초록 ▼

Two bucket holder for crane buckets allows one bucket to be filled while the other is in use on the crane. Means are provided for automatically disconnecting a just-returned bucket from the crane cable and connecting the other bucket. Guide means for a returning bucket, and a universal bucket arm co

Two bucket holder for crane buckets allows one bucket to be filled while the other is in use on the crane. Means are provided for automatically disconnecting a just-returned bucket from the crane cable and connecting the other bucket. Guide means for a returning bucket, and a universal bucket arm connection places the bucket arm in contact with the disconnect-connect means.

대표청구항 ▼

Means for controlling connections between a crane cable and cement buckets comprising: each said bucket providing a universal connection approximately centrally of said bucket in plan view and adjacent the top of said bucket to an arm whose free end will project radially beyond the side edge of said

Means for controlling connections between a crane cable and cement buckets comprising: each said bucket providing a universal connection approximately centrally of said bucket in plan view and adjacent the top of said bucket to an arm whose free end will project radially beyond the side edge of said bucket; a pair of side by side location receptacles for said buckets; means for guiding the arm of a bucket which is in one of said receptacles and being lowered from a vertical attitude into an approximately horizontal attitude so that in azimuth said arm is directed substantially toward the universal connection of a bucket in the other location; means responsive to the arrival of such arm in an approximately horizontal attitude, attached to a crane cable, for disconnecting said cable from the lowered arm and attaching said cable to the arm of the other bucket.