I need to make one of these for my husband. My bow has a shelf, but his doesn't,he's cut up his hand quite a bit because of it.
Rabe Leder Haar Haarspange Handarbeit/Rabe/Krähe Lederhaarspange
Different ways to hang your sword
This is an axial or barrel engine, which has multiple cylinders arranged around and parallel to a central shaft, like the chambers in the cylinder of a revolver. The piston thrust is converted to rotary motion by a swashplate, wobble-plate or Z-crank mechanism.