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Sheridan Products Inc. was formed to produce Pneumatic Air Pellet Rifles with production beginning in March 1947. In the early 1940s Co-founder Ed Wackerhagen, dissatisfied with a pellet gun used by his son, set out to build one of the finest airguns in history. The design was to incorporate the philosophy: "Performance is the sum total of many ...
A centrifuge can be a very effective filter that separates contaminants from the main body of fluid. Industrial scale centrifuges are commonly used in manufacturing and waste processing to sediment suspended solids, or to separate immiscible liquids. An example is the cream separator found in dairies.
Benjamin Banneker (November 9, 1731 – October 19, 1806) was an African-American naturalist, mathematician, astronomer and almanac author. A landowner , he also worked as a surveyor and farmer . Born in Baltimore County, Maryland , to a free African-American mother and a father who had formerly been enslaved , Banneker had little or no formal ...
Benjamin Electric Manufacturing Company was a Des Plaines, Illinois electrical company founded in the late 19th century. The company was founded by Reuben Berkley Benjamin and filed its first patent for an electric lamp socket in 1898. The company went on to manufacture various other electrical products. One of Benjamin's most notable products ...
The glass harmonica, also known as the glass armonica, glass harmonium, bowl organ, hydrocrystalophone, or simply the armonica or harmonica (derived from ἁρμονία, harmonia, the Greek word for harmony), [1][2] is a type of musical instrument that uses a series of glass bowls or goblets graduated in size to produce musical tones by means ...
A physical exploded view made by arranging parts of a camera. An exploded-view drawing is a type of drawing, that shows the intended assembly of mechanical or other parts. It shows all parts of the assembly and how they fit together. In mechanical systems usually the component closest to the center are assembled first, or is the main part in ...
Franklin stove. The Franklin stove is a metal-lined fireplace named after Benjamin Franklin, who invented it in 1742. [1] It had a hollow baffle near the rear (to transfer more heat from the fire to a room's air) and relied on an "inverted siphon" to draw the fire's hot fumes around the baffle. [2]
Leyden jar. A Leyden jar (or Leiden jar, or archaically, Kleistian jar) is an electrical component that stores a high-voltage electric charge (from an external source) between electrical conductors on the inside and outside of a glass jar. It typically consists of a glass jar with metal foil cemented to the inside and the outside surfaces, and ...