Date   

Serial Number look up

Steve Wells
 

Jim,

 I’ve added a feature to the SBL Workshop Website: wswells.com

 

For the SBL groups to test. 

 

If you are looking for a fast way to determine the date range of a lathe serial

number, you can now use the pre 1947 sequential number look-up database.

Something I have been working on for some time. I’m still years behind,

if you are wondering why your number in not listed yet, But rest assured I’m still working

on the numbers.

The post 1947 database look-up is not ready yet. I’ll add it to the DB index when I get the 

bugs worked out in the SQL queries.

 

To use the pre 1947 look-up:

From home page, Click the lathe serial number database picture, lower left.

 http://wswells.com/sn/sn_index.html

 

From the serial number index page, click the SNDB link at left bottom corner of page.

http://www.wswells.com/public/sndb_index.php

 

From the serial number chronology database page, click View pre 1947 serial number

http://www.wswells.com/public/sndb_read.php

 

bookmark this last link to surf directly to page.

 

Enter a pre 1947 number, above 700 or below 186514 to return a range of ship dates or

Suspected build dates closest to the number entered.

 

Post your comments in this thread.

 

Enjoy,

Steve



Re: metric threads:

m. allan noah
 

We need more info:

1. Which 9" lathe? (the 9" workshop with double tumbler gearbox, or the earlier wide bed 9" with single tumbler)
2. Which metric threads? (the common screw thread sizes, the fine or coarse ones, or something odd)
3. How exact do you need the threads to be? (fasteners have lower tolerances than making a micrometer screw)
4. How much money do you want to spend?

allan

On Fri, Mar 9, 2018 at 10:41 PM, joaquinpendleton@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:
 

Hi Group:
  How do cut metric threads on my 9" SB lathe, it has a full gearbox. thanks, Joaquin





--
"well, I stand up next to a mountain- and I chop it down with the edge of my hand"


Re: metric threads:

carbure2003
 

MEtric threads can be cut using transposing gears that change the gear ratio before the gear box

SB used to sell a transposing gear set with the following gears:

127-100 compound gear
48
44
36
32
28
26

The set now sells on ebay at prohibitive cost.

There is an alternate compound gear that will do an approximation

47-37.
Some people have found other gear combinations that approximate metric pitch. I saw on youtube a guy that cut 1.5mm pitch using a 54T gear on the spindle stud and a 80T gear on the gear box stud.

Question is which metric pitch you need to cut.

Guy Cadrin

---------- Original Message ----------
From: "joaquinpendleton@verizon.net [SOUTHBENDLATHE]" <SOUTHBENDLATHE@yahoogroups.com>
To: <SOUTHBENDLATHE@yahoogroups.com>
Subject: [SOUTHBENDLATHE] metric threads:
Date: 10 Mar 2018 03:41:11 +0000



Hi Group:
How do cut metric threads on my 9" SB lathe, it has a full gearbox. thanks, Joaquin


____________________________________________________________
Buckingham Confirms Unfortunate News
risingstarnewspaper.com
http://thirdpartyoffers.netzero.net/TGL3241/5aa3bf56500823f562ebdst03vuc


metric threads:

Joaquin Pendleton
 

Hi Group:
  How do cut metric threads on my 9" SB lathe, it has a full gearbox. thanks, Joaquin



Re: Clausing 5914 Bent Spindle Question (w/ Video)

Ryan K
 

Just wanted to give everyone an update a thank a member here who contacted me.  He offered to sell me a new old stock spindle and spindle nut to get my machine back up and running.  

I removed the spindle earlier in the week and threw it on some v-blocks.  The spindle is definitely bent.  Out of the headstock the spindle was showing a consistent .0015", same as what was measured when it was in.  Behind the front bearing the reading was basically .0000" so the bend is right in front of the bearing.  The bearings and castings all look good.  

Thanks again to everyone for all the feedback!



Re: spindle

eddie.draper@btinternet.com
 

I might be inclined to worry to a minor extent about the alignment of bearings, regardless of whether they are plain or rolling, before I started correcting misalignment of the bore by removing metal.  Getting the spindle out & clocking it between centres would be my recomended starting point.

Eddie



From: "kernbigo@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Wednesday, 7 March 2018, 15:18
Subject: [SOUTHBENDLATHE] spindle

 
so regrind it in on the id and od with a die grinder right on the machine



spindle

kernbigo@...
 

so regrind it in on the id and od with a die grinder right on the machine


Re: Clausing 5914 Bent Spindle Question (w/ Video)

Guenther Paul
 

To be honest with you I would leave the spindle alone 0.0015 is not super bad. If you block the spindle and hit it at the high point you may make it worse. 
GP


On Tuesday, March 6, 2018 8:00 PM, "ken campbell deltainc@... [SOUTHBENDLATHE]" wrote:


 
i am kind of stuck on how you would bend a spindle in a cast iron head
.....   so i would test  ... myself or a machine shop .... if the spindle
is really bent ......  rotate bearing surfaces on v-blocks ....

please keep us sb guys updated as you go along ... this could happen to
us too ..

ken




Re: Clausing 5914 Bent Spindle Question (w/ Video)

ken campbell
 

i am kind of stuck on how you would bend a spindle in a cast iron head ....   so i would test  ... myself or a machine shop .... if the spindle is really bent ......  rotate bearing surfaces on v-blocks ....

please keep us sb guys updated as you go along ... this could happen to us too ..

ken


Re: collet adapter 14 1/2"

Jim_B
 

In the files, tech info folder, tooling dimensions, you will find the dimensions. 

-8
Jim B,

On Mar 3, 2018, at 7:08 PM, houdini houdini969@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 

send some dimensions and i'lll check the one i have tomorrow

On Thursday, March 1, 2018, 8:57:41 PM EST, cudaboy66@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:


 

Anyone have one laying around for a 14 1/2" with the small bore



Re: collet adapter 14 1/2"

houdini
 

send some dimensions and i'lll check the one i have tomorrow

On Thursday, March 1, 2018, 8:57:41 PM EST, cudaboy66@... [SOUTHBENDLATHE] wrote:


 

Anyone have one laying around for a 14 1/2" with the small bore



Re: Clausing 5914 Bent Spindle Question (w/ Video)

Gregg Eshelman
 

Lesson learned, lathes are not to be lifted by their spindles or things attached to the spindle.
I'd try finding a good spindle. A search of eBay for Clausing 5914 turns up quite a bunch of individual parts, messaging the sellers to ask if they have a spindle might turn one up. Or you could make an offer on this complete headstock. How close are you to Chouteau, Oklahoma?





On Saturday, March 3, 2018, 8:18:25 AM MST, grizzlybagworks@... [SOUTHBENDLATHE] wrote:

I picked up a Clausing 5914 two days ago from a local machinist/fabricator.  Everything about the machine looked great except I wasn't able to inspect the spindle (mistake #1) because the collar was seized up pretty good around the 3-jaw chuck.  It measured ~.006" runout so I figured the spindle was good and I looked into the bore and inspected the taper to confirm they were free from damage.  I figured I was in the clear.  Turns out, I was not.

When I got home I was able to break the collar free and remove the chuck.  I put an indicator to the spindle and to my horror found that it had .0015" runout.  

The spindle is bent.  I'm almost 100% sure it happened by the transportation method employed by the previous owner.  When my friend I returned with some plywood and dollies we found the original owner had already moved the lathe 20 feet or so.  He put a solid piece of steel through the chuck, wrapped a chain around that and hoisted the machine in the air by the spindle.   We expressed concern but he said he'd been doing it that way for 40 years and has never had a problem.  We didn't argue the point since he was so much more experienced and had moved dozens of machines (mistake 2)

Do you guys have any ideas to try and repair it?

Worst case scenario I suppose is that I purchase a new backplate and face/turn it, then mount a chuck to it.  Since the spindle is keyed it will always register to the same location.  Hate the idea of loosing the ability to use 5C collets with the machine (I have the drawbar/adapter) and not being able to use the original 1-piece 4-jaw chuck, but I just don't know how else to approach it. 

Any input welcome!  Thank you guys!!

https://www.youtube.com/watch?v=YaoUv4drTZ8


Re: Clausing 5914 Bent Spindle Question (w/ Video)

Guenther Paul
 

If you want to go true a lot of work take the spindle out and check it that's the sure way to tell if the spindle got bend. I would start with the front ( by the chuck )  bearing first. A lathe is not to be picked up at the chuck. The privies owner must have not cared since the lathe was sold. You may also call Clausing and talk to a expert. Hopefully you just have bearing damage    
GP


On Saturday, March 3, 2018 11:46 AM, "913fred@... [SOUTHBENDLATHE]" wrote:


 
Several thoughts...
First, join a forum called "The Practical Machinist"
http://www.practicalmachinist.com/vb/
Those individuals have lots of experience in all brands of tools and has a large number of professional machinists as members.  They should be able to supplement the advice you get here.
Second - there are 5C collet chucks that are mounted to a face plate.  If you go with your idea of machining a faceplate on the lathe, this might be a viable solution to give you 5C capability.
As an example:
https://www.ebay.com/itm/5C-Collet-Chuck-With-Semi-finished-Adp-1-1-2-x-8-Thread/271667543122?hash=item3f40a5bc52:g:ygEAAOSwZQRYamgk
Another solution would be a Buck (or Bison ) adjust-tru 3 jaw chuck to give you the accuracy of a collet in a faceplate mounted device
Finally, you could watch eBay for a Clausing headstock assy.  If you decide to go that route, before I bought the headstock, I would try to disassemble your headstock and take the spindle a machine shop to straighten the shaft.  Check prices first so you don't end up with too much in the Clausing.
Best of luck!
Fred
 
 
 
On 03/03/2018 12:58 AM, grizzlybagworks@... [SOUTHBENDLATHE] wrote:


I picked up a Clausing 5914 two days ago from a local machinist/fabricator.  Everything about the machine looked great except I wasn't able to inspect the spindle (mistake #1) because the collar was seized up pretty good around the 3-jaw chuck.  It measured ~.006" runout so I figured the spindle was good and I looked into the bore and inspected the taper to confirm they were free from damage.  I figured I was in the clear.  Turns out, I was not.
 
When I got home I was able to break the collar free and remove the chuck.  I put an indicator to the spindle and to my horror found that it had .0015" runout.  
 
The spindle is bent.  I'm almost 100% sure it happened by the transportation method employed by the previous owner.  When my friend I returned with some plywood and dollies we found the original owner had already moved the lathe 2 0 feet or so.  He put a solid piece of steel through the chuck, wrapped a chain around that and hoisted the machine in the air by the spindle.   We expressed concern but he said he'd been doing it that way for 40 years and has never had a problem.  We didn't argue the point since he was so much more experienced and had moved dozens of machines (mistake 2)

Do you guys have any ideas to try and repair it?
 
Worst case scenario I suppose is that I purchase a new backplate and face/turn it, then mount a chuck to it.  Since the spindle is keyed it will always register to the same location.  Hate the idea of loosing the ability to use 5C collets with the machine (I have the drawbar/adapter) and not being able to use the original 1-piece 4-jaw chuck, but I just don't know how else to approach it. 
 
Any input welcome!  Thank you guys!!

https://www.youtube.com/watch?v=YaoUv4drTZ8
 


 



Re: Clausing 5914 Bent Spindle Question (w/ Video)

fwhite913
 

Several thoughts...

First, join a forum called "The Practical Machinist"

http://www.practicalmachinist.com/vb/

Those individuals have lots of experience in all brands of tools and has a large number of professional machinists as members.  They should be able to supplement the advice you get here.

Second - there are 5C collet chucks that are mounted to a face plate.  If you go with your idea of machining a faceplate on the lathe, this might be a viable solution to give you 5C capability.

As an example:

https://www.ebay.com/itm/5C-Collet-Chuck-With-Semi-finished-Adp-1-1-2-x-8-Thread/271667543122?hash=item3f40a5bc52:g:ygEAAOSwZQRYamgk

Another solution would be a Buck (or Bison ) adjust-tru 3 jaw chuck to give you the accuracy of a collet in a faceplate mounted device

Finally, you could watch eBay for a Clausing headstock assy.  If you decide to go that route, before I bought the headstock, I would try to disassemble your headstock and take the spindle a machine shop to straighten the shaft.  Check prices first so you don't end up with too much in the Clausing.

Best of luck!

Fred

 

 

 

On 03/03/2018 12:58 AM, grizzlybagworks@... [SOUTHBENDLATHE] wrote:



I picked up a Clausing 5914 two days ago from a local machinist/fabricator.  Everything about the machine looked great except I wasn't able to inspect the spindle (mistake #1) because the collar was seized up pretty good around the 3-jaw chuck.  It measured ~.006" runout so I figured the spindle was good and I looked into the bore and inspected the taper to confirm they were free from damage.  I figured I was in the clear.  Turns out, I was not.
 
When I got home I was able to break the collar free and remove the chuck.  I put an indicator to the spindle and to my horror found that it had .0015" runout.  
 
The spindle is bent.  I'm almost 100% sure it happened by the transportation method employed by the previous owner.  When my friend I returned with some plywood and dollies we found the original owner had already moved the lathe 2 0 feet or so.  He put a solid piece of steel through the chuck, wrapped a chain around that and hoisted the machine in the air by the spindle.   We expressed concern but he said he'd been doing it that way for 40 years and has never had a problem.  We didn't argue the point since he was so much more experienced and had moved dozens of machines (mistake 2)

Do you guys have any ideas to try and repair it?
 
Worst case scenario I suppose is that I purchase a new backplate and face/turn it, then mount a chuck to it.  Since the spindle is keyed it will always register to the same location.  Hate the idea of loosing the ability to use 5C collets with the machine (I have the drawbar/adapter) and not being able to use the original 1-piece 4-jaw chuck, but I just don't know how else to approach it. 
 
Any input welcome!  Thank you guys!!

https://www.youtube.com/watch?v=YaoUv4drTZ8
 


 


Re: Clausing 5914 Bent Spindle Question (w/ Video)

Ryan K
 

So sorry guys!  This was meant to be posted in the Clausing Group.  Sorry about that!  However, I know there are a lot of very smart guys in here so I'd appreciate any ideas.  Thank you!


Clausing 5914 Bent Spindle Question (w/ Video)

Ryan K
 

I picked up a Clausing 5914 two days ago from a local machinist/fabricator.  Everything about the machine looked great except I wasn't able to inspect the spindle (mistake #1) because the collar was seized up pretty good around the 3-jaw chuck.  It measured ~.006" runout so I figured the spindle was good and I looked into the bore and inspected the taper to confirm they were free from damage.  I figured I was in the clear.  Turns out, I was not.

When I got home I was able to break the collar free and remove the chuck.  I put an indicator to the spindle and to my horror found that it had .0015" runout.  

The spindle is bent.  I'm almost 100% sure it happened by the transportation method employed by the previous owner.  When my friend I returned with some plywood and dollies we found the original owner had already moved the lathe 20 feet or so.  He put a solid piece of steel through the chuck, wrapped a chain around that and hoisted the machine in the air by the spindle.   We expressed concern but he said he'd been doing it that way for 40 years and has never had a problem.  We didn't argue the point since he was so much more experienced and had moved dozens of machines (mistake 2)

Do you guys have any ideas to try and repair it?

Worst case scenario I suppose is that I purchase a new backplate and face/turn it, then mount a chuck to it.  Since the spindle is keyed it will always register to the same location.  Hate the idea of loosing the ability to use 5C collets with the machine (I have the drawbar/adapter) and not being able to use the original 1-piece 4-jaw chuck, but I just don't know how else to approach it. 

Any input welcome!  Thank you guys!!

https://www.youtube.com/watch?v=YaoUv4drTZ8
 


Re: collet adapter 14 1/2"

John M
 

4C is correct
--------------------------------------------

On Fri, 3/2/18, jfriend314@gmail.com [SOUTHBENDLATHE] <SOUTHBENDLATHE@yahoogroups.com> wrote:

Subject: [SOUTHBENDLATHE] Re: collet adapter 14 1/2"
To: SOUTHBENDLATHE@yahoogroups.com
Date: Friday, March 2, 2018, 9:20 PM


 









Cuda, what collets do you have or intend to use???
The SB tooling drawing says a 14 1/2" lathe takes
3/4" collet.
The
small bore SB 13" takes an 11/16" collet which is
the 2-A (not the body diameter but the largest diameter the
collet will hold).
3/4" collet was probably
4C.
John









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Re: collet adapter 14 1/2"

comstock_friend
 

Cuda, what collets do you have or intend to use??? The SB tooling drawing says a 14 1/2" lathe takes 3/4" collet.

The small bore SB 13" takes an 11/16" collet which is the 2-A (not the body diameter but the largest diameter the collet will hold).

3/4" collet was probably 4C.

John


Re: collet adapter 14 1/2"

eddie.draper@btinternet.com
 

None spare, but if you are anywhere near Ripley, Derbyshire, UK, you would be welcome to come & measure up to make a copy.

Eddie



From: "cudaboy66@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Friday, 2 March 2018, 1:57
Subject: [SOUTHBENDLATHE] collet adapter 14 1/2"

 
Anyone have one laying around for a 14 1/2" with the small bore




collet adapter 14 1/2"

John M
 

Anyone have one laying around for a 14 1/2" with the small bore


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