Re: Air Dump Car Question...
I have not studied these cars other than photos either. I have over 30 years as a Marine Chief Engineer and worked with thousands of Pneumati and Hydraulic Cylinders.toggle quoted messageShow quoted text
The cylinders would not necessarily have to at mid stroke with the body in normal position. As long as the rod end ("Live End") has a clevis that can act as a hinge that cylinder can be fully retracted while the opposite side works. The same arrangements would be on the opposite side.
Technically, the cylinder should be fully retracted for strength since the opposite will be "pushing" against it. If the application wiould need precision possitioning you would need all cylinders to operate with some sort of individual control device for that positioning.
Lastly, those dump cars used air. If the cylinder were not fully retracted, that opposite side would be "spongy' and not support the weight very well. We have pneumatic cylinders for positioning and they do not have much force. Hydraulics would be needed for strength and force.
If you could substitute the (assumed) plastic "rods" for steel you would not have to worry about paint as you would have the real steel finish.
Hope I have not confused you further.
---- Jack Burgess <firstname.lastname@example.org> wrote:
That is what I was thinking too. Unfortunately, the photos that I have don't