A sprinkler ... a fire. A sprinkler system employing automatic sprinklers attached to a piping system containing air or nitrogen under pressure, the release of which (from the open sprinklers) permits ...
Grinnell 'Duraspeed' soldered fire sprinkler head, type 'B', made by Mather & Platt, Manchester, 1933-34. Part of sprinkler collection showing the development of fire sprinkler heads from 1885 when ...
A North County business is helping homeowners take preventative measures against wildfires with a rooftop sprinkler system, ...
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