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Sparky_NY
11-08-2009, 07:57 AM
I have a Royal handwheel type closer on my lathe and have wanted a lever type one. I picked up a nearly new Royal lever closer (less a couple parts) recently and have a question.

I need to make up the "spingle adapter", that is the piece that screws onto the outside of the spingle. It has a OD flange that has what almost looks like gear teeth around its perimeter. That section fits inside the aluminum hub on the main lever assembly. It is the first piece mounted in the installation.

Do those "gear teeth" around the perimeter of that hub on the spindle serve any purpose? Different brand closers have similar pieces. I need to make up that piece and if the "teeth" are not needed would like to skip that step for simplicity.

I hope my description is adequate.

smalltime
11-08-2009, 08:08 AM
As you adjust the closer for the proper tension, and you remove your workpeice. You can set that tension to remain the same by engaging a small lever located on the adjustment collar.
That is all those teeth do.

Sparky_NY
11-08-2009, 08:15 AM
As you adjust the closer for the proper tension, and you remove your workpeice. You can set that tension to remain the same by engaging a small lever located on the adjustment collar.
That is all those teeth do.

I think I understand. I tried to find a manual online for the Royal lever type closer but had no luck. Royal isn't making them anymore either.

nheng
11-08-2009, 08:22 AM
The lever that smalltime mentions is spring loaded with a small finger depression area. The longer end of this lever is spring loaded outward but I think is also a bit longer so it stays out at high RPMs.

I've been checking in here randomly lately and just noticed your PM. I'll dig it out of my "archive" later today. Den

JoeLee
11-08-2009, 09:38 AM
What type of spindle does your lathe have??

JL.............

Sparky_NY
11-08-2009, 12:26 PM
What type of spindle does your lathe have??

JL.............

Its a d1-3 camlock but I already have a royal handwheel closer setup so the proper collet closer insert is in the spindle already.

fasto
11-08-2009, 08:41 PM
Here's a pic of my Royal Lever Collet Closer, with the drawtube pulled out:
http://i451.photobucket.com/albums/qq232/fasto_tt/Misc/th_dsc00944s.jpg (http://s451.photobucket.com/albums/qq232/fasto_tt/Misc/?action=view&current=dsc00944s.jpg)
As was said, the little grooves keep the drawtube from turning. This lets you set the tension. Then, locking the lever gives the same tension each time. The spindle end fitting is very close fit to the spindle.
http://i451.photobucket.com/albums/qq232/fasto_tt/Misc/th_dsc00943s.jpg (http://s451.photobucket.com/albums/qq232/fasto_tt/Misc/?action=view&current=dsc00943s.jpg)
This pic is of the little thumb lever lifted up so the drawtube can be turned. When the thumb lever is pressed down it locks into those grooves, keeping the drawtube from rotating independently.
--
Aaron

nheng
11-08-2009, 09:51 PM
Here's the Royal mounting instruction sheet for the lever closer. Den

http://img.photobucket.com/albums/v319/nheng/royal_closer.jpg

JoeLee
11-08-2009, 10:19 PM
Looking back at your original post, the gear like disc or as Royal calls it the locating ring, the small spring loaded lever locks the drawtube to the spindle so drive will be transmitted through the tube without relying on a compressing fit as you tighten up the tube to your collet. The locating ring is hardened so the fingers wont wear it down. Are you trying to make one of these?? They are all the same for all the lever closers.

JL...............

JoeLee
11-08-2009, 10:25 PM
Looking back at your original post again. If you were to make the locating ring you wouldn't need all the slots for the lever to engage in, you could actually get away with one to lock the drive but you would have to rotate teh tube more to find it when you wanted to engage it. The ring would definatly have to be hardened or the fingers would wear the face fast.

JL................

airbrush1
11-08-2009, 10:41 PM
Here is a photo of mine that is for a 1936 South Bend that is made on the same principle .... the parts are seperated a bit on the shaft for the photo. The small spring loaded finger latch catches in one of the grooves.

I had to make a new latch as mine was broken, I suppose it should be hardened too.

http://airbrush.smugmug.com/SBLATHE/CLOSER-1/CLOSER1/335819637_Gg2Fw-O.jpg

Sparky_NY
11-08-2009, 11:46 PM
Thanks so much for the info Guys. And, yes, I am going to make one.