39 of angle 31 is affixed to channels 14 by bolts at 33 the vertical leg 34 of angle 32 is affixed to channels 14 in a like manner the horizontal legs 35 and 36 39 of angles 31 and 32 respectively are cut away to receive the outermost channels 14 of each frame elongated cross plates 36 in the nature of elongated links are secured by bolts as shown in the positions of fig1 on both sides of the rack bolts 37 are used for the attachment to the vertical legs of the angles 23 24 31 and 32 more specifically certain sets of links 36 extend between vertical legs 30 and 34 on one side of the rack and other sets of links 36 extend between vertical legs 29 and 32 39 on the other side of the rack the centers of each pair of links 36 are bolted to each other at 37 39 the foregoing structure provides an extremely solid rack for storing a plurality of different sized rod like members in openings 39 defined by the intersection of columns 14 and beam like members 16 a roller 40 is mounted for rotation behind the upper edge 17 of each beam like member 16 in each opening 39 and the upper portion of roller 40 extends slightly above upper edge 17 fig8 the exact distance in this particular instance being about 1 8 of an inch the aligned rollers 40 at each level of each frame 12 are supported in the following manner a.