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  1. Galleries
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  4. » Turkish railway onion

 
Turkish railway onion...

OGGETTI

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Turkish railway onion sent on March 25, 2020 (12:41) by Jacopo Pasqualotto. 20 comments, 739 views. [retina]

at 70mm, 1/8000 f/3.5, ISO 3200, hand held.

Ho riparato un'orologio acquistato nel 1989 da un russo: è il cipollone che veniva dato in regalo ai dipendenti delle ferrovie turche al pensionamento. Dopo una caduta da tre metri di altezza su una lastra di marmo, si era fermato il bilancere. Mi diverto a smontare e rimontare i miei vecchi Nikon AI, e quando lo faccio mi sembrano meccaniche già abbastanza complesse, ma qui la faccenda si fa ben più tosta: ci sono vitine superpiccolissime e tolleranze VERAMENTE infinitesimali. Gli alberi degli ingranaggi sono montati su sedi in rubino, e la molla del bilancere è estremamente delicata. Per capire come funzionasse e spinto dalla curiosità l'ho smontato in parte, togliendo tutte le parti con i rubini ed anche la grande ruota dentata della molla di carica per scaricare le tensioni sui meccanismi, ispezionando, pulendo e lubrificando i particolari rivelati. Nel mio caso l'urto violento aveva torto leggerissimamente il ponte del bilancere, disassandone il perno di qualche infima frazione di mm e, sfortunatamente, togliendolo ne avevo danneggiato la molla, facendole assumere una forma assai lontana dall'originale. Con moooooooooooooolta pazienza l'ho ripristinata com'era e dov'era e, una volta corretta la torsione del ponte - è bastata una leggera pressione col cacciavite su un fianco contrastando dall'altro con una forza uguale ed opposta - il cipollone è tornato a marciare con la sua originale precisione. Foro eseguita con la D200 e lo zoom Tokina alla posizione macro... avevo provato con il 55 micro f 3.5, ma il Tokina mi regala più atmosfera old-time, aiutato dalla grana degli iso alti.



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avatarsenior
sent on March 25, 2020 (13:26) | This comment has been automatically translated (show/hide original)

Nice work, congratulations.
Hello, Alexander

avatarjunior
sent on March 25, 2020 (13:34) | This comment has been automatically translated (show/hide original)

Fantastic, he thinks I've been trying to watch for a long time when I retire, but... after reading you I understand that it is not at all simple....
How much is a good guy for trying and a reward for being able to :-D :-D :-D
A greeting, Marcello

avatarsenior
sent on March 25, 2020 (16:29) | This comment has been automatically translated (show/hide original)

Thank you all. Now I'm going to go with my grandmother's alarm clock. should be simpler ! :-D

avatarsenior
sent on March 25, 2020 (23:14)

Bella foto e interessante descrizione..stima x la tua passione per gli oggetti con una storia,le tue capacità nel sistemarli e/o esaminarli e le tue foto che lo raccontano..Paolo

avatarsenior
sent on March 26, 2020 (0:08) | This comment has been automatically translated (show/hide original)

You're: techno-gold-photo-electro-stereo-valvo-graph.
8-)
Forgot something?
;-)
P.S. but you took the photo before or after the repair???
:-P

avatarsenior
sent on March 26, 2020 (13:53) | This comment has been automatically translated (show/hide original)

Curse! It still slows down in certain positions ... I'm not as cool as I thought 8-). And there are no spare parts for the scale spring.
photo made after repair.
Thanks Uccio88, but I'm not as tough as I thought.....

avatarsenior
sent on March 26, 2020 (14:51) | This comment has been automatically translated (show/hide original)

There's one thing I had done when I was a kid, it is called:
Sincerory
At the time there were only mechanical clocks that, of course, were not very precise so, after careful detections on delay or advance (made on the basis of the exact time broadcast on radio or TV, the famous twittering of the nightingale) he took the watch from the watchmaker saying: go two minutes in twenty-four hours).
He held him for a few days to record it and to check its accuracy.
When you brought him home punctually he was delayed by two minutes in twenty-four hours !
Tho the rule is:
e if something does not work with extreme precision, except in serious cases, do not touch anything because otherwise you can do more damage!
:-D :-D

avatarsenior
sent on March 26, 2020 (15:17) | This comment has been automatically translated (show/hide original)

@Jacopo - if the bilazier and its spring have deformed, there is no way: do not put it back in place, except by changing spring and barbell....
e the slowdown is minimal and fairly constant, you can act on the adjustment by testing and noting the scrap every 24 hours with the sample clock (there are radios controlled now... you no longer need to connect to sample radio stations).

avatarsenior
sent on March 26, 2020 (15:19) | This comment has been translated

MrGreen

avatarsenior
sent on March 26, 2020 (16:55) | This comment has been automatically translated (show/hide original)

Spring and bridge of the scales obviously warped both ..... :-D The bridge's fine.
Now I'm tiring by trying with 2 tweezers to which I milled the ad hoc tips to put the spring back on track....

avatarsenior
sent on March 26, 2020 (17:14) | This comment has been automatically translated (show/hide original)

However I go, I'm:
1) learning a lot
2) having a lot of fun
3) training my hands with precise movements
4) bring TANTA patience and do not throw clock, spring and scale out the window :-D

avatarsenior
sent on March 26, 2020 (17:59) | This comment has been automatically translated (show/hide original)

Well... even if it doesn't work it's always a nice object to keep and photograph...
8-)

avatarsenior
sent on March 26, 2020 (21:49) | This comment has been automatically translated (show/hide original)


avatarsenior
sent on March 26, 2020 (22:21) | This comment has been translated

Bravo!

avatarsenior
sent on March 26, 2020 (23:10) | This comment has been automatically translated (show/hide original)

Great.
I'm going to make it??
:-D

avatarsenior
sent on March 26, 2020 (23:17) | This comment has been automatically translated (show/hide original)

It's almost time to sleep :-D
Just Adobe Premiere finishes its comforts, I ship to customers and go to sleep.
In the meantime I look smugly at the swing scale.... ;-)

avatarsenior
sent on March 27, 2020 (0:20) | This comment has been automatically translated (show/hide original)


avatarsenior
sent on March 27, 2020 (16:51) | This comment has been automatically translated (show/hide original)

ULTRAMACRO (speed calibration phase ... )
[IMG2]3530614[/IMG2]
Ecco a super macro with the Micro Nikkor 55 f 3.5 th PK-13 - 10x and 4x superimposed close-up lenses. You can see the red rubies that act as the upper seat for the trees of scale and escapement, the spring that I put back in shape with so much effort and the ultra-superming vitine that keeps it sympathetic with the bridge, to unscrew which I had to specially mill a screwdriver. The toothed wheel that you notice on the left is the one that transmits the motion to the hands of the dial. The 2 cut screws that sprout from under the scales hold the castelletto in which is embedded the ruby that serves as the upper seat of the anchor shaft; below is the lower ruby of the scale shaft. Touch something wrong in here and you're in trouble..... I know that; )

avatarsenior
sent on March 27, 2020 (16:58) | This comment has been automatically translated (show/hide original)

To calibrate the time, use a radio-controlled clock. Every 24 hours exactly, note the scrap on a piece of paper... after a few days you understand in what sense and how much to move the adjustment.

avatarsenior
sent on March 27, 2020 (17:41) | This comment has been automatically translated (show/hide original)

Ok thank you. Sounds good. I've got my wrist that's going to get from the satelite. I'm going to do it with that.....




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