Pintle Pintle A pintle is a pin or bolt, usually inserted into a gudgeon, which is used as part of a pivot or hinge. Other applications include pintle and lunette ring for towing, and pintle pins securing casters in furniture. Pintle/gudgeon sets have many applications, for example: in sailing to hold the rudder onto the boat; in transportation a pincer-type device clamps through a lunette ring on the tongue of a trailer; in controllable solid rocket motors a plug moves into and out of the motor throat to control thrust. In electrical cubicle manufacture, a pintle hinge is a hinge with
Natal hinge-back tortoise Natal hinge-back tortoise The Natal hinge-back tortoise ("Kinixys natalensis"), also known as Natal hinge-backed tortoise or Natal hinged tortoise, is a species of tortoise in the family Testudinidae which is restricted to eastern southern Africa to a relatively small area around the borders of Mozambique, South Africa, and Swaziland. The Natal hinge-back tortoise is one of the smallest of the hinged tortoises. It has an elongated carapace up to in length which is slightly domed with a flat dorsal surface, although averaging between in length. Its hinge, on the underside of its shell, is also poorly developed compared to its