Re: Steam pump question *LINK* *PIC*

Hi Tom;
When I caught the "steam pump" bug, the management of the plant I work at allowed me to take pictures of the plant's fleet of steam pumps. They are in the album linked below. All but three or four were out of service, usually in parts of the plant that are no longer running; so the whole plant doesn't look as bad as some of the pictures.
Those parts of the plant are being demolished as I type this, and as I mentioned, I tried to find homes for some of them. Some of the larger ones were more than I could handle with a crowbar, ramps and a pickup truck and have since been scrapped.
Back in a railroad vein, some steam locomotives had a valve gear that worked along the same line as a duplex steam pump. It was know as Young's valve gear, and it also took advantage of the fact that each side was quartered to use the piston rod from one engine to move the valve stem of the other engine.
The closeup below shows what the valve gear looks like on a duplex steam pump. Young's valve gear was little more complicated than this because you needed to allow for cutoff and reverse. The Southern Railroad was a user of Young valve gear I believe; I don't know if any NG locomotives were fittd with it.
The pump in the picture below is the same Worthington shown in the above photo; it took a little elbow grease to cosmetically restore it. Some of the maintenance folks in the plant couldn't believe it was the same pump.
-James Hefner
Hebrews 10:20a