Thread Number: 15117
A couple of unusual dishwashers - early 1960s 		[Down to Last]

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Post# 255622   12/21/2007 at 13:07 (5,964 days old) by turquoisedude (.)        

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I have 'vintage kitchen planning fever' and just got a 1961 Better Homes and Gardens Guide to Better Kitchen Planning yesterday. I spotted this article on diswashers showing two machines I have never seen before. Anyone know who made them?? The full-size one with the 'radial spray arms' reminds me of a Tappan, but I don't ever recall them using the side-mounted wash arms...




Post# 255649 , Reply# 1   12/21/2007 at 16:29 (5,964 days old) by laundromat (Hilo, Hawaii)        

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I believe the side spray arms were from Ling-Tempko?????or something like that.I may be havin a brain fart!LOLPosibly Preway

Post# 255656 , Reply# 2   12/21/2007 at 17:27 (5,964 days old) by jeff_adelphi (Adelphi, Maryland, USA)        
Side-mounted wash arms!

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My brother has in his collection a Preway dishwasher that has full size wash arms on both sides of the tub. It has a gas burner inside a stainless steel tube in the sump area to heat the water, 150F in the wash and first rinse, and 180F in the second rinse. No dry heat was needed. They were sold by the gas company stores around here.

Post# 255664 , Reply# 3   12/21/2007 at 18:38 (5,964 days old) by fnelson487 (Palm Springs, CA)        
Preway

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Wasn't that the dishwashers that the Clampett's had in the "Beverly Hillbillies"?

Post# 255691 , Reply# 4   12/21/2007 at 22:39 (5,963 days old) by appnut (TX)        

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Yes it was

Post# 255709 , Reply# 5   12/22/2007 at 01:34 (5,963 days old) by tomturbomatic (Beltsville, MD)        

The dishwasher mounted under the cabinet is the Ling-Temko. It uses the washing mechanism of The James. It has a spring wound timer that is turned to the position farthest from "OFF" to start the cycle. It fills with water for the wash and then fills slowly to dilute the wash water as it transitions from washing to rinsing. The last stage in the cycle fills the water chamber in the steam generator. The steam is fogged over the dishes where it condenses giving the benefits of a distilled water rinse. The condensing steam heats the dishes so they dry rapidly and without spots or mineral deposits. The dishwasher came in three capacities, 6, 8 or 10 place settings, IIRC. A portable version rolled around on what looked like a stand for a portable TV. The builtin models were usually gravity drain. The portable probably had a drain pump.

Post# 255736 , Reply# 6   12/22/2007 at 05:09 (5,963 days old) by askomiele (Belgium Ghent)        

Seems to me a very economical way to wash dishes with a fast cycles less water and energy or am i wrong?

Post# 255811 , Reply# 7   12/22/2007 at 15:48 (5,963 days old) by tomturbomatic (Beltsville, MD)        
Short cycle efficient?

 It could be, but short cycles did not always mean low water use and unless the wash action and particle filtration were effective, often times not. Another problem with low water use was the fact that even very hot water was cooled to below optimum wash temperatures when it came in contact with the room temperature dish load and tank. The Ling-Temco did not have a detergent dispenser so it could not have a pre rinse to help warm everything before the wash. Old detergents were not able to do their best at lower water temperatures and even today's detergents designed for lower water temperatures need a longer wash period than many early dishwashers provided to do their best cleaning. My KD2P KitchenAid, their first top load portable, has a cycle that starts with a one minute flush that fills and drains to help warm the sump and the cast iron pump, then a 5 minute wash, IIRC, and two rinses of one minute each. With the purge, it uses about 8 gallons of water which is far more than the Ling-Temco, but it is a larger machine and will hold things that will not fit inside the L-T. The performance is greatly improved by starting the process with one or two of the after rinses, which increases water consumption, then raising the lid as little as possible to add the detergent before restarting so that everything is nice and hot for the wash, but it is not a cycle for dried or cooked on food soil. Either the machines were run after each meal or dishes were very well rinsed if they had to wait to be washed. The double wall porcelain tank of the KD2P provides thermal and sound insulation, but even 2.3 gallons (the amount of each fill)of very hot water will drop 30 to 40 degrees when it comes in contact with the tank and dishes at room temperature. Factor into this that many of the older dishwashers were installed against outside walls (usually there was a window over the sink) that could get very cold in the winter, and the thermal loss was even greater. Some older machines heated the water before it went into the dishwasher, but had no provision for heating the water once it was in contact with the dishes and that electrically heated 2 gallon tank which kept water at 180F 24/7 was not insulated so that was not efficient. Some (Hotpoint was the first) had a heating element in the sump. While it was energized throughout the cycle in many cases, the short washes did not have thermal holds on the timer to make sure the water stayed hot during the wash. I think Hotpoint was the first to have a detergent dispenser which allowed for two washes and gave the detergent for the first wash some protection. This allowed the initial 45 second flush to be very effective because the dishwasher filled from the top center of the tank where the water caused a small finned disc to spin. The shower this created not only warmed the whole tank and load, but also flushed some soil down the drain before washing began. Most of the machines that used an impeller wash action filled with around 6 quarts of water for each phase of the cycle. Finally, except for some double wall D&M portables, thermal insulation was hardly used until the mid to late 70s, although by then most dishwashers except for the cheapest bol machines had detergent dispensers which allowed for a fill or two to heat the machine and contents before the detergent was dispensed in the main wash.

Post# 256416 , Reply# 8   12/26/2007 at 22:51 (5,958 days old) by toggleswitch (New York City, NY)        
Preway all the way!

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~My brother has in his collection a Preway dishwasher.

Perhaps a new thread with pics and videos is in oder, and no, I'm not related to Funguy! *LOL*

Post# 256437 , Reply# 9   12/27/2007 at 05:41 (5,958 days old) by tomturbomatic (Beltsville, MD)        

The Preway used a spark plug to ignite the gas and you did not want to have a rug in front of the dishwasher.

Post# 256494 , Reply# 10   12/27/2007 at 16:25 (5,958 days old) by stopmeister72 (Irving, TX)        
interesting information

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About 30 years ago, my church has a similar dishwasher, i know the name on glass door wasn't Ling-Tempco but it could have been Vought?? But I remember watching it, it was pretty cool watching the water spray all over the glass going up and down. Here is a link to their patent info. Gonna see if i can get my mom to find and scan the pic for me, i know there is one of the kitchen with the dishwasher in the backbround. I think it was kinda green, and it had the timer on the lower left.

CLICK HERE TO GO TO stopmeister72's LINK
Post# 257178 , Reply# 11   1/1/2008 at 23:59 (5,952 days old) by mrcleanjeans (milwaukee wi)        

so do the Preway or Ling-Tempco clean well ?

Post# 257179 , Reply# 12   1/2/2008 at 00:00 (5,952 days old) by mrcleanjeans (milwaukee wi)        

so do the Preway or Ling-Tempco clean well ?


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