Set 329

For first time visitors I recommend this archive for some of my best posts.



1885. 7" long:






Larger image




Larger image

























1886. 8" tall:








































1887. This was sent in by a visitor:
























1888. An unidentified device that was submitted by a visitor who found it on the side of a road:



It's just less than 2" long:




























1889. Around 5-1/2" tall:






























1890. 72" long, take a look at Neatorama for more guesses on this tool and a chance to win a T-shirt:





Larger image











Answers:


1885. A mechanical speed indicator, the numbers indicated on the dials are used to calculate the RPM when the point is placed against a rotating shaft for a suitable number of seconds:

Larger image

























1886. No verifiable answer yet for this device:
































1887. This is most likely either a tamper for sand, dirt, etc., or a ramrod for a cannon:
























1888. A valve used to adjust the velocity that paintballs come out of the gun.




























1889. This is the mechanism from inside of a collapsible top hat:





Close-up image





























1890. A hand operated ice plow, used for finishing out the groove made by a horse drawn ice plow. After the ice plow had made grooves in the ice, an ice saw was used to finish the cut.

Larger image






I posted this ice saw a few years ago, it's 5'-7" long:



In some parts of the country it's known as an ice knife.




















To submit photos, send them to the address in my profile.















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








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