Author Topic: Chain Drive Mag  (Read 1635 times)

Offline the phone house

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Chain Drive Mag
« on: April 16, 2013, 08:37:24 AM »
Can anyone help ID this Chain Drive Mag....
« Last Edit: April 16, 2013, 12:29:19 PM by the phone house »
Steve @ The Phone House

Offline Bill

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Re: Chain Drive Mag
« Reply #1 on: April 16, 2013, 11:26:49 AM »
Fascinating!

There are quite a few numbers stamped into the lower edge of the box. Can read them to us, or post a photo?

At first I thought it was just a ringer plus a magneto in a box, but there is an induction coil in there as well. Can you find a number on the coil?

Assuming that the crank is above the magneto shaft, the purpose would be to whirl that little 3-bar magneto much faster than the crank speed, presumably to get more voltage out of it - something that never occurred to me.

Can't wait to hear the answer.

Bill

Offline LarryInMichigan

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Re: Chain Drive Mag
« Reply #2 on: April 16, 2013, 12:19:56 PM »
That magneto was tested 116 years ago!  It would make sense that the magneto speed needed to be increased to ring through 10,000 ohms.

Larry

Offline the phone house

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Re: Chain Drive Mag
« Reply #3 on: April 16, 2013, 12:38:16 PM »
No marks or numbers on coil or mag.....
Steve @ The Phone House

Offline the phone house

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Chain Drive Mag 2
« Reply #4 on: April 16, 2013, 01:41:31 PM »
More photos of Chain Drive Mag, there are no marking on the Mag or Coil, Top Binding post are marked 1,2,3,4B,B,5.....Should i restor the wood box or leave as is??
Steve @ The Phone House

Offline Sargeguy

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Re: Chain Drive Mag
« Reply #5 on: April 16, 2013, 05:37:11 PM »
It shouldn't be too hard to restore, provided the magneto works, you just need the bell mounts, bells and screws.
Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline wds

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Re: Chain Drive Mag
« Reply #6 on: April 16, 2013, 05:43:50 PM »
i vote for restore.  Those are some great looking boxes. 
Dave

Online Doug Rose

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Re: Chain Drive Mag
« Reply #7 on: April 17, 2013, 07:13:43 AM »
These are a tough find. I have one with a the chain drive and nickel jingle bells with a leather strap for carrying. One of my favorites. I agree with Dave, restore it. This will look amazing when you are finished....Doug
Kidphone

Offline wds

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Re: Chain Drive Mag
« Reply #8 on: April 17, 2013, 08:07:19 AM »
A 3rd option is give me one of those boxes!
Dave

Offline HowardPgh

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Re: Chain Drive Mag
« Reply #9 on: April 17, 2013, 01:33:44 PM »
It is interesting that the center contact of the armature is contacted by a metal strip mounted on the side  of the box.
Howard

Online Doug Rose

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Re: Chain Drive Mag
« Reply #10 on: April 17, 2013, 08:21:47 PM »
Here are some pics, its  an Holtzer Cabot made in Boston. It is heavy, really heavy. Leather strap still is secure, but shows its age. No. I do not dare use the strap. This is one of my favorite tools. The chain drive is just so smooth. It is the only chain magneto I have ever seen in person. Nickel jingle bells and zoom in on the great cloth wires. I found it at a Flea market in Maine 7 or 8 years ago.

"$20 FIRM".....okay!

This is just as found, I just wiped of the dirt. Really amazing shape considering this bounced around in a truck. Don't you love the cut outs for the jingle bells....Doug
« Last Edit: April 17, 2013, 08:26:18 PM by Doug Rose »
Kidphone

Offline HarrySmith

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Re: Chain Drive Mag
« Reply #11 on: April 17, 2013, 09:00:04 PM »
Very Cool Doug! The wrench on the door is a nice touch, what is supposed to be in the brass holder where you have the key?
Harry Smith
ATCA 4434
TCI

"There is no try,
there is only
do or do not"

Online Doug Rose

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Re: Chain Drive Mag
« Reply #12 on: April 18, 2013, 07:17:55 AM »
Very Cool Doug! The wrench on the door is a nice touch, what is supposed to be in the brass holder where you have the key?
Harry....I thought is was to hold the key, but I have no idea if it should have been something else. I was amazed that it came with the key!....Doug
Kidphone

Offline Jim Stettler

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Re: Chain Drive Mag
« Reply #13 on: April 18, 2013, 08:43:11 AM »
maybe a screwdriver holder?
Just a guess
Jim
You live, You learn,
You die, you forget it all.