• The Construction And Fabrication Of Metal Booksheet

  • CHAPTER ONE -- [Total Page(s) 2]

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    • THE FRAME
      The frame shown in fig.1.2 is the skeleton of the whole shelf, it is made of 25mm square pipe and 25mm (1) by 50mm (2) rectangle pipe.  The frame was first erected together by mean of welding before the sheet was covered at the back, side, top and the partitions.
      The frame was design to withstand the stress that will be develop on it due to the weight of sheet metal and load on each partition.
      THE SIDE
      The side as shown in fig 1.3 is made up of a mild steel of 1.0mm thick with height 1473mm and length 501mm.  It was welded to the frame (at an angle 900).
      DIAGRAM
      THE DOOR
      The metal bookshelf has two doors, the left an d right doors which are covered with metal net or wire gauze respectively shown in fig 1.5.  the doors was constructed with 25mm (1) square pipe and covered with wire gauze to allows the user to view inside the shelf, to know if the particular book or file he/she is searching for is in that particular bookshelf.
      DIAGRAM
      THE BACK
      The back as shown in fig 1.4 is made or mild steel sheet of thickness 1.0mm, 1473mm by height and 122nmm in length and was also welded diagonally to the frame (at an angle 90).     
      THE TOP OR PLANE
      The top as shown in fig 1.6 is made up of a mild steel sheet of thickness 1.0mm and 1224mm length by 501mm width and it is also welded diagonally to the frame. (i.e. at angle 900)
      DIAGRAM
      THE STAND
      The stand were made from a rectangle pipe and a square pipe, that is, the two back stand were made from square pipe while the two front stands were made from the rectangular pipe.  This stand were extended from the frame work to enable stronger gripe, avoid bending, breaking and also to avoid slip.
      The stand add to the height of the metal bookshelf to total of 1525mm in height and there are four stands under the bookshelf.
      THE PARTRITIONS
      The partitions were design to be able to contain large number of books.
      They are measured 355mm by height, 1222mm by length and 470mm by breath.  The material used for the partitions was mild steel plate of 1.2mm thick was welded to the frame work of the partitions.
      The volume of the partition
      = l x b x h
      = 1222 x 470 x 355
      = 203, 890, 700mm
      AREA OF PARTITION
      = 2(lb + bh + lh)
      = 2(1222 x 470) + (470 x 355) + (1222 x 355)
      = 1,749, 340mm.
  • CHAPTER ONE -- [Total Page(s) 2]

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    • ABSRACT - [ Total Page(s): 1 ]In our society today reading and writing has taken its roll as a way of measuring human knowledge.  Knowledge could only be obtain successively by the use of books for research but unfortunately because of hard time, books have because very expensive.This has called for preservation of books already purchased, whether in the public library school or in the house hold so that it can use for future reference.  These could only be done by stocking books systematically in a bookshelf where by it c ... Continue reading---