in fig1 slotted upright posts 20 and 22 support horizontal rails 24 , having a reinforced top flange 94 , and rail 26 , having an outwardly and upwardly extending upper flange 92 for engaging container hooks 28 on storage containers 30 . slotted upright posts 20 and 22 have rectangular slots 32 in which hooks from adjustable locking brackets 34 can be inserted . fig2 shows two parallel upright support post 20 with slots 32 being spaced equally a distance designated in fig2 by the letter a . top rail 26 and intermediate rail 24 mounted respectively on slotted upright 20 , illustrate the manner in which fractional spacing can be attained with use of the invention , since rails 26 and 24 differ in height by the distance designated by the letter b when in one adjusted position , which is only half the distance of a with it being pointed out that the rails can also be adjusted a full increment of distance a . the distinction between the mounting of rails 26 and 24 by locking brackets 34 is best seen in fig3 and 4 , showing the two positions of bracket 34 with respect to their respective mounting rails each of which includes a slot 48 adjacent the upper edge and three equally spaced oval - shaped holes 50 below the slot 48 . in fig2 and 3 , it is clearly seen that the weight of the mounting rail 26 or 24 rests on bracket 34 at two points , namely , 68 and 70 , while the weight of bracket 34 rests upon slotted upright 20 at three points , namely , 72 , 74 and 76 with the uppermost support point 68 between the rail and bracket shifting from the hook 88 in one position to finger 100 in the other position of bracket 34 and the rail . upper bracket hook 88 and lower bracket hook 90 of locking bracket 34 secures mounting rail 26 or 24 to upright 20 . mounting rail 26 is also illustrated in fig5 showing the top mounting rail having forwardly offset top flange 92 extending outwardly and upwardly . the intermediate mounting rail 24 is shown in fig6 having a double reinforced upper flange 94 which extends outwardly and is bent back upon itself . reinforced upper flange 94 is used to support the bottom portion of a storage container , such as container 30 illustrated in fig1 and 2 . both embodiments of mounting rail , namely rails 26 and 24 , have a lower flange 96 , extending outwardly and upwardly . flanges 92 and 96 are constructed to engage a hook provided on storage containers , such as container hook 28 provided on storage container 30 illustrated in fig1 and 2 . fig7 and 8 illustrate two embodiments of adjustable locking bracket , fig7 showing the adjustable locking bracket 34 which has been illustrated in the discussion of fig1 - 4 . bracket 34 has upper bracket hook 88 , lower bracket hook 90 , and horizontal finger 100 for securing a mounting rail of either embodiment illustrated in fig5 and 6 to a slotted upright post , such as post 20 illustrated in fig2 with the finger 100 in the uppermost hole 50 in one adjusted position and in slot 48 when in the fractionally adjusted position . at least two downward bearing points to support a rail to the bracket are present in either of the mounting configurations , as discussed above in connection with fig2 . in fig8 an alternative construction of adjustable locking bracket 102 is shown . bracket 102 has upper bracket hook 104 , lower bracket hook 106 , and horizontal finger 108 in precisely the same relative configuration as the corresponding parts of bracket 34 , but bracket 102 is provided with an s - shaped bend 110 in the region between upper bracket hook 104 and horizontal finger 108 in order to prevent or substantially reduce angular deviation of bracket 102 when placed through a mounting rail , such as rail 26 , and inserted into a slotted upright post , such as post 20 . the outer curves of bend 110 preserve the bracket in a substantially perpendicular relation to the mounting rail . although it is preferred to provide the s - shaped bend 110 in the location shown in fig8 namely , between upper bracket hook 104 and horizontal finger 108 , it is possible to provide the s - shaped bend in the region between horizontal finger 108 and lower bracket hook 106 , or , alternatively , to provide two s - shaped bends in each position . in order to preserve interchangeability between any brackets having one or more s - shaped bends with brackets such as bracket 34 which are substantially planar , it is critical to preserve the relative positions of upper bracket hook , lower bracket hook , and horizontal finger . in both embodiments of the bracket , it is inserted from the bottom by inserting the end of hook 90 or 106 through the appropriate hole 50 in the rail and rocked upwardly toward the rail to insert the finger 100 or 108 through either a hole 50 or slot 48 and upper hook 88 through slot 48 and through the slots in the post 20 to interlock therewith . the foregoing is considered as illustrative only of the principles of the invention . further , since numerous modifications and changes will readily occur to those skilled in the art , it is not desired to limit the invention to the exact construction and operation shown and described , and accordingly , all suitable modifications and equivalents may be resorted to , falling within the scope of the invention .
an upright adjustable rail mounting assembly for adjustably attaching horizontally mounting rails to a pair of slotted uprights by use of an adjustable locking bracket . the rail flanges facilitate mounting of a container assembly provided with means for engagement with the rails . the bracket and rail mounting assembly permit fractional adjustment vertically , and the locking bracket is removable for compact shipping . an alternative locking bracket has a bend to prevent angular disorientation of the bracket with respect to the mounting rail .