Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 470
epencil-bar which carries the pencil moves up and downin a straight line, when the roller is moved from one eudof the slot to the other. The curve of the slot just com-pensates the tendencv of the pencil-point to move in acircular arc, and a straight-line motion results. The outside of the curve is… … Fig The Tabor imlicator. 450 INJECTORS. The two links are parallel with each other in every position they may assume. The lower pivotsof these links and the pencil-point are always in the same straijrht lino. If an imajjinary linkbe supposed to connect the two in sucii amanner as to be parallel…
Mechanical engineering
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