Scraping Machine

This mechanism converts rotary motion into reciprocating motion.
Input: grey shaft to which a head (in glass) is fixed.
Green bearing body pivoted on the head performs wobbling motion. Blue crank having revolution joint with the green body via two brown ball bearings makes pink tool slider reciprocate. Joint between the blue crank and cyan ball is cylindrical.
Turn orange screw to move violet nut for setting stroke length L of the red tool. The video shows adjusting process to increase the angle A between the green bearing body and the head (in glass) for larger stroke length.
When A = 0 deg., L = 0.
This design is taken from patent US2940324.
The list of all videos in channel thang010146 (uploaded till 31 Oct. 2017) including pictures, brief descriptions and YouTube links (2700 Animated Mechanical Mechanisms) now is available.The list consists of 4 parts:
Part 1: Transmission of continuous rotation
Part 2: Other kinds of motion transmission
Part 3: Mechanisms of specific purposes
Part 4: Mechanisms for various industries

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