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Bicycle Ergo graph PI-13 / 12018

A bicycle frame is supported by a wooden stand, from the front of which two uprights ascend and carry a desk and cross piece, which is provided for the attachment of the tension balances and other pieces in front of the subject. A cast iron wheel of 5'6” in circumference, weighing 22 Kilos and is mounted on ball bearing, is substitute for the back wheel. This wheel has slightly beveled edges and is turned true. To the circumference of this, a stout calico is applied, and the two ends of the band are attached to spring balances of 6 lbs. range (Graduated in one oz.) calico-band to the balance pass round adjustable pulleys in order to give them the right direction. An adjustable record counter records the revolution of the wheel.

Bicycle Ergo graph PI-13 / 12018