Old_No7 wrote on Mar 5
th, 2018 at 12:39pm:
Yet another request for Martini action information...
Does anyone have a link to "online animation" of a Martini action being cycled? I've studied many images of a Martini in the cocked, fired and open positions, but what I'd really like to see is some animation of how the parts all interact.
I'm trying to determine the interface between the downstroke of the level and the cocking of the "toggle" (British part name) or "tumbler" (U.S. part name) that cocks and releases the striker in the bolt. I've pretty much figured out what the "arm" (top of that part that cocks the striker) and the "release" (rear of the part that interfaces with the sear) will need to look like using other proof parts that I've made (from plastic, dare I say...). But I'm having some trouble modeling the "cock" of that piece that works with the lever.
This is for the
(You need to Login or Register to view media files and links) I have from Zella-Mehlis in Germany in 1924. It came to me at a good price because it doesn't function with the aluminum "proof part" for the toggle/tumbler that was in it -- but I'm aiming (pun intended) to fix that problem.
Here she is, for those who didn't see it in the other posting...
(You need to Login or Register to view media files and links) I'd appreciate any help on this, thanks!
Old No7
DARRYL:
The "toggle" turns on the same pin as the lever, and has a protrusion on the front that bears on part of the lever. When the lever is lowered, this tilts the toggle back, withdrawing the firing pin , and far enough back that the sear will engage the sear notch on the toggle. Thus, when the lever is then closed, the sear holds the toggle, keeping the FP withdrawn and ready to fire.
An important adjustment is that the part of the front of the toggle that bears on the lever should JUST ALMOST touch the lever when the toggle is forward and the lever is closed. This way, the "unlocking" first movement of the lever will withdraw the firing pin, allowing the block to swing down, and not be hung up in the firing pin indent. If the sear is dis-engaged, you should feel the firing pin with a rod down the bbl. The firing pin should retract BEFORE the block is un-locked and starts to open. Or you can dis-engage the sear and feel how far the firing pin pushes the lever closed. Aim for "not quite".
CHRIS
RGChristensen
Pages: 1
Re: "Animation" of Martini Action Requested (Read 1255 times)
