Set 141

805. 9-1/2" long











806. Probably about 14" long, not sure what this tool is for:











807. Partial/close-up shot:











808. 5-1/2" long











809. 5" long















810. 6" long, this tool was on display behind glass, so the angles to shoot from were limited:













Answers




























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

Set 140

799. 7-1/2" long











800. 10" long, submitted by a visitor:











801. 3" long














802. 12" long











803. 12-3/4" long


9" long, a different version of the same tool:











804. 9" long










Thanks to Kerry for photo number 800, and also thanks to the people at the Live Free or Die Antique Tool Auction and some of the dealers there for allowing me to take photos of the other five items in this post.

Next week I'll be going out of town for a few days so the next set will be posted a day early, the morning of the 25th. I won't be able to reply to comments or post the answer page until Friday or Saturday, unless I can get access to a computer while I'm away.











Answers
















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

Set 136

793. 9" long










794. 42" tall












795. 5/8" x 5/8" x 11-1/4", not sure exactly what this one is; turning the end piece slowly raises the inner parts:


After 2-1/4 revolutions, the first piece is fully raised:


Another 2-1/2 turns for the second:


And the same for the third:


I made this drawing to show the inside parts, turning the screw forces the cylinders into the trapezoidal pieces, which raises them up:










796. Partial/close-up shot:










797. 7-1/2" long, patented Oct. 9, 1883:















798. 3-1/4" long, the owner of this pocket knife is looking to find out if it was made for a particular purpose:


















Answers


















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

Set 135

786. 2-7/8" tall


The top part can be unscrewed:












787. 8" long












788. 5" tall




The center of the base is slightly concave.











789. A regular ball bearing can roll down a 7" long, 5 degree incline in about a second; the ball in the photo below takes a full 50 seconds to roll down the same ramp. The puzzle here is to explain why this ball rolls so slowly. 7/8" diameter:










790. 5" long, thanks to Dan for submitting this tool:















791. The two smaller pieces can be stored in the 8" long handle when not in use, thanks to Gary for these photos:













792. 1-3/8" to 5" tall, this jack could be used for many different purposes, but it was marketed for one specific type of work. The idea for this one is to determine what profession or activity it was made for. The platform is 3" square.













Answers














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