. Scientific American Volume 25 Number 21 (November 1871). THE HUMBOLDT MONUMEHr AT ALLLEGHENY CITY PA. ©1871 SCIENTIFIC AMERICAN, INC. November 18,1871.! JPrbutific Smtmcan. 323 WILLIAMS IMPROVED AXLE BOX FOR RAILWAY CARS. The inventor of this improvement maintains that boxes,made to accommodate themselves to the varying positions ofjournals of railway axles and properly lubricated, wouldpractically prevent 1 eating when running; at high has, therefore, constructed the box illustrated in the an-nexed engraving, with a view to bring about this accommo-dation of parts. In the engravin
. Scientific American Volume 25 Number 21 (November 1871). THE HUMBOLDT MONUMEHr AT ALLLEGHENY CITY PA. ©1871 SCIENTIFIC AMERICAN, INC. November 18,1871.! JPrbutific Smtmcan. 323 WILLIAMS IMPROVED AXLE BOX FOR RAILWAY CARS. The inventor of this improvement maintains that boxes,made to accommodate themselves to the varying positions ofjournals of railway axles and properly lubricated, wouldpractically prevent 1 eating when running; at high has, therefore, constructed the box illustrated in the an-nexed engraving, with a view to bring about this accommo-dation of parts. In the engraving, A represents the housing, B the axle, andC the box. Between the box, C, and the cap, E, is • placed a plate, plate has on its under side a cavity which is of the formof a portion of a sphere, into which fits a convexity of cor-responding form on the top of the box. This allows the boxto move with the axle in all the horizontal movements of als which were to protect the Government records, were onlyaffixed to a single brick. When, therefore, the walls ex-panded with the heat, the sturdy doors fell out of their ownweight, each hinge carrying with it the single brick to whichit held, while the remainder of the wall was as firm as pos-sible. Of course all the record i were hopelessly ruined. This vault was fire and burglar proof. Experts are not theonly persons who can judge of the value of a vault whosedoors had such a feeble hold. The building is one of a large number built on the sameplan, and the condition of the lower vault suggests greatweakness in those erected in other cities. It is probable thatthe Government will order an inspection of all existing vaults. It is ascertained that no stone ever used in the businesspart of the city is worth a farthing in such a fire. Brick isthe only thing that comes out whole, and is ready to try itagain. The future Chicago will be a city of bricks. .»» » AN EXPLOSION ON THE
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectiron, booksubjectnitr
