The term "pommel joint" refers to a type of joint commonly found in medieval weapons such as swords and daggers. The spelling of this word can be explained using the IPA phonetic transcription. "Pommel" is pronounced as /ˈpɒməl/, which is a combination of the consonant sound /p/, the vowel sound /ɒ/ and the consonant sound /m/. "Joint" is pronounced as /dʒɔɪnt/, which includes the consonant sound /dʒ/, the vowel sound /ɔɪ/, and the consonant sound /nt/. Together, "pommel joint" is pronounced as /ˈpɒməl dʒɔɪnt/.
A pommel joint is a type of joint commonly found in mechanical devices or tools that allows for rotational movement between two interconnected members. It consists of a shaft or rod-like component with a rounded or knob-like end, known as the pommel, which fits into a corresponding cavity or socket on the other member. The pommel is typically retained within the socket by a hinge pin or a set of screws, allowing for controlled and restricted movement.
The main function of a pommel joint is to provide a stable and secure connection between the two members, while permitting rotational motion around the axis of the joint. This type of joint is frequently used in various applications, such as in hand tools, mechanical linkages, or even in horse saddles. It allows the connected members to pivot or swivel, facilitating a wide range of movements or adjustment capabilities.
Pommel joints are often designed to be sturdy and durable, capable of withstanding substantial forces and mechanical stresses. They may be made from materials such as metal or plastic, depending on the intended application and the required strength. Accurate alignment and clearances are crucial to ensure smooth rotation and reliable operation of the joint.
Overall, the pommel joint serves as an essential mechanical connection that enables controlled rotational movement between two interconnected members while maintaining stability and support.
Condyloid joint.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "pommel joint" comes from the combination of two different etymological sources.
1. "Pommel" derives from the Old French word "pomel", which means "rounded knob" or "a ball-like shape". This Old French term traces its roots back to the Latin word "pomum", which stands for "fruit" or "apple". Over time, "pomel" began to be used specifically to describe the rounded knob at the top of a sword hilt or the front knob of a saddle. Thus, "pommel" came to refer to any rounded protuberance or knob.
2. "Joint", on the other hand, comes from the Old French word "joint", which emerged from the Latin word "iunctus", meaning "joined" or "connected".