fire damper
21FD — aeronaut. abbr. Flight Director aeronaut. abbr. Frequency Diversity com. abbr. Frequency Diversity comp. abbr. File Directory comp. abbr. Floppy Disc comp. abbr. Full Duplex metal. abbr. Fire Damper telecom. abbr. Frequency Demodulator comp. abbr …
22VOLFD — metal. abbr. Volume Adjustable Fire Damper …
23Furnace — For other uses, see Furnace (disambiguation). Industrial Furnace from 1907 A furnace is a device used for heating. The name derives from Latin fornax, oven. In American English and Canadian English, the term furnace on its own is generally used… …
24Superheater — See superheating for the physics process. General arrangement of a superheater installation in a steam locomotive …
25One Canada Square — A view of One Canada Square, the second tallest building in the United Kingdom. Record height Tallest in the United …
26List of devices used by Doctor Doom — This article lists devices used by the Doctor Doom, a fictional supervillain of the Marvel Comics universe and enemy of the Fantastic Four. Over the course of his appearances, Doom has used over 100 devices, many of which he also invented.… …
27Albert Butz — Infobox Writer name = Albert Butz birthdate = 1849 birthplace = Switzerland deathdate = death year and age|1905|1849 deathplace = United States occupation = inventor and businessman nationality = Swiss AmericanAlbert Butz (1849–1905) Swiss born… …
28Robert Wornum — (1780 1852) was a piano maker working in London during the first half of the 19th century. He is best known for introducing small cottage and oblique uprights and an action considered to be the predecessor of the modern upright action [David… …
29Glossary of boiler terminology — Boilers for generating steam or hot water have been designed in countless different shapes, sizes and configurations. An extensive terminology has evolved to describe their common features. This glossary provides definitions for these terms.… …
30Hydropneumatic device — North American, European, and other languages refer to hydropneumatic devices such as a hydropneumatic accumulator or pulsation damper using very different words. In many cases this can cause a great deal of word usage confusion. This article… …
