. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . Quick Service Promoted by Elevator are to be loaded and unloaded by hand, their speed shouldbe very low, preferably not over 40 ft. per min. Even with 344 CONVEYORS AND ELEVATORS FOR PACKED MATERIAL speeds as low as 30 ft. per min. the trays may be spacedclosely enough to give a very large capacity. Obviouslythe frames of the machines should be so carefully designedand braced thait there can be no chance of
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . Quick Service Promoted by Elevator are to be loaded and unloaded by hand, their speed shouldbe very low, preferably not over 40 ft. per min. Even with 344 CONVEYORS AND ELEVATORS FOR PACKED MATERIAL speeds as low as 30 ft. per min. the trays may be spacedclosely enough to give a very large capacity. Obviouslythe frames of the machines should be so carefully designedand braced thait there can be no chance of of the very fragile nature of the packages beinghandled, the adjustment of the various parts should be givenregular attention, to insure the smoothest action at all designed trays are sometimes used in which autOmatic unloading is feasible. Wrapping and Packing to Storage—Boosting Cartons—Boxes The use of the suspended tray elevator as a booster, toprovide additional head for a gravity conveyor, makes itfeasible to handle many packages and containers which ing fingers,results. A cushion bumper is often used with excellent. The Elevator Acts as a Booster could not otherwise be safely handled by this simple, con-tinuous method. The pallets with their load are lifted gentlyfrom the gravity conveyor at the bottom, carried smooth-ly over the top, and removed by the fingers of the dischargestation to gravity lines above. Since the pallet is carriedin a level position its contents are not disarranged and itis possible to handle the most fragile packages safely. Theillustration shows the simple construction and small spacerequired by this vertical elevator. Because of these ad-vantages, these machines are often placed in old elevatorshafts, or are even attached to the outside walls of manu-facturing and storage buildings. As a booster the elevator is usually provided with onlyone loadmg and one discharge station, the empty pallets orcontainers being returned by a
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
