OPENTECHNICAL PUBLICATION
OT-2026-000000096

Level cut clamshell bucket assembly

Published: 2026-09-15T19:02:29.107759Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000096
Categories: Lifting, Positioning & Manipulation > Hoists and Cranes

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ABSTRACT

A clamshell bucket assembly including first and second pivotally connected
steel bucket halves rotating between open and closed positions and including
sediment retention bars secured between the overlapping sides define a scoop
for permitting outflow of water while retaining a volume of a dredged
material. Weld rivets provide reinforced securing of the side and bottom steel
portions of each bucket half and extend a thickness of the bucket halves to
prevent fracturing at the welded interface. Upper and lower sheave assemblies
provide increased durability and wear resistance during repetitive opening and
closing of the mechanical bucket halves. The sheaves each include a central
pin supporting hub collar formed from a plurality of progressively inwardly
stepped and stacked disc shaped plates, these being initially sectioned from a
hardened steel sheet and welded to form the hub at the highest zone or area of
stress exerted upon the sheave during operation of the bucket.

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OpenTechnical publication OT-2026-000000096
Published 2026-09-15T19:02:29.107759Z
https://opentechnical.org/p/OT-2026-000000096