[pianotech] Kohler & Chase

Bruce Browning - The Piano Tuner justpianos at our.net.au
Thu May 7 03:13:49 PDT 2009


David,
Any photos?


> Something I've not run into before...Kohler & Chase upright, #77139.
> Some sluggish hammers...found it was missing the hammer return spring.   I
> looked some more and discovered no hammer return springs?   Looked some
> more and realized the hammer return spring rail was metal and pivoted.   A
> slider on the bass cheek block could move the springs against the hammer
> butts in different degrees...i.e. change the touch.   The springs were
> straight medal wire with no curved end as usual.   Pretty cool...
> David Ilvedson, RPT
> Pacifica, CA 94044
>





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