Bicycle Ergograph Laboratory Equipments Supplies Description and Specifications for Lab Tenders
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 provide for the attachment, directly in front of the
subject, of the tension balances and other pieces of apparatus. A cast
iron wheel of 5 ½ feet in circumference, weighing 22 kilos and mounted
on ball bearing, is substituted 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.)., Attached
to a board at the top of the uprights. The cords from the 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..