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Wind Powered Saw


Billhook
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2 hours ago, difflock said:

Apparently

Leaving the wood in the water for a year, leaches out the sugars, therefore the wood will not split after cutting?

Is this a correct explanation?

I can understand it keeps it wet, therefore softer and  easier to cut, yes?

Plus less grit/no grit.

mth

I was wondering the same thing.  

Any expert opinions out there?

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10 hours ago, difflock said:

Apparently

Leaving the wood in the water for a year, leaches out the sugars, therefore the wood will not split after cutting?

Is this a correct explanation?

I can understand it keeps it wet, therefore softer and  easier to cut, yes?

Plus less grit/no grit.

mth

Yes I think so, extract from FC bullettin 117:

 

"Boards sawn from pine logs wet stored for 6 months quickly suffered surface
defacement from moulds and sapstainers. However, very little defacement
occurred in boards cut from logs stored for two to three years, probably because
of the nutrient leaching associated with long-term water storage and the
inhibitory action of bacteria which are abundant in wet stored wood. The
porosity and strength of the timber of a range of species also altered during
water storage; for both hardwoods and softwoods porosity increased signifi­
cantly, and the strength of softwood timbers reduced slightly although this did
not reduce the yields of construction grade timber."

 

There was a wind powered sawmill behind the house where I was born in this village, oddly the sails were fixed so only worked when the wind was SW, it had ceased working by the time I was born but my grandmother remembered it, the house on the spot is called Mill End.

 

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I thought that it was strange not to have an automatic speed control on the sails.  The guy seemed to have to stop the drive and run up a ladder to adjust something.

On the windmills around here they have a pair of arms with large cast iron balls on the end which fly open with centrifugal force as the wind speed increases.  These are linked to the shutters in the sails which open and slow the sails down.

 

Very odd not to have a fan tail to turn the sails into the wind.  In the days before fantails the miller had to turn the post mills by hand, so he had to be there most of the time.

Perhaps the prevailing wind was SW and the site was such that there was not enough windpower from other directions so it was pointless to turn it.?

 

Interesting piece about the wet wood 

Edited by Billhook
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