Cincinnati LL horizontal mill

Wow! 7" is a bunch of water. Hope it didn't do too much damage. Mike
 
Got to love machines made to last forever. ,God I wish I weren't so screwed up. Sure would love a big ole mill and a lathe made during the war years. In my opinion we built our best machines during that time. Someday for sure if I live long enough ill have them , I've been cheated by disability but ill find away if it takes ten years. Proud to see your new beauty , few parts little paint some oil and she, ll be making chips as big as quarters. Good luck with her.
 
What a great find. That machine will make chips big enough to put back in the steel rack for average-sized projects!
 
Actually 6 to 7" rains are fairly common here. It was pretty spotty this time, we only got .25 at the house in south Austin but got nearly 7" at the ranch near San Marcos 25 miles away. I understand Waco got 12"! I haven't checked the fences yet.

Silverbullet, thanks, I agree with you. I worked for a tillage tool mfg out of High school, that place was filled with war Iron. Cincinnati and Ajax are all I can remember but those machines never wore out! Hang in there you will get what you want!

ghostdncr, the jury is still out on whether its a great find, but I'm encouraged so far. I like your comment, I hope it works out!

I think I have the Y feed issue sorted out now so I have movement on all three axis in the manual mode. I have the table ready to lift tomorrow. Everything is really packed with grime and cuttings so I may have to pull the saddle as well. I'll know more then.
 
Not much progress yet.
My research indicates that the LL designator is merely a bookmark in the evolution of these machines. This machine seems to be a variant. Based on the speed and gearbox, the column and gearbox are pre LL, the rest of the machine is post LL. It makes me wonder if they were aging their columns and had a backlog of columns they need to use up.

The 5 coats of paint is soaking up LOTS of orange paint stripper. Evaporust is slowly removing the rust spot on the ways.
The table trip lever that was stuck is now free and seems to shift normally.
I haven't removed the table yet. I completed the procedure in the manual but there are conflicts. No big thing, just don't to damage anything by getting in a hurry.

I have questions that I hope someone can help answer.
The LL should have an Arbor Lock type system on it. This one doesn't have the outer locking ring, nor does it have a draw bolt. Are the draw bolt/arbor/spindle a single piece?
IMG_3368.jpg IMG_3387.jpg
I would also like to identify the two (of 4) hardened bars that I found in the coolant tank. There are no numbers so they are probably not mfg by Cincinnati.
And lastly, what is the clamp on the overarm used for?
Wow thats a really bad pic. I will get another today.

IMG_3460.JPG
 
Finally got the table off... Removing the knockout bar was a struggle. I had to "jus walk away" several times. Finally it slid right out no fuss....
Lots of hardened grease and cosmoline inside. Some heavy scoring on the inside face of the rear v, from the left apron in about 8". No corresponding marks on the table, although I haven't flipped it over to examine it thoroughly yet. Some flaking still visible on the uppers.
IMG_3407.JPG IMG_3409.JPG IMG_3414.jpg IMG_3417.jpg
 
And lastly, what is the clamp on the overarm used for?

I believe you mean the horizontal spindle support bracket that is sitting on your table in the second picture of your post #4 above, right?

Check out this book:
http://www.hobby-machinist.com/resources/cincinnati-a-treatise-on-milling-and-milling-machines.2771/

Here's a picture of one in use (from that book):
upload_2017-5-7_20-26-43.png

Note this machine has the solid round overarm (like mine) not the dovetail overarm they used on "newer" machines like yours.
Also note that picture also shows an A-frame support that bolts tot the knee for even more rigidity.
The list of parts is on the next page of that book.

Hopefully that scoring you found is only for a limited length (much shorter than the dovetails) so it will be "averaged out".

-brino
 
I believe you mean the horizontal spindle support bracket that is sitting on your table in the second picture of your post #4 above, right?
Actually its the device clamped to the end of the overarm. Its hard to see in the photo. Sorry got busy with other stuff and forgot get a better pic.

The scoring goes in about 8" then stops. I find it odd that there's no scoring on the table.

Thank you for posting "treatise" I know that was quite a bit of work.
I had looked at it some time earlier. It's a interesting look back at not only the beginning of these machines and their operation, but at culture as well.
 
What is the weight of Cincinnati #2 LL


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I don't actually know, it must have been more than 4000, my tractor wouldn't lift it. I had to use the excavator.
 
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