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Paul39
5th Jun 2010, 11:12 AM
This was posted in a Practical Machinist Antique Machinery thread. The thought was it added weight to counteract the upward pull of the overhead belt drive. I suspect it would also calm down a wood lathe with a big out of round chunk mounted.

Paul

http://s3.photobucket.com/albums/y54/Asquith1/May%202010/a01.jpg

RETIRED
5th Jun 2010, 11:19 AM
Aha, harmonic balancers.:D

Allen Neighbors
5th Jun 2010, 01:45 PM
I'm impressed! :D

hughie
5th Jun 2010, 06:07 PM
I take it he doesnt move his lathe around too much :U

joe greiner
5th Jun 2010, 09:44 PM
Aha, harmonic balancers.:D
AKA "tuned mass dampers" in very tall buildings subject to earthquake and wind loads.

Cheers,
Joe