Jack Spring punchings

[John Delacour]

At 16:36 +0100 4/10/07, david at piano.plus.com wrote:

>Do most people here glue jack springs in place in the wippen?

It depends on the design of the action.  The shorter actions, with 
the shorter spiral spring, are not designed to be glued and the 
spring won't fall out, but the tall levers with the long spring are 
meant to be glued into the lever body and will otherwise fall out 
when the action is taken apart, and that's the only reason for doing 
it, but they were glued in originally.  I'm speaking of German and 
French actions.  Of five upright actions I have on the go at the 
moment only one ( an unsigned action, probably Langer) has the short 
spring without the glued-in bottom.  Of American practice I have very 
little knowledge but a Steinway and a Sohmer I have both glued down 
the spring.

JD