Brown and Sharp machinist anvil with a serial number. Abouy 16 inches long about 12 inches wide and 2 inches thick with the base same size only about 6 inches shorter. Was told it was an anvil, but no real hammer marks. Not rusted. From a machinist estate sale. Any ideas?
- Thread starter 1936
- Start date
Could it be a(dunno the name),"surface plate" to work on...sometimes made of granite to a known spec that can be figured as a 0 tolerance spec surface to build/design objects on?(NO irregularities that night throw design off a few thousanths).
"If it can't be fixed with hammer,then you have an electrical problem
"
"If it can't be fixed with hammer,then you have an electrical problem
"Paul from MI
Well-known Member
That size would indicate that it is a small surface plate. Some toolmakers would keep a small one like that on their bench for their own individual use. I always thought that was too small to be very practical, but to each his own. There may be a Brown & Sharpe number on it somewhere which can probably be matched up on their website. DON'T USE IT FOR AN ANVIL!! IT SHOULD BE FLAT WITHIN .0002" IF IT IS GOOD.
Paul
Paul
thread got me looking at a piece I have from a machinist's estate....mine is 12 x 18 x 2 1/2. I found a tag on front of it and it is very hard to read but I think it says THE CHALLENGER CO GRAND HAVEN MICH MADE IN USA. Then stamped into the tag what i thought was a serial but it is the size 12x18x2 1/2. Then i assume the guy that owned it sometime stamped into the steel D.P.C. 3A283436 above the tag. Is this a machinist anvil? It sure is pretty heavy and has threaded holes like 3/4 SAE on each end. I think I have another at his place I have not picked up yet...maybe 2 or 3 more. He was a packrat.
Anonymous-0
Well-known Member
Yes, a cast iron surface plate. Some were ground, some lapped and some had a hand scraped finish. Neat item, but they are practically obsolete, since granite plates came out..
railhead,
From Gutenberg to the early 70s in printing we used something similar - It was called a stone –
We'd set Monotype or Linotype, put it in a CHASE (made by THE CHALLENGER CO) which is a square or rectangle steel about 1/2" thick, the type was put inside, wooden or aluminum furniture (a stick of wood about 5/8” thick by various widths and lengths to fill the chase) was put all around the block of type, then 2 sets of coins on each side (2 wedges = 1 coin set), of the type block
A Key was used to bind the 2 wedges (coin) so the type would not fly out when the printing press got up to speed.
The stone had to be absolutely flat, was used to do the chase set-up - and when it was all locked; with leather or wooden mallet and a block of wood you tapped all the high spots until all was type high.
Originally the stone was a flat 5” marble like stone, then to a thick steel plate 2”+ was used.
The THE CHALLENGER CO made the chase, coins and the California job case (where all the letters were stored). I don’t remember who made the stone.
From Gutenberg to the early 70s in printing we used something similar - It was called a stone –
We'd set Monotype or Linotype, put it in a CHASE (made by THE CHALLENGER CO) which is a square or rectangle steel about 1/2" thick, the type was put inside, wooden or aluminum furniture (a stick of wood about 5/8” thick by various widths and lengths to fill the chase) was put all around the block of type, then 2 sets of coins on each side (2 wedges = 1 coin set), of the type block
A Key was used to bind the 2 wedges (coin) so the type would not fly out when the printing press got up to speed.
The stone had to be absolutely flat, was used to do the chase set-up - and when it was all locked; with leather or wooden mallet and a block of wood you tapped all the high spots until all was type high.
Originally the stone was a flat 5” marble like stone, then to a thick steel plate 2”+ was used.
The THE CHALLENGER CO made the chase, coins and the California job case (where all the letters were stored). I don’t remember who made the stone.
1936: while a picture would be helpful, in general the lack of hammer marks may be explained by the fact that a machinist's anvil is often used only as a base to hammer other things on--for example, putting a shaft in a gear, changing inserts in a die, inserting dowel pins in assemblies, installing and removing roll pins, and other fairly light-duty stuff that works best on a flat, hard, solid surface.
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