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In 1959 [8] Hozelock Ltd in the United Kingdom invented and patented the international standard plastic, click-on style, push-fit hose end connector now used with garden hoses. The concept was developed to replace metal hose end connectors in coal mines, which were prone to cause static sparks and the possibility of methane gas explosions.
Hozelock Ltd was originally set up by Sydney Codling in 1959 [citation needed] to sell hoses and garden equipment including the first plastic quick-connector hose connector. As well as manufacturing the equipment in the Haddenham factory they also designed many of their own products.
Flare connection: 1) Screw thread; 2) O-ring; 3) Body; 4) Nut; 5) Seal interface; 6) Support ring (sleeve), and 7) Flared tubing. Flared connectors should not be confused with compression connectors, which are generally not interchangeable. Lacking a compression ring, they use a tapered conical shaped connection instead. A specialized flaring ...
The connector provides power to the keyboard on the outer two contacts and receives data signals on the inner pair. The cable between the computer and the keyboard is a coiled cord with an appearance very similar to a telephone handset cable. [11] The connector on the Amiga 1000 uses crossover wiring, similar to a telephone handset.
[2] [3] The many types are partly to prevent incorrect connection. [2] The larger connector sizes are the most varied, with designated connectors ranging from analog and digital signals to AC and DC power. [4] Each "coding" has a different keyway that prevents incorrect connection between incompatibly keyed connectors. [5]
7-pin ISO 1724 trailer connector type 12N (Towing vehicle side). This connector uses a mix of pin and socket terminals. Physical design according to standard ISO 1724. [4] [8] The 7-pin connector uses all 7 pins on newer trailers according to the ISO standard. [9] [10] On older trailers there's sometimes a 5-wire setup using a 7-pin connector.