Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 15
the gear. A, fast on the shaft, a^which runs inside of b^ and the direction ofthe upright shaft is reversed. 8. Speed-pulleys used for lathes and othermechanical tools, for varying the speed ac-cording to the work operated upon. 9. Cone-pulleys for the sanie purpose as8. This motion is used in… … Mechanical Movements. II 11. Another method of effecting the sameresult as 3, without guide-pulleys. 12. Simple pulley used for lifting weights.In this the power must be equal to the weightto obtain equilibrium. 13. In this the lower pulley is movable.One end of the rope being fixed, the othermust…
Mechanical movements
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