Velociphile's Journey into Watches

Adhoc stuff about wristwatches. The technology of horology, escapements and patents to the industry and the market. Try me in Japanese or Chinese

Thursday, March 27, 2008

Velociphile’s Watch Movement Challenge

Can anybody make it?

After many hours in the laboratory, the concept of the required mechanical oscillator is clear. We need to improve the 'Q' factor and yet preferably have a system capable of being tolerant to wrist movement. The answer lies in the form of running a low inertia balance wheel with an ultra high speed escapement. Hitherto impossible, the solution arises from the adoption of a predominantly co-axial escapement combined with silicon/ruby parts giving both stability, low friction and particularly low inertia of the pallet fork. I then decided on the superclock philosophy of a free balance only concerned with keeping time rather than releasing the escapement.

With spring barrels similar to those now appearing in most long duration watches, three days running can be achieved with a balance wheel from a typical modern 8 day movement (around 4 mg cm2) oscillating at 43200 vph.

The master balance sits next to the slave. The master balance is entirely free and has no function to perform such as counting or releasing an escapement. It oscillates in solitary spendor preferabl in a vacuum. It would eventually come to rest of course as there is no perpetual motion, and therefore it must receive an impulse to keep it in motion. This is delivered every thirty seconds and just in time by a light arm. This itself is re-set by a heavier arm. The triggered reset of the heavy arm releases the impulse which is fed back to the slave balance.

The slave balance commands the watch timing, entirely self contained and is of the form of any high standard timekeeper that takes one’s fancy, but it must be a highly accurate one and needs to be so as it feeds an impulse to unlock the master light arm and just in time. The phase of the master and slave balances are directly compared, and if the slave is late, it is given an extra force to push it back in phase with the Master. If it is early, no action occurs, but the slave is deliberately set to run a few seconds slow a day, so that hits and misses occur regularly, thus ensuring that the phase of the slave is locked to the master. This is an incredibly sensitive action, with a timing interval of only some mili-seconds. The slave is kept in synchronisation with the master in a phase locked loop. The only engineers I can imagine that could pull this off in a wristwatch would be JLC. I await it.

3 Comments:

  • At March 27, 2008, Anonymous Anonymous said…

    URA genius!

    A fan

     
  • At April 05, 2008, Anonymous Steve Thackery said…

    This master/slave arrangement you describe is obviously that first used in the Shortt free pendulum clock. The Shortt master and slave are coupled electrically, though.

    As far as I know, the only mechanical device to implement this unique coupling arrangement mechanically is Phillip Woodward's W5 pendulum clock.

    I don't think you could build a balance-wheel equivalent if you require the master balance to be in a vacuum. I suspect it would be impractical to operate the impulse lever through a vacuum seal, unless you use some sort of magnetic coupling, which would bring all sorts of challenges in itself.

    Still, I agree with you on one thing - a watch version of the Shortt free pendulum (using balance wheels) would be a *hell* of a challenge!

     
  • At April 05, 2008, Blogger Velociphile said…

    Indeed yes, nothing new here - a Shortt clock but without the electrics...! Woodward is an unsung genius by the way and with no vacuum! Thanks for your comments Steve.

     

Post a Comment

<< Home

 


Copyright 2004, 2005, 2006, 2007 Dr Velociphile - all rights reserved.
Disclaimer:
The opinions posted on this blog are solely those of the author. Velociphile does not warrant the accuracy or completeness of any message, and Velociphile is not responsible for the contents of any post. I mean come on people, get a grip. I take no responsibility for comments posted on this site. Views expressed within it are not necessarily representative of those of Velociphile. Any offensive or abusive content will be removed.

903 142 157 2320 2310 321 5070 5146 5035 3712 3800 3710 5700 5710 3700 3710 5085 5196 5127 5130 5140 15202 15300 5970 5712 6000 5296 2499 5135 3940 5074 5002 5101 5147 5396 5960 5134 5800 5980 5711 5196 5109 5111 5004 5013 5016 5039 sinn tutima fortis amvox1 amvox 5102 5136 5059 5074 3900 15300 14790 15202 memovox grande reveil reverso horology 5100 lemania eta valjoux movements ebauche coaxial co-axial detent verge escapement, grand complication, harrison h4 chronometer chronograph repeater rattrapante monopusher patek philippe audemars piguet vacheron constantin, compressor, sonnerie, jaeger lecoultre jlc ap pp vc not replica not fake not grey import oh no roger dubuis philippe dufour paul gerber fp journe, minute repeater, breguet roger smith omega swatch rolex george daniels tourbillon dead seconds acctim, accurist, acqua, adidas, alfex, allaine, animal, astral, audax, avalon, avia, aynsley, baume Mercier, benetton, benson, bentima, bernex, beuchat, beuche girod, beverley hills, bifora, blandford, bravingtons, breitling, bridgeway, bruford, bucherer, bueche girod, buler, bulova, buren, calvin , lein, camel, camy, caravelle, carriage, carronade, cartier, carvel, casio, castle, catena, cauny, certina, chalet, chateau, chevalier, christian dior, citizen, citron, claude valentni, clock, colibri, constant, contima, continental, corocraft, cortebert, corvette, cuppillard reime, cwc, cyma, delma, delvina, dive , dynamic, doxa, t-graph 2894-2, dragon, dive diving dunhill, ebel, edox, elco, elgin, ellesse, emerson meerson, emperor, empress, enicar, enzo giomani, enzo giovanni, equinox, esprit, eterna, eton, eurastyle, europa, everite, excalibur, f hinds, favre leuba, favre-leuba, felca, fero, festina, fila, fils, focus, fortis, fossil, franklin, free style, garrard, geneva, genevan, geneve, genevre, gillex, giorgio, giorgio arman, girard perregaux, givenchy, glycine, gradus, gruen, gucci, guess, guillame, gul, guy laroche, hamilton, hana, harrods, helma, helvetia, hermes, heuer, imado, infinite, ingersoll, international, invicta, j w benson, jaguar, jakko, jaquet droz, jean phillipe, jean pierre, jean renet, jumbo, junghans, kered, kickers, kienzle, kolber, krug baumen, krug bremen, kundo, lanco, lassale, le chat, le cheminant, limit, long case, longines, lorus, lotus, louis picard, lucerne, majes, majex, , marvin, maurice lacroix guerdat, maurice lacro, medana, memostar, metamec, michel herbeim, mido, mondaine, mondia, mondiane, montdor, montine, movado, mudu, next, nivada, njt, no name, oasis, old england, olma, omac, omega, onsa, orient, oriosa, oris, pallas, park lane, paul jobin, ploprof, peers hardy, pelex, perfex, philip , ercia, philip mercier, picador, pierre cardin, pilot, pinnacle, polaris, poljot, precimax, precista, premex, premia, president, pulsar, q&q, quemex, quicksilver, racer, rado, raf, ramona, raymond weil, realm, record, reebok, reflex, regency, renown, reo-gran, revue, ricoh, rio, rip curl, rjw, roamer, rodania, roidor, rolex, rone, ronson, pussy porn google boobs Yahoo! MSN hentai paris hilton ebay yahoo sex milf tits girls free porn lesbians jessica simpson eminem poetry carmen electra games dogs jenna jameson myspace pamela anderson 50 cent yahoo.com nude games cheat 89.com mapquest girls gone wild rotary, roy king, royce, russell, sandoz, santima, saxon, sector, seiko, sekonda, sergio valente, sicura, slava, smiths, submariner, yachtmaster, daytona, cosmograph, oyster, solvil et tit, solvil titus, sovereign, st michael, storm, strada, stubbs, stunt, summit, superoma, sutus, swatch, swiss army, swiss military, swiza, tag heuer, talis, technos, tikkers, timberland, time chain, timex, timor, tissot, titan, titus, tommy hilfiger, torq, trafalgar, trebex, tressa, tudor, universal, uno, usa, ulysse nardin, valex, verity, vertex, veteka, vogue, waltham, warwick, wenger, westar, winegartens, wittnauer, x, Xonix, yema, yeoman, yess, ysl, zales, zeitner, zodiac, sst, seawolf, seadweller, submariner, polaris, daytona, cosmograph, paul newman, steve mcqueen, navitimer, speedmaster, seamaster, planet ocean, super ocean nos, Horological Mechanical, Escapements, ladies moonphase, integrated module modular, tourbillon column wheel wilsdorf