Nice restoration, but it should be covered in a layer of 99.99% food grade tin. The paint layer on the outside does not protect the inside parts and since it's from cast iron it will rust.
If one has a lathe, it would pay to add a needle thrust bearing and mating thrust washers. INA makes one for $4, available at ZORO. The nylon bushing is good, but a real bearing makes it much easier to operate. You will use the lathe to remove about .125" from the screw and face off the end to receive the thrust bearing.
I'm pretty sure that you are missing two parts. The first one would be a rubber cap over that circle shaped element on 17:21. The second one would be a rubber "plate" that you would put between the "feet" and the table, 19:05.
Que maldade filmar a soldagem sem colocar uma proteção para os olhos de quem assiste... Todos os que fazem isso, recebem voto negativo meu. Parri aos 9:00, nem quis mais assistir ao vídeo...
Porkert grinders seem to be made still but in Poland. Here is a #22 that I motorized. These are top quality units and as good as the USA Enterprise or Chop-Rite. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-asCPLzvwK4Y.html&lc=UgxxjGgH2oMNKuj2vx14AaABAg