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ABSTRACT

Knowledge could only be obtained successively by the use of books for research. This can be achieved only by preserving books already purchased. As a result we fabricate a metallic shelf made up of metallic sheet. Precisely mild steel sheets. The mild steel used for the fabrication of the shelf is 1.5mm (16gauge) mild steel. The shelf is made up of 3 partition. In fabricating the metallic shelf several process where involved. We plundered on the material to be used that can hold the number of the books i.e. the strength of the material. Thereafter accurate measurements of the mild sheets were made we also considered the rigidity of the metallic shelf. This led us to using square pipes for the support of the shelf. The square pipes were also measured to give the dimensions use. The already cut square pipes were used form the frame by welding it together. Then the already measured and cut mild sheets were also welded to the frame. The doors are made up of the square pipes and wire gauze welded together. The shelf was also painted to give good outlook after smoothening and filling. Rollers were also fixed beneath to enhance good and easy movement of the shelf due to its weight.

CHAPTER ONE

1.1   INTRODUCTION

A bookshelf is an invention with partitions where books and files are packed in offices, libraries and even homes. A bookshelf can be made of wooden material or even glass materials. They could be dismountable and undismountable. In our own case we decided to fabricate an undismountable metallic bookshelf. Certain advantages were considered before embarking on the construction of the undismountable metallic bookshelf. An undismountable metallic bookshelf of built wire metals have a longer life span and will serve its purpose. Also, loss of parts many dismountable bookshelves led us into considering one with the parts intact. Therefore, we decided to construct the undismountable type.

This type of bookshelf is fabricated although with metals. The metal used is the mild steel. Squares were also used for the framework being welded together. The importance of the skeletal framework is for it to withstand stress that will be created by the load on the material.

In fabrication, the frame was first erected before making the sides and the partitions with the mild steel material. The mass and volume of the books to be contained by the partitions were considered before they were erected.

1.2    DESCRIPTION OF THE BOOKSHELF

The description of the bookshelf is as shown in fig. 1 it is made up of the following parts.

1.  The sides

2.  The back

3.  The partitions

4.  The framework

5.  The front.

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