Engineering and Contracting . USE THE Blaw System for centering yourconcrete structures. Write fur BLAW COLLAPSIBLESTEEL CENTERING CO. General Offices: Westinghouse Building PITTSBURQ, PA. run . Of kite; 1005 Chimber of Cornmerce i:w York Office: i20 Park Row Bldg. npHERE are four bottom doors on Dump Wagon Box, two hingedto the outer sides of the box and twoliinged to a beam that runs lengthwise ofthe box, directly over the reach of thewagon gear. By this arrangement theTroy Dump Box fits any gear. It will. be noted that the same simple mechanismis used for raising t
Engineering and Contracting . USE THE Blaw System for centering yourconcrete structures. Write fur BLAW COLLAPSIBLESTEEL CENTERING CO. General Offices: Westinghouse Building PITTSBURQ, PA. run . Of kite; 1005 Chimber of Cornmerce i:w York Office: i20 Park Row Bldg. npHERE are four bottom doors on Dump Wagon Box, two hingedto the outer sides of the box and twoliinged to a beam that runs lengthwise ofthe box, directly over the reach of thewagon gear. By this arrangement theTroy Dump Box fits any gear. It will. be noted that the same simple mechanismis used for raising these bottom doors-as isused on the standard Troy Dump other door raising mechanism is sosimple and strong. Send for Bulletin Ewhich describes this mechanism and gi\esfurther facts about Troy Dump Boxes. The Troy Wagon Works Co. 295 South Walnut Street TROY, OHIO IN WRITING to our Advertisers for CATALOGS or PRICES please mention ENGINEERING-CONTRACTING. 34 ENGINEERING-CONTRACTING \(.l. XXIX. Xo. 24. The Dustless Pavement-Petrolith With the advent of automobiles, roadand street designers have been confrontedby a grave problem — the dust sprinkling and oiling has servedto palliate the trouble, but can never curethe evil. An entirely new design of road-way is necessary. Petrolithic Pavementis designed to do away with the dustnuisance, and, incidentally, it has turnedout to be the cheapest durable pavementever devised. The process of makingPetrolith consists in shaping the roadway,and in plowing the ea
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
