View Full Version : Jacobs#14
11-16-2001, 09:21 PM
I bought 3 Jacobs chucks a while back,the price was right and I needed a larger one for the lathe.I had keys for two of them in my junk drawer,but the other has got me stumped! It's a Jacobs#14 Spiral Gear Chuck,0 to 1/2",Knurled outside ring,in great shape,mounted on a #2 arbor. Called Jacobs Co. tech info.The lady that answered said there wasn't a #14 listed in her computer.It's lots older than she was!Patented Sept.16,02,Jan.26,09,Jan.5,15,Feb.17,25.
11-17-2001, 01:27 AM
What's it look like, I have a good colection of chuck wrenches, maybe too modern. I'm close, what you have to trade out of your junk, I like to trade. What's bad is that people bring me treasures and give them to me, thats where my pile of chuck keys came from.
Does it look like a normal chuck wrench?
I get off work at 7:00 in morning, get to town around 7:30, you might run up here some morning and we'll look. I sleep in middle of day, am around some in evenings.
11-17-2001, 07:44 PM
Halfnut,the key should look just like a regular Jacobs drill chuck key,except the teeth,instead of being straight cut,will be spiral or helical cut.I've asked some old timers and they've never seen one of these. It's a regular drill chuck,except the outside is knurled and the teeth are different.Give me a call sometime,I'm in the phone book. Thanks,George
11-18-2001, 04:57 AM
Ain't never seen such, lots of things I haven't seen yet, and have seen lots of strange things. I'll keep an eye out. Do you know Gerald Shaver in Lamar, his shop is just south of highway 160 on Truman st. east side of road. If anyone knows, this is the man.
Geralds trying to be retired, got him an airconditioned gun shop he said once to me, what am I doing over here messing with this welding stuff. He's in shop some, doesn't get there super early, but he lives directly across street.
11-18-2001, 08:05 PM
Halfnut,I've been to Shavers a long time ago.Also been to Potters a long time ago.We met Potter at an auction 23yrs.ago in Carthage.He and my wife hit it off great! I've still got one of his small screwdrivers.
I'll bet the reason this drill chuck is still in such good condition is that the key's been lost for years! I could probably find a replacement outer shell,with modern teeth. But this one intrigues me!
11-19-2001, 10:49 PM
I might have seen one of these critters when I was a wee fart but have never seen one since. If I come across one I will send it to you. I would not change it - it must be an important - but forgotten piece in tool history.
The thought occurs to me that this might have been on a hammer drill - is the inside rear of the chuck have a screw or countersink?
[This message has been edited by Thrud (edited 11-19-2001).]
11-20-2001, 10:59 AM
Hi Dave,the chuck is mounted on a crude #1,or #2 Morse taper shank.There is a slotted head screw inside like todays reversable drill chucks.The screw slot is smashed so that the screw isn't gonna be removed without some doctoring. If it is a hammer chuck,that would explain the smashed slot. It's a regular Jacobs,as far as the construction,3 jaws,geared outside ring,5/16 key hole.But the spiral cut top of the outside ring and the heavy knurling on the outside of the ring is different than I've ever seen.
I took pictures of it,but can't get them to go from the photo program to the net!
11-21-2001, 03:13 AM
I would go to the effort of removing the screw, The shank is probably threaded to the chuck with a 1/2"x20 thread and the screw prevents unscrewing of the chuck in reverse. Most of the time this screw will be a countersunk allen screw. Since this is a turn or the century (Feb 17, 1925) chuck a slotted screw is normal. These may have been custom chucks for someone like Craftsmen for their drills.
I suspect it might be a hammer drill chuck because of the knurled outer sleeve - I have seen this on Rohm chucks (better than Jacobs) and other Euro chucks for hammer drills.
Yup, I can't figure out the cut n' paste either - maybe drop Big Dave a note and ask him his secret (I think he is just holding out on the rest of us). I should know better, but computers really burn my arse these days...
On posting pictures...
It looks to me as though one has to put the picture on one's own web site somewhere, then just put a link to it into your posting here.
11-22-2001, 06:38 PM
If you find a source of keys, let me know. I just picked up spiral tooth chuck.
11-23-2001, 09:49 PM
Hi Jim,at least I know now that my chuck is not an only child! Can you take a photo and hang ithere so other chip makers know what they look like? George
11-23-2001, 10:49 PM
Guess I'm a gearhead and not a chiphead, I can't post a photo, but if anyone really needs to see one, e-mail me, & I'll send a blurry photo. By the way, mine is a #8-1/2 Super Chuck, 0-1/4". It is really a nice chuck, just can't work it. Any collectors?
11-23-2001, 10:52 PM
By the way, looks just like a regular Jacobs chuck, except gear teeth are like a spiral pinion gear vs. a straight pinion.