Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-05-31
1986-05-13
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51135BT, B24B 2306, B24B 2102
Patent
active
045877700
ABSTRACT:
A belt sander attachment (2) is disclosed for a portable drill or the like (4), for sanding curved or flat surfaces. A frame (6) has a drive roller (8) and an idle roller (10) mounted thereto together with a movable carriage (22) carrying a second idle roller (24). The attachment includes belt changing locking means (78) for holding the carriage in a retracted position against the bias of belt tensioning biasing springs (32, 34). A positive belt tracking system (40) is provided for laterally adjusting the carriage relative to longitudinal belt movement around the rollers, to enable proper alignment and positive tracking under differing conditions. A belt tracking tray (70) is mounted to the carriage. A combined guard plate and pressure guide (54) enables guidance and application of sanding pressure by the user in a convenient orientation.
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