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In the 1920s, company engineers developed the coated welding rod which they used in manufacturing until 1965, as well as the world's first fully automated automobile frame factory, with the capability of making a frame every eight seconds, until 1958, the first arc-welded, high-pressure vessel used to refine oil, which the company produced ...
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For gas appliances, a flame supervision device (FSD) – alternative name: flame failure device (FFD) – is a general term for any device designed to stop flammable gas going to the burner of a gas appliance if the flame is extinguished. This is to prevent a dangerous buildup of gas within the appliance, its chimney or the room. [1]
The inlet pressure gauge will indicate this pressure. The gas then passes through the normally open pressure control valve orifice and the downstream pressure rises until the valve actuating diaphragm is deflected sufficiently to close the valve, preventing any more gas from entering the low pressure side until the pressure drops again.
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In the latest report, the roles weren’t in the top 25 at all. LinkedIn also took note of the gender makeup of the 25 fastest-growing job titles. Of the top 10, security guards (67%), outside ...
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