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  2. Whim (mining) - Wikipedia

    en.wikipedia.org/wiki/Whim_(mining)

    The gin wheel at Nottingham Industrial Museum dating from 1844, is a wooden drum, set on a vertical pole within a wooden frame, with a horizontal shaft from the drum for attaching to a horse. Before joining the other exhibits at Nottingham Industrial Museum, the whim was used at Langton and Pinxton Collieries. [citation needed]

  3. Industrial fan - Wikipedia

    en.wikipedia.org/wiki/Industrial_fan

    Industrial exhausters – This is a relatively inexpensive, medium-duty, steeply inclined flat-bladed fan for exhausting gases, conveying chips, etc. Pre-engineered fans (PE) – A series of fans of varying blade shapes that are usually available in only standard sizes. Because they are pre-engineered these fans may be available with relatively ...

  4. Drum - Wikipedia

    en.wikipedia.org/wiki/Drum

    The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. [1] Drums consist of at least one membrane, called a drumhead or drum skin, that is stretched over a shell and struck, either directly with the player's hands, or with a percussion mallet, to produce sound ...

  5. Axial fan design - Wikipedia

    en.wikipedia.org/wiki/Axial_fan_design

    An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. The flow is axial at entry and exit. The fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan. Factors which determine the performance of the fan include the ...

  6. Drum kit - Wikipedia

    en.wikipedia.org/wiki/Drum_kit

    Bass drum Muffling the bass can be achieved with the same muffling techniques as for the snare, but bass drums in a drum kit are more commonly muffled by adding pillows, a sleeping bag, or other soft filling inside the drum, between the heads. Cutting a small hole in the resonant head can also produce a more muffled tone, and allows the ...

  7. Category:Drum rudiments - Wikipedia

    en.wikipedia.org/wiki/Category:Drum_rudiments

    This category concerns articles on a rudiment of drumming, one of a set of basic patterns used in rudimental drumming. These patterns form the basic building blocks or "vocabulary" of drumming, and can be combined in a great variety of ways to create drumming music.

  8. Drum motor - Wikipedia

    en.wikipedia.org/wiki/Drum_motor

    In the United States Patent Office can be found an early description of a drum motor from 1932. The application for this "conveyor roller" is from November 1928 and it was applied by the Pittsburgh subsidiary of the German engineering company Schloemann. [1] 20 years later this very early concept was finally conveyed into an industrial drive.

  9. List of drum manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_drum_manufacturers

    This is a list of some drum makers, individuals and companies known for making drums and accessories, such as drum sticks. It includes defunct companies, and companies who additionally make instruments other than drums, and manufacturers of cymbals, which are a common component of drum sets.