What is an air shaft used for?
Air Shafts, also commonly known as Air Bars or Air Mandrels, are used in the manufacturing processes for fitting into a core onto which materials such as paper, card and plastic film are wound.
What is an air shaft on a building?
airshaft (plural airshafts) (architecture) A vertical (or near vertical) opening (shaft) running from a courtyard to the sky, thus allowing air to circulate to high-rise apartments or offices.
What are ventilation shafts made of?
Quote from the video:
Quote from Youtube video: The floor plan of a building with an air shaft is often described as a square doughnut shape alternatively an air shaft may be formed between two adjacent buildings windows on the interior.
What are air Shafts in tenements?
That would be the air shaft—the slender opening between tenements that developers built to satisfy an 1879 requirement mandating a window facing outdoors in every room. These shafts did provide a bit of air and light.
What does an air shaft look like?
In architecture, an airshaft is a small, vertical space within a tall building which permits ventilation of the building’s interior spaces to the outside. The floor plan of a building with an airshaft is often described as a “square donut” shape. Alternatively, an airshaft may be formed between two adjacent buildings.
Why do pyramids have air shafts?
One of the most mysterious features of the Great Pyramid of Giza are the so called “air shafts”. It has been suggested that the shafts were used to ventilate the monument during construction.
What is a firefighting shaft?
A firefighting shaft is a protected enclosure provided for attending firefighters containing a firefighting stair and firefighting lobby. If a lift is provided, this may or may not be a firefighting lift. These features are provided to assist attending firefighters in their operational duties.
What is a shaft in HVAC?
With HVAC shafts, they are designed to transmit power throughout the system when working with a pulley. Each can serve different functions, depending on their place within circulation. They are also designed to resist rust or degradation. For example, blower motor shafts support the system’s fan and air flow.
What is the space between apartment buildings called?
blind alley. noun. a narrow path between or behind buildings, that is closed at one end.
Why did tenements have windows inside?
These windows have an appropriate name: tuberculosis windows. They were mandated by a 19th century city law requiring that tenements have cross ventilation to help reduce the spread of diseases like tuberculosis—the deadly “white plague” not uncommon in poor neighborhoods.
What is a tuberculosis window?
The purpose of window prophylaxis is to abort an early TB infection and prevent progression to tuberculosis (it can take up to 3 months for the TST / IGRA to become positive after infection).
Do tenements still exist?
While it may be hard to believe, tenements in the Lower East Side – home to immigrants from a variety of nations for over 200 years – still exist today.
What are dumbbell tenements?
Definition of dumbbell tenement
: a tenement building formerly common in New York City and having a long narrow plan characterized by two narrow air wells at each side.
What is a shaft in building construction?
In civil engineering a shaft is an underground vertical or inclined passageway. Shafts are often entered through a manhole and closed by a manhole cover. They are constructed for a number of reasons including: For the construction of a tunnel. For ventilation of a tunnel or underground structure.
What is a wet shaft?
Often called the “slurry-method”, wet shaft construction is when a slurry or water is used to keep the hole stable for the entire depth of the shaft.
Do lift shafts need to be fire rated?
4. Does the lift shaft need to be fire rated? The local planning office/architect should be able to advise on this. Generally platform lifts can be manufactured with fire doors but the shaft would need to be clad to provide the rating.
What is shaft and its types?
They are mainly classified into two types. Transmission shafts are used to transmit power between the source and the machine absorbing power; e.g. counter shafts and line shafts. Machine shafts are the integral part of the machine itself; e.g. crankshaft. Axle shaft. Spindle shaft.
Why are shafts stepped?
Stepped shafts are made to deal with different levels of stress that varies along the shaft in a mechanical system. Some shafts are also stepped to stop bearings from moving out of place.
What is a hollow shaft?
Hollow Shaft is the hollow drive shaft fitted to electric motors or right-angle gear drives to accept the solid shaft of the pump. NOTE: The hollow shaft design facilitates impeller adjustment within the bowl assembly and the installation of a non-reverse ratchet in the motor or gear drive.
