. The railroad and engineering journal . Fig. I. of Toledo, O. Fig. i shows a glass water-gauge provided withthis attachment, while figs. 3. 4, 5 and 6 show different formsof the valve upon a larger scale. The idea will be readily seen from the illustrations. It is to provide a supplementary valvewhich, in case of the breaking of the gauge, check-valve, orother attachment in any way will be at once automaticallyclosed by the greater pressure of steam in the boiler, and willthus prevent any escape of steam. It is well known that in FigA.

---

Size: 2345px × 1066px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887