Hautboy by Thomas Lot | Michel Piguet Nr. 07 | |
Measurement by Mary Kirkpatrick |
Tone Hole Angles and Undercutting |
Head Joint Bore data | Middle Joint Bore Data | Tone Hole Size & Position |
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Bell Joint Bore Data | Kirkpatrick Measurement Home | ||
View Notes (also click on footnote number) | View Column Heading Descriptions |
Measurement |
Joint Type |
Hole ID |
Angle | Undercutting | Notes | |||
Lengthwise | Crosswise | Type | Depth | Angle | ||||
Lot, T. Measurer: Mary Kirkpatrick |
head | 1 | 2 ~100° | 1 ~90° | symmetric | 40% | 3 ~-10° | |
2 | 1 ~95° | 1 ~90° | symmetric | 50% | 3 ~10° | |||
3-L | 1 ~95° | 2 ~100° | symmetric | 100% | 3 ~5° | |||
3-R | 1 ~95° | 1 ~80° | symmetric | 100% | 3 ~5° | |||
middle | 4-L | 1 ~90° | 2 ~105° | symmetric | 60% | 3 ~15° | ||
4-R | 1 ~90° | 1 ~75° | symmetric | 60% | 3 ~15° | |||
5 | 1 ~90° | 1 ~90° | symmetric | 80% | 3 ~20° | |||
6 | 2 ~105° | 1 ~90° | symmetric | 90% | 3 ~15° | |||
Eb | 1 ~95° | 1 ~90° | upstream | 100% | 3 ~30° | |||
C | 1 ~95° | 1 ~90° | upstream | 100% | 3 ~30° | |||
bell | T-L | 1 ~90° | 1 ~90° | n/r | n/a | n/a |
Light undercutting to the sides |
|
T-R | 1 ~90° | 1 ~90° | n/r | n/a | n/a |
Note: | Numbers in boldface are taken directly from the drawing. | |
1 [value] |
Length- and Cross-wise tone hole angles are measured in reference to the axis of the bore (pointing down) It is a crude approxiamation based on a sketch of the tone hole angle (±10 ° or ±15 °) |
|
2 [value] |
Indicates that lengthwise tone hole angles were provided relative to the axis of the bore pointing up and were corrected to be relative to the bore axis pointing down (i.e. 180° - recorded value) |
|
3 [value] |
Undercutting angles are relative to the tone hole axis It is a crude approxiamation based on a sketch of the tone hole angle (±10 ° or &p lusmn;15 °) |
|
n/r | Indicates data not recorded | |
n/a | Indicates that this field is not applicable to this specific record. | |
tbd | to be determined, i.e. references and/or interpolations have yet to be worked out. |
Last Updated on 30 may 2002 | Copyright © Carl Burmeister, 2001-2002 |
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