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Almost all the mechanicals are good and the rubber all bad! The only significant obstacle to putting this machine to daily use for now though is the feed rollers: the smaller front ones all have large flat spots - maybe more than one flat spot - and show signs of recently having been freed from adhesion to the platen. I guess nobody remembered to rotate the platen every day during a forty year storage? You can type for maybe 10 lines before the rollers line up like lemons on a slot machine and the lines begin to bunch up.
The four front rollers ride on a shaft attached to spring loaded arms attached to brackets attached to the main frame members of the carriage, apparently with rivets. The platen is user changeable but the catch tray underneath the platen is attached to this front shaft by two flanges so it is captivated. The roller shaft is attached to the arms with in-line screws but since you can't get the catch tray off you could not get an ordinary screwdriver in to remove them, and even if I could I am afraid I would not be able to reassemble it and will not try. So I am thinking of fixing the rollers in situ, either by softening them with heat or chemicals and encouraging them to harden again more nearly round, or by sanding down the ridges on the sides of the flats and possibly building up the center of the flats if the paper still does not feed properly.
I can't see any other option so I will probably try this in the order heat/chemicals/sanding. I already got the platen into a usable state by filling and sanding a spall so I am not giving up yet! If you would like to see a photo of anything let me know.
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I have a similar problem with a '38 model I'm going to "get to one of these days." Whoever has a solution first let the other one know, okay?
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I could have swore that I had one of mine off at some point. I'll try to remember to ask at the repair shop the next time I go over there.
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Oh, they'll come off. I've got mine almost there myself. Just didn't have the time nor the ambition of finishing what I started. I do know you have to undo a lot of fasteners to get to the things.
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As a machinist I have worked on A LOT of precision rollers of all types over the years.
Any time I had to refurbish any kind of rubber covered roll I always turned or ground the old covering off and sent out for recovering and then turned/ground it back to the specified diameter.
I have done a lot of printing press rolls but never a platen roller for a typewriter, or the platen tension rolls for that matter.
I have seen typewriters with refurbished platens and rollers but, I have always thought about trying to find a less expensive way to refurbish the platen and rollers on old typewriters.
I happen to have a smaller precision cylindrical grinder that could easily do the job for all but the longest of platen rollers.
The obvious problem with just resurfacing an existing platen without build up of new surface material would be the loss of the needed diameter to catch and feed the paper through the machine.
So we need a new, cost effective way to build up the roller surface so it may be ground back down to the original diameter, or some way to compensate for the loss of diameter either through an adjustment or, a 'shim' to act as a packing of sorts between the type paper and the platen.
The idea of placing a packing sheet in with every typing sheet does not sound very appealing.
Has anybody else tried anything along this line ?