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Brown - figure 118 |
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Description
A mode of doubling the length of stroke of a piston-rod, or the throw of a crank. A pinion revolving on a spindle attached to the connecting-rod or pitman is in gear with a fixed rack. Another rack carried by a guide-rod above, and in gear with the opposite side of the pinion, is free to traverse backward and forward. Now, as the connecting-rod communicates to the pinion the full length of stroke, it would cause the top rack to traverse the same distance, if the bottom rack was a like movable ; but as the latter is fixed, the pinion is made to rotate, and consequently the top rack travels double the distance. |
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Brown - figure 118
Click to enlarge
A mode of doubling the length of stroke of a piston-rod, or the throw of a crank. A pinion revolving on a spindle attached to the connecting-rod or pitman is in gear with a fixed rack. Another rack carried by a guide-rod above, and in gear with the opposite side of the pinion, is free to traverse backward and forward. Now, as the connecting-rod communicates to the pinion the full length of stroke, it would cause the top rack to traverse the same distance, if the bottom rack was a like movable ; but as the latter is fixed, the pinion is made to rotate, and consequently the top rack travels double the distance.
| Documents: |
507 mouvements mécaniques |
 DMG-Lib |
 https://www.dmg-lib.org/dmglib/handler?image=18566023 |
|
 Europeana |
 http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_18566023.html |
 IFMA |
http://www.ifma.fr |
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 BCU |
http://bibliotheque.clermont-universite.fr |
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