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matching cambrian lampworks
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Federation University Historical Collection
Tool - Object, E. Thomas & Williams Limited, Cambrian Lampworks, Kop Staszic Carbide Lamp
... E. Thomas & Williams Limited, Cambrian Lampworks... & Williams Limited, Cambrian Lampworks ...Carbide lamps, or acetylene gas lamps, are simple lamps that produce and burn acetylene (C2H2) which is created by the reaction of calcium carbide (CaC2) with water. Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable acetylene gas lamps, worn on the hat or carried by hand, were widely used in mining in the early twentieth century. A mining or caving lamp has calcium carbide placed in a lower chamber, the generator. The upper reservoir is then filled with water. A threaded valve or other mechanism is used to control the rate at which the water is allowed to drip into the chamber containing the calcium carbide. By controlling the rate of water flow, the production of acetylene gas is controlled. This, in turn, controls the flow rate of the gas and the size of the flame at the burner, and thus the amount of light it produces. Staszic is a coal mine located in Katowice , in the district Giszowiec, Poland This type of lamp generally has a reflector behind the flame to help project the light forward. An acetylene gas powered lamp produces a bright, broad light. Many cavers prefer this type of unfocused light as it improves peripheral vision in the complete dark. The reaction of carbide with water produces a fair amount of heat independent of the flame. In cold caves, carbide lamp users can use this heat to help stave off hypothermia. When all of the carbide in a lamp has been reacted, the carbide chamber contains a wet paste of slaked lime (calcium hydroxide). This is emptied into a waste bag and the chamber can be refilled. (http://en.wikipedia.org/wiki/Carbide_lamp, accessed 06/05/2015)Metal Carbide Mining lamp with light reflector and hook.miners lamp, mining lamp, statszic, poland, carbide, mining -
Federation University Historical Collection
Mining Lamp, E. Thomas and Williams Ltd, Welsh Mining Lamp
... cambrian lampworks... lamp mining cambrian lampworks miners flame safety lamps R ...This lamp is typical of lamps used in Welsh Coal Mines. It was purchased from the supplier around mid 1995. The Welsh Miners’ Lamps were ingeniously designed over 180 years ago to alert coal miners to danger. It ensures the burning of a protected flame in the presence of explosive gas, by regulating the necessary supply of atmospheric air, and by allowing the products of combustion to pass through without igniting the gaseous atmosphere. If the atmosphere is so heavily charged that noxious gas enters the lamp, its presence will be indicated by a change in the length and color of the flame, and (unless there are exceptional circumstances), the miner has sufficient warning to secure his safety. (http://www.welshminerslamps.com/info_lamp_personaluse.shtml, accessed 06/05/2015) E. Thomas & Williams, Ltd. mining lamps have been in continuous production since 1860. Cambrian Lamps are approved for use in coal mines where methan gas and oxygem deficinecy are hazards.Solid Brass traditional miners Flame Safety Lamp with Copper Chimney. The base of this lamp is tooled from solid brass because brass does not spark when it hits rock and is therefore the safest metal to use underground. The lamp burns lamp oil (kerosene). R. Thomas and Williams Ltd Makers Aberdare Wales Cambrian No 152897mining lamp, miner's lamp, thomas and williams, wales, welsh, welsh miners lamp, mining, cambrian lampworks, miners flame safety lamps