Originally Posted by gypsyquilter
so, can any vintage singer be converted to a hand crank?
I have a really old (1892) that can't be converted because it doesn't have a motor boss. I don't really
know what a motor boss is but it's the place, under the handwheel, where you would be able to attach the handcrank.
If the machine 'does' have a motor boss then all you need is a spoked wheel and the hand crank and you are all set to go!