. Factory and industrial management. uction is to increasecapacity. Ten years ago a million-bushel elevator was consideredlarge; but the structures which have recently been erected a railwayterminals and at important harbours range from 1,500,000 to 3,000,-000 bushels storage capacity and some of them have facilities for load- i28 THE ENGINEERING MAGAZINE. ing at one time three steamships, each of 7,000 tons carrying great weight to be sustained by such structures and the progressmade in the erection of steel buildings has caused steel to be employedwith very satisfactory results
. Factory and industrial management. uction is to increasecapacity. Ten years ago a million-bushel elevator was consideredlarge; but the structures which have recently been erected a railwayterminals and at important harbours range from 1,500,000 to 3,000,-000 bushels storage capacity and some of them have facilities for load- i28 THE ENGINEERING MAGAZINE. ing at one time three steamships, each of 7,000 tons carrying great weight to be sustained by such structures and the progressmade in the erection of steel buildings has caused steel to be employedwith very satisfactory results in some of the elevators recently builton the Great Lakes. One of these elevators, reputed to be the largeststorage house in the world, having a total capacity of 3,100,000bushels, was erected by the Great Northern Railroad Company at itsterminals at West Superior, Wis., and is used for handling corn,wheat and oats. As it represents the latest ideas in elevator construc-tion, its principal features may be alluded to in this SYSTEM OF TANK-ELEVATOR ARRANGEMENT AND CONSTRUCTION, SHOWING OUTER STRUCTURE OF BRICK. The steel framework rests upon 280 columns of the same turn supported upon concrete pedestals and piling. The outsidewalls of the lower portion consists of brick resting on stone founda-tion. The storage compartments are rectangular bins, each 85 feetin height and varying from 6,300 bushels to 24,900 bushels bins are made of steel plates 5 feet in length and ranging from5/16 to 3/16 of an inch in thickness. The arrangement of the floorsis similar to that in the ordinary elevator, but in operation the cars THE OPERATION OF THE MODERN GRAIN ELEVATOR. 229 are hauled into the building in trains of nine each by a cable the grain passes from the cars into the hoppers it is taken byendless-belt carriers from the hoppers to the top of the elevator, whereit falls into the garners, thence into the scale hoppers, and thence tothe scales.
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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
