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B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
B66C23/88—Safety gear
B66C23/90—Devices for indicating or limiting lifting moment
B66C23/905—Devices for indicating or limiting lifting moment electrical
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Engineering & Computer Science
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Mechanical Engineering
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Current-Collector Devices For Electrically Propelled Vehicles
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Variable-path surface transport system utilizing an angle comparator with a control guideway or externally supplied data for lateral offset, and method
Variable-path surface transport system utilizing an angle comparator with a control guideway or externally supplied data for lateral offset, and method