. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. 172 AGRICULTURAL ENGINEERING Rock Crushers. One of the essential machines in con- nection with the building of a stone road is the rock crusher for reducing stones to fragments of the proper size. Usually these crushers are located at the quarry, and the stone is shipped ready for application to the Fij 93. Stone crushing plant. A three-wheeled steam roller and a dump wagon are shown in the foregroun
. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. 172 AGRICULTURAL ENGINEERING Rock Crushers. One of the essential machines in con- nection with the building of a stone road is the rock crusher for reducing stones to fragments of the proper size. Usually these crushers are located at the quarry, and the stone is shipped ready for application to the Fij 93. Stone crushing plant. A three-wheeled steam roller and a dump wagon are shown in the foreground. Other Machinery. The equipment necessary for build- ing stone roads includes several other machines. Among these may be mentioned screens for grading the stone, dump wagons for hauling and spreading the stone, and sprinklers for applying water or binding material in the form of a liquid. When old roads are to be repaired, plows or scari- fiers, Yvmich are heavy tools with cultivator-shaped teeth for breaking up the surface, are Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Davidson, Jay Brownlee, 1880-1957. St. Paul, Minn. , Webb Pub. Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1919
