Internet Horology Club 185
what kind of escapement is this?

This topic can be found at:
https://ihc185.infopop.cc/eve/forums/a/tpc/f/3426047761/m/3453978487

March 16, 2015, 21:41
Todd Verriere
what kind of escapement is this?
hi everybody,
i bought this old watch off of Jon Hart because i thought it looked like an interesting watch. Boy was i right!
checked the balance, yep, broken staff. pulled the balance out looked at the escape wheel and saw the pallet fork was missing. then realized there isn't even a place to mount a pallet fork, what????
so now i am really having fun, seriously.
took a real good look at the balance staff and figured out the escape wheel and balance are the escapement.
no pallet fork!
too cool!!
what the heck is this called? and can it be repaired?
i think i'm in love
Todd


March 16, 2015, 22:03
Bila Wirriganwalters
A Swiss cylinder escapement Todd where the escape wheel engages directly into the balance. No pallet fork needed.

Cheers.
March 16, 2015, 22:35
Todd Verriere
thanks Bila,
now on to the big question, is this fixable? i can't even find a name on the watch.
March 17, 2015, 08:06
Bila Wirriganwalters
Definitely fixable, damaged cylinders are replaceable, albeit different technique and tools compared to normal American watch. Hardest tasks are the staff replacement and then ensuring you get the watch into beat. Most people do not like working on these as you will need more patience to learn the correct ways. You will probably get told that these are not great timekeepers but I have seen them regularly keep time within a minute or so over a week.
March 17, 2015, 12:38
David Abbe
Todd, This design was popular among the Swiss in the 1870's for reasons known to no one but them! The un-repairable nature of this design certainly helped the USA RR watch specs along to EXCLUDE Swiss-made watches from certification.

As Bila explained, "Cylinder" (cases marked 'cyl[i]ndre') escapement movements are not popular to repair because there are many steps to a successful "fix". For a beginner watch repair person I reckon the odds of success are ZERO.

Save it for a paperweight and go on with the easier to deal with stuff.
March 17, 2015, 14:51
Jon Hart
Todd,

Glad the watch and movements made it up North. I believe I put a couple of extra movements in there for you to "tinker" with. Especially, for learning the find art of "tinkering" with the hairspring (removal/installation - w/o damaging the collet or coils), removing the roller table, and balance staff itself. The best way to learn is on those free movements. Good luck
March 17, 2015, 16:45
Todd Verriere
hi guys,
David,
i am going to take your word for it that this is beyond me for now. but it is something to shoot for.

Jon,
please do not in any way feel that i am unhappy with this purchase. this watch fascinates me and is part of my education. not to mention you threw in two free movements for me to play with. i have taken the free betsy ross you sent me apart and reassembled it twice just for practice. i have the roller table and pallet fork soaking in alcohol right now so i can remove her jewels and then practice shellacking them back in. just received my combination tool and alcohol lamp and fresh shellac and can't wait to practice this.

if i found the broken balance pivot inside the cylindre watch, could i stick it back on to the staff with my arc welder? Big Grin Big Grin
thanks guys
i'm having a blast
todd
March 17, 2015, 17:17
Jon Hart
Excellent / i am just glad we have found someone who loves to tinker...
March 17, 2015, 17:30
David Abbe
SAME HERE! Wink
March 17, 2015, 18:02
Paul J. Williams
The S.la rose co. (now gone ) sold roughed in pivot plugs for repair . I may have a bag of asstd. I'll let you know if I find them.
March 17, 2015, 18:40
Paul J. Williams
What I have are pivot caps, these likely wont help you.


March 17, 2015, 19:21
Todd Verriere
i don't know Paul,
if you look at the pic at the top of this post they kinda look right. David would know.
meanwhile, i am going to measure the diameter of the base of my broken one.
i'll be right back!
so excited!!!
todd
March 17, 2015, 20:12
Todd Verriere
hi Paul.
so, i found i could not measure the diameter of the broken balance pinion while still mounted in the staff. so i made a tool.
i would like to introduce the "canadian made swiss cylinder escapement broken pinion remover tool" a rather specialized tool, but when you need it you will be happy you have it!
made it from the finest sewing needle my wife had.


March 17, 2015, 20:13
Todd Verriere
i got so excited i couldn't find my balance tack, so i threw that together too.
i reached inside the cylinder with my fancy new tool and pushed the broken pinion out.


March 17, 2015, 20:14
Todd Verriere
worked like a charm!
here is the broken pinion!


March 17, 2015, 20:17
Todd Verriere
and no damage to the pinion mount that i can see.
i haven't measured the broken pinion yet.
need a break.
but feeling pretty pleased right now.
thanks everybody,
back soon
todd


March 17, 2015, 20:49
Todd Verriere
hi Paul,

took some work, but got it into my caliper.
the base is .80 mm


March 17, 2015, 21:35
Jon Hart
Todd,

Have a tube marked pivot caps. These are roughly .85 mm in thickness

If you think they will work can send you a couple Smile

Does the staff (pivot cap as a possible fix) just pop into the little basket looking "thing"?


March 17, 2015, 21:48
Todd Verriere
hi Jon,
keeping in mind that i trust Davids assessment that the odds of me getting this movement working are zero, i would love to try.
so yes, i would love to have them, but i think the bases are too long. (see mine) but i would file them down and love them and do my best to make it work.
still, i think Pauls' look more like what i need
i sent you an email, re: the second hand. let me know. i will never use it.

todd
March 17, 2015, 21:52
Jon Hart
Todd,

You know - I think you will get that movement running...

Don't doubt yourself, that's what haters are for!
March 17, 2015, 22:04
Todd Verriere
the staff looks like it was staked into the "basket looking thing" there are 3 notches along the rim of the "basket"
you can see in this pic where a staking punch has hit it


March 17, 2015, 22:19
Todd Verriere
i have never in my life doubted myself Jon.
but i accept that the odds of me fixing this are very low.
nevertheless i must try.!!
if i had accepted the odds of the prettiest girl in school saying yes to me,
i never would have tried. but i did.
and we have been married for 33 years.
and i love her more today than i did yesterday.
i can't help myself, i love a challenge! always have.
i want to try to make this run.
todd
P.S.
what did you think of my homemade tool?
March 17, 2015, 22:49
Roger Stephens
Todd,I just want to commend you on your exsuberance.I look forward to your posts and your
continuing adventures.
Regards
Roger
March 18, 2015, 00:31
David Abbe
So do I. Get a small Arkansas stone to work the pivots.
http://www.sharpeningsupplies....PrP84B3BtRoCO87w_wcB


March 18, 2015, 02:38
Peter Kaszubski
Todd my motto is
"If they can do it so can I".
March 18, 2015, 04:09
Paul J. Williams
I'll try to measure mine soon and let you know.

Make way for a good fit, no distortion. The cylinder should be hard tempered, making it fragile.
March 18, 2015, 11:28
Paul J. Williams
The largest in my asst .76
March 18, 2015, 16:46
Todd Verriere
hi Paul.
i believe Jon is sending me a couple of .85mm but i would like a couple of your .76mm as well. i want to cover my bases.
how much would you want for them?
Todd
March 18, 2015, 17:00
Todd Verriere
thank you to everyone for your support and encouragement.
tinkering with these watches would quickly become boring without you.
i would get stuck and frustrated.
yet, when i ask for help you are there to offer me support and advice.
that is what makes this fun for me.
i truly appreciate you all.
thank you
todd
March 19, 2015, 02:48
William D. White
Todd,

I like your homemade canadian made swiss cylinder escapement broken pinion remover tool. It looks just like the Presto model 10 precision pointy-poker. :0)

William