Check out these Washing Machine Technology images:

SEK Tractor 2009 – Fairbanks Morse

Image by jondresner
Another washing machine mower, I think.

BPorh405

Image by rojabro
domestic exhibits at Bletchley Park. An array of irons. We had a washing machine similar to the one you can see here, with a powered wringer, which could be used to lift the washing out of the tub, by feeding a corner between the rollers.

Electrolux Design Lab – Lichen Guo – Finalist 2010

Image by Electrolux Design Lab
Lichen Guo, Zhejiang University of Technology, China

Check out these Washing Machine Technology images:

steel

Image by Joost J. Bakker IJmuiden
Steel

Steel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten. Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but is also less ductile.

Alloys with a higher carbon content are known as cast iron because of their lower melting point and castability. Steel is also distinguished from wrought iron, which can contain a small amount of carbon, but it is included in the form of slag inclusions. Two distinguishing factors are steel’s increased rust resistance and better weldability.

A few nice Washing Machine Technology images I found:

Magnetic core memory – 1x magnification

Image by ttstam
The very first computer RAM ever made relied on this technology. At each of the sites where the wires cross there sits a little magnetic donut, each smaller in diameter than your average pencil lead.

I bought this piece of computing history on eBay.

The inventor of this technology is Dr. An Wang, who later on went to found Wang Laboratories, an early powerhouse in electronic calculators, remote terminals, and word processors.