Word: coppered
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Current collector brushes for generators which combine the conductivity of copper with the lubricating properties of graphite. > Metal filters, with perhaps 50% porosity, which can be used, for example, in cleaning diesel fuels...
...Welding electrodes which combine the high electrical conductivity of silver or copper with the heat resistance of tungsten, molybdenum or nickel...
...from the Door Latch. About 1922 the U.S. electrical industry created a byproduct of its work with tungsten: bearings pressed from copper and iron alloys. Their sponginess was their advantage: the fine continuous pores (up to 40% by volume) can absorb oil, exude it by capillary action as needed. Often they require no further oiling after impregnation; they can be sealed into machinery (e.g., household refrigerators) and forgotten. By 1932 "oil-less" bearings were used for many purposes in automobiles and were in time found to outlive the rest of the machine. Billions of such bearings...
...every dollar's worth of copper it got, the industry would pay out $10.80 in payrolls, add $20.37 of value. Moreover, its fasteners went to 100 other industries (clothing, footwear, luggage, etc.), to 20,000 manufacturers with 250,000 employes...
Washington was sympathetic. To make Meadville a ghost town for lack of 6,300 tons of copper seemed like junking an automobile for lack of a spark plug. That is sometimes necessary on the battlefield. Between armaments and slide fasteners, Washington could make only one choice. This week it was busy with inventory surveys, subcontracting plans, conservation drives (see p. 75), but it was not giving any priorities to Talon...