. American engineer and railroad journal . SHOWING ACTION OF CHAIN ON ACTION OF BOCKEB PINS ON STRAIGHT PULL ANI> ON SPROCKET.

---

Size: 2252px × 1110px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering