If you're implying I am incorrect in logic, that's fine. Certainly can handle that. If you are implying that this test never happened, well, that just hurts. 😢
You are correct. The force in a pumper isn't there until near closed. However, the experiment was to only show how a longer link reduces load compared to a shorter link. That's it. Simply that. All because of the angle. Only that.
Reduced effort was witnessed all through the curve of the lever, not just 90 degrees where, of course, the heavy load was causing the input force of the lever to put force on the side wall being so high up in the stroke (where it is never seen in a pumper).
The family and I are off to N.C. (Raleigh area) tomorrow. When we return, the jig is being reassembled, dam it!
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