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Victor Nielsen
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Control Of Steam Boilers And Waste-Gas Boilers
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Abstract
1416. Nielsen, V. Jan. 18. Vacuum-destroying devices. - A valve D, loaded by an adjustable spring, is fitted in a casing which is attached at L to the main steam pipe of a boiler. When the fires are drawn, and the steam within the boiler condenses, the valve opens to admit air.
GB190201416D1902-01-181902-01-18Apparatus for Preventing Vacuum in Boilers
ExpiredGB190201416A
(en)