Date   

Re: Looking for headstock clamp for 1916 18"

Greg Mekkes
 

Should be doable, I actually work at NASA, so even if it did require some rocket science... :) Actually, appreciate the ideas and hearing what has been done. I'm slowly giving up on attempting to make it all original, need to at least be functional! 

On Sep 27, 2017, at 4:13 PM, oscar kern kernbigo@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 

not rocket science make one out of steel


On Wednesday, September 27, 2017 1:03 PM, "'Jim B. ' Jim@... [SOUTHBENDLATHE]" <SOUTHBENDLATHE@...> wrote:


 
I once broke the tailstock clamp on my SB-9. I eventually found a replacement on eBay but in the meantime, many years, I used a brass block, milled to fit the bed width and with a slight step so it road only on the bottom of the ways.
I probably used that for 10 years or more.
 
I would try, Ted, latheman2@... and see if he has a part.
 
 
Jim B.
 
From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Wednesday, September 27, 2017 12:46 AM
To: southbendlathe@...
Subject: [SOUTHBENDLATHE] Looking for headstock clamp for 1916 18"
 
 
This is the headstock clamp at the end of the lathe. It is marked "13 16 18", so there appears to be some commonality among sizes. The one I have is cracked in half, and I would be interested in any leads on finding a replacement for it. A composite photo is attached. Thank you for your help.
 
Greg Mekkes

altVirus-free. www.avast.com



Re: Looking for headstock clamp for 1916 18"

oscar kern <kernbigo@...>
 

not rocket science make one out of steel


On Wednesday, September 27, 2017 1:03 PM, "'Jim B. ' Jim@... [SOUTHBENDLATHE]" wrote:


 
I once broke the tailstock clamp on my SB-9. I eventually found a replacement on eBay but in the meantime, many years, I used a brass block, milled to fit the bed width and with a slight step so it road only on the bottom of the ways.
I probably used that for 10 years or more.
 
I would try, Ted, latheman2@... and see if he has a part.
 
 
Jim B.
 
From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Wednesday, September 27, 2017 12:46 AM
To: southbendlathe@...
Subject: [SOUTHBENDLATHE] Looking for headstock clamp for 1916 18"
 
 
This is the headstock clamp at the end of the lathe. It is marked "13 16 18", so there appears to be some commonality among sizes. The one I have is cracked in half, and I would be interested in any leads on finding a replacement for it. A composite photo is attached. Thank you for your help.
 
Greg Mekkes

altVirus-free. www.avast.com



Re: Looking for headstock clamp for 1916 18"

Jim_B
 

I once broke the tailstock clamp on my SB-9. I eventually found a replacement on eBay but in the meantime, many years, I used a brass block, milled to fit the bed width and with a slight step so it road only on the bottom of the ways.

I probably used that for 10 years or more.

 

I would try, Ted, latheman2@... and see if he has a part.

 

 

Jim B.

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Wednesday, September 27, 2017 12:46 AM
To: southbendlathe@...
Subject: [SOUTHBENDLATHE] Looking for headstock clamp for 1916 18"

 

 

This is the headstock clamp at the end of the lathe. It is marked "13 16 18", so there appears to be some commonality among sizes. The one I have is cracked in half, and I would be interested in any leads on finding a replacement for it. A composite photo is attached. Thank you for your help.

 

Greg Mekkes


Virus-free. www.avast.com


Looking for headstock clamp for 1916 18"

Greg Mekkes
 

This is the headstock clamp at the end of the lathe. It is marked "13 16 18", so there appears to be some commonality among sizes. The one I have is cracked in half, and I would be interested in any leads on finding a replacement for it. A composite photo is attached. Thank you for your help.

Greg Mekkes


Re: Need change gear box for a 16"

Roger Bickers
 

Would a heavy 10 qcgb fit an old wide bed/ heavy 9/ 9" junior? 


On Mon, Sep 25, 2017 at 5:32 PM, Guenther Paul paulguenter@... [SOUTHBENDLATHE]
wrote:
 

No the 10" QC will not work on a 16" 
 
GP



From: "jkling222@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Monday, September 25, 2017 5:29 PM
Subject: [SOUTHBENDLATHE] Re: Need change gear box for a 16"

 
I have a heavy 10 box - I assume that it would not fit a machine as big as a 16"



Re: Need change gear box for a 16"

Guenther Paul
 

No the 10" QC will not work on a 16" 
 
GP



From: "jkling222@... [SOUTHBENDLATHE]" <SOUTHBENDLATHE@...>
To: SOUTHBENDLATHE@...
Sent: Monday, September 25, 2017 5:29 PM
Subject: [SOUTHBENDLATHE] Re: Need change gear box for a 16"

 
I have a heavy 10 box - I assume that it would not fit a machine as big as a 16"



Re: Need change gear box for a 16"

john kling
 

I have a heavy 10 box - I assume that it would not fit a machine as big as a 16"


south bend 9 and 10 k quick change gear box

john kling
 

Are the internal gears all 16 dp?

Also a calculation for the 10L gear box indicates 14 dp - is that right?


Re: Unknown collet type, where does it fit on?

Jim_B
 

Its 9 here. I have been trying to prize a rubber gater on the brake clutch peddles of the MG. Lots of sweat.

Some years ago I purchased a small vise on eBay. It was mounted on a collet like post The add said  “Fits SB 9” lathe. I assumed 3C. Well when it came it no way resembled a 3C. It did however look a lot like the collets you show. With that long slot don the body. Although it must have had a somewhat smaller diameter. SB-p will accept 1/64 over ¾” 

I queried the  seller and he said he had a complete set of these collets, whatever they were.

 

Since he did not say 3C The chuck sat there for a long time One rainy day I broke down and made a new 3C spigot for it.

 

Now those collets look like they may be Rivett collets.  That was what mine was.

See Attached.

 

 

Jim B.

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Sunday, September 24, 2017 1:45 PM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] Unkown collet type, where does it fit on?

 

 

I found 24 collets. Th mesurements are 20.8mm 25G/inch thread.
I hoped they woud fit a SB10 heavy, but the do not fit the drawbars I own. I do not know if the drawbars I own are from a SB10 heavy.

https://photos.app.goo.gl/5X5VYtcHVhPjY4Dt2

 


Virus-free. www.avast.com


Re: Unkown collet type, where does it fit on?

John Losch
 

9/24/17

To all,  

I have eight or ten similar collets to those in “Silverrs” photo.  Mine came from the E. Howard Clock factory, in Waltham, MA at that time.  When I worked there in the early fifties they were still used in the repair department to hold and bore one off gear blanks or finished gears being mounted to clock arbors.  I do not remember the shank diameters of mine, but I know they have a 1/2” diameter 24 tpi thread for the draw bar.  Mine are comparable to the 3C collets I use in my 9” South Bend.

The collets I have were of three metals.  The smaller ones are from steel, a couple are brass, and I guess were special order from the tool room, and the largest appear to be made from cast iron.  Most of the ones in the picture close against the taper in the throat of the spindle collet adapter as would an ordinary wire collet.  The larger ones that have a taper going out to the rim use a special adapter with a corresponding taper screwed to the nose of the lathe spindle.  

Nelson is right in his observation that they are “Watchmaker’s” collets.  In that trade they are called “Wheel chucks.”  I have a set for my 8 MM watch lathe, and I know they were also made for 10 MM lathes: I have a friend who lets me borrow his set when I need them.

Jcl




On Sep 24, 2017, at 3:03 PM, Nelson Collar nel2lar@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 

They look like watch makers collets. 

On Sunday, September 24, 2017, 1:48:15 PM EDT, silverrs@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:


 

I found 24 collets. Th mesurements are 20.8mm 25G/inch thread.
I hoped they woud fit a SB10 heavy, but the do not fit the drawbars I own. I do not know if the drawbars I own are from a SB10 heavy.

https://photos.app.goo.gl/5X5VYtcHVhPjY4Dt2





Re: What collets, please

eddie.draper@btinternet.com
 

Well folks, I've done my measuring and compared results with the tables of lathe dimensions and collet dimensions in the files section.  Sure enough, toolroom lathe no. 143151, 14.5" x 6', ex works about Sept or Oct 1943, plated as "This machine conforms to orders of the war production board" and shipped straight across the atlantic to the UK, where it was rebuilt by Sentinel of Shrewsbury dated 31/10/1961, is confirmed to have the smaller bore through the headstock mandrel and takes size 4 collets.  A fair proportion of a standard set of imperial round collets came with it.  Got no use for square ones that I can identify at present, but some hexagon  ones in larger sizes might have been handy, ideally metric, since metric size bar is much more readily available than either A/F or Whitworth hexagon sizes here.  This might be only a fad, as the size of hexagon that would conceivably enter a size 4 collet is a bit on the small side for what we make, anyway.  (Made a brace of 1.25" BSF nuts  with the 1.25" WW hexagon dimension a few weeks ago, because I needed increased bearing area to cover a significant clearance hole.)  Guess we'll have to manage without unless our failry godmother visits yet again.  In the interim, might try an internal grinder on the jaws of the 3 jaw.

Thanks to all for comments & assistance.

Eddie



From: Edward Draper
To: "SOUTHBENDLATHE@..."
Sent: Tuesday, 19 September 2017, 14:26
Subject: Re: [SOUTHBENDLATHE] What collets, please

Starting to get a bad feeling!  I took one to the Model Engineer Exhibition at Alexandra Palace last winter, and one of the traders there said he thought it looked a bit 4-ish.

I'll have acces to the lathe tomorrow and do some measuring.

Incidentally, since my initial post on this topic, I have found the data that Ted attached in the files section, but thanks all the same.

Eddie



From: "vogel.ted@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Tuesday, 19 September 2017, 14:18
Subject: Re: [SOUTHBENDLATHE] What collets, please

 
Here's some info that might help. Hope you're luckier than I, because my 15" uses 4C collets and they are rare. Luckily, I have a full set that came with my lathe.

Ted





Re: Unkown collet type, where does it fit on?

Nelson Collar
 

They look like watch makers collets. 

On Sunday, September 24, 2017, 1:48:15 PM EDT, silverrs@... [SOUTHBENDLATHE] wrote:


 

I found 24 collets. Th mesurements are 20.8mm 25G/inch thread.
I hoped they woud fit a SB10 heavy, but the do not fit the drawbars I own. I do not know if the drawbars I own are from a SB10 heavy.

https://photos.app.goo.gl/5X5VYtcHVhPjY4Dt2



Unkown collet type, where does it fit on?

Ruud
 

I found 24 collets. Th mesurements are 20.8mm 25G/inch thread.
I hoped they woud fit a SB10 heavy, but the do not fit the drawbars I own. I do not know if the drawbars I own are from a SB10 heavy.

https://photos.app.goo.gl/5X5VYtcHVhPjY4Dt2



Re: Keith Fenner making south bend lathe gears

roefa.excite
 

Thanks, Crawler -
I've been working vicariously with Keith for a few years now. Not only is he a master machinist, but also
a super nice guy! We can all learn some "good stuff" from his excellent videos.
Roger Memphis
 

-----Original Message-----
From: "d6 crawler d6crawler@... [SOUTHBENDLATHE]" [SOUTHBENDLATHE@...]
Date: 09/23/2017 11:09 AM
To: "SOUTHBENDLATHE@..."
Subject: [SOUTHBENDLATHE] Keith Fenner making south bend lathe gears

 

Watched this with my coffee this morning. Keith making up a bull gear for a 9"

https://www.youtube.com/watch?v=J4cmRHClU9c

.

 


Re: Keith Fenner making south bend lathe gears

Jim_B
 

Yes. 
I had a 10K spindle in my 405 Workshop with the original 1934 bull gear on it. 

Jim B,

On Sep 23, 2017, at 1:32 PM, Nelson Collar nel2lar@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 

is the bull gear on the 9 same as the 10K?

 

On Saturday, September 23, 2017, 12:09:49 PM EDT, d6 crawler d6crawler@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:


 

Watched this with my coffee this morning. Keith making up a bull gear for a 9"

https://www.youtube.com/watch?v=J4cmRHClU9c

.


Re: Keith Fenner making south bend lathe gears

Nelson Collar
 

is the bull gear on the 9 same as the 10K?

 

On Saturday, September 23, 2017, 12:09:49 PM EDT, d6 crawler d6crawler@... [SOUTHBENDLATHE] wrote:


 

Watched this with my coffee this morning. Keith making up a bull gear for a 9"

https://www.youtube.com/watch?v=J4cmRHClU9c

.


Re: What collets, please

d6crawler
 

I put these on my old web site since I have not heard of them being used on a south bend lathe.

Collet: http://www.bconsultinc.com/db/machining/5R_collet01.jpg
Collet Nose: http://www.bconsultinc.com/db/machining/collet_closer_nose01.jpg
Collet Closer: http://www.bconsultinc.com/db/machining/collet_closer01.jpg

The nose is tapered to fit the reverse taper on the collets. The closer itself has an insert that you adjust to set depth of closing. If you remove this you can then use the closer to close a 5C collet. The closing mechanism on on the back of the lathe is then run in reverse for a 5C versus a 5R. Pushing it draws the collet and pulling releases the collet.

There are also some pics of the guts of the turret head. Whoever owned this before me took it apart and put it back together with the timing out between the bevel gear and the worm gear that rides on the pin. This kept the turret from auto advancing. I took it apart and scratched my head for a while before seeing the issue. Once I rotated the assembly around to the correct position all the bits worked again. I also had to remake the stop block shaft. It threads into the block and then locks with a grub screw. Someone had tried to unthread it without loosening that screw and the threads on the shaft were unusable. I made up a new shaft on my SB 9 and put the whole thing back together.


Daniel

On Wed, Sep 20, 2017 at 09:32:42PM -0400, Paolo Amedeo machineshop@medeo.net [SOUTHBENDLATHE] wrote:
By enclosing "5R" in quotes, I've managed to get at least one relevant
result: https://www.shophardinge.com/product.aspx?partNo=41630000000000

It looks like a screw-machine type of collet. I have seen after-market
collet chucks to be mounted on the spindle nose and having a lever for
opening and closing the collets but, if I remember correctly, used
double-angle collets.

It would be interesting to see a couple of pictures of your collet setup.

Paolo
Damascus, MD


On 09/20/2017 06:58 PM, Gregg Eshelman g_alan_e@YAHOO.COM [SOUTHBENDLATHE]
wrote:
That is a tough one because all the search sites insist the searcher is an
idiot, you MUST really mean 5C, so here's all the stuff on 5C collets when
you've entered 5R collet.


On Wednesday, September 20, 2017, 11:53:25 AM MDT, d6 crawler
d6crawler@yahoo.com [SOUTHBENDLATHE] <SOUTHBENDLATHE@yahoogroups.com>
wrote:


I have 5Rs on one of my lathes. I can't even find a reference to them
anywhere let along a 5R collet. I am stuck with what I have which
fortunately is a reasonable set.
.


Re: What collets, please

d6crawler
 

That is interesting. I had gone through the NEME docs but missed that one or glossed over it. These do not appear to be the 5R collets since they are listed as 1. max dia. 1" and 2. threaded. The 5R collets do not draw into the spindle they are pushed into the nose and have no threads. The closer actually pushes rather than pulls.

On Fri, Sep 22, 2017 at 09:50:12PM +0000, houdini houdini969@yahoo.com [SOUTHBENDLATHE] wrote:
thought this might be of interest.
Rivett New Style Collets


|
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|

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Rivett New Style Collets
| |

|

|




From: "d6 crawler d6crawler@yahoo.com [SOUTHBENDLATHE]" <SOUTHBENDLATHE@yahoogroups.com>
To: "'Al Knack' arknack@comcast.net [SOUTHBENDLATHE]" <SOUTHBENDLATHE@yahoogroups.com>
Sent: Friday, September 22, 2017 4:11 PM
Subject: Re: [SOUTHBENDLATHE] What collets, please

  $413 each per the sales person.

On Wed, Sep 20, 2017 at 09:39:00PM -0400, 'Al Knack' arknack@comcast.net [SOUTHBENDLATHE] wrote:
Are they 5R Rivett?

https://www.shophardinge.com/product.aspx?partNo=41630000000000



Al



From: SOUTHBENDLATHE@yahoogroups.com [mailto:SOUTHBENDLATHE@yahoogroups.com]
Sent: Wednesday, September 20, 2017 6:59 PM
To: d6 crawler d6crawler@yahoo.com [SOUTHBENDLATHE]
Subject: Re: [SOUTHBENDLATHE] What collets, please





That is a tough one because all the search sites insist the searcher is an idiot, you MUST really mean 5C, so here's all the stuff on 5C collets when you've entered 5R collet.





On Wednesday, September 20, 2017, 11:53:25 AM MDT, d6 crawler d6crawler@yahoo.com [SOUTHBENDLATHE] <SOUTHBENDLATHE@yahoogroups.com> wrote:





I have 5Rs on one of my lathes. I can't even find a reference to them anywhere let along a 5R collet. I am stuck with what I have which fortunately is a reasonable set.



_____

Posted by: Gregg Eshelman <g_alan_e@yahoo.com>

_____
.
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Re: What collets, please

d6crawler
 

Yep, me too. Fortunately I have a reasonable number of collets. Unfortunately the job I want to do I don't have collets for. Now I can take the nose part of the closer off and the adapter off of the back portion and then I can close 5C collets in the spindle but... There is a problem. The ring for the spindle that locks the nose in needs to seat onto something e.g. a nose protector and that I don't have.

At this point I am looking at making a nose protector and then getting 5C collets for the job I want to do. Still chewing on it but I think I want a longer term solution.

Of course I could do the job on the 16" SB but it is a toolroom lathe and the rivett is a turret production lathe so if I have the nose protector made up then everything is much faster.


On Fri, Sep 22, 2017 at 09:24:26PM -0400, 'Al Knack' arknack@comcast.net [SOUTHBENDLATHE] wrote:
I'd buy another lathe before paying those prices.



From: SOUTHBENDLATHE@yahoogroups.com [mailto:SOUTHBENDLATHE@yahoogroups.com]

Sent: Friday, September 22, 2017 3:19 PM
To: 'Al Knack' arknack@comcast.net [SOUTHBENDLATHE]
Subject: Re: [SOUTHBENDLATHE] What collets, please





$413 each per the sales person.



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Keith Fenner making south bend lathe gears

d6crawler
 

Watched this with my coffee this morning. Keith making up a bull gear for a 9"


https://www.youtube.com/watch?v=J4cmRHClU9c

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