Compact Long Stroke mechanism designed to give a long stroke within a small space.

The device consist of two gears fitted on eccentrically positioned shafts. The black drive shaft is mounted in bearings on the machine frame, and the gray shaft is attached to the reciprocating part of the machine with its gear to turn with the shaft. Notice that yellow top plate and bottom plate just like to top plate are joined by red bolts. Top and bottom gear rotates freely between yellow plates.

Notice that during operation horizontal position of shaft axis are not changing. This allow the device to be used in windmills in order to obtain a long stroke for the pump rod for water pumping applications.

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