| 摘要 |
<p>Arc welding machine, esp. for inert gas welding, where batteries are used to supply low voltage d.c. via an electric contact to a consumable electrode wire. The batteries are located on a sliding table mounted in a trolley. Two 12 volt batteries are pref. connected in series to provide the welding current, esp. using a frame contg. sockets which can be pressed onto the battery terminals to make a rapid connection. The trolley pref. contains a spool of electrode wire and a wire feeder; and the batteries can be located side by side, or one above the other, in the trolley. The pref. batteries are lead accumulators fitted with a connection for recharging and also driving an adjustable d.c. motor actuating the wire feeder. The protable welding trolley requires no mains electricity connection during welding, and no welding transformer.</p> |
