A trip this weekend to a local charity shop lead to a nice find. This is what appears to be a WW2 Shell fuse. It has " Q AE 4 43 133 " stamped around the bottom. On the top there are 5 holes. Please can anyone offer an ID for this item?
A trip this weekend to a local charity shop lead to a nice find. This is what appears to be a WW2 Shell fuse. It has " Q AE 4 43 133 " stamped around the bottom. On the top there are 5 holes. Please can anyone offer an ID for this item?
After hours of research, i have finally managed to find what this object is!
It is from a ww2 Air Burst shell, that was developed during WW2.
Normal time fuses use a precise timer to detonate the round a certain amount of time after firing. Unfortunately, this technique is tricky and slight variations in the functioning of the fuse can cause it to explode too high and be ineffective, or to strike the ground instead of exploding above it. Since 1943, proximity fused artillery rounds have been available that take the guesswork out of this process. These rounds embody a miniature, weak radar transmitter in the fuse to detect the ground and explode them at a predetermined height above it. The return of the weak radar signal completes an electrical circuit in the fuse which explodes the shell.
Jimbo
I think this is the cap of a british No. 700 or 701 time-fuze for antiaircraft purposes.
These both have the typical air inlets, as found on you're cap.
The proximity fuze (V.T.) jimbo is refering to has a greenish resin cap; on top if that, i think a brass cap on a WW2 proximity fuze would interfere with the radar inside.
The 700 and 701 are used in the 3in anti aircraft rocket .During acceleration air enters the holes in the tip of the fuze causing pressure to build up which forces the plunger down over the striker.The lower edge of the plunger bearing on the outer edge of the pawls,causes there inner ends to lift the striker and compress the striker spring.This movement continues untill the inner ends of the pawls are rotated clear of the striker which is then driven into the percussion cap initiating the delay train in the upper time ring.This in turn ignites the delay train in the lower time setting ring which burns for the required period,and then initiates the gunpowder charge in the base of the fuze.The explosion of the gunpowder charge initiates the gain no13 which is located in the adapter ring below the fuze
The 701 is almost identical to the 700 except that instead of using gain no13 this fuze is fitted with a magazine containing two CE pellets which is an integral part of the fuze assembly
regards spotter
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