An Elementary Course of Civil Engineering for the Use of Cadets of the United S
An Elementary Course of Civil Engineering for the Use of Cadets of the United S
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In our eReader you can find the full English version of the book. Read An Elementary Course of Civil Engineering for the Use of Cadets of the United S Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book An Elementary Course of Civil Engineering for the Use of Cadets of the United S
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To quickly assess the difficulty of the text, read a short excerpt:
Turning-bridges may be made either of timber, or of cast iron ; the latter material is the more suitable, as admitting of more ac- curacy of workmanship, and not being liable to the derangements caused by the shrinking or warping of frame-work of timber.
628. Rolling-bridges. These bridges are placed upon fixed rollers, so that they can be moved forward or backward, to inter- rupt, or open the communication across the water-way. The part of the bridge that rests upon the rollers, when the passa...ge is closed, must form a counterpoise to the other. The mechan- ism usually employed for manoeuvring these bridges consists of tooth-work, and may be so arranged that it can be worked by one or more persons standing on the bridge. Instead of fixed rollers turning on axl :-s, iron balls resting in a grooved roller-way AQUEDUCT-BRIDGES. 269 may be jsed, a similar roller-way being affixed to the fi . Me-work beneath.
629. Boat-bridge. A moveable bridge of this kind may be made by placing a platform to form a roadway upon a boat, or a water-tight box of a suitable shape.
What to read after An Elementary Course of Civil Engineering for the Use of Cadets of the United S?
You can find similar books in the "Read Also" column, or choose other free books by Dennis Hart Mahan to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Turning-bridges may be made either of timber, or of cast iron ; the latter material is the more suitable, as admitting of more ac- curacy of workmanship, and not being liable to the derangements caused by the shrinking or warping of frame-work of timber.
628. Rolling-bridges. These bridges are placed upon fixed rollers, so that they can be moved forward or backward, to inter- rupt, or open the communication across the water-way. The part of the bridge that rests upon the rollers, when the passa...ge is closed, must form a counterpoise to the other. The mechan- ism usually employed for manoeuvring these bridges consists of tooth-work, and may be so arranged that it can be worked by one or more persons standing on the bridge. Instead of fixed rollers turning on axl :-s, iron balls resting in a grooved roller-way AQUEDUCT-BRIDGES. 269 may be jsed, a similar roller-way being affixed to the fi . Me-work beneath.
629. Boat-bridge. A moveable bridge of this kind may be made by placing a platform to form a roadway upon a boat, or a water-tight box of a suitable shape.
What to read after An Elementary Course of Civil Engineering for the Use of Cadets of the United S?
You can find similar books in the "Read Also" column, or choose other free books by Dennis Hart Mahan to read onlineMoreLess
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