An instrument for measuring external or internal dimensions, having two hinged legs resembling a pair of compasses and in-turned or out-turned points
A motor-vehicle or bicycle brake consisting of two or more hinged components
A type of rim-brake, chiefly used on bicycles, which consists of a pair of arms straddling the wheel and pivoting at the top, and is applied by an inward movement of the arms till the brake pads grip the wheel rim from either side.
A linear measuring instrument consisting of a scaled rule with a projecting arm at one end, to which is attached a sliding vernier with a projecting arm that forms a jaw with the other projecting arm
A measuring instrument having one linear component sliding along another, with two parallel jaws and a vernier scale
A metal support for a person’s leg