Pianotech

Back to Library

The Dulcitone 

07-09-2015 09:23

Here are more Workshop photos of the Dulcitone in bits! These latest photos are centred on Keys, Hammer assemblies and their relation to each other - i.e. how they work together in this strange keyboard.

Statistics
0 Favorited
7 Views
8 Files
0 Shares
155 Downloads

Related Entries and Links

No Related Resource entered.
​
Attachment(s)
Download All
JPG file
The Dulcitone - underside of keys   1.38 MB   1 version
Uploaded - 07-09-2015
Keys on workbench in process of being cleaned and put in keyframe. Note the long 'L' shaped spring steel 'Jack'. These keys are very short, terminating just the tail side of the balance chaser. There is a 'spring assist' seen later:
 
Download
JPG file
The Dulcitone - some keys on the keyframe   1.29 MB   1 version
Uploaded - 07-09-2015
Here we see the front of the keyframe and under the front rail are the spring-assisted hammer butts. The strong helical spring is captive in both Butt and front rail
 
Download
JPG file
The Dulcitone - Keyframe with some naturals and sharps in...   1.25 MB   1 version
Uploaded - 07-09-2015
The red felts seen below the sharp key fronts are attached to the hammer butt and are the notch - actuated by the long 'L' shaped 'Jack' attached to the key
 
Download
JPG file
The Dulcitone - Sharps in situ   1.25 MB   1 version
Uploaded - 07-09-2015
The strong helical spring pulls the key back to playing position on key release
 
Download
JPG file
Hammer assembly   1.12 MB   1 version
Uploaded - 07-09-2015
The relative position of the key and hammer assembly. Notice the spring dangling from the key tail which is pinned to the balance rail. This is a substitute for the truncated portion of the key tail.
 
Download
JPG file
hammer butt   1.10 MB   1 version
Uploaded - 07-09-2015
The relative position of the front of the key and hammer butt. The heavy helical spring locates in the hammer butt and the underside of the front rail. Its purpose is to help return the hammer to playing position
 
Download
JPG file
The Dulcitone - Action Train (1)   1.11 MB   1 version
Uploaded - 07-09-2015
Shows the key and hammer assembly in 'exploded' relative position. Notice the long 'L' shaped length of spring which is the 'Jack' in this Dulcitone
 
Download
JPG file
The Dulcitone - Action Train (2)   1.15 MB   1 version
Uploaded - 07-09-2015
Similar to previous photo - to show the 'L' spring 'Jack' in better relief.
 
Download