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[2] 1844: Thomas Hancock patents the vulcanization of rubber in Britain immediately followed by Charles Goodyear in United States. [3] 1856: Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869
Celluloids are a class of materials produced by mixing nitrocellulose and camphor, often with added dyes and other agents.Once much more common for its use as photographic film before the advent of safer methods, celluloid's common present-day uses are for manufacturing table tennis balls, musical instruments, combs, office equipment, fountain pen bodies, and guitar picks.
An example of gold plated jewelry. Originally, costume or fashion jewelry was made of inexpensive simulated gemstones, such as rhinestones or lucite, set in pewter, silver, nickel, or brass. During the depression years, rhinestones were even down-graded by some manufacturers to meet the cost of production. [1]
The first plastic made from synthetic components, it was developed by Leo Baekeland in Yonkers, New York, in 1907, and patented on December 7, 1909. [3] Bakelite was one of the first plastic-like materials to be introduced into the modern world and was popular because it could be moulded and then hardened into any shape.
Unassembled parts of a Hasegawa 1/72 F/A-18E kit. The frame surrounding the various parts is called the injection moulding "runner" or "sprue" The first plastic models were injection molded in cellulose acetate (e.g. Frog Penguin and Varney Trains), but currently most plastic models are injection-molded in polystyrene, and the parts are bonded together, usually with a plastic solvent-based ...
The manufacture of true ormolu employs a process known as mercury-gilding or fire-gilding, in which a solution of mercuric nitrate is applied to a piece of copper, brass, or bronze; followed by the application of an amalgam of gold and mercury. The item is then exposed to extreme heat until the mercury vaporizes and the gold remains, adhering ...
This eye-catching asymmetrical ring features a combination of rubies and natural diamonds, all set in 14k gold, and it can even be engraved with a custom message for a small fee. $990 at Shane Co ...
Intarsia inlay in wood furniture differs from marquetry, a similar technique that largely replaced it in high-style European furniture during the 17th century, [2] in that marquetry is an assembly of veneers applied over the entire surface of an object, whereas inlay consists of small pieces inserted on the bed of cut spaces in the base ...