A metallic lockable bookshelf is a rectangular piece metal device and fabricated for the main purpose of artery keeping of book, files audio and vides cassette in homes, offices and libraries etc. as well as retrieval and consultation when needed.
On starting of this project a lot of consideration was done based on the workability of such project, the consideration of material available as well as they choice of the advantages of the material later stetted including research on the regimen properties of the material with at most carefulness if such material chosed is combustible, environmental finally or Harvard an resistance to insects attack like metals instead f wood. Strenuous become the consideration to make the project quite affordable, this in the area of cost of production which was over comer by adopting certain amendment with the need to achieving the shelf in such a way that it become a modern lockable bookshelf which can contain quite number of books and files. It was felted with rollers stands and stoppers for stability at any kept point and easy movement and solidity welded
1.2 DESCRIPTION LOCKABLE BOOKSHELF OF THE MODERN
The modern lockable bookshelf as shown in fig 1.1
Was constructed using 20mm square pipe and gauge 15mm mild steel street/plate and comprises of the totting parts /components:
III. Partitions or rocks.
IV. Roller Stands
V. The doors
In everyday work, an engineer comes across certain material like steel grides. Angle non circular bars, wrought iron, Aluminum etc. which are to be used in fabrication of projects. While selecting a suite as ability t resist stress (tensile stress and comprehensive stress), strewn, elastic limit etc under the external force. It has been observed that under the influence these forces, the material is first deterred and made an the forces and their sheet along with some suitable precutting measures to determine the strength of material and to have a better quality product. As the case may be, this knowledge is very essential for an engineer to enable him design and fabricate his project.
This table below shows the value of elasticity of material under a tensile force
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