ホイールロック式
A mechanism to fire an [[antique firearm]] that was a predecessor to the similar [[flintlock]].  It would use a small arm, called a "dog", to hold a piece of pyrite that'd strike down against a spinning wheel of steel to produce sparks.  These sparks would ignite a pan of gunpowder that would send flames through a small hole in the barrel to ignite the powder in it.  It coexisted alongside the [[matchlock]], but was replaced by the cheaper and less complicated flintlock.

h4. See also

* [[Firelock]]

h4. External link

* "Wikipedia - Wheellock":[https://en.wikipedia.org/wiki/Wheellock]
wheellock