Some articles on damper flapper, damper:
... The damper flapper could control a coal fire furnace by operating the furnace damper from a thermostat ... urged Butz to patent, manufacture, and sell the damper flapper ...
Famous quotes containing the word damper:
“The shy man does have some slight revenge upon society for the torture it inflicts upon him. He is able, to a certain extent, to communicate his misery. He frightens other people as much as they frighten him. He acts like a damper upon the whole room, and the most jovial spirits become, in his presence, depressed and nervous.”
—Jerome K. Jerome (18591927)