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By the 1920s, battery holders used twin metal clips (like fuse holders) to hold the battery in place while making electrical contact. Patent no. 1439429 was granted in Dec. 1922 for an assembly with two spring arm clips, a small switch, and a lamp assembly on the end of connected wires.
In the late 1960s, spray bottles with trigger-style actuators appeared and quickly became popular, as this design was less fatiguing to use. The original pump-style bottle remained more popular for applications like non-aerosol deodorants, where size was a factor and repeated pumps were not required.
Until the 1960s, cyclists often carried a second bottle on the handlebars, held by a bottle cage fixed to the handlebars themselves and by a third point to the handlebar stem. Such bottle cages are familiar from pictures of the Tour de France. Riders had a cage there rather than have two on the frame, where the centre of gravity is lower ...
A nickel-zinc battery is a type of rechargeable battery that may be used in cordless power tools, cordless telephone, digital cameras, battery operated lawn and garden tools, professional photography, flashlights, electric bike, and light electric vehicle sectors. In 1900, Thomas Alva Edison filed U.S. Patent #684,204 for the nickel-zinc ...
Large plastic bottles for a water dispenser A 25 L (6 + 1 ⁄ 2 US gal) glass carboy acting as a fermentation vessel for beer. It is fitted with a fermentation lock. A Bulgarian demijohn (damadzhana)
A bottle opener is a device that enables the removal of metal bottle caps from glass bottles. More generally, it might be thought to include corkscrews used to remove cork or plastic stoppers from wine bottles. A metal bottle cap is affixed to the rim of the neck of a bottle by being pleated or ruffled around the rim.
The battery's design is safer than lithium-ion batteries, as the use of a flammable liquid electrolyte is avoided. [2] The battery can also be made using low-cost sodium instead of lithium. [2] The authors claim the battery has a much shorter charging time than Li-ion batteries—in minutes rather than hours.
Induction sealing is the process of bonding thermoplastic materials by induction heating.This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents.
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