Portable wood splitting pneumatic tool - has conical screw with turbine air exhaust holes blocked by spring controlled from hand grip

摘要

The pneumatic tool has a threaded conical screw with a spring in its centre. When compressed, this opens to the entry of the cylinders by lifting the air exhaust valves. A support column above the screw has a turbine and two safety hand grips. The screw has cylindrical holes to atmosphere and compressed air is fed from the top to the turbine. Control is by hand grips one of which works a cable attached to the spring. The cylindrical holes are blocked by the spring and freed by compressing it with the hand grip.