[SEL] Sorta O/T..gear making

[George/Helen Myers]

Happy Birthday to both of us!!  Darn I wish I was your age!!!!

Helen
George L. & Helen S. Myers
The Ottawa Caretakers   ottawa at pa.net
Tel 717-536-3711
http://albums.photo.epson.com/j/AlbumList?u=1751540
http://community.webshots.com/user/doitnowo
  ----- Original Message ----- 
  From: Richard Strobel 
  To: The SEL email discussion list 
  Sent: Thursday, January 27, 2005 9:51 AM
  Subject: Re: [SEL] Sorta O/T..gear making


  Thanks for the link, Jim..."Chordal Addendum" is a new one for me.  I could 
  learn a lot from that chart.  Retention is the prob and I'm a year older 
  today.  One more year and I'll draw Guard retirement.  Kathy got me a '69 
  Toyota Landcruiser for B'day..got a real nice running 292 Chev engine..looks 
  good and ya can see the distributor.  Nice pto winch also...look out 
  snow!!!!  Warm and good tunes.

  Thanks again!!
  Rick


  ----- Original Message ----- 
  From: "Jim and Diane" <jd.kirkes at verizon.net>
  To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
  Sent: Wednesday, January 26, 2005 8:04 PM
  Subject: Re: [SEL] Sorta O/T..gear making


  > It seems unlikely to me that early engine people devised a unique gear
  > geometry.  This would have been a pretty demanding and expensive 
  > undertaking
  > and there would have been little if any advantage over what was already
  > invented. Almost surely these gears had a 14 1/2 degree pressure angle and
  > used an involute curve for the tooth form. There are other PA's in use 
  > today
  > and unless you are a real gear pro it almost impossible to eyeball 
  > different
  > pressure angles. There are also other tooth geometries besides involute, 
  > the
  > drawback is their shape makes them difficult to machine with no gain in
  > performance or life.
  >
  > For gear terms see http://shopswarf.orcon.net.nz/spur.html
  >
  > Jim
  >
  > Jim and Diane Kirkes
  > Hemet, CA
  > jd.kirkes at verizon.net
  > ----- Original Message ----- 
  > From: "Tommy Turner" <lcjudge at scrtc.com>
  > To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
  > Sent: Wednesday, January 26, 2005 6:16 PM
  > Subject: Re: [SEL] Sorta O/T..gear making
  >
  >
  > > JB,
  > >
  > >     I've done the same thing several times with good results.  I've
  > > found it best to purchase  the crank gear and the cam gear and replace
  > > them both.  Some of the old timers had an odd ball pitch on their
  > > teeth.  I had a friend who needed a gear made and the guy who cut it for
  > > him had to have a special cutter ground to match the other gear.  Some
  > > of the real early manufacturers may have ground their own cutters and as
  > > a result, it was their own "design".
  > >
  > > Tommy Turner
  > > Magnolia, KY
  > >
  > >
  > >
  > > jbcast at charter.net wrote:
  > >
  > > >>What is the best route to take to get gear(s) made?  One is a
  > combination
  > > >>i.e. two gears, one casting.  I also need a smaller gear...all 
  > > >>straight
  > cut
  > > >>teeth.  This is for manually traversing the carriage on my ole lathe.
  > Could
  > > >>the old ones be used for a pattern and is this something Rick Rowlands
  > could
  > > >>do?
  > > >>
  > > >>
  > > >>
  > > >Rick, get a Boston Gear or Rush Gear catalog, see if the gears are
  > available, width may be a little different, the center is adaptable also. 
  > On
  > my lathe I machined the hub and made a ring gear out of the new gear, 
  > heated
  > and shrunk it on and pinned it. On the double gear, if only one is bad, 
  > bore
  > it out amd press it on a shaft, bore the new gear and press it next to it.
  > > >J.B. Castagnos
  > > >Belle Rose, LA
  > > >
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  > > >
  > > >
  > > >
  > > >
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  > >
  >
  >
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