Yep...it's on the cutting edge of techniques. HA HA (pun intended).
I havent had time to look at the file....but I'm saving all these
emails...for when I Do have time (wishful thinking). THANKS for the
info.
PS. I some how forgot my ArcheoSeek Login...so CANT get on there.
Someone posted a comment to one of my posts (a while back)...and I cant
get to it to read it. :o( Shoot.
>-----Original Message-----
>From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On
>Behalf Of Bob Skiles
>Sent: Wednesday, May 23, 2007 2:53 PM
>To: [log in to unmask]
>Subject: Re: Carbon electrode rods - types
>
>Hey, Carol!
>
>Is dissection a new conservation technique I haven't heard
>about? *chuckle* There's no need to slice-and-dice your
>battery to get a peek at its innards.
>There are great illustrations in that authoritative (ca 1919)
>Gutenberg reference Marty provided ... start reading on p99
>for an excellent discourse on the construction & functioning
>of a dry cell, and the illustration is on
>p103:
>
>www.gutenberg.org/files/15617/15617-h/15617-h.htm
>
>Although there were about 25 manufacturers of carbon rods in
>the U.S. by 1900, the National Carbon Company (now subsumed
>within the giant Union
>Carbide) was the major manufacturer, and probably produced
>more than 70% of all the rods for commercial batteries by 1900.
>
>"The National Carbon Company was founded in 1886 by the then
>Brush Electric Company executive W. H. Lawrence. The company
>would supply carbon items needed in electrical devices such as
>carbon-arc electrodes, motor brushes and rods used in
>carbon-zinc batteries. That same year the first commercial
>battery went on sale. It was a carbon-zinc battery introduced
>by National Carbon Company. In 1898 the National Carbon
>Company introduces the first D cell battery. In 1905, National
>Carbon Company which had supplied "Eveready"
>with materials for their batteries, bought a half interest in
>the company for $200,000. Conrad Hubert remained president and
>there was little change in the general policies of the
>company. The name was changed to "The American Ever Ready
>Company". In 1914, American Ever Ready became part of National
>Carbon Company now forming a manufacturer specializing in both
>batteries and lighting products."
>http://www.ideafinder.com/history/inventions/battery.htm
>
>Incidentally, the carbon electrodes that were first used in
>the dry cells were based on earlier research work done by
>Charles F. Brush (Brush Electric Company principal) developing
>improved carbon rods for lighting and contacts for the
>commutators on generators and motors. To this day, the carbon
>contacts in appliances like electric drills, saws and vacuum
>cleaners are known as "brushes."
>
>Bob Skiles
>~~~~~~~~
>Pleistocene extinctions? Clovis kaput? It was the bolide, stupid!
>
>----- Original Message -----
>From: "Carol Serr" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, May 23, 2007 12:00 PM
>Subject: Re: Carbon electrode rods - types
>
>
>Or the various types. ??
>Besised simple straight (cylinder) rods...we have found "lobed" ones,
>etc. We do have a complete (I assume) dry cell battery from our most
>recent project (soil remediation in downtown San Diego)...with a paper
>outer layer (cover). Am tempted to dissect it...to see all the
>layers...and get a better understanding...but, guess I probably
>shouldn't.
>
>Carol Serr
>Jones & Stokes
>CRM Lab Director
>9775 Businesspark Ave., Suite 200
>San Diego CA 92131-1642
>858-578-8964 * FAX 858-578-0578
>[log in to unmask] www.jonesandstokes.com
>
>
>>-----Original Message-----
>>From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On
>>Behalf Of Charles L Heath
>>Sent: Wednesday, May 23, 2007 6:50 AM
>>To: [log in to unmask]
>>Subject: Re: Carbon electrode rods - ID sources
>>
>>Larry, et al.
>>
>>Has anyone compiled a carbon rod/carbon core typology chart
>>for Late 19th/Early 20th c. cores?
>>
>>Thanks,
>>
>>Charles Heath
>>
>
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