safety valve

Definitions

  • WordNet 3.6
    • n safety valve a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
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Webster's Revised Unabridged Dictionary
    • Safety valve a valve which is held shut by a spring or weight and opens automatically to permit the escape of steam, or confined gas, water, etc., from a boiler, or other vessel, when the pressure becomes too great for safety; also, sometimes, a similar valve opening inward to admit air to a vessel in which the pressure is less than that of the atmosphere, to prevent collapse.
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Usage

In literature:

Unhappily for him he found this safety-valve in a series of suppressed but distinctly audible sniffs.
"Vice Versa" by F. Anstey
Aunt Myra says it's my safety-valve.
"A Little Country Girl" by Susan Coolidge
Shall we say a safety valve?
"Woman on Her Own, False Gods & The Red Robe" by Eugène Brieux
All keyed up for war and no place to go, and this was a kind of safety valve.
"The Pagan Madonna" by Harold MacGrath
We'll lay in a few sandwiches as a safety-valve.
"Uncle Sam's Boys in the Ranks" by H. Irving Hancock
Vesuvius was our safety-valve.
"Personal Recollections, from Early Life to Old Age, of Mary Somerville" by Mary Somerville
Doctor said it acted like a safety-valve, and its bleeding kept off fever.
"The Kopje Garrison" by George Manville Fenn
The safety valve is located on top of the steam dome.
"The 'Pioneer': Light Passenger Locomotive of 1851" by John H. White
The play is his safety-valve.
"The Battle with the Slum" by Jacob A. Riis
You'll have to when you're alone, just as a safety-valve.
"The End of the Rainbow" by Marian Keith
And immigration to America has continued the safety valve of the social order.
"Rosinante to the Road Again" by John Dos Passos
It is impossible to over-estimate the value of this safety-valve.
"The Soul of a People" by H. Fielding
But it is the greatest relaxation possible and a kind of safety valve.
"Liége on the Line of March" by Glenna Lindsley Bigelow
A safety-valve was found.
"The Day of Sir John Macdonald" by Joseph Pope
To one who knows Cook all this is merely the safety-valve lifting.
"An Ocean Tramp" by William McFee
This seems to be our safety-valve.
"Uncle Daniel's Story Of "Tom" Anderson And Twenty Great Battles" by John McElroy
It needed just this play to act as a safety valve.
"A Boy Knight" by Martin J. (Martin Jerome) Scott
The safety-valve was shut, with the landlord and the policeman holding it down.
"The Children of the Poor" by Jacob A. Riis
I'm a real safety valve to Cassandra.
"Lady Cassandra" by Mrs George de Horne Vaizey
You've been my safety-valve and my prop.
"A Question of Marriage" by Mrs. George de Horne Vaizey
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In news:

Safety systems integrator Hima-Sella creates safety solutions for all 20 valve stations along the length of SABIC UK Petrochemicals' 250km Wilton-Grangemouth Ethylene Pipeline (WGEP).
Send " Safety valve opens on a gas line at South Prairie Street" to a friend.
Redskins searching for safety valve .
Dion Sims says he's ready to carry Michigan State's offense, while being QB Andrew Maxwell's safety valve .
"I feel like I'm Maxwell's safety valve ," said Sims, who cut his body fat from 18 percent to 13 percent this offseason.
Governor's crime bill ' safety valve ' draws Tarr's fire.
Series 820, Series 810 Safety Valve s.
A VOTING MACHINE LEVER CAN ALSO BE A SAFETY VALVE .
Send "Safety valve opens on a gas line at South Prairie Street" to a friend.
Redskins searching for safety valve.
Dion Sims says he's ready to carry Michigan State's offense, while being QB Andrew Maxwell's safety valve.
Governor's crime bill 'safety valve' draws Tarr's fire.
Series 820, Series 810 Safety Valves.
Energy bills should have safety valve.
A VOTING MACHINE LEVER CAN ALSO BE A SAFETY VALVE.
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In science:

The presence of the charge function serves as a safety valve, which absorbs much of the fine tuning, necessary in the uncharged case.
Static charged perfect fluid spheres in general relativity
The study and design of the global cooling system for ECAL including the power source, fluid lines, valves, sensors and safety systems allows a first cost estimate and the various options of the whole installation.
Next Generation CALICE Electromagnetic Calorimeter
The finite lifetime of UDs, in turn is due to the “safety valve” mechanism operating at the magnetic cusp above the convecting columns, in a manner somewhat akin to the suggestion of Choudhuri (1986).
Structures in compressible magnetoconvection and the nature of umbral dots
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