ENDLESS LADDER GIVES EXERCISE TO CLIMBER (Jun, 1936)
ENDLESS LADDER GIVES EXERCISE TO CLIMBER
Climbing, pushing, pulling, lifting, and other forms of exercise are provided by a vertical treadmill designed by an Oregon inventor. Two endless chains, running over sprocket wheels, are joined by steps to form a rotary ladder. An adjustable brake regulates the needed motive force.
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lol
Good idea, but looks like the ladder needs to be a little longer. Getting one’s hand caught in those uncovered sprockets might hurt.
Cool. The LadderMaster, forerunner of the StairMaster.
Actually this would be a lot easier than climbing a ladder. The climber doesn’t have to lift his own weight to a higher level, just push the ladder to a lower level. And the brake being adjusted according to the climber’s weight means the ladder would have to rotate very easily. Otherwise he would find himself climbing over the top
Treadmills are also too easy to use. You just have to push the belt backwards as you stay in one position, which is much easier than actually running normal.
He’s got some nice exercise shoes on too.
Newton’s third law of motion actually suggests that the energy needed to stay at the same height using this thing is somewhat similar to climbing a ladder at a steady rate. In the first case, energy goes into the “adjustable brake”, in the latter, in potential energy.
Yes, I agree with Tib. The energy needed to climb this ladder is exactly the same as that needed to climb a real ladder. They do make modern versions of this, but normally slanted 30-45 degrees. Looks like it uses a hydraulic pump with an adjustable flow valve to regulate the resistance.
Dear Sir,
we want to Buy the same in Banglore, India, pl guide
The modern version of this may be found here http://www.jacobsladder…
a jacobs ladder is NOT the same thing.. this is vertical.. which is what i want, though just a little taller.. i hope some day somebody makes this again.