Great Clock of Westminster
E41127
The Great Clock of Westminster is the iconic 19th-century clock mechanism that powers the famous Big Ben tower clock at the Palace of Westminster in London.
Aliases (2)
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
clock mechanism
→
turret clock → |
| architecturalStyle |
Victorian
→
|
| chimes |
Westminster Quarters
→
|
| completedBy |
Frederick Dent
→
|
| constructedBy |
Edward John Dent
→
|
| constructionStart |
1840s
→
|
| country |
United Kingdom
→
|
| designedBy |
Edmund Beckett Denison
→
Sir George Airy → |
| designedForAccuracy |
yes
→
|
| dialDiameter |
about 7 meters
→
|
| escapementType |
double three-legged gravity escapement
→
|
| function |
hour striking
→
quarter striking → timekeeping → |
| hasComponent |
double three-legged gravity escapement
→
fly governors → gear trains → going train → gravity escapement → hour striking train → pendulum → quarter striking train → weights → winding mechanism → |
| heritageDesignation |
part of UNESCO World Heritage Site Palace of Westminster
→
part of a Grade I listed building → |
| inception |
1859
→
|
| locatedIn |
Elizabeth Tower
→
London → Palace of Westminster → |
| notableFor |
innovative gravity escapement design
→
precision for a large public clock → |
| numberOfClockFacesDriven |
4
→
|
| partOf |
Elizabeth Tower clock
→
|
| pendulumLength |
about 4 meters
→
|
| pendulumPeriod |
2 seconds
→
|
| powers |
Big Ben clock faces
→
Great Bell timekeeping → |
| powerSource |
descending weights
→
|
| regulationMethod |
pennies on pendulum
→
small weights on pendulum → |
| significantEvent |
first ticked in 1859
→
subject of major conservation works in the 2010s → |
| strikes |
Great Bell
→
quarter bells → |
| timekeepingAccuracy |
within one second
→
|
| winding |
manual
→
|
| windingFrequency |
three times a week
→
|
Referenced by (3)
| Subject (surface form when different) | Predicate |
|---|---|
|
Palace of Westminster
→
|
hasClock |
|
Palace of Westminster
("Big Ben bell")
→
|
notableFeature |
|
Great Clock of Westminster
("Elizabeth Tower clock")
→
|
partOf |