… has a drive shaft connected by a flexible coupling to a synchronous motor which drives it at constant speed. … wheels. When the instrument is connected to the mains, the synchronous motor turns the tone wheels at speeds which vary …
… water. Used as an oxidising agent in vat dyes; in organic synthesis; for pickling meat; in photography; as a … preparing lead salts and as an oxidising agent in organic synthesis. Apart from the exclusions mentioned previously, …
… pearls, of precious or semi-precious stones (natural, synthetic or reconstructed), even if such parts constitute … includes leather coated with a thin layer of plastics or synthetic rubber which is invisible to the naked eye …
… generally made of hard twisted undischarged silk yarn or of synthetic filament yarn. (3) Filtering or straining cloth … or of other animal hair, and certain unbleached fabrics of synthetic fibres (e.g., nylon) thinner than the foregoing …
… in the purification of mineral oils, for the preparation of synthetic resins, as a solvent for cellulose nitrate and … with water. An intermediate product and solvent for synthetic resins. Used in preparations for removing paint …
