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Benjamin Franklin

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David Costello	04/01/2011 20:34:19
79 forum posts 9 photos	Any
John Stevenson	04/01/2011 20:39:52
5068 forum posts 3 photos	Benjamin Franklin Any comments? ?????????????? OK I'll make one, second picture is out of focus. John S.
1	04/01/2011 20:48:48
65 forum posts 1 photos	Errrr...yes. Not being a horologist, forgive my ignorance, but what am I looking at?
ady	04/01/2011 20:54:27
612 forum posts 50 photos	What time is it? It's a kind of spiral clock with 4 hours per revolution... :-0 I will guess at 1:40 Edited By ady on 04/01/2011 20:57:54
David Costello	04/01/2011 21:04:00
79 forum posts 9 photos	Well i thought you were clock men---what your looking at is a one handed wall clock weight driven,with pendulum,apparently designed by Benjamin Franklin late 18c,you may notice attached to the minute hand is a pointed finger which retracts into the spherical to denote the hour,these clocks are sometimes described as three wheel type.I was hoping for further information,sorry about picture quality its my first attempt. Dave
David Costello	04/01/2011 21:05:37
79 forum posts 9 photos	Well done Ady spot on. Dave
Stub Mandrel	07/01/2011 20:11:20
4318 forum posts 291 photos 1 articles	But how does the hand reset after 12 hours? Seems a lot of complexity to add to make up for losing the minute hand! Neil
David Costello	12/01/2011 20:54:40
79 forum posts 9 photos	Hi Neil Sorry,only just seen your question,upon reaching 12 the pointed hour finger ie the brass one just continous in the same circ;le to 1 o,clock,no reset required,its a bit tricky to describe,but i am sure you get the idea.If you would like the drawings to make there is a book "Clockmaking For The Model Engineer" Thorne,Camden used to stock it. Dave.

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