. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e frame and the upper one containedthe opening for the dry pipe, while theother two contained handholes fittedwith suitable covers. The lower sheet of the combustionchamber was cut out for a short dis-tance back of the front and connected to those toward the front amounted to butlilllc. l-roin the front sheets of the combus-tion chamber 186 tubes, i 1-4 inch outsidediameter, extended backward to the frontof the firebox, where they were curvedupward and entered the crown sheet. It is said that
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e frame and the upper one containedthe opening for the dry pipe, while theother two contained handholes fittedwith suitable covers. The lower sheet of the combustionchamber was cut out for a short dis-tance back of the front and connected to those toward the front amounted to butlilllc. l-roin the front sheets of the combus-tion chamber 186 tubes, i 1-4 inch outsidediameter, extended backward to the frontof the firebox, where they were curvedupward and entered the crown sheet. It is said that experiments made byplacing small pieces of metal in the frontof these tubes showed them to havebeen drawn backward and upward to thecrown sheet by the intensity of the cir-culation. This boiler would undoubtedlysteam well, but it was next to impossi-ble to keep the tubes from leaking, whilethe difficulty of access thereto and thegreat cost of repairs, combined withsome difficulty in maintaining a workingwater level, forbade their renewal in orig-inal form. Quite a number were in use at one ria- s. a sort of sub-passage, which formed anadditional passageway for smoke andgases from the chamber to the smokebox. From the bottom of this sub-chambera 6-inch pipe having a trumpet-shapedopening was carried upward and back-ward to a point about mid-length of thecombustion chamber, where it entered asquare tube or box standing object of this pipe was evidentlyto admit air to the chamber and it isprobable that the vertical pipe or boxmarked E contained numerous perfora-tions, but they are not shown in thedrawing. The part G would appear tobe only a brace or support for the hori-zontal air inlet, and placed at an angleprobably to prevent injury from expan-sion. Four openings were provided as shownat / / for admission of air to the and another opening directly inthe firebox through its front leg, ad-mitted air in a thin film by means of asort of valve, but Mr. Hol
Size: 2085px × 1198px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
