| 摘要 |
<p>Glassworking machine, esp. for the manufacture of ampoules, in which the parts traverse several working positions, where they are shaped by means of gas burners; the air, oxygen and/or gas feeds to at least a portion of the burners, or the duration of their action on the parts, is regulated by components, such as electric valves, which are controlled by a measuring devices associated with one of the working stations and which depend upon the temperature of the parts. Instead of regulating the inlet of air, oxygeb or gas the duration of the action of the burner, or the distance separating it from the part, can be regulated; in the case of overheating, the burner is prematurely withdrawn, by tilting, or in another manner, from the heated emplacement. The head radiated by the hot parts is measured by means of a photoelectric element by the intermediary of an amplifier; the voltages produced regulate the inlet of the gas or the duration of the action of the burners.</p> |
