[TheForge] Re: [TheForge]Henrob Pistol grip torches (was English wheel )

[Peter Fels and Phoebe Palmer]

At 07:59 PM 6/28/02, you wrote:
>What is special about the Henrob that sets it apart from other small 
>torches , like the Tinman's little Meco or the Victor J40?
>
>Adam
>So far as I can tell Adam, it is the unusually low operating pressure ( 
>something that was common when the oxy-acet torch was just being 
>developed)  and the technique of orienting the tip vertically to give the 
>puddle a more complete shield from atmospheric oxy. The low pressure 
>results in a low velosity flame that sucks in less air and gives a more 
>placid pool.
The cutting attachment claims special economy because it has a single 
preheat flame but the same thing is available in a regular sheet cutting 
tip and the Henrob seems to have trouble handling enough oxy pressure to 
cut thicker steel at a reasonable speed.
Perhaps I'm missing something here and I sure would like to know just what.
The splendid Dorthy S tells me that she just loves hers without reservation 
and even Rob Gunther recommended them  in a discussion.
Please note that most welders don't bother to crank their regulators down 
to the recommended pressures when using small tips and I suspect that 
that  explains  a good part of the difference.           Pete F

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