Special gage block?

[Cannonmn]

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This steel,block is 5 x 2 7/8 x 2 inches. It is certainly shop-made looking at the box. I’ve seen another that looked just like it but was marked Pratt & Whitney, so I’m guessing it is some kind of industry/standard gauge block. But what exactly is it used for?

 

[crickets]

Sometimes a block is just a block. All kinds of blocks are used in work setup, parallelism and squareness are then more important than specific dimensions, which is why one of the three doesn't come to a round number. Still it's possible it had some special application

 

[Bill D]

a block to set something 2+7/8 inches away from a flat surface. Probably before clamping it down to machine it.
Bill D

 

[PeteM]

Seems decently ground, but no where well enough to be something like a P&W gage block.

Does it have signs of actual use?

 

[trevj]

Sorta like Alice's Restaurant, you could get anything you want, from P&W, as long as you paid what they asked.

 

[boslab]

We had a cupboard in the guage room in work full of the most obscure sized blocks, round setting rods weird jig things, then we got 5s, they went in the scrap bin with not much loss to anyone, the spiders lost a home, some of the boxes were really nice dovetailed polished mahogany lined with looks expensive purple velvet, it’s surprising what stuff gets accumulated, as they were being chucked in the boys from the grinding section were fishing them back out and sticking them in another cupboard!, it was a virtual rehoming of junk, 12 months later the 5s moved to grinding, they went back in the bin, no doubt someone else fished them out ( I was one, one box had 2 blocks, looked like parallels to me, still have them, if it’s chunky I’d recommend sawing them into a quick set of parallels if the blocks ground and square)
It’s a funny world
Mark

 

[EmGo]

then we got 5s

I know shave shower shit and shine, what's the fifth one ?

 

[Cannonmn]

I know shave shower shit and shine, what's the fifth one ?

The 5S System [Lean Manufacturing Methodology]

 

[Larry Dickman]

i thought it was just for checking quarters

 

[trevj]

I know shave shower shit and shine, what's the fifth one ?

Shut the fuck up, while you have your toes on the line for inspection!

 

[James H Clark]

Somebody correct me if I'm wrong, but I seem to recall that 6" Kurt vises are 2.875 from mill table to the bottom of the vise (I think).

JH