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Originally Posted by Fernando K
Hello
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Interesting. The second sear blocks the first, but can only move by turning. How is it handled by the shooter? The second guarantor seems continually bound by the small double spring at the end of the plate. Thanks
Affectionately
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Hi I thought you might be interested .Maybe this image makes it clearer. This arrangement seems to be transitional between earlier snaphaunces with interlocked horizontally moving sears and flintlocks / snapaunces with vertically moving sears . I haven't seen it illustrated before and may be uniquely Italian. It seems surprising to find it on a late seventeenth century gun but this antiquated style of lock with its external buffer continued to be made in the early eighteenth century.
On full cock the secondary sear D slips under the tail of the primary sear C at E locking it into the tumbler notch B. On release the force of the mainspring drives the sear out of engagement. The V spring controls the movement of both the primary and secondary sears.