Will Thompson
Active member
It’s addictive!
It may cause you to go nuts and buy a 8X10 view camera!
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NSFW My favorite 8X10 photograph!
- Thread starter Will Thompson
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- 8x10 large format polaroid
It’s addictive!
It may cause you to go nuts and buy a 8X10 view camera!
Doug Kerr
Well-known member
Hi, Will,
Fascinating history to this locomotive, born in 1905. Many various serious modifications during its life. It originally operated in northern New Mexico. It in fact after retirement was in repose for a while in Madrid (MAD-rid) New Mexico, which, Will, I know has historical significance to your family.
An odd change during its life was when the original Walschaerts valve gear (the most common "modern" type) was replaced with the (older) Stephenson valve gear. I'm not sure just now what kind of valve gear it ended up with.
Thanks for the great shot.
Best regards,
Doug
Great shot.
Fascinating history to this locomotive, born in 1905. Many various serious modifications during its life. It originally operated in northern New Mexico. It in fact after retirement was in repose for a while in Madrid (MAD-rid) New Mexico, which, Will, I know has historical significance to your family.
An odd change during its life was when the original Walschaerts valve gear (the most common "modern" type) was replaced with the (older) Stephenson valve gear. I'm not sure just now what kind of valve gear it ended up with.
Thanks for the great shot.
Best regards,
Doug
Will Thompson
Active member
Doug Kerr
Well-known member
There are many fascinating design details to be seen in this photo.
We also note that the coupler operating rod (runs between simple handles on both sides, and at its center it operates a lever that releases the coupler) has a cute "kink" to clear the air brake angle cock (which is used to close off the path to the front air brake hose when it is not connected to, for example, the air brake line of a string of cars). It is called an "angle cock" as its design is such that the hose connected to it heads downward, consistent with their being substantial "slack" between the two connected hoses (and also so that an unconnected hose will hang in a nice posture of repose).
You may note the semicircular depressions on the front of the frame at both sides (only one clearly visible). These were used for a maneuver called "poling". In this, a car on one track in a marshaling yard (especially one "trapped" between other cars so that a locomotive could not get to it to move it) could be moved by a locomotive operating on an adjacent track, by pushing the car with a long steel (or steel-tipped wood) pole between the pole socket on the locomotive and a similar socket on the corner of the car.
All neat stuff!
Best regards,
Doug
For one, we see that the center 5 bars of the pilot (what civilians call the "cowcatcher") are depressed to make room for the coupler. (On many early locomotives, there was not seen to be any need for a coupler on the front, and then the pilot would have its more "obvious" design.)
We also note that the coupler operating rod (runs between simple handles on both sides, and at its center it operates a lever that releases the coupler) has a cute "kink" to clear the air brake angle cock (which is used to close off the path to the front air brake hose when it is not connected to, for example, the air brake line of a string of cars). It is called an "angle cock" as its design is such that the hose connected to it heads downward, consistent with their being substantial "slack" between the two connected hoses (and also so that an unconnected hose will hang in a nice posture of repose).
You may note the semicircular depressions on the front of the frame at both sides (only one clearly visible). These were used for a maneuver called "poling". In this, a car on one track in a marshaling yard (especially one "trapped" between other cars so that a locomotive could not get to it to move it) could be moved by a locomotive operating on an adjacent track, by pushing the car with a long steel (or steel-tipped wood) pole between the pole socket on the locomotive and a similar socket on the corner of the car.
All neat stuff!
Best regards,
Doug