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How did weston brake mode concept work in hoisting mechanism?
http://lmgtfy.com/?q=how+did+weston+brake+mode+concept+work+in+hoisting+mechanism
Here's a good description:
http://www.harringtonhoists.com/tech_support/edocs/EDOC%200467%20rev00.pdf
(took about 2 minutes to find).
If you are still looking for more info., then globalspec.com is the place to go.
http://www.globalspec.com/industrial-directory/troubleshooting_chain_hoist
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