The part has a tube about the size of a roll of quarters. Each side has "legs" than adjust from 60 to 135 degrees and lock into place every 7.5 degrees. The ideal mechanism has a center screw and two counter rotating screws on either side. So when you turn the center screw, the outside screws rotate up or down (imagine a set of bird wings moving) but in this case once in the right location they lock in place. The unit needs a removable handle in the front. The picture marked hinge system button was tried, but the legs are to difficult to move manually. They center unit needs to be able to adjust with a removeable crank of some sort.
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Hello, I am a mechanical engineer with more than 10 years of experience. My qualifications match with the requirements and I am capable of doing the job. Please feel free to contact me for further discussion. Thanks.