Uploaded April 2021 | Updated September 2026, 1 week ago
In 1673 Christiaan Huygens built the first clock with a pendulum replacing the foliot to improve accuracy of time measurement.
Huygens modified the verge and foliot escapement by turning it 90 degrees so that the crown wheel with sawtooth-shaped teeth faces up. He installed a pendulum which replaced the inertial oscillator, a balance wheel, or in the earliest clocks a foliot, a horizontal rod with weights on either end.
This Lego escapement consists of an escape wheel, shaped like a crown with pins along the perimeter, perpendicular to the wheel itself that is attached to an axle. Red pallets at opposite ends of a horizontal rod, or verge, above the crown wheel, engage the pins alternately. The pallets are offset from the verge’s axis so that when one pallet engages one of the pins, the other pallet is between two pins, therefore avoiding jamming the escapement.
The two escapements have identical escape wheel and pallet fork. However, the verge and foliot is regulated by the inertia of the foliot that is prone unpredictable error, while the one regulated by a pendulum has a natural frequency of oscillation.
The foliot appears to be slowing down and speeding up unpredictably throughout the run, while the pendulum escapement appears to be oscillating steadily, as expected.
The escapement converts rotational energy of the crown wheel into oscillating movement that regulates timing. Also, the escapement restrains the motion of the falling weight where the pallets prevent the crown wheel from spinning uncontrollably in order to let the weight fall in a measured manner.
Watch how Lego models replicate verge clock escapement types:
youtube.com/playlist?list=PLCbYhDNjOviH38uCdbc6uum38vKZjXGyE
#legoEscapement #ClockEscapement #SimpleHarmonicMotion #legoclockmechanism
#LegoEscapement #ClockEscapement #SimpleHarmonicMotion #LegoClockMechanism #MechanicalOscillator
In 1673 Christiaan Huygens built the first clock with a pendulum replacing the foliot to improve accuracy of time measurement.
Huygens modified the verge and foliot escapement by turning it 90 degrees so that the crown wheel with sawtooth-shaped teeth faces up. He installed a pendulum which replaced the inertial oscillator, a balance wheel, or in the earliest clocks a foliot, a horizontal rod with weights on either end.
This Lego escapement consists of an escape wheel, shaped like a crown with pins along the perimeter, perpendicular to the wheel itself that is attached to an axle. Red pallets at opposite ends of a horizontal rod, or verge, above the crown wheel, engage the pins alternately. The pallets are offset from the verge’s axis so that when one pallet engages one of the pins, the other pallet is between two pins, therefore avoiding jamming the escapement.
The two escapements have identical escape wheel and pallet fork. However, the verge and foliot is regulated by the inertia of the foliot that is prone unpredictable error, while the one regulated by a pendulum has a natural frequency of oscillation.
The foliot appears to be slowing down and speeding up unpredictably throughout the run, while the pendulum escapement appears to be oscillating steadily, as expected.
The escapement converts rotational energy of the crown wheel into oscillating movement that regulates timing. Also, the escapement restrains the motion of the falling weight where the pallets prevent the crown wheel from spinning uncontrollably in order to let the weight fall in a measured manner.
Watch how Lego models replicate verge clock escapement types:
youtube.com/playlist?list=PLCbYhDNjOviH38uCdbc6uum38vKZjXGyE
#legoEscapement #ClockEscapement #SimpleHarmonicMotion #legoclockmechanism
#LegoEscapement #ClockEscapement #SimpleHarmonicMotion #LegoClockMechanism #MechanicalOscillator
