Document dnxqDNyy075Mm82Xxxo6gJKD6
25--Hoisting Apparatus and Conveyors
Fic 25-32 --Failure to replace hinged cover or any other safeguards could lead to serious injury Al though this photograph is posed, it is a reconstruction of the facts of one lost-time accident One worker failed to replace this cover Another, taking a shortcut, missed his footing and stepped into the open con veyor instead of on to the adjacent grating The resulting injury to his right foot disabled him for three months
A bucket elevator carries fixed buckets m a vertical or inclined path The buckets discharge by gravity as they pass over the head sheave or drum
A cravity-discharce conveyor-elevator has fixed buckets and operates m vertical, in clined, and horizontal paths The buckets act as flights while carrying matenal along a trough m the horizontal plane to a point of gravity-discharge
A pivoted-bucket conveyor also operates m horizontal, inclined, and veitical paths The buckets remain in carrying position until they are tipped or inverted to discharge
Bucket conveyors should be totally enclosed m a housing to protect operating personnel
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No attempt should be made to take samples when the conveyor is m motion
The pivoted-bucket conveyor has tripping devices for emptying the buckets at desired locations These tripping devices frequently are movable so that the material can be dis tributed evenly m the storage bins If the control lever mechanism for shifting and lock ing the tnppers is arranged for remote contiol, workmen will not have to go on the conveyoiway to change the position of the tnppers
Foi the safety and convenience of repair men and operators, it is advisable to provide a permanent footwalk alongside a conveyor that hoists material and cames it over stokers or bins The footwalk should be well lit and