Abrading – Machine – Endless band tool
Patent
1996-10-28
1998-11-03
Eley, Timothy V.
Abrading
Machine
Endless band tool
451304, 451311, 451513, 474122, 474133, B24B 2120
Patent
active
058300465
ABSTRACT:
An apparatus for continually shifting an endless abrasive belt trained between a drive pulley and an idler wheel. The belt is trained around an idler wheel which is supported by an arm above a continually pivoting platform transverse to the travel direction of travel of the endless belt. The platform is pivotally supported by a fulcrum mechanism at a pivot axis bisecting the platform, and a resilient member urges one side of the platform down while an inflatable and deflatable bladder continually urges the other side of the platform up and down. A tensioning means biases the arm supporting the idler wheel away from the drive pulley to maintain tension on the endless belt between the idler wheel and the drive wheel while the idler wheel is reciprocating. The bladder is continually inflated and deflated per a preselected time period to selectively vary the shifting cycle. Due to the exposure of the full surface area of the abrading belt to a work piece placed against the drive wheel, the useful life of the abrading belt is increased as well as increasing the effective friction upon the work piece.
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Dugger Ben Allen
Hallit Antoine Ibrahim
Eley Timothy V.
Vulcan Engineering Co.
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