Attachment 0002 - Drawings 64N552r0.pdf

This is a technical drawing/schematic document for upper and lower gate operating machinery, including sector, pinion, and miscellaneous parts. The drawing was prepared for the Tennessee Valley Authority (TVA), a federal agency, and appears to be historical engineering documentation related to hydroelectric or water control gate infrastructure.

The document contains detailed mechanical specifications and cross-sectional views of various gate operating components, including roller bracket assemblies, pinion mechanisms, and development of design drawings. Multiple sections (labeled A-A, B-B, C-C, and C-D) provide dimensional specifications and assembly details. The drawing includes notes regarding material specifications, manufacturing tolerances, and assembly requirements for the mechanical systems. The document is stamped as a historical record and includes revision markings and approval signatures from TVA engineering personnel. This appears to be a reference drawing for manufacturing, maintenance, or replacement of gate operating machinery components at a TVA facility, likely a dam or lock structure.