[SEL] Re: Pinned Rings - Problems or Not?

[bill at antique-engines.com]

>>but the Bessemer has a semi-circular notch in the ends of
what are otherwise butt-end rings<<

I guess that's what I'm used to seeing on the pinned rings.

Of course, like the old addage goes:

'If every raven I see in my lifetime is black, that does not thus prove
that all ravens are black'

(or something like that!)

Bill

> Hi Curt,
>
> Sorry to burst your bubble bro.  I don't think the angled ends were
> anything like universal on pinned rings.  The Robertsonville shows that
> configuration, but the Bessemer has a semi-circular notch in the ends of
> what are otherwise butt-end rings.  According to Craig that's the normal
> configuration.
>
> See ya,  Arnie
>
> PS - one of the great tragedies of life is the murder of a beautiful
>      theory by a gang of brutal facts.  8-))
>
> Arnie Fero
> Pittsburgh, PA
> fero_ah at city-net.com
>
> On Tue, 19 Apr 2005, Curt wrote:
>
>> After digesting what both of you have written so well, you have helped
>> me answered a question I have had for a long time. That is, why did the
>> engine manufactures make the ring gaps with an approx. 45° angle instead
>> of butt ends? Bearing in mind what you have both written, to solve the
>> strange wear pattern that a pinned ring in conjunction with a butt end
>> gap would create, the solution was to make the gap on a 45°. This
>> assured the ring was wiping completely around the cylinder and would not
>> leave an unworn ridge down the length of the cylinder. Seems kind of
>> obvious now, but until I digested both of your points I had never put
>> the pieces together enough to realize that one was a function of the
>> other.
>
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