S-mine 35 fuze: S Mi Z 35

all right today's video is on the fuse that you see on top of the s mines the s mine 35 is the German bouncing mine or bounding mine from the Second World War designed in 1935 anyways it's the ones that they call a bouncing Betties and all the movies and nickname and everything part this is a dug example of a fuse from one of those you can see one of the prongs broken which I'll have to replace and this video I'll just show you the basics of how it works first off this right here is just a safety pin prevents you from pushing on the fuse so you do is you remove that after you've placed the mine and you pull it out inside there not sure if you can see it is little Baldy dent or detent with a spring and it rides up into the hole where the screw goes we're going to remove the screw and the prongs here for the rest of this so bear with me trusty Swiss Army knife normally in these mines the only thing above the ground would be about that the prongs that way the whole mind was completely invisible there are the fuses that were used on it but this is probably the most well known this is a pressure fuse and surprisingly complicated and there's also probable reason they I don't think they were making them throughout the whole war could be wrong about that but I do know in 44 they'd switch the type of fuse and the type of bounding mind anyways please pull out now pretty easily when I first got it they were jammed in there pretty tight so when you pull these out anyways alright there's three parts four pieces to this body the bottom one is just where the cap goes in this case I have placed a Remington shotgun primer and it fits the bigger ones don't I haven't crimped in place which means that if you hit it it'll probably pop out this way anyways the middle section gives you some distance for the firing pin to or a striker to go through also if you look inside it you can see there's a rim there you'll see what the room is for the necks a little bit and you just pull this out here this is the spring that you saw when I pushed on them perform so what keeps it up pushers on here and that's where it's pushing all right I'll remove the spring grab the parts I don't keep in it you can see the spring that's in there there's a little ball bearing on the other side of the spring and that's what keeps the pin in place locks into the middle part where you see right here all right anyways we'll take the last bit of this get the spring out there we go at just the weather protection that goes on top of the Rhine and there it looks like a piece of paper or cardboard all right so now the ingenious part of this is a little striker that you have here and that fits in here with the spring just bring in for now anyways and this goes in like that and this is pushed so that this little part here is actually lined up with those holes there when it's lined up with those holes you've got these two little ball bearings that fit in here on this side one on this side here and that is actually what keeps this plunger held up there when it's in the tube and in this part of the casing here and it's up to about here the ball bearings are forced up against that ring that you see in there which makes it so that they push and they can't come out which means that it's holding the plunger in on either side with the bearings once you put enough weight on it to push pushes down past that ring the ball bearings are able to expand which releases the firing pin or plunge or whatever you want to call it which then flies down and hit C or strikes the prime primer that was in it which initiates the delay on the grenade these grenades as I said it was plenty it was pressure so as soon as you stepped on it you've started the the delay there is no Hollywood hold my foot on and I don't have to worry about anything as soon as you pushed it down those bearings removed and the striker fired so I'll attempt to put it back together here with the striker on camera might not be very clear for everyone because it is a little bit difficult to do there is supposed to be a special tool for it I don't own that special tool so anyways we'll start first things first because one would be second right place this in here like this you take the spring as you can see mine was since it was dug up and water got in you have some electrochemical corrosion that formed anyways that Jam to spring up and the whole thing didn't move so if anyone owns one of these and it doesn't move it's a good chance that it's from that anyways next thing you do is you take the bearings and you place them in the spring actually holds it in place for me which I find useful all right now once they're in place take the spring with the plunger place it there and you take this and you screw the whole thing together now a slightly difficult part is pushing the plunger in while forcing down on the housing and then bring the housing up while the plunger is locked in place so push us down push that up push that right down release and as you see the striker is in place now just to show you I will launch it like this I'm not going to place this on I'll make a lot of noise now I'll do it in the next part of this video alright so first thing we'll make sure the safety here works technically this is placed you couldn't push down on this and have a fire as you see here now I don't know exactly how much but it's a couple of pounds of pressure here so you're going to hear it fire when I push down hard enough here and that's all it takes to set one of these mine's going and you see there's a nice little dent or crack on this lid no anyways and that's how that works I'll do a live fire next once I get this back together alright let's see if I can give this a good test let's put the primer in it safety pins removed all right we'll take it apart and see what it did to damaged anything decent strike apparently no damage to the housing so that probably the first time it's fired since whoever it was pulled it on the ground deactivated it I guess you would say anyways I hope you enjoyed that ah this here as I said somebody sold me and it was in the condition you basically see it and except it was all pinned and closed up first thing all the springs were pretty much rusted in them but they actually still work so I'm able to use them for now I can put a list of measurements up for anyone who needs to replace parts on theirs there is some aluminum in this but I don't think the whole thing is made of aluminum I can't tell you exactly what because I don't have any documentation on these things I'm assuming this one here was made in 37 because the last two digits but that's just completely uneducated guess I don't know what the RR stands for it's on a few of these different ones but I'm sure there's people historians up there amateur historians I could tell more about these things than I can I just like the mechanics of them so anyways as I was saying before once you've stepped on this you're basically no way of stopping the actual mine it will go off I've heard that your best bet was to lie down if you've managed to realize that you had set one off before the delay kicks up the mine well for the delay rent runs out hits the charge underneath the mine launches it out of the ground and then the mine explodes if you on the ground most of the shrapnel would miss you so I wouldn't want to test that but I'm guessing if you had no other choice that was your round best bet anyways this they said when I got it was all one piece somebody the person who tried to take the top off but didn't work very well as you see there are a couple of notches here when the home lines together and properly torqued they all line up they were lined up properly torqued drilled about 1/8 of an inch right to thee as you see right to the inner threads and then a really soft metal pin maybe even letter or whatever was placed there to keep it from being opened since I wanted to open mine I carefully drilled out just the lead I didn't damage any of the metal around it so the pin was removed and then carefully I turned the turn the housing with the with some protected pliers so that I didn't scratch or destroy the finish it was once that was off the bottom part had the old cap stolen it had been drilled out I popped that off pretty easily this was pretty decent cleaned it all up a bit as you see here there's a lot of itching in there the spring was basically seized up like this and completely white with what I'm assuming is aluminum oxide the bearings had to be forced out of it but they were in pretty good condition as I said the springs all pretty decent this one was hard to get out but all it took was cleaning once I freed the spring got the pieces off the top I was able to take the whole thing apart and properly clean and oil everything to get some of the junk off of it and now I have a partially well a fully working but not the pretty stuff s/m i z35 fuses which is shrapnel mine sooner or is under which is german for fuse I guess 35 for the year of manufacture of the or design of the mine anyways if you have any questions on this as I said if you need any measurements feel free you leave a comment at the bottom hope you enjoyed this for me it's like buying fuses for mines and artillery in that very interesting I know it's not everyone's everyone enjoys this kind of stuff but hopefully you learn something tonight thanks for watching

Channel: Stray03

Views: 30,942

Rating: 4.816092 out of 5

Keywords: landmine, mine, germany, s-mine, bouncing betty, zunder, fuze, fuse, ww2, history

Id: iegtxQrNCsI

Length: 16min 49sec (1009 seconds)

Published: Wed Apr 02 2014