| 摘要 |
Apparatus for dispensing wire from a spool, such as welding wire, wherein the spool axis is vertically oriented and the spool includes end flanges confining the wire coil. A rotatable wire dispensing arm is mounted upon a base inserted in a hole within the upper spool flange and a friction brake interposed between the base and arm controls the rate of arm rotation. An extension in the form of a cam is formed upon the base to selectively increase the friction between the base and flange hole to prevent base rotation, and the dispensing arm includes a tube internally reinforced by a coiled wear sleeve while the entrance end of the wear sleeve is provided with a hard, wear resistant ceramic ring to reduce wear.
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