Belt tensioner for drill press
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United States of America Patent
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Jul 11, 2017
Grant Date -
Mar 10, 2016
app pub date -
Sep 3, 2015
filing date -
Sep 8, 2014
priority date (Note) -
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Abstract
A drill press has variable speed drive via belts on stepped pulleys that transfer rotational force from the motor to the drill press spindle. Three stepped pulleys connected by two belts are provided in the example. A belt tension roller is bears against one of the belts to provide tension for effective power transfer from the motor to the spindle. The belt tension roller is adjustable along an arcuate slot in an anchor plate and is fastenable in position by an adjustment knob on the belt tension roller. The middle pulley is mounted to vary its position so that tension adjustments on one belt by the belt tension roller result in tension adjustments on the second belt as well.
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