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
Hinge teeth interlocking teeth on either side of the umbones, as is the case in the ark clams (Arcidae), the bitterweets (Glycymerididae), and the nut clams (Nuculidae). The "dysodont" hinge shows a strong ligament along the hinge line, with weak teeth near the umbones, as in the marine mussels (Mytilidae). The "isodont" hinge has lateral tubercles and sockets on either side of a thick ligament which is referred to as a resilium. This arrangement is typical of the oysters (Ostreidae), scallops (Pectinidae), thorny oysters (Spondylidae), and kittens paws (Plicatulidae). The "crurae" hinge has lamellar ridges on or near the hinge plate, and