. American engineer and railroad journal . ■VZ^ZZS2ZZZ7ZZZc ^iT/^. •tii,i;//i,iji>iiiiif/rr. ilH3^*/^ I ((d 268 THE AMERICAN ENGINEER [[June, 1893. ment. The balanced valves have besides the advantage thatthey wear less than valves, and reciuire less powerto move them. Tlie al^ehraie sum of the ^es and dis-advantages of uiilialanced valves and screw revei-sing-gear,and balanced valves and the old-fashioned lever cannot easilylie worked out on account of tlie ditliculty of assigning vahicsto the (lilTerent eknients. The counter\v<ights for the links are also deservin
. American engineer and railroad journal . ■VZ^ZZS2ZZZ7ZZZc ^iT/^. •tii,i;//i,iji>iiiiif/rr. ilH3^*/^ I ((d 268 THE AMERICAN ENGINEER [[June, 1893. ment. The balanced valves have besides the advantage thatthey wear less than valves, and reciuire less powerto move them. Tlie al^ehraie sum of the ^es and dis-advantages of uiilialanced valves and screw revei-sing-gear,and balanced valves and the old-fashioned lever cannot easilylie worked out on account of tlie ditliculty of assigning vahicsto the (lilTerent eknients. The counter\v<ights for the links are also deserving of aliention. TIk- foreign device consists ol two cylindrical shapedcastings each weigliiug lljs. each. The American deviceconsists of a light semi-elliptic spring attached to a short arm principal feature of the front and the arrangement of tlie de-Hector-plate and netting is to give an nnrcstricted the tubes to the stack, without the interposition of any-thing wliich tends to check the draft or to con tine it to anyone h)cality along the
Size: 1095px × 2283px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
