NORSHIPCO Y-2496-1 Revision C Sheets 1 to 2 Hopper Door- Frames.pdf

This is a technical drawing document for hopper doors and frames used in dredge equipment. The drawings depict detailed specifications for the Dredge Yaquina's hopper door and frame assembly, including multiple detailed views and cross-sections showing dimensions, materials, and assembly requirements.

The document contains comprehensive engineering specifications for hopper door castings, frame assemblies, retainer bars, and gasket components. Key materials specified include cast steel, stainless steel, and machined surfaces with specific tolerances. The drawings show full-size and half-size details of various components including hopper door castings (Detail 1-A and 4-B), frame assemblies (Detail 14-A), retainer bars and gaskets (Details 10-F and 9-B), and hinge pins (Detail 5-E). Specifications reference welding procedures, surface finishes, and assembly dimensions with particular attention to clearances and wear surfaces. The document is associated with Horshpod Shipbuilding & Drydock Corporation as the builder and design agent, with the U.S. Army Engineers District in Portland, Oregon overseeing the project. This appears to be technical design documentation prepared to support manufacturing and construction of hopper door assemblies for the Dredge Yaquina vessel.