Anyone Know What This Is And/or Used For?

[Chippy]

I picked this up at an online auction a little while back, it was listed as a lapping plate. After getting it home and taking a good look at it, I'm not sure that it's a lapping plate at all. Spent some time searching google but came up empty. Maybe some kind of fixture plate, it looks to be very well made. Hoping someone can ID this thing, Thanks in advance.

 

[Bob Korves]

It looks like it WAS a lapping plate before someone cut a a bunch of diagonal slots in it. Tell me more about the teeth on the side of the slots.

 

[Billh50]

it almost looks like someone took a large lapping plate and made some sort of jig plate out of it.

 

[Chippy]

It looks like it WAS a lapping plate before someone cut a a bunch of diagonal slots in it. Tell me more about the teeth on the side of the slots.

Don't know what they are called, but will call them fixture pieces for now, they drop into the slots and are driven along with a worm gear type set up. The key that is shown in one of them is used to move them along the slot. I hope that makes sense.

 

[MozamPete]

It sort of reminds me of a very large broach. Is there any difference in thickness over the plate?

 

[David VanNorman]

I am wondering if that might have been something to do with the printing of boxes . I am most likely wrong. to me it doesn't look like a machine shop part.

 

[Chippy]

I am wondering if that might have been something to do with the printing of boxes . I am most likely wrong. to me it doesn't look like a machine shop part.

You may not be too far off, when I was searching google I came across something related to printing, I don remember what it was but it was nothing definitive.

 

[francist]

Doesn't look like a machine shop part to me either, the winding keys are too nicely shaped for that. Makes me think somebody in a lab coat is expected to be tightening those up by thumb only.

I was thinking printing too, there's a special term for the little things that jam into the slots and hold the type in place. Can't think of it either right now, but it's a similar idea. I was wondering maybe holding multiple pieces (lenses, wafers, ??, ...) for grinding? Judging by the amount of "dogs" for the slots, it was expected that more than one or two pieces needed to be held at one time.

The fact that the slots are on the bias is intriguing.

-frank

 

[JimDawson]

Optics bench perhaps?

 

[Reeltor]

I think the printing term is quoins, standard and "high speed"

I don't know what the plate is for; but it's pretty kool