Set 360

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2071. 10" long:

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2072. Approximately 9" long, take a look at Neatorama for more guesses on this one and a chance to win a T-shirt:

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2073. 24" long:


















2074. 6" long, not including the lock:


















2075. 7" long:



















2076. 2" long, sent in by a visitor who found about a dozen of these devices in the Arizona desert over the years, pushing the plunger closes the threaded hole:




The entire device is plastic except for the springs:



A view of the other side, looks like it was glued to something:




















Answers:


2071. A photographer's magnesium flash gun, pulling the trigger causes a spark at the plate that holds the magnesium:

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2072. A carpet stretcher, similar to patent number D26,881:

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2073. This was part of a farm irrigation system:


















2074. Handcuffs from China:


















2075. A black powder measure for use with old firearms:


















2076. An S.I. (safety, ignition) device from a countermeasure flare. It fits within the casing and is ejected along with the charge, releasing the springs and allowing the ignition through the threaded hole. The burning on the back of the device is from the high temp fuel who's heat signature is designed to attract anti-aircraft missiles.














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Last week's set is seen below, click here to view the entire post.








More discussion and comments on these photos can be found at the newsgroup rec.puzzles.