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Between 1949 and 1950, the Bic Cristal was designed by the Décolletage Plastique design team at Société PPA. [ 4 ] [ 5 ] Bich invested in Swiss technology capable of shaping metal down to 0.01 millimetres (0.00039 in), which could produce a stainless steel one-millimetre (0.039 in) sphere which allowed ink to flow freely. [ 6 ]
A ballpoint pen, also known as a biro[1] (British English), ball pen (Hong Kong, Indonesia, Pakistani, Indian and Philippine English), or dot pen[2] (Nepali English and South Asian English), is a pen that dispenses ink (usually in paste form) over a metal ball at its point, i.e., over a "ball point". The metals commonly used are steel, brass ...
László József Bíró (Hungarian pronunciation: [ˈlaːsloː ˈjoːʒɛf ˈbiːroː]; born László József Schweiger; 29 September 1899 – 24 October 1985), Hispanicized as Ladislao José Biro, was a Hungarian-Argentine inventor who patented the first commercially successful modern ballpoint pen. The first ballpoint pen had been invented ...
"Reynolds Rocket" pen was introduced at Gimbel’s department store in New York City, selling $100,000 worth of pens on the first day. [2] Demand in 1945 was running 30,000 pens per day, making it America's #1 ballpoint pen. [3] However, within three years the price of the pen went from $12.50 to 50¢.
Front-wheel drive. In British English, the term drive shaft is restricted to a transverse shaft that transmits power to the wheels, especially the front wheels. The shaft connecting the gearbox to a rear differential is called a "propeller shaft", or "prop-shaft". A prop-shaft assembly consists of a propeller shaft, a slip joint and one or more ...
A torque tube system is a power transmission and braking technology that involves a stationary housing around the drive shaft, often used in automobiles with a front engine and rear drive. The torque tube consists of a large diameter stationary housing between the transmission and rear end that fully encloses a rotating tubular steel or small ...
Constant-velocity joint. A constant-velocity joint (also called a CV joint and homokinetic joint) is a mechanical coupling which allows the shafts to rotate freely (without an appreciable increase in friction or backlash) and compensates for the angle between the two shafts, within a certain range, to maintain the same velocity.
Macro image of a 0.7 mm Rotring Rapidograph nib showing the flow control wire. A technical pen is a specialized instrument used by an engineer, architect, or drafter to make lines of constant width for architectural, engineering, or technical drawings. Technical pens may use either a refillable ink reservoir or a replaceable ink cartridge.