A fountain pen is a writing instrument that uses a metal nib to apply water-based ink, or special pigment ink—suitable for fountain pens—to paper. It is distinguished from earlier dip pens by using an internal reservoir to hold ink, eliminating the need to repeatedly dip the pen in an inkwell during use. The pen draws ink from the reservoir through a feed to the nib and deposits the ink on paper via a combination of gravity and capillary action. Filling the reservoir with ink may be achieved manually, via the use of an eyedropper or syringe, or via an internal filling mechanism that creates suction or a vacuum to transfer ink directly through the nib into the reservoir. Some pens employ removable reservoirs in the form of pre-filled ink cartridges.
A syringe is a simple reciprocating pump consisting of a plunger that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside of the tube, allowing the syringe to take in and expel liquid or gas through a discharge orifice at the front (open) end of the tube. The open end of the syringe may be fitted with a hypodermic needle, a nozzle or tubing to direct the flow into and out of the barrel. Syringes are frequently used in clinical medicine to administer injections, infuse intravenous therapy into the bloodstream, apply compounds such as glue or lubricant, and draw/measure liquids. There are also prefilled syringes.
A water gun is a type of toy gun designed to shoot jets of water. Similar to water balloons, the primary purpose of the toy is to soak another person in a recreational game such as water fight.
The Parker Duofold is a range of fountain pens produced by the Parker Pen Company.
The Parker Pen Company is an American manufacturer of luxury writing pens, founded in 1888 by George Safford Parker in Janesville, Wisconsin, United States. In 2011 the Parker factory at Newhaven, East Sussex, England, was closed, and its production transferred to Nantes, France.
The Parker 51 is a fountain pen first introduced in 1941. Parker marketed it as “The World’s Most Wanted Pen,” a slogan alluding to restrictions on production of consumer goods for civilian markets in the United States during World War II. Parker's continual advertising during the war created demand that took several years to fulfil after the end of the conflict.
Quink is a fountain pen ink developed by the Parker Pen Company. It was introduced in 1931 and has remained in production ever since.
A piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston. Piston pumps can be used to move liquids or compress gases. They can operate over a wide range of pressures. High pressure operation can be achieved without adversely affecting flow rate. Piston pumps can also deal with viscous media and media containing solid particles. This pump type functions through a piston cup, oscillation mechanism where down-strokes cause pressure differentials, filling of pump chambers, where up-stroke forces the pump fluid out for use. Piston pumps are often used in scenarios requiring high, consistent pressure and in water irrigation or delivery systems.
An air pump is a pump for pushing air. Examples include a bicycle pump, pumps that are used to aerate an aquarium or a pond via an airstone; a gas compressor used to power a pneumatic tool, air horn or pipe organ; a bellows used to encourage a fire; a vacuum cleaner and a vacuum pump. All air pumps contain a part that moves which drives the flow of air. When the air gets moved, an area of low pressure gets created which fills up with more air.
A hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing glycol ethers or diethylene glycol, to transfer pressure from the controlling mechanism to the braking mechanism.
The Parker Jotter is the Parker Pen Company's second and best-selling retracting refillable ballpoint pen. The first was the Hopalong Cassidy ballpoint.. Since 1954, over 750 million have been sold worldwide. It is priced between $6 for lower end models, and $20 for higher end models, such as special editions. Its refill has a ballpoint tip originally called the T-Ball, with a unique textured surface that greatly reduces slipping and failure to transfer ink onto slick paper, known as "skipping." The technology is now commonly used in the pen industry. The pens are also a popular advertising medium. The external design of the Parker T-Ball refill is a configuration copied by many other brands of refillable pens.
Demonstrator pens are pens which are partially or mostly transparent.
Fountain pen ink is a water-based ink intended for use with fountain pens.
A potato cannon is a pipe-based cannon that uses air pressure (pneumatic), or combustion of a flammable gas, to launch projectiles at high speeds. They are built to fire chunks of potato, as a hobby, or to fire other sorts of projectiles, for practical use. Projectiles or failing guns can be dangerous and result in life-threatening injuries, including cranial fractures, enucleation, and blindness if a person is hit.
Cannula transfer or cannulation is a set of air-free techniques used with a Schlenk line, in transferring liquid or solution samples between reaction vessels via cannulae, avoiding atmospheric contamination. While the syringes are not the same as cannulae, the techniques remain relevant.
Piston-driven air displacement pipettes are a type of micropipette, which are tools to handle volumes of liquid in the microliter scale. They are more commonly used in biology and biochemistry, and less commonly in chemistry; the equipment is susceptible to damage from many organic solvents.
Onoto is a British brand of luxury fountain pens and accessories. Originally manufactured by Thomas De La Rue & Company, Limited from 1905 until 1958, the brand was relaunched by "The Onoto Pen Company Limited", based in Colney Hall, Norwich in 2005. Onoto pens have been used by numerous notable people from history such as Field Marshal Douglas Haig and Prime Minister Winston Churchill. Other famous names include Florence Nightingale, Edgar Wallace and Natsume Soseki, the foremost Japanese novelist of the Meiji Era.
Sheaffer Pen Corporation is an American manufacturing company of writing instruments, particularly luxury fountain pens. The company was founded by Walter A. Sheaffer in Fort Madison, Iowa, and incorporated in 1913 to exploit his invention of a lever-filling fountain pen. The brand was sold by French company Bic to A. T. Cross Company in August, 2014. In August, 2022 the brand was sold to and is currently owned by William Penn Private Limited, a multi-brand retailer and distributor of writing instruments and accessories.
A vacuum filler is a machine used for filling pasty products. The pasty products are moved with the aid of a vane cell feed system under a vacuum.
The Parker Jointless "Lucky Curve" is a range of fountain pens released by the Parker Pen Company in late 1897. The pen used the Lucky Curve ink supply system, designed to draw ink even when the pen was not in use, which was invented and patented by George Safford Parker in 1894. The pen was named "Jointless" because of its one-piece ink barrel, designed to prevent leakage, an innovation at the time – though the design made the refilling process messy. The pen was Parker's first to be advertised outside the United States. The American government purchased the pens in large quantities and a Parker Jointless was one of the pens used to sign the Spanish–American Treaty of Paris in 1898.
