Model of a Fire Hearth for Steam Engines. Model of a device for mechanically firing a boiler; A bin with movable bottom, operated by a handle with pally on a gear, is filled with coal through a small door; The bottom is stretched and the coal led from below to the grid; Due to two movable parts of the grid, operated with a lever and against decline, prevented a part of the container content of the container with a pal on a gear quadrant. Scale 1:10 (derived).

---

Size: 2500px × 2207px
Photo credit: © BTEU/RKMLGE / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: