2025年2月26日 · PRR 3847, K-4S, c. 1938 : Description: WB. Here is an image of an official photo of (L to R) Pennsylvania Railroad engines #3847, #4745, #4837, and #3768. #3847 is a K-4S (4-6-2) "Pacific" built in Juniata in April of 1923, rebuilt by Lima with rotary cam poppet valves in 1939, and retired in November of 1953.

Here is an image of an official photo of (L to R) Pennsylvania Railroad engines #3847, #4745, #4837, and #3768. #3847 is a K-4S (4-6-2) "Pacific" built in Juniata in April of 1923, rebuilt by Lima with rotary cam poppet valves in 1939, and retired in November of 1953.

Three of them were fitted with different types of poppet valve gears, including No. 3847 shown here at East St. Louis in September 1950. This engine, built by the PRR's Juniata Shops in 1923, received the Franklin Type B rotary poppet valves in which the cam is driven by a shaft that rotates via a gear suspended in the center of the main driver.

No. 3768 sits with engine No. 3847. PRR K4 3768 with engine No. 5495. No. 3768 heads the first passenger train to cross the municipal bridge in St Louis in 1939.

Prompt SHIP & Quality, Careful, Waterproof PACK! Just as DESCRIBED & Perfect as PICTURED! I'm Very Happy and Great addition to my RR collection! Grateful THANKS!! -Dave …

Bottom Photo, Revised Caption: "PRR No. 3847 tried experimental [rotary cam poppet] valves on its K-4S engine at Juniata." Date: 8/29/1976 Location: Altoona, PA Map

PRR 3847, K-4S, c. 1938 : Description: WB. Here is an image of an official photo of (L to R) Pennsylvania Railroad engines #3847, #4745, #4837, and #3768. #3847 is a K-4S (4-6-2) "Pacific" built in Juniata in April of 1923, rebuilt by Lima with rotary cam poppet valves in 1939, and retired in November of 1953.

K4s 3847 got rotary poppet valves in 1945 (along the lines of the picture whose link you sent). All of the photos of K4s 3847 that I know of show her with the poppet valves. K4s 3847 definitely had Walschaerts valve gear in 1936. K4s 3847 definitely did not have a front end throttle (housing is the boxy shape around the smokestack) in 1936.

2025年1月1日 · PRR 3847, K-4S, c. 1938 : Description: WB. Here is an image of an official photo of (L to R) Pennsylvania Railroad engines #3847, #4745, #4837, and #3768. #3847 is a K-4S (4-6-2) "Pacific" built in Juniata in April of 1923, rebuilt by Lima with rotary cam poppet valves in 1939, and retired in November of 1953.

2024年12月5日 · This photo was printed on 8.5" x 11" Canon archival photo paper using Canon archival inks. Will not fade. Actual image size is 7 1/8" x 10 1/2".