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writing instruments [4]click to hear

The first true writing instruments were made by the Sumerians in Mesopotamia nearly 5,000 years ago.
writing instruments [4] ballpoint pen point joint clip push-button spring thrust tube thrust device cartridge

ballpoint pen click to hear

Instrument invented at the beginning of the 20th century; the writing tip holds a small rotating ball.

point click to hear

Tip that contains the ball bearing used to deposit ink from the cartridge onto the writing surface.

joint click to hear

clip click to hear

Curved metal bar that attaches the ballpoint pen to a pocket.

push-button click to hear

Button controlling the mechanism that advances and retracts the cartridge.

spring click to hear

Elastic metal part that compresses to push the refill out and relaxes to retract it.

thrust tube click to hear

Part that is activated by the push-button; it pushes out or retracts the writing tip when pressure is applied.

thrust device click to hear

Protruding part that locks the thrust tube in a forward or retracted position.

cartridge click to hear

Small reservoir containing ink and ending in a point.