rkapuaala
1st Class Member
OZ
Conductor
Posts:618
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 | | 08/21/2008 2:28 PM |
| Jeff, Sir Brodie,
I'll see if I can scan some images this evening and post them. | |
I keep forgetting we're not in Kansas! | |
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rkapuaala
1st Class Member
OZ
Conductor
Posts:618
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| | 09/02/2008 1:59 PM |
| Sorry I have not been able to post a scan of 76, but, I've had a problem with my scanner and no time to fix it as of yet. I will probably have some time around the end of the week to figure out whats wrong with it, and then I will post the images. Sorry  | |
I keep forgetting we're not in Kansas! | |
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rkapuaala
1st Class Member
OZ
Conductor
Posts:618
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| | 09/10/2008 2:38 PM |
| Jeff,
I apologize for not being able to put up a scan of one of OR&L connies. My one windows machine seems to have crapped out, finally after 4 years of service. I'm still trying to locate the problem, but I think its time to break down and buy a new win machine, my only problem now is, I don't want to build it because I can buy it cheaper already built, but the ones I'v looked at all come with Vista, which I have heard is a piece of fecal matter. So the search and the fix go on in parallel. | |
I keep forgetting we're not in Kansas! | |
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Jeff Livingston
1st Class Member
Brakeman
Posts:38
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| | 09/10/2008 5:15 PM |
| Rick,
Not to worry, Jim's out of town for awhile anyway.
Jeff | | | |
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BarrysBigTrains
1st Class Member
Brakeman
Posts:10
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| | 09/11/2008 12:45 PM |
| Jeff,
I like your question, but I think the answers have been too elegant.
I think the designers wanted the counterweights on the wheels, which they did where they could. But the third (driving) axle required a weight too large for the space provided by the wheel, so outside it went. "Too large", because of the weight needed to counterbalance the mainrod/journal and any valve gear additions, like an eccentric.
Been a long time Jeff.
Barry - BBT | | | |
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Jeff Livingston
1st Class Member
Brakeman
Posts:38
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| | 09/12/2008 10:08 AM |
| Barry,
Great answer! I'm all in favor of the KISS principle. This could very well be the reason but my curiosity still leads me to wonder why some locomotives had the outside weights and some didn't. What were the differences in design or construction that may have dictated the outside weight over the inside or wheel weight? It has been a long time and I still haven't finished Navy Yard #17! Looking forward to your new "Connie" motor and gearbox, I lost another axle gear last Sunday.
Jeff Livingston
Kaneohe, Hawaii | | | |
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Semper Vaporo
1st Class Member
Cedar Rapids, Iowa
Engineer
Posts:1217
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| | 09/12/2008 2:04 PM |
| The weights are counterbalancing the rods, so the closer to the rods the better the counterbalancing without sideways stresses from being on oposite sides of the frame members. Some designs did not have room to fit the frame and weights and rods in the area given the gauge and trackside clearances so there were expedient designs to accomodate those things. Not always a "Best" design, but one that works for the capital expenditure being made.
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 C. T. McCullough
Cedar Rapids, Iowa
SA #37469
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james brodie
Rosedale East North Yorkshire
Brakeman
Posts:45
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| | 09/15/2008 1:38 PM |
| | we used to have some eccentrics in the cab! (I'm back) Jim. | | | |
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rkapuaala
1st Class Member
OZ
Conductor
Posts:618
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| | 10/22/2008 11:10 AM |
| 
Number 98,,, sister to 76 approximate date of photo between 1904 and 1905. | |
I keep forgetting we're not in Kansas! | |
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