Ancient Technology

[Dieselman 63]

From 1935. Modern welding machines don’t have the same class as four iron wheels on a wooden trolley!

 

[Memmeddu]

From 1935. Modern welding machines don’t have the same class as four iron wheels on a wooden trolley!

Here in Italy motor driven welder were very popular .
Seek for "PELLIZZARI" rotary welder

 

[selectedgrub]

four iron wheels on a wooden trolley!

Now someone's coffee table.

 

[Rrobson]

Powered by a 35hp motor
Must have needed a big supply in the day! Gather they’re American with a speed of 1800rpm?

the spot welder has quite impressive specs too, two half inch plates capacity and 3.5t. Don’t make them like that anymore!!!

 

[Dieselman 63]

Powered by a 35hp motor
Must have needed a big supply in the day! Gather they’re American with a speed of 1800rpm?

the spot welder has quite impressive specs too, two half inch plates capacity and 3.5t. Don’t make them like that anymore!!!

Yes, it’s from Emerson’s Red Book, their stock is vast and impressive. The book is from 1935 so interwar, lots of equipment with both electric and flat belt drives. The whole book is full of amazing machines

 

[Brad93]

Nice to weld off those dynamo welders

same as the Lincoln bullet welders

 

[Memmeddu]

Nice to weld off those dynamo welders

same as the Lincoln bullet welders

Everyone say that
They say those welder were far superior to the modern inverter .
I have my doubts about because from an electrician eye they are just a waste of energy, but I think that performance wise they can be right.
I think the same about engine driven Vs inverter welder.
I personally own a GenSet MPM5/175CX which I think in my humble opinion it's way better than an inverter.
I still have to use a Fronius inverter welder ,but compared to other good brand ones I can say that it's different .
I like engine driven welders , they just need to be correctly operated ,2 strokes to establish the arc.
The first to make the engine revs up and the second to start welding.

 

[Brad93]

Well think about it this way you’ve got a huge 35hp 3~ motor running a big copper dynamo, outputting a very smooth DC arc. No power fluctuations, no electrical noise from circuitry, doesn’t matter how much you push the rod into the metal the power is there to keep the arc burning.
I can’t remember if it was the BOC machines or the Lincoln bullet welders but I think they were similar to the engine drives in that you can obtain different arc characteristics based on what amperage range you set with a course and fine adjustment that overlaps so you could be on 2nd gear, 70% and get 100A or 3rd gear and 30% also getting 100A but with a completely different arc characteristic

 

[Memmeddu]

Well think about it this way you’ve got a huge 35hp 3~ motor running a big copper dynamo, outputting a very smooth DC arc. No power fluctuations, no electrical noise from circuitry, doesn’t matter how much you push the rod into the metal the power is there to keep the arc burning.
I can’t remember if it was the BOC machines or the Lincoln bullet welders but I think they were similar to the engine drives in that you can obtain different arc characteristics based on what amperage range you set with a course and fine adjustment that overlaps so you could be on 2nd gear, 70% and get 100A or 3rd gear and 30% also getting 100A but with a completely different arc characteristic

That's amazing ,I couldn't imagine that before.
I believe it will change the inductance of the overall circuit so the arc characteristics will result different