What is the function of dogs in hatch hardware?

What is the function of dogs in hatch hardware?

• A. They secure the hatch lid to the frame
• B. They seal the gasket
• C. They provide the knife edge
• D. They are handles

Answer: (A)

Dogs are locking clamps used on hatch covers. They grip the hatch lid and pull it tight against the frame, applying even pressure along the edge to keep the hatch securely closed and watertight. The seal is accomplished by the gasket, not by the dogs themselves, and the knife edge refers to the edge that the gasket seals against, not the dogs. While a dog assembly may have a handle for operation, the primary function is to secure the lid, not to serve as a handle.

Dogs are locking clamps used on hatch covers. They grip the hatch lid and pull it tight against the frame, applying even pressure along the edge to keep the hatch securely closed and watertight. The seal is accomplished by the gasket, not by the dogs themselves, and the knife edge refers to the edge that the gasket seals against, not the dogs. While a dog assembly may have a handle for operation, the primary function is to secure the lid, not to serve as a handle.