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Stanley made a tool that was called a no. 70 box scraper. It does not look like the Starrett tool, and has a curved blade and sole. I think I read many years ago that box scrapers were used to...

Starrett No. 194 Universal Scraper, price $1.00 in 1914 Catalog No.20. It is meant for scraping wood and is missing a turned wood "guard" that was for gripping one edge of the blade to apply more...

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Larry

You will not harm a 440 V motor by trying to run it on 220 V from a VFD. You would use a VFD on this motor by only hooking it to the highspeed windings. If a 440 V motor starts on 220 V, it will...

The electrical plate on the lathe shows it was sold with a 440 V motor. The motor is apparently the original motor, because Hardinge did use Diehl two-speed motors back then. The motor nameplate...

In 2018, I went to the Quincy Mine in Hancock, Michigan. They have quite an impressive hoist, which, on first sight, would not lend itself to on-site turning of the drum. Built in 1918, it was shut...

Brilliant! I would be proud to call William Philips my grandfather, though I am quite content with the ones I have.

Larry

The collar with the serrations (for a lever collet closer) pulls straight off the end of the spindle. The collar has a small key to prevent it from rotating on the spindle, which has a keyway. Some...

That is about as good a solution as I could suggest, with just a mill. Personally, I prefer brazed carbide tool bits in my fly cutters, and I use a diamond wheel grinder to keep the radius sharp.
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And get a VFD with a 120 V single phase input rated for a 1 HP motor. It will be much cheaper than a special motor and run off any household electrical outlet. Plus, you may find the variable speed...

The above link leads to a page with links to buy the book at Amazon and Abe Books, plus a suggestion to search your local public library.

Larry

Hardinge used three-phase two-speed motors rated 3/4 HP at 1725 RPM and 3/8 HP at 875 RPM in most of their lathes and mills from 1935 to 1955 or so.

Larry

This type of Hardinge lathe is called a TL, T-5 or T-10, but whatever the differences are, if any, they are not well defined. Tony has lots of pictures: Hardinge HLV-H Clones

The missing (in the...

I use a knife to make the end of the wood dowel triangular. It screws into the threaded hole easier than a solid round and still marks the pitch clearly.

By the way, be careful melting sulfur and...

You are correct. A 7-32 is between a 6-32 and an 8-32. Here are the ASME machine screw tables from the 1914 2nd edition of American Machinists' Handbook. Note that 7-36 was the standard and 7-32...

An old-school trick is to cast melted sulfur into a female thread or tapered hole. I have used bismuth alloy that melts at 156 degrees F in the same manner.

Larry

My huge list of threads only has two with 22 TPI and there is no close metric pitch: 16-22 ASME machine screw and 5/16-22 BSF. In the UK, I would suspect a madly ill-chosen variation on BSF, like...

I have worn only prescription safety glasses since 1954. After I retired and no longer got company-supplied glasses, my eye doctor would get safety glasses for me from a local wholesale lens shop. ...

I bought a used Maximat V10P on the factory stand in 1984 for about $500. It had been in a large electronics company's prototype/maintenance shop. I quickly decided to sell it. The lathe was in...

Pexto and Dixon made them from cast iron, obviously the easiest way. I think 3/4" is too thin to get proper stability. The castings are much thicker around the holes. There are several Pexto...

Define "mini lathe." There were lots of small lathes made in various European countries. Some were very cheap and some very expensive, some rare and some common..

Here is an alphabetized list...

Gold International Machinery in Pawtucket, RI has the USA market pretty much cornered on ornamental lathes and straight line engines. They may well be the high bidder at that auction, unless they...

I am not a metallurgist, but I know that O1 tool steel cracks if water quenched. Comparing the typical compositions of W1 and O1 tool steels, I suspect the higher Mn, Cr and/or W are what makes the...

I have several of these units, not all the same make. None of them allow the chuck to slip on the drive shaft. The chucks have a tapered mounting hole and the male taper is supposed to be pressed...

Here is my Starrett No. 89 Universal Dividers. As you see, it has a coupling so that an extension beam can be added. The beam is just a round rod with a flat on one side, but I never needed to make...