On 5/20/2013 4:10 AM, Clifton wrote: > Hi Jerry and All, > > It's an interesting concept. I wonder if it could be adapted to modeling by > using a smaller chain gauge? I forgot to list the US Patent number http://www.freepatentsonline.com/2214686.html There should be a UK patent also. It appears to be rather generic and so about any size chain could be used. I have had some need it the past to space rivet holes at 1/2" on curved surfaces and this jig would have been rather easy to use. JerryK MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.