Viking Deadeyes

[Brion Toss]

Hi all,
I have misplaced some old drawings of a lovely, clever method to tighten rope standing rigging on small craft. Essentially it's deadeye version of a chain binder; you reeve the rope through a roughly triangular deadeye-type fitting, get what slack out by hand that you can, lever the pointy end of the deadeye up, thus further tightening the rope, and then secure all in place by sliding a ring down.
If this sounds remotely familiar to anyone out there, I'd be grateful to hear about it. Been scouring my mind and my files to no avail.
Fair leads,
Brion Toss