Chuck Key for a No.14 S Jacobs Spiral Gear Chuck

[GreyhawkUSA30340]

I am looking for a chuck key for a No. 14 S JACOBS SPIRAL GEAR CHUCK PAT FEB. 15 '25 -- this was engraved on the rotating sleeve; the body of the chuck has the following engravings: No. 14 Super Chuck 0" - 1/2" PAT. SEPT. 16, 1902 JAN. 26, '09 JAN. 5, '15 THE JACOBS MFG. CO. HARTFORD, CONN. U.S.A.

And yes, the gear teeth on the rotating sleeve are cut in a spiral shape, not the radial shape that is common!

Any leads appreciated!



Thanks,
Tim

 

[GreyhawkUSA30340]

Searching around, it seems keys for these spiral geared chucks are rarer than hen's teeth. At least I found some pictures of what they are supposed to look like (helical gear), for all that helps....