South Bend 11 inch Lathe

D

D E Major

Plastic

Joined

Aug 23, 2008

Location

Garnet Valley, PA

• Aug 25, 2008

• #1

I recently acquired a South Bend Lathe, it is a 11 inch 5 foot bed, the serial number is 48966. When I called the phone number for South Bend they were very helpful. I was told the lathe was shipped in April of 1934, to the Gulf Oil Corp. in Philadelphia, Pa. But they were unable to help me with any printed information or manuels for this lathe. It is a Catalog #333-B. I would greatly appriciate any information, on this lathe. I also have a Rivett lathe model #608, with a serial # 132, which I was able to find information for.
Thank you,
D E Major

 

S

swells

Stainless

Joined

Dec 29, 2004

Location

Indiana

• Aug 25, 2008

• #2

D.E.
If this is an "O" series lathe, it would be a Silent V belt over head drive on floor
legs. take a look at this page and see if it is indeed your lathe.
another rare machine...

http://www.wswells.com/data/catalog/1934_cat_94/album/slides/scan (22).html

Steve Wells

 

mcload

Hot Rolled

Joined

Nov 5, 2007

Location

Houston, Texas

• Nov 19, 2020

• #3

Interesting old and rare SB lathe for sure. I can't imagine that much mass
teetering on the four cast-iron legs. But it is awesome. How about some pics of yours?
Thanks for the brochure scan Steve.

PMc

 

Last edited: Nov 19, 2020

MetalCarnage

Stainless

Joined

Apr 24, 2011

Location

Nebraska

• Nov 19, 2020

• #4

As far as "manuals" for the lathe there is South Bends "How to Run a Lathe" http://www.arcaneiron.com/machines/HowtoRunaLathe.pdf and it's about the best you find.

Hope that helps,

-Ron

 

M

Mvnvltn

Plastic

Joined

Jan 18, 2019

• Jan 21, 2022

• #5

Unfortunately it seems I have one of these rare 333-B lathes. I’m trying to find info on the speeds and feeds for the change gears. The “How to run a lathe” book posted doesn’t list the 11”.

 

johnoder

Diamond

Joined

Jul 16, 2004

Location

Houston, TX USA

• Jan 21, 2022

• #6

Mvnvltn said:

Unfortunately it seems I have one of these rare 333-B lathes. I’m trying to find info on the speeds and feeds for the change gears. The “How to run a lathe” book posted doesn’t list the 11”.

Click to expand...

Catalog 94 may be helpful - 11" starts on page 18

http://www.wswells.com/data/catalog/1934_cat_94/1934_cat_94.pdf

have fun

Here is a "How To Run A Lathe" edition more related to the older stuff - like your Series "O"

http://vintagemachinery.org/pubs/1617/5795.pdf

ph

 

Last edited: Jan 22, 2022

M

Mvnvltn

Plastic

Joined

Jan 18, 2019

• Jan 21, 2022

• #7

johnoder said:

Catalog 94 may be helpful - 11" starts on page 18

http://www.wswells.com/data/catalog/1934_cat_94/1934_cat_94.pdf

have fun

Click to expand...

I have the top motor style like the pic shows, but it doesn’t list the speeds of feeds. I’m not even sure how to even calculate that. I’ll try to load some pics of it.

 

johnoder

Diamond

Joined

Jul 16, 2004

Location

Houston, TX USA

• Jan 21, 2022

• #8

but it doesn’t list the speeds of feeds

Click to expand...

Take a look at page 41. Yes we know you have no QC box - but the info on it for say 20 TPI and .0166 longitudinal feed will also apply to your change gear lathe that is set up to cut 20 tpi - because you have the same apron gearing as the QC equipped lathe. If you wanted to - say - cut a .003 long feed, you would need to set the lathe up to cut 112 tpi

Only trouble with the .003 business is that your change gear lathe was shipped only with change gears for cutting threads down to 40 tpi - see the chart on page 21 down in the corner.

Page 61 lists an attachment for $18 that would make possible thread cutting down to 80 tpi - with a corresponding reduction in feed rates

 

Last edited: Jan 22, 2022

johnoder

Diamond

Joined

Jul 16, 2004

Location

Houston, TX USA

• Jan 24, 2022

• #9

but it doesn’t list the speeds of feeds

Click to expand...

You can make your own "chart" as to what happens FEED wise as related to the list of threads on page 21 in Catalog 94

I'll start it - you can add to it as you like.

40 tpi. .025" is reciprocal. feed rate long is .0083 per turn. Feed rate cross is .0031 per turn

Note that long feeds are one third of reciprocal.

Note that cross feeds are .375 times long feeds.

 

johnoder

Diamond

Joined

Jul 16, 2004

Location

Houston, TX USA

• Jan 26, 2022

• #10

but it doesn’t list the speeds of feeds.

Click to expand...

HTRAL 27 linked in an above post is crammed with info - but does not mention end gearing until page 91

So here are those two pages so essential to change gear SBs of 90 years ago