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How a Washing Machine Works. LapWoon Keung 2005. What is a Washing Machine. A washing machine is an machine that washes clothes, linen Was made to help wash clothes easier. Steps to Cleaning Clothes. Decide on: Load size (small, medium, large, x-large) Temp How machine should agitate

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what is a washing machine
What is a Washing Machine
  • A washing machine is an machine that washes clothes, linen
  • Was made to help wash clothes easier
steps to cleaning clothes
Steps to Cleaning Clothes
  • Decide on: Load size (small, medium, large, x-large)
    • Temp
    • How machine should agitate
    • Time
steps to cleaning clothes1
Steps to Cleaning Clothes
  • Fill tub with clothes; Fills with water; Agitator starts to spin;
  • After agitating
    • Drains water
    • Spins clothes
    • Refills; agitates more
    • Drains
    • Spins more.
history of the machine that washes
History of the Machine that Washes
  • Before washing machines people cleaned clothes in the stream
  • Then it’s beat with rocks or they scrubs clothes clean on a washboard.
history of the machine that washes1
History of the Machine that Washes
  • First electronic: American - Alva J. Fisher - 1901
    • Had Electronic vertical-tube machine with built-in turbo washers or Vertical axle fitted with blade.

Alva J. Fisher - “Thor”

history of washing machine
History of Washing Machine
  • Replaced steam boiler and the washtub; wooden bins that was filled with soap hot water
  • First mechanical washing machine used heavy blades
history of washing machine1
History of Washing Machine

1915 Crank to turn agitator

  • Principle of tossing clothes inside in a rotating cylinder
    • Used in 1850 in a English laundry.
    • Used in 1840 by the French: Industrial model, double sheathing, 4 compartments, driven by a crank.
inside of a washing machine
Inside of a Washing Machine
  • Two Steel Tubs
    • Outer = Seals water. Mounted so that inner can move without banging.
    • Inner = Holds clothes and with the agitator in the middle with holes around the side of the tub. Attached to gearbox
inside a washing machine
Inside a Washing Machine
  • There are 3 pulley
    • One side of frame moves up
    • Other side frame goes down
  • Has Damping System
    • Uses friction to absorb force of the dangling pulleys
inside a washing machine1
Inside a Washing Machine
  • Each four corner has mechanism that:
    • Works like disc brake
    • Attached to spring
    • Squeeze two pads against metal plate
    • Attached to black frame
  • Jobs
    • Fills washing machine with correct temperature of water
    • Re-circulate water from bottom of the wash tub back to the top, during wash cycle
  • Hook for two water lines on back
    • Cold
    • Hot
    • Hooked to the body of the solenoid valve
  • Solenoid valve
    • Feed into a single hose
    • Hot valve, cold valve or both valve will open
  • Before hose release water into tub, it is send through anti-siphon device
    • Prevent water from being sucked back into the water line
    • White plastic device has big opening that allows air in
    • Suction would only get air, not water
  • Water Inlet
    • Water enters that way
    • Nozzle to the right: Overflow port
      • Connected to pipes that dump water onto floor
      • Goes to floor instead of the tub and motor
  • Re-circulates water and drains it
  • Has 2 separate pump in one
    • Bottom half: Hooked to drain line
    • Top half: Re-circulates wash water
  • Vanes of the bottom layer of the pump: Push water around
  • The pump can reverse direction
    • Spins different way while doing different jobs.
  • Clutch is hooked up to pump
  • Drain hose loops all the way to the top of machine
    • One end is hooked to bottom of tub
    • Open to atmosphere
drive mechanism
Drive Mechanism
  • A piece of rubber seals the outer tub to the gearbox
  • Has 2 jobs
    • Agitate clothes: Moving them back and forth inside tub
    • Spin Tub to force water out
inside the gearbox
Inside the Gearbox
  • Pulley
  • Pie-shaped gears has link on it
  • Washer goes to spin cycle - locks up, everything spins at same speed
  • Gears - angled teeth
  • Cycle switch
  • Speed and temp. control switch
  • Water level control switch plumbing
  • Designed before micro-controllers were being used in appliances
about me

Ill Nino

About Me


  • I love music, especially hardcore metal rock. Some bands are: Ill Nino, Dragpipe, Bush, Boiler Room, Brand New, Motograter, Project 86, Powerman 5000, Drowning Pool, Full Devil Jacket, Puya, Adema, Clutch, Coal Chamber, The F-Ups, The Kittie, Korn, SOAD, The Union Underground, Sworn Enemy and Mushroom Head, plus more.


Brand New

The Union Underground

Powerman 5000

Boiler Room

Project 86


  • “Washing Machine.” The World Book Encyclopedia. 2003ed.
  • Walerie-Anne Giscard d’Estaing. The Second World Almanac Book of Invention. New York; Pharos Book, 1986.
  • Karim Nice. “How Washing Machine Work.” How Stuff Works. 1998-2005. How Stuff Works. May 3, 2005 <>