Tainter Valve Bottom Seal.pdf

This is an engineering drawing for a bottom seal gate used in a dam construction project. The document is labeled "CONTRACT 4" and appears to be a technical specification sheet with detailed dimensional measurements and assembly requirements.

The drawing shows a rectangular gate structure measuring 8 feet 0 inches in width with specific mechanical components including a 4-ply nylon duck reinforcement, drilled holes at assembly points with steel sleeves, and a bottom seal keeper mechanism. Material specifications are indicated with notes requiring fabric-reinforced roller natural rubber seals, and polyurethane reinforcement in both the top and bottom sections. The drawing includes detailed callouts for hole drilling specifications, seal keeper templates, and assembly instructions. Notes reference standard specifications (appearing to include tensile strength, hardness, and water absorption parameters, though specific values are partially illegible in the scan). The document is stamped as "SCANNED" and includes a reference number "203D1007" in the upper right corner, with related document numbers "203D1007" and "203D1008" noted at the bottom of the sheet.