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Making some gears for Springfield "Ideal" Lathe
- Thread starter cathead
- Start date
- Joined
- Feb 7, 2013
- Messages
- 2,532
Hi Terry,
I made the gears and the housings too. The housings are made of aluminum alloy and
the gears as well. The project started with a bit of foundry work using some car pistons
in the melt. Sand castings were used to make the housings and the gear blanks were
made by pouring molten aluminum into some tin cans to make some billets. Next I
machined a very slight taper on a one inch piece of shafting to use as a mandrel to
mount the gear blanks and added centers on the ends of the shaft. The gear blanks
were machined to rough size and bored to about .995 inch inside hole diameter. The
gear blank was then press fitted to the shaft and ready for milling gear teeth. After
the gears were made, a short steel shaft was installed in the gear and the driving teeth
were milled using a rotary table on the milling machine. The remainder of the work was
to fit the gears in the housings with a little clearance and also fit the spacing of the
driving and driven shafts. These gears drive the lead screw for threading and also
drives the shaft that moves the carriage. The round part in the photo has 8 gears inside
and the three gearing attachments have 5 possible configurations( 1-1, 1-2, 2-1, 1-4, 4-1).
That allows one to have all 40 feeds and speeds shown on the brass placard.
I made the gears and the housings too. The housings are made of aluminum alloy and
the gears as well. The project started with a bit of foundry work using some car pistons
in the melt. Sand castings were used to make the housings and the gear blanks were
made by pouring molten aluminum into some tin cans to make some billets. Next I
machined a very slight taper on a one inch piece of shafting to use as a mandrel to
mount the gear blanks and added centers on the ends of the shaft. The gear blanks
were machined to rough size and bored to about .995 inch inside hole diameter. The
gear blank was then press fitted to the shaft and ready for milling gear teeth. After
the gears were made, a short steel shaft was installed in the gear and the driving teeth
were milled using a rotary table on the milling machine. The remainder of the work was
to fit the gears in the housings with a little clearance and also fit the spacing of the
driving and driven shafts. These gears drive the lead screw for threading and also
drives the shaft that moves the carriage. The round part in the photo has 8 gears inside
and the three gearing attachments have 5 possible configurations( 1-1, 1-2, 2-1, 1-4, 4-1).
That allows one to have all 40 feeds and speeds shown on the brass placard.
- Joined
- Nov 24, 2013
- Messages
- 1,791
Thats awesome work man
Hello! I also have a Springfield lathe. It is about 8 feet between centers and swings about 15 inch. The serial number is 201 and the last patent date that I could find was 1901. It has the "disc gear" like yours and also uses the three gear boxes like you made. I seem to remember havering to make one of them as well. It was the first lathe I bought when I was about 18 I still have it in a barn with a couple of other belt driven machines- a Cinncinnatti no. 1 1/2 horizontal mill ans an old shaper- about 10 inches. The shaper has an old Turner Unidrive gearbox to convert from overhead belt to electric motor. That is a neat old lathe that you have!
- Joined
- Feb 7, 2013
- Messages
- 2,532
Rich,
I think they are a great lathe and I'm trying to get it into nice condition. It would be
fun if you could take a photograph or two. Thanks for the post.
OTE=Rich;200288]Hello! I also have a Springfield lathe. It is about 8 feet between centers and swings about 15 inch. The serial number is 201 and the last patent date that I could find was 1901. It has the "disc gear" like yours and also uses the three gear boxes like you made. I seem to remember havering to make one of them as well. It was the first lathe I bought when I was about 18 I still have it in a barn with a couple of other belt driven machines- a Cinncinnatti no. 1 1/2 horizontal mill ans an old shaper- about 10 inches. The shaper has an old Turner Unidrive gearbox to convert from overhead belt to electric motor. That is a neat old lathe that you have![/QUOTE]
I think they are a great lathe and I'm trying to get it into nice condition. It would be
fun if you could take a photograph or two. Thanks for the post.
OTE=Rich;200288]Hello! I also have a Springfield lathe. It is about 8 feet between centers and swings about 15 inch. The serial number is 201 and the last patent date that I could find was 1901. It has the "disc gear" like yours and also uses the three gear boxes like you made. I seem to remember havering to make one of them as well. It was the first lathe I bought when I was about 18 I still have it in a barn with a couple of other belt driven machines- a Cinncinnatti no. 1 1/2 horizontal mill ans an old shaper- about 10 inches. The shaper has an old Turner Unidrive gearbox to convert from overhead belt to electric motor. That is a neat old lathe that you have![/QUOTE]