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That cabinet-tub is super cool. I thought just certain year Hotpoints had it (like Greg's '63 and this one), but it turns out all of them did (checked my 1975 Hotpoint repair manual)!!!

When I ran Greg's at the Convention, Eddy mentioned that the cabinet was the outer tub and I should put my hand on the front of the cabinet as it threw the water out. I did...VERY COOL. You can actually feel the water being thrown out!!! And like I've said before, the loud crashing "WHOOOOOSH" sound adds to the excitement!

After a hot water wash, the front of the cabinet warms up considerably as well. At Greg's I even saw moisture on the front after the wash water had been spun out!

--Austin
 
very nice

Robert,
Thank you very much. I am only just now up to the clutch shoes - massive - in my understanding. I try to figure out how these wonderful things work mechanically and shots like this help.
I wonder what a direct drive motor for all of that would be dimensioned like...that is, a direct drive motor that still worked great after 50 years...
A very belated "Alles Gute zum Geburtstag" by the way! And many many happy returns of the day.
 
Not to jinx it, but tonight I might get to do the very first load in the Hotpoint. I just have to clear up the tub centering issues by switching the springs from the old machine into the new one (easier said than done), because the old one did not have centering issues and I suspect the springs are weak in this machine.

I turned the dial through the cycle last night to see its cycle functions. Anyone care to guess how long the overflow rinse cycle is in this machine?
S4.gif
 
Hi Robert,

Does this machine do the "double overflow" like Greg's machine? Very strange watching the overflow, then all of a sudden the water shut off but the machine still kept agitating! It repeated the process a second time, before the motor stopped to pause for spin. Although of course yours won't need to pause! :)
 
Does this machine do the "double overflow" like Greg's machine?

Nope it keeps the water going through the entire rinse agitation period. What, no guess on this time period Austin?
 
OMG, I now see where all that water usage comes from. There are no spray rinses, but the rinse fill is 6 minutes long (it only takes 3.5 to fill the tub) and the overflow rinse agitation is another 4.5 minutes long. Making a grand total of 10.5 minutes of waterflow just for the rinse cycle. Yeah baby!
 
Long Overflow!

Wow Robert,
Thats realy a long overflow. We had 2 Hotpoints and that 1st model with the lid that was removable didn't have a spray rinse either. But the second had a spray and a overflow that I think was only 2 1/2 to 3 minutes. I think from my personal observations with solid tubs the Kelvinator had the most intensive overflow rinseing of all solid tubs. Am I right or wrong?
Peter
 
No Pete this Hotpoint has the both my Kelvinator & ABC-O-Matic long beat for long overflow rinses, the Kelvinator overflows three minutes, as opposed to Hotpoints 7 or more minutes of overflow.
 
overflow

So,Uni,are you saying that this machine actually overflows for 2.5 minutes after the tub is full before agitation begins?Incredible!Perhaps others feel as I do that it would have been so wonderful to live in the time when one did not have to worry about each drop of water(or fuel)used,before absolute political correctness,when one could enjoy a steak-or a cigarette-or a drink-without worrying so about the harm caused to the body...........sorry to ramble,dont know what set me off,usually a very quiet member.
Tom
 
So,Uni,are you saying that this machine actually overflows for 2.5 minutes after the tub is full before agitation begins?

Yes that is exactly what I mean. And to add to that, the first 1.5 minutes of rinse fill is forced to warm water no matter whether you have the warm or cold rinse button pushed!
 
Tonight I took out the timer in the Hotpoint and made an adjustment. It works fine except for the very first increment of the final spin, it continued to keep the overflow rinse water filling, and after that long overflow rinse the last thing we want is increment of spin spray.

So I took out the timer and marked the wires so I would remember how to put it back together. Then I marked the side of the timer so I could tell where the dial lines up with the red pointer on the chrome control panel. With the timer dial re-installed on the timer I can see where the timer dial is located in the cycle so its easy for me to find the first increment of the final spin.

4-27-2006-22-42-59--Unimatic1140.jpg
 
Next I determined which contact was the rinse water contact by following the wires to the rinse side of the water temperature switch. Once I knew which wire contact connector was attached to the rinse water wire, I removed the side panel closest to the contact that needed adjustment. Bending these 4 tabs allows you to remove the side panel.

4-27-2006-22-44-26--Unimatic1140.jpg
 
Here’s the inside of the timer. The timer cams are round wood circles with notches cut out in them. As the timer “increment clicks” it turns both the dial and those cams clockwise. The cam follower ramps, that is the part that is bent downward and touch the cams, ride along the top of the cam. When a notch comes along in the cam the cam follower drops down into the notch allowing the top electrical contact to drop down and touch the bottom electrical contact and complete the circuit, in the case start the rinse fill.

The problem was that over the years the cam follower ramp had been bent slightly upward and was not coming back up complety during the first increment of the final spin. So I took a tiny screwdriver and GENTLY pressed the metal ramp of the cam follower down slightly. Problem solved.

4-27-2006-22-45-39--Unimatic1140.jpg
 
wooden?

I tread here gently - except for my name, I've never seen Robert get anything wrong - but wood? I had (sadly, "had") an Underwood electric typewriter with a fibre gear set from that era. The gears looked just like these cams.
Could they be out of the same material? It is made by impregnating fibre disks with a resin (in those days a phenolic) and bonding them under great heat and pressure. Produced quiet running, dimensionally stable and relatively production tolerance compatible gear sets, cams, etc.
If they are wood...what would suit the purpose? You couldn't use oak with iron for obvious reasons...the "soft" woods are out for obvious reasons, too. Hmm...Rosewood?
 
Robert, how long is each increment, 1.5? Also, how do you set the wash time ring on the dial in relation to the main timer?
 
Kevin you probably are correct, those cams are made out of some kind of fiber/resin mix, but they look and feel like thin wood.

And Les, yes the increments are 1.5 minutes a piece. The longest I have ever seen in a vintage increment click style timer.
 
re: wood timer discs

I would (no pun intended) expect to see phenolic in a timer of this era.

Whatever the material, it needs to be something that could have been stamped out on a punch press in order to be mass produced. It would also have to be treated or otherwise heat/moisture resistant in order to assure dimensional stability and adequate dielectric strength.
 
machinable

I know the composite cams used in other machines of this period were preformed into roughly the needed shape and then machined into the exact shape needed.
Suppose the same was done with these. There are some interesting articles out there on the whole topic - lots of the early work was for military aircraft.
After the war, a lot of the "new" materials were used in traditional applications because the factories and capital investments set up in the last years of the war needed to be used. The war came to a very sudden end leaving many companies with enormous capacities and investments. This led to the introduction of many good things - and also planned obsolescence which is only bad,
Robert, a simply great project. Am very much hoping for some videos.
KevEn
 
Aside from soap curd, I can't imagine why there'd be 1.5 minutes of overflowing before the rinse agitation begins. I kinda like the idea of splitting the rinse agitation into two periods with that 1.5 minute of stopped agitation filling.
 

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