Another ID please

[Peter D'Attomo]

Got this at estate sale. Design is similar to Don Derry, but who made it or what insert it uses, I'd appreciate any info. The square stock is interesting as well as the slot for the cutter and has a set screw to tighten.
Thank you

 

[hockenbery]

You are right on about being the same design as the Derry tool.

Based on the weld - I think it is a homemade tool.

The out riggers a few quite large gained some popularity in the mid 90s.
There were some commecial offerings.

The Jamieson and other trapped systems dimmed that popularity a whole lot by the turn of century.

 

[Peter D'Attomo]

Thank you . Any idea of what cutter would be used?
Regards

 

[hockenbery]

Thank you . Any idea of what cutter would be used?
Regards

Looks like something is held in the slot with a screw.
Maybe a teardrop scraper or some bit holder that can articulate
There were lots of hollowing tools. I have some Stewart tools that scrapers and tool holders bolted onto.


The Stewart system had disc with a slot that fit a 3/16 cutter like the tool on the left.
The disc could rotate some to position the cutter and the cutter could slide in and out. Tightening the screw locked everything in place.
Worked well except you’d get in a certain spot inside where the disc would rub and not let you cut. So you stop and fiddle to put the bit where it will cut then you cut a little and have to adjust again. The scrapers similar to the ones in the picture Trent Bosch sell locked in the same way but there was nothing in the way to hit anything. Lots of turners just went to the scraper bit on the bent toool and many of them went with a round disc that could be rotated a 1/4 turn when it got dull.

 

[hughie]

Not who would have made it. In the past I have made a couple for myself

 

[Michael Nathal]

I wonder if it is a D-way rig