Thanks everyone for your kind comments!
how does it cope with tough stains I wonder?
In 1953 probably not very well on tough stains, what makes a big difference well into the 21st century is the detergents we have now are made for low water use machines and they perform much better. The Apex certainly falls under the category of low water use machines and you can even cut the wash fill by half (down to 3.5 gallons) for a more effective use of modern detergents. Everything comes out clean now but I bet that wasn't the case in 1953 when low sudsing detergents didn't perform well compared to the high sudsers. Apex recommended All detergent (Dash wasn't on the market as of yet in '53) as it's bouncing action worked better with a low suds detergent.
Why are these machines so rare?
Apex simply didn't have the market penetration of the big guys in the appliance industry such as GM Frigidaire, Maytag, GE and Whirlpool/Kenmore. The mechanics of the machine is much more simple as it has no transmission.
What motion during washing is done? Is it shaking?
It is nutation like when you spin a coin on its side and it starts to slow down it wobbles.
how does it cope with tough stains I wonder?
In 1953 probably not very well on tough stains, what makes a big difference well into the 21st century is the detergents we have now are made for low water use machines and they perform much better. The Apex certainly falls under the category of low water use machines and you can even cut the wash fill by half (down to 3.5 gallons) for a more effective use of modern detergents. Everything comes out clean now but I bet that wasn't the case in 1953 when low sudsing detergents didn't perform well compared to the high sudsers. Apex recommended All detergent (Dash wasn't on the market as of yet in '53) as it's bouncing action worked better with a low suds detergent.
Why are these machines so rare?
Apex simply didn't have the market penetration of the big guys in the appliance industry such as GM Frigidaire, Maytag, GE and Whirlpool/Kenmore. The mechanics of the machine is much more simple as it has no transmission.
What motion during washing is done? Is it shaking?
It is nutation like when you spin a coin on its side and it starts to slow down it wobbles.