Forged lathe bits ?

[wrongwayrick]

These came in a small box of odds and ends with a new to me small lathe
The bits are not for the lathe I purchased and I suspect are much older
No makers marks on any of them that I can find
The shank is about 3 inches long 3/8 inch tall and 1/4 inch wide
The tips are turned up and nicely finished
Anything anybody can tell me about them would be appreciated

 

[enginebill]

Hand forged plain carbon steel lathe tools most likely from the late 19th century.

 

[Jim Christie]

You can see some similar tools and their uses shown here ,

International Library of Technology; a series of textbooks for persons engaged in the engineering professions and trades, or for those who desire information concerning them : International Textbook Company : Free Download, Borrow, and Streaming : In

Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.

archive.org

and if you scroll back and forward a few pages.
I have seen a chart showing the several types in another book.
I'll see if I can find it later.
Jim
P.S.
I found the pages I was looking for in another book .

Machine molding; foundry appliances, malleable casting, brass founding, blacksmith-shop equipment, iron forging, tool dressing, hardening & tempering, treatment of low-carbon steel, hammer work, machine forging, special forging operations : Internati

26

archive.org

Machine molding; foundry appliances, malleable casting, brass founding, blacksmith-shop equipment, iron forging, tool dressing, hardening & tempering, treatment of low-carbon steel, hammer work, machine forging, special forging operations : Internati

26

archive.org

you can flip back and forward a few pages from these links too for more details.
Jim

 

[johnoder]

Worked fine for making such as this 85 ton assembly over 120 years ago at the Brooks plant in New Jersey
Its what they had (or made quickly as needed). They likely weren't aware that such things would evolve into something better. Check out the Grand Pa next to rear driving wheel - which are 80" in diameter

L.S. & M. S. is Lake Shore and Michigan Southern

 

[M.B. Naegle]

I've wanted to make some like that to play with. Lotta work to make them, but afterwards sharpening is easy. I've read that they cut very well due to the face geometry and the downward pressure creating a spring gooseneck of sorts, so less chatter.

I've also thought about making something like an indexable holder that would follow the same geometric shape. Steel holder that holds a vertical HSS bit clocked 45 to the holder. Sharpening would be as simple as grinding the top face and feeding more bit out to the prior height.

 

[Jim Christie]

I think there were some tool holders made like that at one time and you could just clamp in a regular H.S.S. tool bit with the end sticking up and you just sharpened the top and raised the tip back to center height.
There were some others that were similar but had special shaped bits to fit their brand of holder
I can't remember the brand names off hand but there have been threads about them on this forum in years past.
I posted some forged boring tools in this thread a long time ago .

Old Machinist Chest and Machinist Tools

I have been inspired by some recent threads on this forum to try and push a long with a project that has been in the back of my mind for a while so I thought I would share the experience here on this forum with those of you who like these sorts of things. I am working on cleaning up an old tool...

www.practicalmachinist.com

the thumb nails are still there but I didn't want to pay the ransom to have them work.
I have attached them again below.
Jim

 

[M.B. Naegle]

I think there were some tool holders made like that at one time and you could just clamp in a regular H.S.S. tool bit with the end sticking up and you just sharpened the top and raised the tip back to center height.
There were some others that were similar but had special shaped bits to fit their brand of holder
I can't remember the brand names off hand but there have been threads about them on this forum in years past.
I posted some forged boring tools in this thread a long time ago .

Old Machinist Chest and Machinist Tools

I have been inspired by some recent threads on this forum to try and push a long with a project that has been in the back of my mind for a while so I thought I would share the experience here on this forum with those of you who like these sorts of things. I am working on cleaning up an old tool...

www.practicalmachinist.com

the thumb nails are still there but I didn't want to pay the ransom to have them work.
I have attached them again below.
Jim

OK tool holder co. was one, although they used some very proprietary forged bits. The indexable HSS concept is there though.

 

[kenton]

I've wanted to make some like that to play with. Lotta work to make them, but afterwards sharpening is easy. I've read that they cut very well due to the face geometry and the downward pressure creating a spring gooseneck of sorts, so less chatter.

I've also thought about making something like an indexable holder that would follow the same geometric shape. Steel holder that holds a vertical HSS bit clocked 45 to the holder. Sharpening would be as simple as grinding the top face and feeding more bit out to the prior height.

The Diamond Tool Holder

 

[Limy Sami]

Back in the day when Sami was very young (and equally skint), he was given a 2 oz tobacco tin of short ends of 1/4, 5/16 & 3/8 ground HSS that were too short to go in to tool holders. (plunder of untold value !)
Having read that HSS maintains it's hardness even when red hot I tried silver soldering one on to a ''shelf'' or rebate cut in the end of a piece of 1/2 sq cold rolled, and it worked

From then on I mounted them at all sorts of odd angles - to either get at a feature or use existing angles to save on grinding, etc etc, .............. and still do so today.

 

[DDoug]

IIRC reading a 1950's Lincoln Electric welding book, they made HSS in a welding rod for hardfacing.

 

[Jim Christie]

I didn't check for more recent information but H.S.S. rod was available from Welco in the mid 1970s early 1980s as well .from a booklet I have.