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3109. 14" long, take a look at Neatorama for more guesses and a chance to win a T-shirt.
3111. 50" long:
3112. 18" long:
3113. 7" long:
3114. 5 3/4" long, text on it reads DFHA MED.OC.TR.AANO, sent in by someone who would like to find the purpose of this item:
The four slots at the small end are 3-1/4" long:
3109. This is a reaction propulsion pistol, it was tested in zero gravity aircraft flights as a means of individual maneuvering in free fall, photographed at National Museum of the United States Air Force in Dayton, Ohio.
3110. A magnetic particle inspection yoke, it was used to test a piece of metal to see if there are any cracks in it:
3111. This is a hay spear that was meant to be mounted on a tractor:
3112. A wire fence stretcher, patent number 598,526:
3113. A phone system flat spring relay:
3114. This is a black powder wedge, it was filled with black powder, placed into a drilled hole in the end of a log and then lit. The resulting explosion would split the log into three pieces if the wedge was in the center, into two pieces if it was offset.
Are you interested in Old Tools and Tool Collecting? Want to learn more about tools, and meet some great people who have the same interests? Please take a minute to check out the Mid-West Tool Collectors Web Site at this link: www.mwtca.org.
To submit photos, send them to the address in my profile, please include dimensions, any text on the item, and where it was found.
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.