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Batteries design and initiation, Lecture notes of Mechanical Engineering

introduction to batteries building,usage and design for their implementations on various areas. About

Typology: Lecture notes

2022/2023

Uploaded on 11/06/2023

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REPUBLIQUE DU CAMEROUN
PAIX-TRAVAIL PATRIE
MINISTERE DE L’ENSEIGNEMENT SUPÉRIEUR
PKFOKAM INSTITUTE OF EXCELLENCE
Dignity-Faith-Responsibility
Prep-semester Fall 2023
CHAPTER V & CHAPTER IX
By: MBAMFON FOSSO, MEKAMTIO, EMMANUELLA, KUETCHE
DANIELLE, NJI WINSTON
Supervisor: Mr. TIMOH WILLIAM CHICK
Academic year: 2023-2024
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REPUBLIQUE DU CAMEROUN

PAIX-TRAVAIL PATRIE

MINISTERE DE L’ENSEIGNEMENT SUPÉRIEUR

PKFOKAM INSTITUTE OF EXCELLENCE

Dignity-Faith-Responsibility

Prep-semester Fall 2023

CHAPTER V & CHAPTER IX

By: MBAMFON FOSSO, MEKAMTIO, EMMANUELLA, KUETCHE

DANIELLE, NJI WINSTON

Supervisor: Mr. TIMOH WILLIAM CHICK

Academic year: 2023-

The Distaff & Spindle

Distaff

Origins

● It is the oldest spinning machine whose main advantage was its portability.

○ It reached Europe via the Middle East in European Middle Ages.

How it works

○ A distaff is about 3 feet (0.9m) long. It is used to hold the unspun fibers of flax,

wool or cotton to keep them untangled.

Spindle

How it works

○ The spindle is a rotating rod about 12 inches(0.3m) long in which fibers are

twisted to form yarn or thread.

■ It may have a hook or groove to guide the yarn and a whorl which affects the

momentum of the spindle

● The overall shape taken by the thread on the spindle is called the cop.

Spinning Jenny

Who made it

○ It was invented by James Hargreaves, an Englishman, in 1764.

Inspiration

○ He was inspired to build this machine after seeing his wife's spinning wheel fall over and

the spindle continue to spin.

How it works

○ The machine used eight spindles onto which the thread was spun, so by turning a single

wheel, the operator could spin eight threads at once.

○ The rovings were wound on pins, and each roving extended across the jenny to the

opposite spindle.

Efficiency

○ One person could spin as much yarn as 20-100 people using old spinning wheel

Riots

Spinners were scared to lose their jobs

Spinning Jenny and industrial revolution

○ Pioneered the factory system of cotton manufacturing

The Water Frame

Who was Richard Arkwright?

Richard Arkwright, an Englishman born on December 23, 1732.

○ Youngest child in a poor family of 13 children

Key terms

○ Warp

■ Warp is positioned lengthwise (vertically)

■ The warp is a stronger thread than the weft

○ Weft

■ Is inserted over and under the warp.

How it works

○ The water frame used water power from a river to turn a water wheel

○ The energy produced by this wheel was transferred to individual frame machines

in a factory via a series of gears.

■ .It spun wheels attached to the frames, and this rotary motion, spun the

spindles of thread

● Which was processed into yarn

○ Then turned into final product by weavers

Advancements

○ It replaced the spinning wheel in factories

The Telegraph

The inventor

○ Samuel Finley Breese Morse

○ Was born in 1791

○ Charlestown, Massachusetts

Education

○ He attended Phillips Academy and later Yale College

Interests

○ Morse developed a keen interest electricity and electric batteries

■ One of his physics teachers, conducted an experiment sending

electricity through a chain in a dark room, which fascinated

Morse

■ Morse attributed this experiment as the initial inspiration for

his invention of the telegraph.

Morse the artist

Art in College

○ Samuel Finley Breese Morse started made

miniatures in college

Studies

○ Studied art in London for 4 years with Benjamin

West

■ Benjamin West a famous historian artist.

Return to US

○ Opened a studio in Boston

○ Painted Judgment of Jupiter which garnered

considerable attention

Success in miniatures

○ Became a successful wandering artist in Vermont

New Hampshire and Charleston, South Carolina.

Setbacks

○ Failed to take up painting historical pictures.

Back to reality

Restarted portrait painting again

Which eventually made him the greatest

artist in America.

Future success

Became leader of National Academy of Design

Although he was never satisfied

Kept travelling europe to create more art

Making the first Instrument

Return to Europe

○ Morse spent all his time on the Electric Telegraph

○ Although he was the most successful paint in america he only painted

enough to earn a scanty living

● Revealing the instrument

○ Morse publicly revealed his Electric Telegraph in September, 1837.

○ The first instrument was slow and clumsy

His telegraph code

○ His telegraphic code was simple

■ One dot "" stood for"1 ". Two dots "*" stood for"2 ". One

dot "*" and a dash "-" stood for "6, so on for each numeral of

zero

○ Morse used the electromagnet of Sturgeon Henry to record signals in

his system.

■ While Steinheil's electric telegraph and Wheatstone used a

magnetic needle.

Improving the telegraph

Partners and their roles

Partnered with Professor Gale, of New York University

■ Worked on electric batteries

And Alfred Vail

Furnish the money needed

Improvements

In the fall of 1838, Samuel Morse developed Morse Code

Which assigned a set of dots and dashes to each letter of

the English alphabet and numbers.

This Code allowed for simple transmission of text over telegraph

lines through electrical signals

The instrument now wrote dots and dashes for the letters

and numbers, instead of using V-shaped figures.

■ Professor Gale improved the batteries to send an electric

current through ten miles of copper wire.