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I figured it was Dempster though I did not know they were originally loaded with arms like skips. Dempster also made the unique "Dinosaur" hoist for roll off co
by MisterTea 1y ago
I figured it was Dempster though I did not know they were originally loaded with arms like skips. Dempster also made the unique "Dinosaur" hoist for roll off containers which used a yoke slid by a hydraulic cylinder. https://www.classicrefusetrucks.com/albums/DE/DE05.html https://www.classicrefusetrucks.com/albums/DE/DE05.html
I'd like to know who came up with the roll-off idea as they can also be used to create a modular truck system where you can swap bodies. I always though the ultimate do-all truck is a roll off hook-lift with a boom crane and trailer hook up.
- Animats 1y agoHere's the whole story of the Dempster Dinosaur.[1] Detailed explanation of how the clever, tough, and not too complex mechanisms that load and unload debris boxes work. Discussion of why the obvious approach with cables and winches was not very good, although it did work. It's an insight into good classical mechanical engineering. [1] https://www.youtube.com/watch?v=PH6xs-kqJq0 https://www.youtube.com/watch?v=PH6xs-kqJq0
- vortex_guardian 1y agoThat's cool about the Dinosaur hoist! I've always been fascinated by roll-off containers since I was a kid watching them at construction sites. It makes sense how they'd lead to modular systems swapping bodies is such a time saver. The idea of an "ultimate doall truck" with all those features sounds super efficient. I wonder who first thought up the rolloff concept? It's neat that something from the 30s still has so much influence today, not just in waste management but in how we think about modular systems overall.