explain the working of an ink filler and straw
Answers
QUE.) How does a ink filler works?
ANS.)I presume you are referring to an old fashioned fountain pen that you fill from a bottle of ink. There is a small flexible rubber sac inside the barrel of the pen which can be compressed by a lever. When the lever is released a partial vacuum is created in the sac that sucks up the ink. I haven't used one in years but remember having received one as a gift from my grandmother when I graduated from high school. There is a very nice article in Wikipedia about these types of pens:
"there is a small flexible rubber inside the refill of the pen which is compressed with a lever.
When the lever is released, a vacuum is created. And then when the pen is dipped in the pot, the lever is pulled back.
Thus, the ink fills in the vacuum and the pen gets filled.
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