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Subject Military bridges Remove constraint Subject: Military bridges

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    • 1588

    Bridge composed of a boat, with extensible end sections that can be rolled out if the boat is not as long as the water is wide; additionally, the doubled-over end sections can also be unfolded for extra length.

    • 1588

    Bridge composed of boat-like floating sections, positioned by pulling them into alignment via a heavy and tethered arrow shot into the scarp.

    • 1588

    Bridge composed of broad-bottomed boats, paddled via an internal crank, positioned with a rudder, and fastened together.

    Monogrammed "JG" on rock at lower right.

    Mechanics: horizontal crankshaft.

    • 1588

    Bridge composed of boats, positioned with oars, anchored in place, and connected by unfolding doubled-over bridge sections. See Plate 150 for the transportation of components of bridge by horse.

    Monogrammed "JG" on…

    • 1588

    See Plate 151 for the assembly of this bridge.

    Monogrammed "JG" on rock at lower left.

    Mechanics: winch.

    • 1588

    Bridge sections composed of trapezoidal prisms are transported rolled up. Unrolled, the sections are connected together with hinges, and the bridge floats on the water.

    Mechanics: winch; ratchet; projectile throwing…

    • 1588

    This machine uses the principle of Nürnberg scissors, which are also known as Narrenschere (fool's scissors).

    Mechanics: winch; Nürnberg scissors.

    • 1588

    Barrels of earth and debris can be thrown into the moat from under the front of the machine as a decoy to distract from the doubled-over bridge, which can be unfolded quickly and unexpectedly.

    Mechanics: winch; hand…

    • 1588

    Accordion folded bridge sections can be quickly and unexpectedly rolled out and brought up to the wall.

    Mechanics: capstan bars; hand crank; worm and worm gear; lantern and rack; roller guides.

    • 1588

    Plate oriented in landscape format. Barrels of earth and debris can be thrown into the moat via an opening in the front of the machine as a decoy to distract from the doubled-over bridge, which can be unfolded quickly…