Cable mining

Portable power cables, including elevator cables, mining cables, and welding cables... 

Kaczmarczyk. S. Computer simulation of vibrations and prediction of dynamic tensions in deep mine hoisting cables Mine Hoisting 2000, SAIMM, 2000. 

Aryl Phosphates. Aryl phosphates were introduced into commercial use early in the twentieth century for flammable plastics such as cellulose nitrate and later for cellulose acetate. CeUulosics are a significant area of use but are exceeded now by plastici2ed vinyls (93—95). Principal appHcations are in wire and cable insulation, coimectors, automotive interiors, vinyl moisture barriers, plastic greenhouses (Japan), furniture upholstery, conveyer belts (especially in mining), and vinyl foams. 

Flexible cables for use at mines and quarries Elastomer in.sulafed cables 691/1991, 1026/1991 BS 6708/1998... 

Installations underground in mines and self-propelled mobile surface mining machinery and its attendant electrical trailing cable. 

Otter (or Paravane). A protective underwater device which, when towed with a wire rope from a fitting on the bow of a ship, rides out from the ship s side and cuts the cables of anchored mines. The mines then rise to the... 

Pandora. A WWII code name for the Long Aerial Mine, which consisted of an expl charge attached to 2000 ft of cable. The object of this RAF innovation was to tow the charge behind a Havoc aircraft and train it in the path of Ger bombers. It did not prove successful, and the idea was abandoned in November 1941 Ref J. Quick, Dictionary of Weapons and Military Terms , McGraw-Hill, NY (1973)... 

You can bring lead home in the dust on your hands or clothes if lead is used in the place where you work. Lead dust is likely to be found in places where lead is mined or smelted, where car batteries are made or recycled, where electric cable sheathing is made, where fine crystal glass is made, or where certain types of ceramic pottery are made. Pets can also bring lead into the home in dust or dirt on their fur or feet if they spend time in places that have high levels of lead in the soil. 

Activator, Antitank Mine, M2) 98-100 (Incendiary Bursters) 115 (Fuze in Projected Charge M3A1 used for projecting a detonating cable across the field for mine clearing)... 

Modern coal-mining practice tends towards the use of mechanical devices, such as Cardox, Hydrox Mechanical Miners rather than explosives. This will not necessarily reduce the number of coal mine explosions because these may be, and indeed are known to be, initiated by other means such as faulty electrical equipment, breakage of electrical cables or other means of producing a hot spark or arc... 

Influence Sea Mines, were of various shapes, but usually they were cylindrical, like a bomb in appearance. They did not require contact with a ship in order to fire, and hence could be laid on the bottom many feet below the ship. Any physical change which took place in the water around the mine to the ship s passage over it could be utilized to actuate the firing mechanism. However, the most common types were magnetic and acoustic. Any mine without horns or antenna was almost certainly either an influence mine, or else a Controlled Mine, connected by an electric cable to the shore and fired by sending a current thru that cable (p 35)... 

Type 88 Model 1 Contact Mine consisted of two light-metal hemispheres separated by a cylindrical belt and provided by four chemical horns on upper hemisphere. It was filled with 396 lbs of block-fitted Shimose. The depth setting hydrostat and mooring cable were provided (p 36, Fig 1)... 

Type 92 Moored Controlled Mine was ellipsoidal in shape, 55 by 41.5 inches, filled with 1100 lbs of Type 88 Explosive. The combined control and mooring cable entered the mine thru the base plate. An electric detonator and booster assembly were bolted to the chge underneath the top cover plate. A microphone to detect the presence of ships was also provided (p 36,... 

Type 94 Model 2 was a ground controlled hemispherical mine with a base diam 28 inches and height 25 inches, contg 190 lbs of Type 88 Explosive. The firing cable entered the Booster... 

It was a cylinder 8 inches in diam and 10 inches long, loaded with 33 lbs max of Type 88 Expl or Shimose. The device was towed underwater and when one of the four projecting arms welded to the body fouled a mine mooring cable, the device was electrically fired from the towing ship (pp 46—47, Fig 21 of Ref 1)... 

Note Paravane is a device, usually torpedo-shaped, for protecting a ship from moored mines. It is towed by a cable and has a device that cuts the mine cable, bringing foe. mine to die surface. Paravanes are always used in pairs, one cowed from each bow (Ref 3)... 

V. Jot os consist of propelling-type motors used to furnish auxiliary thrust in the launching of aircraft, rockets, guided missiles, target drones and mine clearing detonating cables... 

In lute 1941 Australian government researchers announced the development of a remote-controlled vehicle that can scout ahead of a rescue crew to locale missing and injured miners. Three stereo-video cameras permit the vehicle to operate in murky areas of a mine. The vehicle also includes gas analysis instrumentation. A fiber-optic cable, wound on a large drum, permits surface operators to convey instructions to the vehicle and to receive the results of gas analysis data and images of what the vehicle "sees. The vehicle is named after a burrowing marsupial, Numbat. 

Demolition Sled, M3 A boatlike sled, 12 ft in length 5 ft wide, manufd for the Army from fiberglass by Martin Co, Baltimore, Md, to carry expls and to blast a safe path thru mine fields in a matter of minutes. The sled is divided into three sections. The front section contains a 2-ft long Jato rocket attached to a linear charge of a plastic expl coiled in a center section. The rear section carries accessories such as a firing towing cable and tools. The fully loaded sled weighs ca 3000 lbs. It can be towed over land or water and behind tanks or other tracked vehicles... 

Other significant uses of PCBs included heat exchangers and hydraulic fluids. Prior to controls PCBs were also used in adhesives, coatings, plasticizers and inks for microencapsulating dyes for carbonless duplicating paper as extenders in pesticide formulations and catalyst carriers in olefin polymerizations to impart hydrophobicity to materials and surfaces in bactericide formulations (combined with insecticides), and in immersion oil for microscopes. Mixed with chloronaphthalenes, PCBs were also used in wire and cable insulation in the mine and shipbuilding industries (ref. 80, p. 455). 

Figure 6.81 Flameproof plug-and-socket connectors ( cable couplers ), fitted into a flameproof enclosure (EEx dl equipment for coal mines).

Plug-and-socket connectors, cable couplers, see Fig. 6.81. These parts are inserted into an opening of the flameproof enclosure and act as a flameproof seal. This also applies to the unplugged state of plug and socket. Such means are favoured where apparatus is frequently removed, e.g. in coal mines (Group I application). 

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