F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
F03G1/00—Spring motors
F03G1/02—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil
F03G1/022—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil using spiral springs
Cassette d'emmagasinage et de distribution de fil ou ruban sous tension préréglée, utilisable notamment sur une machine pour réaliser des pièces creuses par enroulement filamentaire