. American engineer and railroad journal . tings. Tour committee believes from a general standpoint that therecommended design and specifications as included in the eighteensections and Plate 1 can be adopted with satisfactory results, andprovide for the greatest strength and factor of safety to resist thes due to ordinary wear and tear, curvature, lateral thrust,braking action and derailment. late a building. They are made by the Royal Ventilator andManufacturing Company of Philadelphia. VENTILATION. The accompanying illustration shows the construction of theRoyal ventilator which has proved
. American engineer and railroad journal . tings. Tour committee believes from a general standpoint that therecommended design and specifications as included in the eighteensections and Plate 1 can be adopted with satisfactory results, andprovide for the greatest strength and factor of safety to resist thes due to ordinary wear and tear, curvature, lateral thrust,braking action and derailment. late a building. They are made by the Royal Ventilator andManufacturing Company of Philadelphia. VENTILATION. The accompanying illustration shows the construction of theRoyal ventilator which has proved very successful in venti-lating buildings, power houses, train sheds and construction is very substantial and the design is suchthat rain and downward currents of air are deflected withoutmaterially interfering with the free egress of air from the in-terior and it is always effective when the wind blows and willnot choke in a calm. The diameter of the upper cone isenough greater than thai of the lower one to deflect rain and. COB, b f the necl ol the vi ntilator. ] tie io m ■i- the upward current ol air from the body of Hie ven-tilator and iii io doing offers only a vei In thelarger rentllators pat< ai which mal e a irerj rigid ad i to the emulating capacity. No matter which wiMows an exhaust curr< n du< ed from 11 Because of the largi■tnmber of these rentlla renti- Heavy Tonnage.—The average tonnage carried per mile ofroad on the Pittsburgh & Lake Erie Railroad last year was121,607 tons, or almost twenty times greater than the averagetonnage per mile carried on all the railroads of this countryfor a corresponding period. Compression in Steam Cylinders.—The following is takenfrom a review in The Engineering Magazine of an article byDr. Herbert Klemperer in the Zeitschrift tics Vereines Deutsch-er Tngenieure, which reports and discusses some very carefultests made at the technical high school in Dresden. Dr. Klem-perer states: The condition under w
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
