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#649380 - 07/15/02 01:17 AM Accelerated action on Steinway
StephenG Offline
Junior Member

Registered: 06/15/02
Posts: 9
Loc: New Mexico
Can someone tell me when Steinway first started using Accelerated Action on its grands? A friend is considering buying a 1926 D (rebuilt) and wants to know. My question, does it really make that much of a difference? Thanks very much.

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#649381 - 07/15/02 08:47 AM Re: Accelerated action on Steinway
Chris Aher Offline
Full Member

Registered: 05/31/01
Posts: 299
Loc: Brookfield CT

The patent (1,826,848) for the "accelerated action" was granted in 1931. No matter what the marketing types have trumpeted over the years, as a technician, I never thought that it made any apprecable difference one way or another.

#649382 - 07/15/02 11:56 AM Re: Accelerated action on Steinway
StephenG Offline
Junior Member

Registered: 06/15/02
Posts: 9
Loc: New Mexico
Hi Chris,

Thanks so much for the information; I'll pass it along.

#649383 - 07/15/02 07:38 PM Re: Accelerated action on Steinway
MikeC65 Offline
Full Member

Registered: 10/11/01
Posts: 325
Loc: St. Louis, Missouri
I'll second that. There is a picture of "accelerated action" on Steinway's web site. All it is, is a rounded balance rail bearing. My piano technician says it is just a gimmick. My 1910 Steinway K does not have it, and the action sure feels exactly the same to me as a new K-52. (Caveat: the action design of the original "K" is not the same as the modern "K-52").

Here is a quote of interest I found via a Google search:

"Steinway pianos are the beneficiaries of a group of patents called "Accelerated Action." The most salient aspect of Accelerated Action is the rounded balance rail bearing, which is in the shape of a semicircle. On other pianos, this part is composed of a compact pile of cardboard and felt circles (creating an upright cylinder shape). Steinway claims that the semicircle construction creates a situation in which the key is more inclined to return to rest position, making repetitions easier for the pianist. Whether or not it really makes a difference is questionable-- when I asked technicians about it, their initial reaction was always something akin to a scoff."
Mike Cohan
St. Louis, MO
1910 Steinway Model K


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