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DE4222007A1
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Device for cleaning large containers, in particular high-pressure reactors
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EP0423629A2
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Method of controlling an arc welding head
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US4303822A
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Apparatus for welding steel sheets
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US4151389A
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Method of and apparatus for welding sheet steel panels
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CA1060957A
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Method of ensuring the maintenance of constant quality of spot welding
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DE2645788A1
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Welding burner using pendulum oscillation - where current is monitored at both ends of the stroke to keep burner on centreline of seam
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NL7610983A
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Mechanized welding device.
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DE2611377A1
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Double wire gas-shielded welding torch - has control for current supply to the weld wire electrodes to maintain the central path of the torch
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DE2546221A1
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Automatic welding using two electrode wires - which are fed through one burner and connected to two separate electric circuits
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DE457657C
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Protection against taxlessness of vehicles in case of front spring break
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