Saw with 2 Bars

[ShaneG]

Hello Folks,  You probably already realize I am not a regular here nor am I a logger in any way.  The closest I come to logging is cutting firewood for an elderly family I go to church with.  However, I do lurk here quite often out of interest for the trade.  I've got a curiosty question that I think this bunch can help me with.  I went to the Pioneer Days Antique Tractor show  in Eagleville, TN yesterday.  Along with hundreds of old tractors they have old gas engines and various other equipment.  This one fella had an old chainsaw that had two bars with chains that were about three inches apart.  I asked him the purpose of such.  He said he had heard several theories but no one he knew of knew for sure.  Would any of you guys know the purpose of such a creature?

[ShaneG]

By the way, I make my living as a trim carpenter so I  very much appreciate loggers and their efforts.

[beenthere]

Welcome to the forum, ShaneG

The dual bar chainsaw seems appropriate for making lumber 3" thick in a single pass. But not familiar with it.  Any pix's or more details, such as brackets that position the bars with respect to each other, or to position them along a log?  A name?

[Gilman]

Topping and falling really short trees in one pass?

[jack]

heck,  you all know them razors with twin blades,  close shavein and all?
well someone had the same idea,  cut yer leg twice as fast?

jack