A valve consisting of a pair of semicircular plates that are attached to a spindle across a pipe and hinged to allow flow only one way
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off.
(butterfly valve) a valve in a carburetor that consists of a disc that turns and acts as a throttle
(Butterfly Valve) A water control device with a narrow disc mounted in the water flow path that can be turned so the disc is aligned with the path allowing water to pass by it, or perpendicular to the path to stop the flow.
A valve consisting of a disk rotating on an axis across the diameter of a pipe to regulate the flow, as in the throttles of many engines
(drawing) the creation of artistic pictures or diagrams; "he learned drawing from his father"
(drawing) a representation of forms or objects on a surface by means of lines; "drawings of abstract forms"; "he did complicated pen-and-ink drawings like medieval miniatures"
A picture or diagram made with a pencil, pen, or crayon rather than paint, esp. one drawn in monochrome
The art or skill or making such pictures or diagrams
The selection of a winner or winners in a lottery or raffle
(drawing) an illustration that is drawn by hand and published in a book, magazine, or newspaper; "it is shown by the drawing in Fig. 7"
computer-aided design: software used in art and architecture and engineering and manufacturing to assist in precision drawing
A rake, short for rakehell, is a historic term applied to a man who is habituated to immoral conduct, frequently a heartless womaniser. Often a rake was a man who wasted his (usually inherited) fortune on gambling, wine, women and song, incurring lavish debts in the process.
A man who behaves dishonorably, esp. toward a woman
someone who is morally reprehensible; "you dirty dog"