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Fuzes, Inside Out
Often I get asked about stripping down fuzes, to see whats inside. I would strongly discourage this practice as often, these fuzes being over 70 years old, can be damaged or coated in bitumen. Stripping them down doesn't really achieve much!

Below are some pictures of a fuze, that was recently stripped down, the exterior did not look too bad, some original paint remained, sadly stripping it down showed that damp had penetrated the case and had caused the switch block to crumble.
Parts of the (9) airburst fuze stripped down recently
Parts of the (9) airburst fuze stripped down recently
Top of fuze removed
Top of fuze removed
First sign that damp had penetrated was the switch block crumbling.
First sign that damp had penetrated was the switch block crumbling.
Rusted and discoloured switch block
Rusted and discoloured switch block
Sad state , crumbling switch block breaking up.
Sad state , crumbling switch block breaking up.
(9) airburst
(9) airburst
Top of switch block
Top of switch block
Side view clearly showing vib switch
Side view clearly showing vib switch
Base
Base
(25) fuze
(25) fuze
Switch block
Switch block
Side view clearly showing vibration switch
Side view clearly showing vibration switch
Top of (25) fuze
Top of (25) fuze
It's interesting in that this item was used in the gripping series of Danger UXB and was shown being handled by Anthony Andrews.
Side
Side
Other Side
Other Side
Side view
Side view
type (50) anti disturbance fuze , top removed
Top of Fuze
Top of Fuze
Top view of (26) fuze
Top view of (26) fuze
Side view clearly showing vib switch
Side view clearly showing vib switch
Inside of (26) showing the single pin , the other is a dummy pin
Inside of (26) showing the single pin , the other is a dummy pin
Top of (26) fuze
Top of (26) fuze
Top of (28)B2
Top of (28)B2
Internal view of switch block shown clearly is the inertia switch
Internal view of switch block shown clearly is the inertia switch
Same fuze
Same fuze
Close up shot of switch block
Close up shot of switch block
(28)B 07 top
(28)B 07 top
top view again showing the inertia switch
top view again showing the inertia switch
Side view
Side view
(28) B6 top
(28) B6 top
Switch block Inertia switch
Switch block Inertia switch
switch can be seen between the 12oclock to 2 o clock position.
(35) top
(35) top
Top view of switch block
Top view of switch block
Side view of switch block
Side view of switch block
Other Side
Other Side
Base
Base
type (17) stripped
type (17) stripped
Top view
Top of fuze removed
Top of fuze removed
top of (41)A fuze
top of (41)A fuze
Inside of fuze
Inside of fuze
Internals of the (55) Fuze minus lower capacitors
Internals of the (55) Fuze minus lower capacitors
former (broken top)
former (broken top)
Top of (55) fuze due to the force of explosion the top has sheared away and is distorted.
Top of (55) fuze due to the force of explosion the top has sheared away and is distorted.
Pip can be clearly seen, also the wire that is soldered to the top of the case can be seen protruding from the side just above the impact switch.
(55)fuze with case removed ,
(55)fuze with case removed ,
valve in place,
valve in place,
Side view
Side view
Underneath of (55) fuze still has the felt washers in place
Underneath of (55) fuze still has the felt washers in place
55 Fuze
55 Fuze
If you look closely top right shows recess where the top is fitted to the switch block prior to injecting with pitch for waterproofing.
Type (15) impact switch
Type (15) impact switch
Shown with drilled hole ready for inserting a screw in valve used for injecting salt solution to short out internal capacitors.
Modern self tapping Valve
Modern self tapping Valve
Next luting ( a type of plastercine )
Next luting ( a type of plastercine )
This would be applied to the fuze, to prevent leaks, prior to forcing the Salt sulution into the interior of the fuze
Top of Anti disturbance (70)B fuze from Butterfly bomb
Top of Anti disturbance (70)B fuze from Butterfly bomb
Inside of fuze
Inside of fuze
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