A washing machine is a machine used to wash laundry such as clothes and sheets. Early washing machines included the scrub board invented in 1797 and the rotary washing machine patented by Hamilton Smith in 1858, as most households lacked running water. The first washing machine designed for convenient home use was built in 1874 by William Blackstone, while modern washers now use computer controlled systems to automatically adjust wash cycles for load size.

2. Washing machine is
a machine used to
wash laundry such
as clothes and
sheets

3. The earliest washing
'‘machine'‘ was the scrub
board invented in 1797.
Laundering by hand
involved a lot of hard
work . Water for the
laundry was hand
carried because there
was no running water in
most households

4. In 1858 Hamilton Smith
patented the rotary
washing machine .As
electricity was not
commonly available
until 1930 some early
washing machines
were operated by a
low-speed gasoline
engine

5. In 1874 William
Blackstone of Indiana
built a birthday present
for his wife. It was a
machine which removed
and washed away dirt
from clothes . This was
the first washing
machine designed for
convenient use in the
house

6. Modern washers use a
computer controlled
system for controlling
load size and
automatically adjusts
the wash cycle

7. Thank you for attention