Suds Saving or Miser Washers
Were just an attempt to capture the market of housewives for various reasons of their own, still used wringer or other semi-automatic washing machines. Prominent of those reasons was the need (or wish) to save water for reuse.
Ever since fully automatic washing machines appeared on the scene and or semi-automatics with spin baskets, Consumer Reports and others did all they could to discourage the use of *dangerous* wringer washing machines.
Yes, wringer washing machines could be dangerous; but many housewives had other issues to balance on laundry day. Top among them was hot water supply.
Also by the 1950's and 1960's you still had a pretty good number of people who lived through or came up during the Great Depression. The thrifty habits that came out of that event died hard, and some simply saw "dumping" all that hot water and soap/detergent after just one wash (as in an automatic) as wasteful.
Here is a link to a 1950's local newspaper laundry appliance supplement. In it Whirlpool mentions their 1956 model *suds miser* washing machines. Notice the best thing they could say was touting how hot soapy water could be saved and reused... Meanwhile nearly every other fully automatic washing machine was wooing Her Indoors (and His Nibbs who presumably had to pay for the thing) with all their "fully automatic" features.
http://archives.chicagotribune.com/...ite-one-line-it-can-win-you-a-washer-or-dryer
You also notice that not a wringer washer is to be found in that 1956 advertising piece. We know that Maytag and others still produced and sold conventional washing machines in late 1950's, but obviously there was a push to get Her Indoors to upgrade. If you wanted the water reusing/suds savings that a wringer washer offered, you were steered towards the suds saving washers offered by Maytag, Whirlpool and whoever else had.