Spring-assisted Gravity Knives
Some civilian gravity OTF knives have a small helper spring to kick out the blade. This partial spring drive is not sufficient to classify this type of knife as a switchblade, because it does not drive the blade out to full lock.
Read more about this topic: Sliding Knife
Famous quotes containing the words gravity and/or knives:
“Here I sit down to form characters. One I intend to be all goodness; All goodness he is. Another I intend to be all gravity; All gravity he is. Another Lady Gish; All Lady Gish she is. I am all the while absorbed in the character. It is not fair to say—I, identically I, am anywhere, while I keep within the character.”
—Samuel Richardson (1689–1761)
“Through open doors, the dining-room declares
A larger loneliness of knives and glass
And silence laid like carpet.”
—Philip Larkin (1922–1986)