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Ocean Systems' bell showing drop weight. The Drill Master diving accident was an incident in Norway in January 1974 that resulted in the death of two commercial divers.During a two-man dive from the North Sea rig Drill Master, the diving bell's drop weight was accidentally released, causing the bell to surface from a depth of 320 feet (98 m) with its bottom door open and drag the diver working ...
Following this exercise, Steuben published his drill instructions in a manual that was published in 1779 and widely distributed throughout the Continental Army. This manual became commonly known as the army's "Blue Book". It remained the official U.S. military guide until 1812. [1]
A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage and current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged.
The Siemens Charger is a family of diesel-electric/dual-mode passenger locomotives designed and manufactured by Siemens Mobility for the North American market.. There are five variants of the Charger, tailored for different operators and types of service: ALC-42 for Amtrak long-distance service, ALC-42E dual mode for Amtrak inter-city and long-distance routes that serve the Northeast Corridor ...
The Waage Drill II diving accident occurred in the North Sea off Scotland on 9 September 1975, when two divers died of heatstroke after the chamber they were in was inadvertently pressurised with helium gas.
Chargemaster was the first company to manufacture electric vehicle rapid chargers in the UK. [1] [2] As of 2017, the company had supplied more than 30,000 charging points for electric vehicle drivers' homes [3] and more than 10,000 public and commercially operated charging points. [4] The company was founded in 2008 by entrepreneur David Martell.
A hand-held corded electric drill A lightweight magnetic-mount drill. A drill is a tool used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driver chuck. Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use.
A drill bushing, also known as a jig bushing, [1] is a tool used in metalworking jigs to guide cutting tools, most commonly drill bits. Other tools that are commonly used in a drill bushing include counterbores, countersinks, and reamers. They are designed to guide, position, and support the cutting tool. [2]