Abstract
A demountable solderless all-metal valve suitable for ultra-high vacuum applications is described. A gasketed stainless steel diaphragm transmits the motion. Valves of several sizes have been constructed. One modification is useful for providing a straight path for passage of a beam of particles or light between chambers which it may be necessary to evacuate separately. A pair of valves in a common block may be used to provide a convenient, accurate metering volume. A group of valves machined from a single block may form a complete manifold. The basic mechanism has also been employed for transmitting motion in a high vacuum system as for adjusting a slit.
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