Lumber, its manufacture and distribution . BER DOCKS 139 run at right angles to the chains A, which bring lumber from the mill tothe assorter. Each set of rollers is mounted on a single frame with apneumatic raising device. When at rest, the tops of the rollers arebelow the line of the transfer chains. Each set of rollers ends at astorage point or station where the lumber is deposited, ready to beloaded on trucks and hauled directly to the ship side. There also is a storage pocket at the end of the transfer chainswhere all lumber is deposited which is not sent along one of the linesof rollers.
Lumber, its manufacture and distribution . BER DOCKS 139 run at right angles to the chains A, which bring lumber from the mill tothe assorter. Each set of rollers is mounted on a single frame with apneumatic raising device. When at rest, the tops of the rollers arebelow the line of the transfer chains. Each set of rollers ends at astorage point or station where the lumber is deposited, ready to beloaded on trucks and hauled directly to the ship side. There also is a storage pocket at the end of the transfer chainswhere all lumber is deposited which is not sent along one of the linesof rollers. In the diagram shown, the boards which are dropped atstation 1 are carried to the front of the resaw, and after being re-manu-factured again pass over the assorter. The operator, who controls the pneumatic raising device, elevatesthe proper set of rollers and diverts the lumber to the proper station. TIMBER DOCKS Mills which manufacture timbers in large quantity have a timber-loading dock, Fig. 104, which furnishes the needed storage and. Fig. 104.—A Timber Dock at a Southern Sawmill Plant. loading space. The dock usually is wide enough to hold from one-half to one carload of timbers. A line of dead or live rollers,which parallel the top of the timber dock, is a continuation of theline of live rollers behind the head-saw. Timbers are thrown fromthe rollers upon the greased skids of the dock by workmen who usecant-hooks or peavies. In loading cars, the timbers are shoved alongthe skids, by means of peavies, until they reach the edge of the dock 140 LUMBER HANDLING AND TRANSFER EQUIPMENT when they are dropped upon the car. A railroad track on which carsmay be spotted for loading is located on one side of the dock. TRANSPORTATION ABOUT THE PLANT The movement of lumber from one part of the plant to anotherinvolves the daily handling of many tons weight. The amount of lumberhandling varies with the plant management and the methods of season-ing and shipping. Green lumber is carri
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
