David Walter
250
Pin Wheel escapement
Hi Nick,
I am always happy to answer good questions.
This escapement is unusual in that the pallets are fitted directly to the suspension spring avoiding losses via a crutch, the impulse
is given directly to the pendulum. The set screw on the long pallet arm is for adjusting the locking, the best French makers always
fitted an adjusting screw to the Pin Wheel escapement but very few ever jeweled the pallets.
The three screws at the top of each suspension are a very clever ( and complicated) device by Breguet for first setting the beat and
then locking the beat set screw in tension,
They are not part of the gimbal system.
Placing the pallets directly on the suspension is very rare, perhaps because of the difficulties of making and solid clamping of the
pallets to the lower chops of the suspension spring.
Much later towards the end of the 19th century Riefler developed an escapement that did not use a crutch and directly impulsed
the pendulum via the suspension spring, this was used on his very successful regulators that were fitted in vacuum tanks.
AHCI Clockmakers at BaselWorld 2010
Clockmakers at the AHCI stand, BaselWorld 2010 As is the custom several clockmakers showed their works. This year I didn't pay much attention to them, but I don't want to rob you of the few pictures I took. Clocks from Matthius and Sebastian Naeschke Cloc...
Many thanks...
I wish I'd been there to see them. I'd love to see the escapement in Philippe Wurtz's Gramat (the long one). He impulses the suspension spring, and it's a very tempting concept. Be fascinating to see how well it works and if he overcomes all the issues it...
Thanks very much!
All of these are beautiful and gorgeous, but I am wondering how many of them can approach the accuracy under half-way normal living conditions of a true pendulum clock - OK a photo of one of these is there. What about the Beat Haldimann Resonance - am ver...
Double Pendulum clock
I am not aware that Beat has posted any info on his resonance clock, however I have almost completed by version of the Breguet No.3671 which is the famous double pendulum clock in The Queens collection. I have had it running since January while I am finis...
Thanks for the info...
Thanks for the info David. I am also not aware of any info about Beat's double pendulum, but I have never really asked as my interest is more on his resonant double tourbillon. He told me that for that watch the resonant effect is much more than he expect...
Very impressive, David....
I can't wait to find out more about this project. I figure that I'll start looking at clocks once my kids are mature enough that I can assume a clock would be safe in my house. Your clock might be one full second off by then... Bill
It's never too soon to get interested in clocks...
Start reading about clocks now, and by the time the kids are old enough you'll known and understand enough to make some veyr informed choices. Clocks are infinitely more fascinating than watches (imho, of course) and there's so much technical and historic...
Wow
Hello David, Thats some mighty impressive data you've just posted regarding your clock. Did you make this accurate a clock completely by yourself? If possible could we please learn some more about or maybe see some photos of your clock. Do you know how ma...
Clockmaking
I make every component in the clock except for the jewels used in the train, I even cut the pallet jewels from Sapphire block. I believe there has only been 11 Double pendulum clocks ever made A.L.Breguet made 3 Double pendulum clocks, No.3671 for King Ge...
Very detailed work
David, I don't think you showed me the picture of the pallet before. It shows just the level of detail that has to be considered for every component. Very impressive even in it's unfinished stages, i like those hands as well, they go very well with the di...
Janvier
Hi David, Some sources say that Janvier built three resonance clocks: two wall clocks, one now in the Patek museum, one belonging to Journe, and a one in the Musée Paul Dupuy in Toulouse, though I don't know anything about this one. I took part in a tour ...
Janvier
Yes, you are correct, I forgot about Toulouse clock, I have a photo of it somewhere, if you would like it posted let me know and I will find it. I had heard unconfirmed rumors that the Breguet belonging to The Queen had running problems at one time, my un...
Suspension and escapement
Hi David, Fascinating idea for the suspension - I need to mull it over and see if I understand it. The escapement also looks interesting. Does the screw on the actuating arm adjust the locking or depth of engagement or...? The impulse seems to be happenin...
Pin Wheel escapement
Hi Nick, I am always happy to answer good questions. This escapement is unusual in that the pallets are fitted directly to the suspension spring avoiding losses via a crutch, the impulse is given directly to the pendulum. The set screw on the long pallet ...
Marvellous, David, marvellous...
Terrific work - and a most respectful homage . [On the subject of gains and losses: Perth's loss is Santa Barbara's gain. We just didn't know what we had, lurking there on Stirling Highway....] Cheers, pplater.
pardon my ignorance...
what program is this? is it meant for commercial clockmakers only? how do you "hook" it up to the clock, esp a pendulum clock? and 1.0sec/year!!!
Microset
The timer is the Microset from Bryan Mumford. All sorts of lovely sensors plus the software. A serious tool, and a serious way to spend money once you start thinking of all the options www.bmumford.com >> and 1.0sec/year!!! Welcome to the world of precisi...
Measuring timekeeping
The program and the machine to collect the data is a MicroSet, it is manufactured by Bryan Mumford in Santa Barbara, California. It is available to anyone who has a need to measure the rate on any clock. For this particular reading reading I used two Micr...
Fantastic clocks David
David, The detail pictures of your clock show just how much skill, time and effort must have gone into making such beautiful timekeepers. The Breguet style hands really go well with the clock. The plates are superbly finished, as are each bridge and part ...
Fascinating, David.
Really appreciate you posting this, and look forward to seeing more. Thank you.
breath taking
i can't even support my Wrist Watch hobby ,but getting in to Clocks ?? !hmmmm in my Dreams. thank you for sharing Tony