Quote Originally Posted by ranald View Post
Hi Bony, looks like you have the answer to No.1 (I thought it was bart simpsons hair brush).
Well, certainly not Homer's...

Tool 1. Country-folk have a pragmatic view of work and useful implements. Never the less, this city slicker can visualize how ice knife could evolve from hay/ peat knife, especially in possibility one could vary rake and blade set to achieve cutting of ice not too thick compared to blade length. Can also see this being where the varied forms of serrated edge rope knives & cookware originate (ie bread, steak knife etc).

Tool 2. Might work with lumber and carpentry, hard to imagine that for piping, peg shape not well suited to round shapes or flanges. Although if not of extreme weight, could jack one foot of machine base etc. Could it adjust/ shift/ tension belts or the sheaves in a line shafting rig?
There is a rough modern equivalent using bumper jack type action for lifting cabinets...

Beside all that, expected this thread to uncover greatest tool-mystery of time, discovery of what plane all our 10mm sockets converge in.