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What brand uprights have accelerated action? #2444529
07/25/15 08:07 PM
07/25/15 08:07 PM
Joined: Oct 2014
Posts: 274
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DeadPoets Offline OP
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DeadPoets  Offline OP
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Joined: Oct 2014
Posts: 274
Generally speaking can you guys name some brands that have historically made uprights that have a quick action?

I currently have a Kawai console model with pretty damn slow action.

I've read about Steinway's accelerated action. Is that on their grands only? If not, does it include their older Steinway models and Boston & Essex brands?

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Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444540
07/25/15 09:12 PM
07/25/15 09:12 PM
Joined: Aug 2001
Posts: 625
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Ed A. Hall Offline
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Ed A. Hall  Offline
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Joined: Aug 2001
Posts: 625
The Fandrich & Sons equipped with Fandrich vertical action

Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444544
07/25/15 09:27 PM
07/25/15 09:27 PM
Joined: Jun 2003
Posts: 27,801
Oakland
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BDB Offline
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Joined: Jun 2003
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Oakland
Old Mason & Hamlins. However, the original repetition springs have usually collapsed and it is hard to replace them.


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Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444627
07/26/15 12:18 PM
07/26/15 12:18 PM
Joined: Dec 2012
Posts: 5,342
Seattle, WA USA
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Ed McMorrow, RPT Offline
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Seattle, WA USA
The old Steinway uprights with the designation; "Vertigrand" has the string plane tilted slightly back from vertical. This allowed for a more favorable center of gravity, (CG) on the hammer butt assembly towards returning the hammer from the string. They also had very light hammers which helps the CG issue.

In the late 1940's and early 1950's both the American action makers Pratt-Read and Woods and Brooks made what I call a "pusher jack" action. The hammer CG was very good for return. Piano makers put them in small consoles which didn't do much to help serious pianists. These pusher actions had to be more expensive also. I have one in an Everett console that has the damper action separate from the hammer action. Unfortunately the scale design of the Everett is poor and getting it to top performance would be a very expensive rebuild process. So it sits in my "museum".

I have done a couple of standard uprights where I use a tapered carbon fiber hammer shank which allows very narrow, (and thus light) hammers which then allows insertion of a small amount of solder into the catcher to serve as a counterweight whose position improves CG of the hammer. The shanks are expensive to make.


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Re: What brand uprights have accelerated action? [Re: Ed A. Hall] #2444693
07/26/15 05:06 PM
07/26/15 05:06 PM
Joined: Dec 2012
Posts: 2,087
California, USA
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musicpassion Offline
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California, USA
Originally Posted by Ed A. Hall
The Fandrich & Sons equipped with Fandrich vertical action
Also the Fandrich.


Pianist and Piano Teacher
Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444739
07/26/15 09:53 PM
07/26/15 09:53 PM
Joined: Jan 2010
Posts: 1,373
Queensland, Australia
backto_study_piano Offline
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backto_study_piano  Offline
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Joined: Jan 2010
Posts: 1,373
Queensland, Australia
No idea if this is the same thing (and I've never seen one) - but I read recently the PianoBuyer profile for SAUTER states:

"The larger verticals use an action, designed and patented by Sauter, that contains an auxiliary jack spring to aid in faster repetition. Sauter calls this the R2 Double Escapement action. (Although the term double escapement does not apply here as it has historically been used, the mechanism has some of the same effects.)"


Alan from Queensland, Australia (and Clara - my Grotrian Concert & Allen Organ (CF-17a)).
Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444740
07/26/15 09:56 PM
07/26/15 09:56 PM
Joined: Jul 2001
Posts: 15,534
Surrey, B.C.
Norbert Offline
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Surrey, B.C.
A well regulated piano.

A simple trick...

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Re: What brand uprights have accelerated action? [Re: DeadPoets] #2444764
07/27/15 12:01 AM
07/27/15 12:01 AM
Joined: Jan 2007
Posts: 7,439
torrance, CA
turandot Offline
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turandot  Offline
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Joined: Jan 2007
Posts: 7,439
torrance, CA
As mentioned by Backto Study Piano, Sauter's RR action is designed to accelerate action response using an extra spring. It's available on several 122 cm and 130 cm models, and I've heard from a couple of sources that it's actually installed in models that don't even charge a premium for it. The RR has been around for 50 years with some improvements along the way.

Seiler has an SMR (super magnet repetition) action which uses magnets that repel each other to accelerate key return. However, it's only available on their most expensive vertical (132 cm.) and it's a special order. The SMR has been around for 20 years.

I don't know if 20 years or even 50 years makes these actions historic, but they are super fast.


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