Thomas Jefferson’s unique swivel mechanism
71Atlas
| Posted in General Discussion on
I have been thinking of reproducing the Thomas Jefferson’s revolving book stand.
Most of the construction looks normal but the “unique swivel mechanism” that is mentioned in all of the descriptions of the book stand has me puzzled. All of the pictures just show a center shaft that the stand revolves around but nothing that I can detect as to how it functions without tipping from side to side.
Does any one have a clue as to what makes the mechanism unique and how it is made?
Mike
Replies
basically
it is a flat platform with an upright shaft with a stop on it. the box form which has reciprical holes in it's cntre goes over the shaft, each side of the bax extends a definite distance up each side. added top piece also extends upwards. there is really no slack in the centre shaft except to allow movement (rotation) . seems to be equally balanced on all sides.
we can sometimes visualize things to be more complex than what they really are.
ron
Thomas Jefferson's unique swivel mechanism
Thanks for the insight into how it was make. Now it seems simple. I guess I read too much into the written description of the "unique swivel mechanism" I was reading on the internet.
Mike
"unique swivel mechanism"
To call it unique may be over-marketing a bit. It is only unique when compared to book stands that don't rotate.
Now, a square shaft extending through square holes, and still rotating - that would be unique. ;-)
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