back draft

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back draft

[′bak ‚draft]
(metallurgy)
A reversed taper given to a casting model or pattern to prevent its withdrawal from the mold.
References in periodicals archive ?
Sources included the backdraft damper, seams, and penetrations in the housings.
There immense a backdraft on your e "I didn't know if there was going to be a second blast.
An Imperial Systems High Efficiency Cyclone, three Imperial Systems Heavy Duty Airlocks, two Imperial Backdraft Dampers and all duct work and install were specified.
A New spring-loaded backdraft dampers ($9 to $30, depending on the size) should solve the problem.
Lovisco says a backdraft effect occurred in the oxygen-starved environment of the tunnel, with the pressure blowing out the southeast corner of the building.
The 55 standards provide guidance on determining volatile organic chemicals in the atmosphere, inspecting water systems for legionellae, measuring asbestos concentration by TEM, and assessing backdraft from vented combustion appliances.
Following in the paw prints of Lassie, Benji and their four-legged kind, Firehouse Dog imagines a magical bond between a boy and a gung-ho pooch, throwing elements of the explosive Backdraft into the mix.
Rome -- A backdraft from the Prodi government's attempts earlier this year to extend the full privileges of marriage to co-habiting, including homosexual, couples continues to flare up in various forms.
Autodesk has also debuted Autodesk Backdraft Conform 2007 software, a solution for media management, background input/output and conform.
PCD tips are now available for both Backdraft and XPET inserts.
The breeze was blowing in our favor, but the hollow behind us produced an occasional backdraft.
Wilson caught wind of the backdraft with call-center contracts from major corporate clients.