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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Engine Hoist, convert to more useful crane.
I have an engine hoist similar to this one: http://www.ruralking.com/engine-hois...m-midwest.html It's useful within it's range but I was thinking about making some parts to adapt it for more height, so I can load and unload taller things out of the back of my truck. Referencing the picture in the link above. What if I removed the existing boom and cylinder, installed 2 hand crank winches where the existing boom mounts, and installed a longer boom where the existing hydraulic cylinder mounts at the bottom end? The new boom might be made of channel iron, cut and welded with some angle to "curve" the boom for object clearance. The desired end result would be to stand the boom to where the load would be in the same range that it is in the existing configuration but give high enough lift to load and unload items from a pickup truck, maybe even off the back of a semi. Oh, the 2 hand winches, one controls boom angle, the other lifts the load, snatch blocks could be used to half the speed and double the force. This configuration would be less idiot proof since someone could lower the boom, getting the load beyond the wheels, and flip the thing. But all in all it might be easier to make an adapter for the existing boom so it could be angled closer to vertical, and use a longer extendable boom, then just add a winch and pulley. Either way it should be a simple matter to go from engine hoist to a taller crane by changing a few parts around. RogerN |
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