CHAPTER ONE
1.1 INTRODUCTION
Protector design is the joining of metals of pipes of the same
diameter. Sizes together in a compound pattern in order to give adequate
protection to a place. Protection of life and property has been a great
cause for alarm to people. It is because people do not want unwanted
visitors into their homes. In order to remedy this situation, people
concluded to use metal burglary proofs protector in their various homes,
metal protections have gained wide acceptances in school factories,
homes etc. They provide solid protection for windows and door and it
also serves to decorate the building. This project will also use the
theory, procedure and design analysis of the moral protector window.
1.2 AIMS
1. It aimed so much at enlightening students especially those in
engineering field such as civil and mechanical engineering in areas of
construction as regards to their profession.
2. It provides a workshop model of a true metal protector and economics of material, labour and procedures.
3. It also help the student to-be salt reliance hide pendent as well as even when they are out of school.
1.3 SCOPE
The scope of this project is to select the best materials draw and design and also construct it
CHAPTER TWO
2.1 LITERATURE REVIEW
Franklin D. Jones (2007) defines metal as solid materials that are
typically hard, shinny, malleable, feasible, and ductile, with a good
electrical and thermal conductivity: Some metals, forms barrier layer of
oxide on their surfaces which cannot be penetrated by further oxygen
molecules and they retain their shinny appearances and good conductivity
for many decades e.g. Aluminum, Magnesium, and steels which are
titanium.
Ranrah Shah (2002) defined metal as a substance that has a brighter
luster and is good conductor of electricity. Metals have varying degree
of hardness, density / malleability and ductility (being malleable) to
be roll out and hammered. Ductility has to do with being drawn out into
Wire. Porter Catherine (2011) also said that a metal has a definite
melting point and will fuse with other metals to form alloys with the
exception of mercury. All metals are solid at ordinary temperature.
Some metals are found in pure state, but most of them are found in
combination with other elements these metals are in the form of
sulphides, oxides, carbonates and silicate, usually mixed with rock and
earthly materials. Some of the common metals found in combination ores
are lead, zinc, iron, copper, chromium, nickel and mercury. Some metals
are so rare hat tons of ore must be treated to get even a small amount
of poured metal, radium is one of these. The
Properties those are undesirable. This why, most of the commonly used today are either alloys or compounds.
2.2 HISTORY
Between (1748- 1814) Joseph Bramah, son of a Yorksire farmer, was one
of the fathers of the machine tool industry whose inventions greatly
contributed to the development in stain borough, Yorkshire. England was
from the family profession of farming to become a cabinetmaker;
apprentice. After completing his apprenticeship, Bramah set up his own
cabinet-making and carpentry shop in London. Joseph Gumming had recently
patented a water-close rote system which Bramah found satisfactory
instating water closet for his customers from (1767-1778). In (1784) the
Inventor Joseph Bramah patented his first burglar proof Bramah lock and
he exhibited the installation in his Piccadilly shop window with a
notice offering a two hundred guinea award to anyone who could pick it
and dismount it after one hour, another very important Bramah invention
was the hydraulic press of (1795). This was the
first practical application of hydraulic principles and opened a
tremendous new source of power to the manufacturers and builders of the
Industrial Revolution.
Bramah was a marvelously inventive man who secured a total of 18
patents. His other inventions included a machine or numbering bank
notes, a wood-planning machine, a device to soda-water machines. He
paddle wheel. Brarnah died in London In (1814).
The present invention has been accomplished to provide a
burglarproof sash window which eliminates the aforesaid problems.
According to one aspect of the present invention each sash of the sash
protector, comprises a metal inner frame sandwiched in between two glass
plate with a metal bars mounted on the inside that prohibit burglars
from breaking in. According to another aspect of the present invention, a
combination lock is installed in one sash so that the user can lock the
sash protector without using a key.
However according to another aspect of the present invention, a
combination lock is installed in one sash so that the user can lock the
window without using a key.
2.3 TYPES OF BURGLARY PROOF
There are various types of metal burglary proof depending on the
instruction arid mode of installation, in Nigeria, four major types of
sectors are in use, and these are:
1. Burglary proof with a door within it,
2. Collapsible burglary proof,
3. Totally removable burglary proof,
4. Suspended burglary proof.
1. Burglary Proof or Protector within It
In this type of burglary proof, the door is part of the
Burglary proof.
This is constructed in such a way that it is locked from within.
2. Collapsible Burglary Proofs:
This is an adjustable type of protector in which the end is locked to
the wall in two or three points with a distance of O.5m from the door.
When opened from the locked end, the burglary proof collapses on the
wall to allow escape or exit.
The locked end may or may not be padlocked. .
3. Totally Removable Protector;
This is hung to the wall from inside the room with the hook, the same
distance as in collapsible above (O.5m) from the end. The hooks
are removed in case of emergency such as fire accident and the
whole burglary proof is removed for exit or escape.
4. Suspended Protectors;
Suspended protectors like suspended ceilings are hung to protector
asbestos, wooden and glass ceilings. They also serve to protect a
building from unwanted visitors from entering through the ceiling. The
suspended protectors like other protectors have, pins that enables them
to be hinged to the wall.