1990 - Volume #14, Issue #4, Page #26
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Unit To Open And Close Sliding Doors On Large Machinery Barns
We've built two of these to open and close sliding doors on large machinery buildings. Each unit consists of a large truck rim, 1/3-hp. electric motor, gear reducer, 60 ft. of 3/ 16-in. cable, a microswitch to stop the door, a reversing switch, a pushbutton control switch, and wiring. The motor, truck rim and gear redu..........![](/img/download-story.png)
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