Mechanics: undershot waterwheel; force pump; conical valve; lantern and crown gear; Three-lobed disc cam; bell crank.

Mechanics: horizontal spoked treadwheel; force pump; conical valve; double interrupted crown gears and lantern gear; spur gear and lantern; horizontal working beam.

Mechanics: undershot waterwheel; force pump; conical valve; double interrupted crown gears and lantern gear; worm and worm gear; horizontal working beam; bell crank.

Mechanics: undershot waterwheel; force pump; lantern and crown gear; grooved eccentric cam; bell crank.

Mechanics: undershot waterwheel; force pump; cylinder cam with single lobe; roller guides.

This device uses a paternoster pump, named for its resemblance to a rosary. Also known as a "rag and chain" pump or a "rubber bucket chain" pump.

Mechanics: hand crank; paternoster chain pump; flywheel.

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…

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.

Mechanics: winch; worm and worm gear; lantern and rack.

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…

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

Mechanics: hand crank; chain of buckets.

Mechanics: horse whim.

The parallel reciprocating bars used in this device are also known as stangenkunst.

Mechanics: undershot waterwheel; machine crank; bell crank; parallelogram linkage; parallel reciprocating bars.

Mechanics: undershot waterwheel; machine crank; bell crank; roller guides.

Mechanics: horse whim; machine crank; spur gear and lantern; lantern and crown gear; parallelogram linkage.

Mechanics: overshot waterwheel; horizontal waterwheel; machine crank; spur gear and lantern; worm and worm gear; lantern and crown gear.

Complete structure can be rotated by rudder to catch optimal wind. Sails can be stopped and secured. Contains mechanism to lift grain sacks.

Mechanics: windmill (post mill); lantern and crown gear.

Cap with sales can be rotated by rudder to catch optimal wind.

Mechanics: windmill (tower mill); lantern and crown gear; roller thrust bearing.

Mechanics: winch; falling weight; spur gear and lantern; lantern and crown gear; ratchet.

Mechanics: capstan bars; falling weight; lantern and crown gear.

Mechanics: hand crank; slotted-head screw.

Mechanics: horizontal spoked treadwheel; bucket; spur gear and lantern; roller shaft bearing.

Mechanics: inertia chain; bucket; spur gear and lantern; roller shaft bearing.

Mechanics: bucket; internal spur gear and lantern pinion; lantern and crown gear; roller thrust bearing.