… apparatus; industrial reservoirs, tanks, etc.; solder in sticks, wire, etc.; ornamental articles and … (1) Tin‑lead alloys used, for example, as tin base soft solders; in pewter‑ware; in toy manufacture; for certain …
… Certain diascopes (overhead projectors) have a large object field for the projection of written or printed texts on … source, a diffusing screen or a condensing lens, a negative holder, one or more objectives with a focussing device …
… of a combination of a radiator through which hot or cold water is circulated and of ejector nozzles through … which mix, under the control of a room thermostat, hot and cold air supplied under high pressure and which consist …
… (lighting, industrial heating, feeding gas engines, welding or cutting metals, chemical synthesis, etc.). The … of the water and the incomplete combustion of the fuel yield carbon monoxide and hydrogen. The resultant mixture of …
… applications such as furniture, interior decoration and in building. Medium density fibreboard of a density exceeding … boards are used mainly for thermal or sound insulation in building. Special types of insulating board are used as …
… of the associated magnets; this causes variations in the fields which in turn set up weak current changes in the … magnet, its vibrations producing variations in the magnetic field set up in a coil wound around the magnet. The …
