[Steam-engine] Hand holes

[Andy glines]

> 
> Our club owns a small verticle boiler.  The hand
> hole
> plates are held in by two-legged frogs.  Some of the
> frogs are parallel to the centerline of the boiler
> and
> some are square to it.  Which way is considered
> correct?


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Andy Glines
Evansville, IN


		
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