A window that operates through the use of a rotating handle, often called a crank, allows for controlled opening and closing. This mechanism provides a straightforward method for adjusting the window’s position, offering ease of use and precise ventilation control. Casement windows are a common example, utilizing the turning of a handle to swing the window sash outward.
The advantage of this operating style lies in its ability to create a tight seal when closed, contributing to energy efficiency and reduced air leakage. Furthermore, the design often permits a wider unobstructed view compared to other window types. Historically, this method of window operation has provided accessible operation, particularly beneficial for individuals with limited strength or mobility.
