[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [TCML] Primary selfC
Bart -
One of the many ways to avoid patent infingements back then, you have to admit its clever if not complicated. There would definately be some practical restrictions for the size of the coil, but for diathermy or a smaller demo coil it may have worked fine...
To one extent, all of these people were selling Tesla coils and Tesla was given little or no credit (and definately little or no money), but on the other hand the coils that Tesla did patent were so complicated to construct it is no wonder they were not made to a large extent (circuit controller patents, each one a different variation of TC power supply for various effects). I mean, his circuit controller patents are mind-boggling - pure genius in many aspects - and well out of reach for most people to construct, even comprehend at times...even today with CNC mills and lathes those components are seriously complicated. (And even more expensive!)
In the Leland Anderson book on Alternating Currents there is a wonderful passage though of Tesla remarking how after one of his patents expired, a german company started making a mercury turbine interrupter using his principles and selling them for X-Ray work. They sent him one as a "present" of sorts. (I have some pictures of a german-made interrupter specifically called "Tesla" interrupter. I have to find some photos...more digging)
Tesla, though later in life, appeared to have actually appreciated that they sent it to him. At least they had the courtesy to show him upfront that they were using his ideas and making money off of them!
Jeff
> Date: Sun, 3 Aug 2008 11:12:05 -0700> From: bartb@xxxxxxxxxxxxxxxx> To: tesla@xxxxxxxxxx> Subject: Re: [TCML] Primary selfC> CC: > > Hi Jeff,> > Don't dig too hard. The concept is easy to comprehend. A usable Cpri > could be built as part of the ribbon primary winding if two actual > winding ribbons are used as opposed to the normal single ribbon winding > to form an actual parallel plate capacitance. No doubt that a primary > coil of this nature would be best to be encased in oil or maybe a wax > pack as you have done on many of your coils. The large C would certainly > dominate the tank. Given the geometry of both plates, impregnating in > wax or possibly oil filled, it would take some work to do properly.> > I don't realize an electrical benefit, but it would be fun to build > something different like that (which is as good a reason as any to do > it). It just shows there are more ways to skin a cat than one.> PS. Don't read this to your cat :'( .> > Regards,> Bart> > Jeff Behary wrote:> > Bart - > > I am digging and digging to try and find it for you. I have a 3" thick binder of non-Tesla Tesla Coils from 1890s - 1940s. I can't find it, and hope I actually printed it out. I think I got it from the European patent office, which was up until a few years ago easier to search than the US Patent Office...> > > > > _______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxx> http://www.pupman.com/mailman/listinfo/tesla
_________________________________________________________________
Get more from your digital life. Find out how.
http://www.windowslive.com/default.html?ocid=TXT_TAGLM_WL_Home2_082008_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla