. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . cks, or conveysmaterials from storage piles to the workmen. Because itoperates in a minimum of space it is useful in conservingvaluable storage room and avoiding confusion on con-gested construction operations. In large concrete opera-lions lines of gravity are used economically for the hand-ling of form lumber from the cars to the piles or to thesaws. The use of occasional power boosters makes itpossible to use the gravity c
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . cks, or conveysmaterials from storage piles to the workmen. Because itoperates in a minimum of space it is useful in conservingvaluable storage room and avoiding confusion on con-gested construction operations. In large concrete opera-lions lines of gravity are used economically for the hand-ling of form lumber from the cars to the piles or to thesaws. The use of occasional power boosters makes itpossible to use the gravity conveyor over wider areas. The rollers should be of steel to withstand the constantabrasion of the rough objects handled. They should be GRAVITY ROLLER CONVEYORS 383 from 12 in. to 18 in. in length and, because of the smallerobjects to be handled, such as brick and tile, they shouldbe closely spaced, from 3 in. to 4 in. Low side-guards orflanges on the rollers are advisable to insure satisfactorytravel of the more irregular packages. Ready portabilityIS generally an essential for this service; therefore the endconnections and supports should be so designed as to be. Roller Gravity Convenient in Construction quickly set up, and the sections should be as light as is con-sistent with durability. Because the conveyor is used outof doors and constantly handles packages that throw offconsiderable sand and dust, especial attention must be paidto the oiling and care of bearings. Fairly regular hollowtile and brick require grades of from 4 per cent to 8 peicent. Canning and PackingBaskets of Fruit—Cartons—Boxes—Tubs In canning and preserving plants the gravity roller con-veyors speed up the handling of perishable products andmake the most of a short working season. Baskets, boxesand tubs of fruit and vegetables are brought from the trucksor receiving platforms on such conveyors to temporary stor-age or to the packers and washers. Likewise, empty boxesand box-shooks are conveyed fro
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
