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Re: Shaft Passer
Posted by: Dirk Steffen ()
Date: January 06, 2007 01:01PM

It is actually a Russian WW1 invention as far as I'm aware. Think of it as two cog wheels built into the mine's mooring rope. The two wheels are connected by metal spokes that rotate with the wheels and alternatingly engage and disengage on locking mechanisms fitted on to the opposing wheel's axle, so that one spoke at least (in fact a pair - to the left and right of the wheel), always keeps the connection between the mooring ropes. Now, when the sweep wire rides up on the mooring rope, it encounters the two cog wheels. The cogs transport the wire over the wheels. As the spokes on the forward side disengage, the ones that come behind the wire engage and thus maintain the connection. That's it. I'll chase a drawing if you wish.

ATB

Dirk

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Subject Written By Posted
Shaft Passer Richard Fisher 01/05/2007 12:25PM
Re: Shaft Passer ROBERT M. 01/06/2007 01:32AM
Re: Shaft Passer Dirk Steffen 01/06/2007 01:01PM
Re: Shaft Passer Dr D.J.Fisher 06/27/2007 11:31PM
Re: Shaft Passer Doug McCord 09/23/2023 02:16PM


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