What kinds of pencil sharpners are there?
There are many kinds of pencil sharpeners that have been developed through the years.
The most common ones, the manual sharpners, can be of the following kinds:
Mechanical sharpeners: a portable variety, usually small and in the shape of a rectangular prism. The blade inside rotates around the pencil, sharpening it. The shavings emerge through a slot.
Blade sharpeners: small and portable, hold replaceable shaving razor blades or permanently fitted blades. They work similarly to knives, but in a more convenient and safe way.
Cylindrical cutters: larger variety, stationary, powered by a crank. One hand holds the pencil, the other turns the crank.
Another common pencil sharpener found often in offices is the electric sharpener. It works on the same principle as the manual sharpener, but the blade rotates quickly thanks to an electric motor, either powered by batteries or plugged into the electrical system.
There are still people, mainly artists, that sharpen their pencils with a knife.
Oct 06, 2013 |
Office Equipment & Supplies