. slits to interlock with the side walls, and the edges of the box wall. in the transverse and horizontal slits, being located in the notches in the tongues so the tongues cannot be withdrawn from the transverse and horizontal slits and the tongues holding and retaining the corners of boxes in place and the fastening parts of the box corners in position and fastened and locked together.

5. A box blank having side Walls and end walls, a tongue extending from one of the box walls, at each corner of the blank, having eut-a-way portions or notches to form the head and neck of the tongue, the other box wall near each corner of the box having a transverse slit, a horizontal slit at the inner end of the transverse slit and a slitted portion extending away from the angle formed by the transverse and horizontal slit, the head of the tongue being projectable through the opening formed by the slits in the adjacent box wall, the neck of the tongue being located in the transverse slit with the bottom edge of the neck of the tongue resting on the edge of the horizontal slit, the width of the neck being approximately equal to the length of the transverse slit so that when the parts are in position with the tongue resting on the edge of the horizontal slit, the tongue will be held against displacement from the slitted portion of the box which it engages.

ELI P. WILLIAMS. Witnesses PnNLnY H. lVILLIAMs, ARTHUR H. MnLENnAoxnn.

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