[AT] Discharge Chains

Richard Fink Sr rfinksr at verizon.net
Sat Apr 2 14:47:28 PDT 2016


I have had a little experience with them not as much as i should have 
had. The older boys took all that fun.
R Fink
PA

On 4/2/2016 4:45 PM, Thomas O Mehrkam wrote:
> We had a Model T vibrator coil at the university.  We had more fun with
> that connecting it to door knobs.  We could keep the dorm monitor out of
> our hare for hours.
>
> On 4/1/2016 4:42 PM, Richard Fink Sr wrote:
>> Did you ever change a condenser then load it and just lay it down some
>> where. Surprise
>> R Fink Sr
>> PA
>>
>> On 4/1/2016 4:30 PM, tmehrkam at sbcglobal.net wrote:
>>> I always liked to connect a chain or wire to a spark plug wire and wait for someone to come over and lean against the Truck.
>>> :-}
>>> Do this at your own risk. Some folks will take exception to this.
>>>
>>>          From: Indiana Robinson <robinson46176 at gmail.com>
>>>     To: Antique tractor email discussion group <at at lists.antique-tractor.com>
>>>     Sent: Friday, April 1, 2016 3:11 PM
>>>     Subject: Re: [AT] Discharge Chains
>>>       
>>> Check the grounds.
>>> Check the grounds.
>>> Check the grounds.
>>> :-)
>>> Those were ground straps made of conductive rubber, some had fine wire in
>>> them and I think some just had a lot of conductive carbon in the rubber.
>>> Many that you bought at a parts store or the old J. C. Whitney catalog had
>>> a lightning bolt painted on one face of them. They started putting them on
>>> cars around 1950 or as little ealier when they were switching from cloth
>>> seats to plastic seat covers. Those dang things could really nail you when
>>> your feet touched the ground or you reached over and touched another person
>>> who had just slid into the car.
>>> I don't really recall the trucks here ever dragging chains or a strap... I
>>> do recall always grounding a tractor when doing flat belt work usually with
>>> a steel bar or sometimes a chain. I did normally drag a chain from the rear
>>> axle of my SP combines for two reasons. One was for a ground to keep the
>>> windshield cleaner and the other was when dragging about a 6' piece of well
>>> secured fairly heavy chain when running corn in wet weather it saved
>>> crawling under a combine in the freshly churned mud to hook a chain or tow
>>> strap to the axle to tow it out backward if you get stuck.
>>> As far as lightning goes the best explanation I ever read was by a weather
>>> scientist (I can't spell meterihffjikist right now) who said that a bolt of
>>> lightning may well have traveled over 20 miles across the sky... It is
>>> silly to think it is now going to stop for 4 inches of rubber.  :-)
>>> As to metal skins or wire cages you can Google Faraday Cage Effect.
>>> In wood working we often use plastic pipe on dust collectors and it is bad
>>> about building static. You can ground it either by running a bare wire
>>> inside or outside and to a ground. You don't need a wire for metal pipe as
>>> long as a ground connection is maintained at one end or the other. That
>>> mostly applies to commercial woodshops and sawmills etc. In a home shop you
>>> just don't want the plastic to be zapping you all of the time.
>>> In commercial shops there can be risk of fire or dust explosion from static
>>> sparks. In spite of a lot of wild stories floating around on the web I have
>>> read that there is no statistical record of a home shop explosion or fire
>>> in a dust collection system unless there were flammable solvents being
>>> used. Still better safe than sorry I guess. As they say "It couldn't hurt
>>> anything".  :-)
>>>
>>>
>>> .
>>>
>>> On Fri, Apr 1, 2016 at 7:58 AM, Henry Miller <hank at millerfarm.com> wrote:
>>>
>>>> Won't male any difference to lightning. Remember, lightning has already
>>>> traveled a mile or more through the air, nothing you can do in a few feet
>>>> will stop it. All you can do is provide a better path than you to ground.
>>>> Metal car bodies are ideal as the lightning can travel around you and then
>>>> jump the last few inches to the ground.
>>>>
>>>> I don't put much faith in tires as a discharge path for static buildup. It
>>>> probably doesn't matter much while the truck is moving though. Static
>>>> electricity is on the outside and anything flammable is inside. It is only
>>>> when loading or unloading that you need to worry, as that is when the
>>>> contents are on the outside for a moment. So connect the ground wire.
>>>>
>>>>
>>>> On March 31, 2016 11:33:43 PM CDT, Ralph Goff <alfg at sasktel.net> wrote:
>>>>> On 3/31/2016 10:51 AM, Ray Trimble wrote:
>>>>>> Growing up in Northern Louisiana in the early 50's I would see trucks
>>>>> dragging a chain with sparks flying, Dad said that this was to keep a
>>>>> static charge from building up. What has been done to eliminate the
>>>>> need for these?
>>>>>> _______________________________________________
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>>>>>> http://www.antique-tractor.com/mailman/listinfo/at
>>>>>>
>>>>> Probably something to do with preventing static electricity build up.
>>>>> I've tried it with the combine when harvesting. The theory being that
>>>>> the straw passing through the moving parts of the combine builds up
>>>>> static electricity and it causes dust to stick to the machine and
>>>>> windows. I can't say for sure if it helps all that much.
>>>>> Not sure if it would be such a good thing during a lightning storm.
>>>>>
>>>>> Ralph in Sask.
>>>>> _______________________________________________
>>>>> AT mailing list
>>>>> http://www.antique-tractor.com/mailman/listinfo/at
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