This class of bridges is usually constructed with chains or cables passing over towers, with the roadway suspended beneath. 威廉·亨利·杜利特.世纪发明.
It is supported by four iron wire cables, each consisting of 1056 wires. 威廉·亨利·杜利特.世纪发明.
Edison was now asked if he thought he could get a greater speed through submarine cables with this system than with the regular methods, and replied that he would like a chance to try it. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The roadway hangs from these cables, suspended by 624 vertical rods. 威廉·亨利·杜利特.世纪发明.
The bridge, 800 feet long, is a single span, supported by four enormous cables of wire stretching from the Canadian cliff to the opposite United States cliff. 威廉·亨利·杜利特.世纪发明.
The cables pass over the tops of lofty stone towers arising from these cliffs, and each cable consists of no less than 4,000 distinct wires. 威廉·亨利·杜利特.世纪发明.
The car is connected to wire cables passing over large sheaves at the top of the well room to a counterbalancing bucket. 威廉·亨利·杜利特.世纪发明.
Cars, holding twenty passengers each, are carried up and down these cables, one car balancing the other, by means of a cable attached to each, which passes around a drum at the top. 佚名.神奇的知识之书.
By another modification of the hydraulic press pipes and cables are covered with a coating of lead to prevent deterioration from rust and other causes. 威廉·亨利·杜利特.世纪发明.
Underground conduits are built, central offices located and cables provided with an eye to the future, and if these plans are carried out important economies are obtained. 佚名.神奇的知识之书.
The ends of the chains or cables are securely anchored. 威廉·亨利·杜利特.世纪发明.
Storms and earthquakes that destroy telegraph systems, enemies that cut submarine cables, cannot prevent the sending of Marconigrams. 鲁伯特·萨金特·荷兰.历史性发明.
In this the hoisting cables from which the car is suspended have at the other end a counterweight and pass around driving sheaves in place of a drum. 佚名.神奇的知识之书.
Nice calculations have to be made as to the tension to be placed on the cables, the allowance for deflection, and the equal distribution of weight. 威廉·亨利·杜利特.世纪发明.
There are four supporting cables, each 16 inches in diameter, and each composed of about 5,000 single wires. 威廉·亨利·杜利特.世纪发明.
The cables are then passed over towers, on which they are supported in movable saddles, so that the towers are not overthrown by the strain on the cables. 威廉·亨利·杜利特.世纪发明.
It has a central span of 1,595? feet between the two towers, over which the suspension cables are hung, and has a clear headway beneath of 135 feet. Edward W. Byrn.十九世纪发明进展.
I was at the pains of making ropes and cables, by twisting ten, twenty, or thirty of the thickest and strongest of theirs. 乔纳森·斯威夫特.格列佛游记.
Rigid triangles of iron pipe are secured to these cables and the trolley wire attached to the triangles. 佚名.神奇的知识之书.
It consists of pairs of wire cables supported by bridges placed about 300 feet apart. 佚名.神奇的知识之书.
So the engineers who studied the problem finally contrived two huge sets of cables, securely fastened at the top, and fixed to a landing place a short distance from the base of the mountain. 佚名.神奇的知识之书.
Thirteen cables work daily across the Atlantic, and an additional one is being laid from Germany. Edward W. Byrn.十九世纪发明进展.
Current was supplied to the road by underground feeder cables from the dynamo-room of the laboratory. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.