roof ventilator

It is even worse in wet weather, when the roof ventilators and the windows may not be opened.

The boys had the roof ventilator of Headquarters open, so they were getting the full benefit of the playing.

The objective lens of the periscope is concealed in a roof ventilator.

Roof ventilators were generally of the torpedo type.

There is a patterned shingle design around the oval roof ventilator in the gable wall.

All engines received a cab roof ventilator.

It has a gable roof with a smaller gable roofed ventilator.

Inside Headquarters Pete closed the roof ventilator.

The strange pink powder from the truck's compartment was replacing the material that the truck had siphoned through the roof ventilator.

(c) roof ventilators fixed, gangways, end steps, end commode and ascending handles fixed.

At this time, Colt designed the Sloping Roof ventilator, which lay along the roof slope, reducing installation and maintenance costs.

Moreover, although the design of the Dymaxion House was unusual, it was not influential: neither its roof ventilator nor its rotating closets were ever replicated, and whereas Fuller guessed correctly that lightweight aircraft materials could be used in house construction, he didn't anticipate aluminum siding.

A guard tower and a catwalk from Hill Tower was added to the roof of the Industries Building in June 1936 and the building was made secure with bars from old cells to bar the windows and grill the roof ventilators and to prevent inmates from escaping from the roof.