enter of rod would vibrate between C, and Cj, and would come apparatus shown in Pig. 3. This consists of an arm the weight W an amount it tends to fall due to the to rest only after the force had ceased acting. R having at one end, B, a knife edge bearing on agate, rotation of m m' about O O'. Thus… … long foot, provided with pivot bearings, Pig. 5, and an adjusting screw for varying the pressure of the Tig. 5. pen upon the paper. Hunt's round-pointed "Drawing" rod being the hull and our force representing the forces pens No. 99 were used, carried in aluminium quills produced by the unbalanced…
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