Monday, August 18, 2014

BICYCLE ARGOGRAPH

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 in front of the subject, of the tension balance and other pieces of apparatus. A cast iron wheel of 5 ½ feet in circumference, weighing 22 kilos and mounted on ba. 

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