Lumber, its manufacture and distribution . travels,and also that logs can beassorted as to size, species,and quality if so storage capacity of from3 to 6 million feet, logscale, often is provided. An unloader of the port-able type, operated by steampower, which straddles therailroad track and is usedto unload log cars, to assortand pile logs and also toplace them on the elevatingdevice which carries theminto the mill, is shown inFig. 6. The non-portable typeis used both to unload carsand to deck the logs in pilesfrom 20 to 30 feet high in a semicircle around the machine, or else to p
Lumber, its manufacture and distribution . travels,and also that logs can beassorted as to size, species,and quality if so storage capacity of from3 to 6 million feet, logscale, often is provided. An unloader of the port-able type, operated by steampower, which straddles therailroad track and is usedto unload log cars, to assortand pile logs and also toplace them on the elevatingdevice which carries theminto the mill, is shown inFig. 6. The non-portable typeis used both to unload carsand to deck the logs in pilesfrom 20 to 30 feet high in a semicircle around the machine, or else to place the logs directly on thelog haul-up. The capacity of the storage space available to a machineof this character is approximately 500,000 feet, log scale. Locomotive cranes 1 are used at some plants which purchase logsthat are delivered at the mill by trunk-line railroads. These cranesare used not only to unload the logs from the cars and to deck them,but also to take the logs from the piles and place them on the jackerchain. 1 Fig. Fig. 6.—A Portable Log Unloader and Stackerfor Hardwood Operations. 16 LOG STORAGE WATER STORAGEStorage Areas. Log storage reservoirs may be ponds, either natural or artificial;pockets on small streams; or impounded areas on rivers, lakes, or tide-water, where a sheltered spot can be secured and enclosed with boomsticks. A storage space in the channel of a large stream or at anexposed point on a large body of water is less desirable than a pond,
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
