Lamps Using Other Systems
Here are some less common ways of balancing arms.
| Lamps having a vertical axis |
|---|
| This kind of lamp has a forearm balanced by weight or springs. Its disadvantage is that the upper arm cannot point up or forwards. |
| Friction |
|---|
|
The friction between the twisted arm controls the movement between the arms.
|
| Mechanical coupling devices |
|---|
| This lamp works by coupling together the upper arm and the forearm. It is called a gravity-locked or cam-locked elbow See here. |
| Hydraulic arm |
|---|
| The Biggest pivoting arm lamp in the world is in Rotterdam. It has one hydraulic cylinder to control the forearm, and one hydraulic cylinder to control the upper arm. |
| Pneumatic arm |
|---|
| Arm lamp with a pneumatic cylinder. The gravity compress the air in the pneumatic cylinder. |
Read more about this topic: Balanced-arm Lamp
Famous quotes containing the words lamps and/or systems:
“The lamps are going out all over Europe; we shall not see them lit again in our lifetime.”
—Edward Grey, 1st Viscount Grey Of Falloden (1862–1933)
“Before anything else, we need a new age of Enlightenment. Our present political systems must relinquish their claims on truth, justice and freedom and have to replace them with the search for truth, justice, freedom and reason.”
—Friedrich Dürrenmatt (1921–1990)