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)
“Drinking tents were full, glasses began to clink in carriages, hampers to be unpacked, tempting provisions to be set forth, knives and forks to rattle, champagne corks to fly, eyes to brighten that were not dull before, and pickpockets to count their gains during the last heat. The attention so recently strained on one object of interest, was now divided among a hundred; and, look where you would, there was a motley assemblage of feasting, talking, begging, gambling and mummery.”
—Charles Dickens (1812–1870)