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RACK-AND-PINION MECHANISM OF A FLOAT-TYPE DIFFERENTIAL MANOMETER WITH CONCENTRIC VESSELS |
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Description
Upon a change in pressure in vessel 1, filled with mercury and communicating with vessel 2, float 3 is raised or lowered. Float 3 has a stem with rack a. The motion of float 3 is transmitted through pinion 4, meshing with rack a, to hand 5 which is rigidly attached to the pinion and turns about fixed axis A . |
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