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Item 44 of 63
1908-1925 Meccano 3 Model 10 Level crossing gate d.jpg
Here you can see the cord drive mechanism. As you can imagine, do to the cord attachment point on the lever describing an arc when moving, the tension on the cord is not constant. The cord is winded on each pulley at least one complete turn. It works...with much slackness.
Image by Carlos Giani, viewed 95 times.
Size: 211.47kb (2000x1500 pixels) 
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