Search Results
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Plate 13: Device for raising water from a river, marsh, or fountain by river or canal current
- 1588
Mechanics: horizontal submerged waterwheel; toroidal force pump; conical valve; interrupted crown gear and lanterns; worm and worm gear.
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Plate 140: Bridge for crossing a city or fortress moat and scaling its wall
- 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…
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3 items
Plate 141: Bridge for crossing a city or fortress moat and scaling its wall
- 1588
Mechanics: hand crank; worm and worm gear; lantern and rack; roller guides.
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3 items
Plate 142: Bridge for crossing a city or fortress moat and scaling its wall
- 1588
Mechanics: winch; worm and worm gear; lantern and rack.
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3 items
Plate 143: Bridge for crossing a city or fortress moat
- 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.
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3 items
Plate 144: Bridge for crossing a city or fortress moat and scaling its wall
- 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…
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3 items
Plate 145: Bridge for crossing a city or fortress moat
- 1588
Bridge with retracting sections.
Mechanics: capstan bars; winch; lantern and rack; roller guides.
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Plate 146: Bridge for crossing a city or fortress water moat
- 1588
This machine uses the principle of Nürnberg scissors, which are also known as Narrenschere (fool's scissors).
Mechanics: winch; Nürnberg scissors.
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3 items
Plate 147: Bridge for crossing a city or fortress water moat
- 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…
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Plate 14: Single-person-operated device for drawing water from a well
- 1588
Mechanics: hand crank; toroidal lift pump; flap valve; worm and worm gear.
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Plate 150: Section of a bridge transported by horse
- 1588
See Plate 151 for the assembly of this bridge.
Monogrammed "JG" on rock at lower left.
Mechanics: winch.
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3 items
Plate 151: Bridge for crossing a very deep river
- 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…
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3 items
Plate 152: Bridge for crossing a city or fortress water moat
- 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.
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3 items
Plate 153: Bridge for crossing a city or fortress water moat
- 1588
Bridge composed of boat-like floating sections, positioned by pulling them into alignment via a heavy and tethered arrow shot into the scarp.
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Plate 154: For breaking the bolt off a door
- 1588
Can be operated by a single person, easily and with little noise.
Mechanics: wrenches.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 155: Mechanism of screw-jack for lifting a door from its hinges
- 1588
Can be operated by a single person, easily and with little noise. See Plate 156 for illustration of this screw-jack in operation.
Mechanics: worm and worm gear.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 156: Screw-jack for lifting a door from its hinges
- 1588
Can be operated by a single person, easily and with little noise. See Plate 155 for illustration of its mechanism.
Mechanics: worm and worm gear.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 157: Screw-jack for breaking the iron gratings of a portcullis
- 1588
Can be operated by a single person, easily and with little noise.
Mechanics: wrenches.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 158: Screw-jack for breaking the iron gratings of a portcullis
- 1588
Can be operated by a single person, easily and with little noise. The device depicted here is also illustrated on Plate 157.
Mechanics: wrenches.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 159: Screw-jack for lifting a door from its hinges
- 1588
Can be operated by a single person, easily and with little noise.
Mechanics: wrenches.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 15: Device for raising water by river current
- 1588
Mechanics: undershot waterwheel; toroidal force pump; flap valve; double interrupted crown gears and lantern gear; lantern and crown gear; roller guides.
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Plate 160: Screw-jack for bending the iron gratings of a defensive grille
- 1588
Can be operated by a single person, easily and with little noise.
Mechanics: hand crank; worm and worm gear; lantern and rack.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 161: Screw-jack for bending the iron gratings of a grilled window
- 1588
Can be operated by a single person, easily and with little noise.
Mechanics: hand crank; worm and worm gear; lantern and rack.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 162: Screw-jack for breaking the bolt off a door
- 1588
The machine is braced against the chest. Can be operated by a single person, easily and with little noise.
Mechanics: hand crank; worm and worm gear.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery
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Plate 163: Screw-jack for breaking the bolt off a door
- 1588
The machine is braced against the chest. Can be operated by a single person, easily and with little noise.
Mechanics: hand crank; worm and worm gear.
- Author Ramelli, Agostino, 1531-approximately 1600
- Subject Jackscrews, Machinery