YAMT - Yet Another Mystery Tool

[BlueBomber]

Today's YAMT: found these at an estate sale and Google doesn't seem to know anything about them. They are marked "Product of Ohio Metal Fibers Corp Toledo Ohio", "Resin-flow trademark" & "Pat Pend No R-1". They have pneumatic hose connectors and a trigger, with an adjusting screw on the back and a spring clip for some kind of hopper on top. There are air holes inside the vertical part above the trigger that blow air, presumably to move said metal fibers/resin out of the hopper.

Any one know what these are for and / or can provide a link to more info?

 

[The Cobbler]

fiberglass chopper guns?

 

[The Cobbler]

maybe a gelcoat gun http://www.uscomposites.com/equipment.html

 

[BlueBomber]

Thanks, Cobbler. I agree with your assessment, although this brand appears to be neither widely known or desirable. At least I got two air house connector for my trouble.