. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ng the logs, they areneither as economical nor as convenient to use. A logging car which is used more than any other type andin practically all sections of the country is of skeleton con-struction and has a wooden frame. The one illustrated isof 30,000 lb. capacity, is 21 ft. long, and weighs only 7,000lb., or less than half as much as a regular flat car. Thebunks on which the logs rest and which are the equivalentof the body
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ng the logs, they areneither as economical nor as convenient to use. A logging car which is used more than any other type andin practically all sections of the country is of skeleton con-struction and has a wooden frame. The one illustrated isof 30,000 lb. capacity, is 21 ft. long, and weighs only 7,000lb., or less than half as much as a regular flat car. Thebunks on which the logs rest and which are the equivalentof the body bolsters in other cars are 8 ft. 6 in. long and thebunk centers are 11 ft. Cone-headed bolts are used at theends of the bunks to keep the logs from rolling off. Thecouplers may be of the simple link and pin type but auto-matic couplers are preferable for safety and other reasonsand, of course, must be used if the cars are ever hauled For heavy service, logging cars of all-steel constructionare coming into use. They are usually of from 60,000 lb. to80,000 lb. capacity. The one illustrated has four bunks andis provided with rails for a log loader. If log loaders of. Fig. 38—Logging Car, Wooden Frame on other railroads. Cars of the same general type are builtin capacities up to 80,000 lb. For hauling long logs, the center sills are cut in two atthe center and reinforced with straps so that the distancebetween the truck centers can be adjusted to suit the lengthof the logs. As the grades on logging roads are usually heavy andfrequently long the use of air brakes is strongly recom-mended even though the cars are not sent to other railroads.
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
