referring now to the drawings in greater detail , fig1 and 2 show a prior - art , archive storage - rack assembly 10 , upon which the present invention is an improvement . the prior - art , archive , storage - rack assembly 10 includes a main frame made up of four corner - columns 12 . each corner - column 12 is comprised of a right - angle piece having a first , vertical column - section 14 , and a second , vertical column - section 16 . each corner - column helps to support a plurality of horizontal , vertically - spaced - apart storage - shelves 18 , only one being shown in the drawing . the corner - columns 12 are arranged in pairs , in that the two corner - columns supporting the same end of a shelf are buttressed together via braces to form one unit comprised of a pair of corner - columns 12 , by which added stability and strength is achieved . each corner - column 12 projects substantially upwardly from the floor of the archive - warehouse , and in close proximity , to the ceiling thereof . upon each shelf 18 there are arranged and supported archive storage - boxes , containing old books , manuscripts , papers , and the like , to be warehoused . typically , the archive - warehouse is part of a university , college , government agency , and the like . in the prior - art structures , in order to support the ends of each shelf via the corner - columns 12 , there are provided a plurality of individual , separate shelf - clips 20 . each shelf - clip 20 has a downwardly - extending , main portion 22 , from the rear of which project a plurality of bent pieces , or tongues , 24 , which extend outwardly and downwardly at an acute angle with respect to the vertical plane of the rear surface of the main section 22 . these tongues 24 are spaced a specific , vertical distance apart from each other , in order to match the vertical spacing between the holes formed in the corner - column section 14 for passage therethrough , whereby each shelf - clip is firmly held and supported by a respective corner - column . projecting upwardly from the main section 22 is a shelf - engaging finger , or projection , 26 , which projects upwardly through a slot formed in the bottom corner of each shelf 18 adjacent each end of the shelf . the finger 26 projects substantially upwardly through the interior of the shelf - end , until the top , supporting surface 26 &# 39 ; thereof abuts up against the interior , lower surface 19 of the upper section of the respective end of the shelf , with the rear face of the finger 26 ( shown in dotted lines in fig1 ) abutting against the interior - facing side - surface of the end wall 19 . with four such shelf - clips 20 provided per shelf , the four corners of the shelf 18 are , thus , supported thereby . in order to reinforce the substantially hollow shelf 18 , there are provided two , shelf - reinforcing angle - brackets 30 , one such angle - bracket 30 for each end of a shelf that is engaged and supported by two shelf - clips 20 . each angle - bracket 30 extends along the depth of the frame ; i . e ., each angle - bracket extends in the direction from the front toward the rear of the pair of corner - columns 12 which are buttressed , or connected , together . each angle - bracket 30 has an upper , horizontal section 32 which engages against the interior , lower surface 19 of the upper section of the respective end of the shelf , and a lower , vertical section 34 that engages against the interior - facing side - surface of the end wall 19 &# 39 ;. the length of each angle - bracket 30 , as seen in fig2 is less than the length of the end of the shelf proper , so that the interior , lower surface 19 and the interior side - surface of the end - wall 19 &# 39 ; have ample room for the reception of , and engagement with , the top and rear surfaces of the corner - fingers 26 of the shelf - clips 20 , respectively . also associated with each , supported end of the shelf 18 is an elongated , box - guide member 38 . the box - guide member 38 has an upper , vertical , flat section 38 &# 39 ; that projects above the upper surface 21 of the shelf , which upper section 38 &# 39 ; serves as a guide for the boxes placed on the shelf adjacent an end thereof . the vertical section 38 &# 39 ; allows one to push each archive - box rearwardly into the depth of the shelf , while ensuring that the archive - box remains properly aligned and squared , in order to achieve the maximum , storage capacity . 0f course , the vertical section 38 &# 39 ; also serves as an end wall for preventing the boxes on the shelves from accidentally falling off the ends of the shelves during and after placement on a shelf . the box - guide member 38 also has a middle , horizontal , transitional section 39 that abuts against a portion of the upper surface 21 at the end of the shelf , which transitional section 39 turns into a lower , vertical , fastening section 40 which is parallel to , and abuts against , the outer , lateral surface of the end - wall 19 &# 39 ; for approximately the height thereof , as seen in fig1 . the overall length of the upper , vertical section 38 &# 39 ; is greater than the sections 39 , 40 , as seen in fig2 so that the interior , lower surface 19 and the interior - facing side - surface of the end - wall 19 &# 39 ; have ample room for the reception of , and engagement with , the top and rear surfaces of the corner - fingers 26 of the shelf - clips 20 , respectively , as described above . the box - guide member 38 and the angle - bracket 30 for each , supported end of the shelf are affixed to the respective shelf - end via rivets 42 , or the like , with each rivet passing through a portion of the end - wall 19 &# 39 ; sandwiched between the lower sections 34 and 40 of the angle - bracket and box - guide member , respectively , referring now to fig3 - 11 , the archive , storage - rack assembly of the invention is shown , and indicated generally by reference numeral 50 . the assembly 50 has a main , supporting frame 52 made up of four , vertical corner - supports , or posts , 54 , 56 , 58 , and 60 . these posts differ from the corner - columns described above with respect to the prior art . each , vertical post 54 , 56 , 58 , 60 has a substantially quadrilateral cross section , with a series of equally - spaced holes 51 formed along the interior - facing , vertical surface thereof , as seen in fig3 , 6 , 9 and 10 . the lower end of each post has an enlarged base - member 53 , with the base - members of the posts 54 , 56 projecting toward each other , and the base - members of the posts 58 , 60 projecting toward each other , as clearly seen in fig3 whereby the main frame is stabilized . the posts 54 , 56 form one unit - pair of posts and are connected together by horizontal cross - beam members 62 , 64 , and angled brace - member 66 . the two posts 58 , 60 are similarly connected and reinforced . to accommodate these bracing members , the mutually - facing surfaces of the two posts of each unit - pair are provided with an elongated , vertical groove , or slot 51 &# 39 ;, as seen in fig3 by which the ends of bracing members enter into the hollow interior of the respective post , for fixed anchoring therein by any conventional technique . the number of cross braces 62 , 64 , and angle - braces 66 may , of course , be many more , depending upon the overall height of the assembly 50 . typically , the assembly 50 will extend from the floor to the ceiling of an archive - warehouse , so that the height of the posts 54 , 56 , 58 , 60 will be very great , requiring the bracing pattern 62 , 64 , 66 repeated many times over along the full height of the assembly . in addition , of course , the archive - warehouse will have many like - assemblies 50 placed therein . typically , the assemblies 50 will be placed back - to - back in pairs , as it is conventionally known to do . fig1 shows such a pairing of assemblies 50 . it will be noted that each assembly of fig1 is of a very great height , with the repeating , bracing pattern above - described shown in detail . at the top of such a structure , rigidity beams 53 &# 39 ; are provided , which run perpendicular to the length of the horizontal cross - braces 62 , 64 . the assembly 50 supports a plurality of horizontal shelves 70 by means of two - clip - units 72 , 74 . each shelf clip - unit 72 , 74 is best seen in fig4 - 7 , and includes elongated , vertical , securing portion 76 in which are cut , or punched , exteriorly - projecting tongues , or fingers , 78 at each end of the securing portion 76 . in the preferred embodiment , two such fingers 78 are provided at each end in a vertical row , with the fingers 78 being spaced vertically apart to correspond to the vertical spacing between the holes 51 formed in the lateral , interior - facing , vertical surfaces of the four corner - post posts 54 , 56 , 58 , 60 . each securing portion 76 has a first , downwardly - sloping section 76 &# 39 ; which turns into a substantially vertical section 76 &# 34 ;. the sloping section 76 &# 39 ; projects through a respective one of the holes 51 of a respective corner - post with which it is associated , while the vertical section 76 &# 34 ; abuts against , and engages , the interior wall of the corner - post between adjacent holes 51 , as best seen in fig5 . each clip - unit 72 , 74 is supported by two corner - posts 54 , 56 and 58 , 60 , respectively , by aligning the ends thereof with the posts , so that the vertical sections 76 &# 34 ; of the securing portions 76 are positioned directly in front of holes , after which the clip - unit is pushed against the respective posts and forced downwardly so that the vertical sections 76 &# 34 ; enter into the holes aligned therewith , and then grab the interior wall of the post , as the unit is forced downwardly . each clip - unit 72 , 74 also has an elongated , lower , horizontal , shelf - supporting portion 80 , upon which rests , and is supported , the bottom of an end 70 &# 39 ; of a shelf 70 . each shelf 70 has a top surface 71 , an annular , side surface 69 extending downwardly from the circumferential edge of the top surface 71 , and a horizontal , partially - interrupted , annular , bottom lip 69 &# 39 ;, as seen in fig8 . as seen in fig5 and 6 , each shelf - end 70 &# 39 ; is made up of a lateral end - wall 70 &# 34 ; forming part of the annular , side surface 69 , and the adjoining sections of the top surface and bottom lip . the horizontal , shelf - supporting portion 80 contacts and supports bottom surface 73 &# 39 ; along the length thereof , which surface 73 &# 39 ; is part of the annular , bottom lip extending depth - wise along the shelf , in a direction between the two corner posts of a unit - pair of corner - posts . the shelf - supporting portion 80 also contacts , and supports , the length of the lower edge - surface 82 of the lateral end - wall 70 &# 34 ;, as seen in fig5 and 8 projecting upwardly at each end of each clip - unit 72 , 74 , is a vertical , retaining tongue - clip , or ear , 84 , which tongue - clip 84 is in vertical , center alignment with the holes 51 of the main portion 76 of the respective end of the clip - unit 72 or 74 . each tongue - clip 84 is cut , or punched , from a bottom section of the end of the main portion 76 and a rear section of the horizontal , shelf - supporting portion 80 , as best seen in fig6 whereby there is provided an entrance for the insertion and reception of the thickness of lateral end - wall 70 &# 34 ; of a shelf - end 70 &# 39 ;, by which the shelf - end is retained . in order to allow for the insertion of each tongue - clip 84 into the hollow interior of a shelf , each shelf - end 70 &# 39 ; is provided with a lower , corner - opening 88 , best seen in fig8 which opening 88 is formed by the interruption of the bottom , annular lip 69 at the bottom , four corners of the shelf . each tongue - clip 84 is formed into a wave - shape , or sinusoidal - shape , to form an exteriorly - facing bent - portion 84 &# 39 ; whose apex actually contacts a portion of the interior - facing surface of the lateral end - wall 70 &# 34 ;. this shape of the finger - clip increases the resilient , retention - capacity of the clips by causing clockwise , pivotal movement of the finger - clip , when viewing fig5 as a lateral end - wall 70 &# 34 ; is inserted therepast . it will be noted that the clip - unit of the invention performs all of the functions of the prior - art assemblies , but in a much easier , safer , and stable way , in addition to performing other functions not performed by the prior art , as set forth infra . the main , elongated portion 76 not only serves as the means for mounting the fingers 78 for insertion into holes 51 , but also serves as the box - guide via the portion thereof protruding above the top surface 71 , as seen in fig5 . the horizontal portion 80 serves the shelf - reinforcement function of the prior art , in addition to providing part of the tongue - clip 84 by which the shelf proper is actually supported . the tongue - clips 84 serve the function of the supporting clips of the prior art , but without the downwardly - projecting mounting section of the prior art used for mounting the clip to a corner - column . thus , it may be seen that the clip - unit of the invention not only performs all of the functions performed by the prior art , but does so in a much better , easier and more productive manner . the additional advantages of the clip - unit of the invention are as follows . the shelf 70 itself need not be pre - assembled prior to its emplacement in the archive - rack assembly , whereas in the prior art , both the box - guide and the shelf - reinforcement member had to be affixed to each , lateral shelf - end before emplacement . this aspect of the invention which is not only time - saving and cost - saving , but also allows for a lighter - weight shelf unit for easier handling . in addition , since the main , elongated portion 76 not only serves as a box guide and a mounting frame for attachment to a corner - post , but also contains the shelf - finger - clips 84 proper , there is no downwardly - projecting mounting section for the clip 84 , as is present in the prior art , which prior - art , downwardly - extending mounting section takes up valuable storage - space . moreover , since the corner - posts of the invention are quadrilateral in cross section , and not a right - angle piece column of the prior art , the box - guide portion of the main elongated portion 76 of the clip - unit of the invention may lie flush against the interior - facing , lateral face of a corner - post 54 , 56 , 58 , 60 of the invention , which is not the case in the prior art . this flush mounting of the invention increases the amount of available storage - space on the shelves , and allows the entire length of the shelf to be available for supporting boxes , unlike the prior art , where the lateral ends of each shelf were used up for mounting the individual , separate box - guide members and shelf - reinforcing members . in addition , whereas in the prior art , each independent , shelf - engaging clip must be made substantially long , wide and thick , since it supports the weight of a shelf - corner by engaging against a lower surface portion of the top surface of the shelf , the tongue - clips of the clip - unit of the invention need only be made relatively shorter , narrower , and thinner , since the weight of the shelf is borne by the entire clip - unit of the invention , including the shelf - reinforcement supporting portion 80 . one additional , and very important , advantage of the invention is that each shelf 70 may be emplaced in the frame by just one person , since the - shelf - supporting portion 80 of each clip - unit extends along the full depth of the frame . as is depticted in fig9 one person may slide a shelf 70 rearwardly into the depth of the frame by resting the rear part of the shelf on the pair of opposite shelf - supporting portions 80 , and , while lifting the forward part of the shelf , pushed the shelf rearwardly until the front and rear corners are aligned with the front and rear exteriorly - projecting tongues 84 , respectively , at which point the shelf is dropped in place , with the tongues 84 entering into the interior of the shelf via the openings 88 , as described above . it is noted , the front - corner tongues 84 serve as rests upon which the lower bottom - lip surface 73 &# 39 ; may rest as the shelf is pushed rearwardly into the frame , as seen in fig9 which allows the person to rest at intervals , if desired . fig1 shows a shelf 70 at the end of its insertion , when the corners thereof are vertically aligned above the exteriorly - projecting tongues 78 . while a specific embodiment of the invention has been shown and described , it is to be understood that numerous changes and modifications may be made therein without departing from the scope , spirit and intent of the invention as set forth in the appended claims .
an archive , storage - rack assembly which is relatively easy to assemble , which provides considerable space - savings , which is relatively less costly to make , and which is relatively more stable . the archive storage - rack assembly of the invention is provided with four , specially - designed , corner - column supports . operatively , and removably , associated therewith are shelf - clip units for supporting shelves . each shelf - clip unit is one integral unit having two , end clip - sections for placement into respective openings of two , corner - column supports and for supporting a shelf - corner , an elongated , reinforcing angle - bracket section integral with , and interconnecting , the two , end - clip sections , and an elongated , box - guide section integral with , and projecting upwardly from , the elongated , reinforcing angle - bracket section . each clip - assembly has a length extending in the direction of the depth of the rack - assembly , with a lateral pair of end - column supports supporting it via the two , integral , end - clip sections . since the clip - assembly is one , complete , integral unit , it is assembled directly to the column - supports , after which , a shelf is placed thereon , in contrast to the prior art , where the individual component parts must first be fastened to the shelf proper .