Throwing block
The throwing block is a typical professional tool of the organ builder .
Physical basics
The reed of a lingual or reed whistle in the upstroke construction receives a specific swing from the voicer depending on experience and country so that it does not lie flat on the throat and it only closes the air outlet. The tongue really has to unwind on the throat when it sounds in order to achieve a round and usable tone.
Design
A throwing block is a rectangular, finely sanded piece of hardwood with a curved upper edge. Alternatively, the throw-up block can also be made of polished steel. The use of wood prevents wear and tear or damage to the polishing steel .
use
In order to create the momentum in the reed, the voicer places the spring-hard reed on the throwing block and strokes the reed a few times with the semicircular side of a highly polished steel from the base to the end. In doing so, he exerts a certain amount of arm and hand pressure on the handle or the steel of the polishing iron itself. As an alternative to a throwing block, tongue intonators only use a flat, polished steel plate and gain the throwing-up purely by applying a modified pressure when stroking the tongue.
These procedures usually require years of experience as a tongue intonator. To learn this special activity, courses for specialists are always offered.
Web link
- Change of the throwing up of a tongue using a throwing up block on Youtube
See also
Individual evidence
- ^ A b Johann Gottlob Töpfer , Paul Smeets: Textbook of organ building art . Rheingoldverlag, Mainz, Vol. 2, 1957, p. 213.
- ↑ Specification example with illustration of the use of a throw-off block , accessed on May 6, 2017 (PDF).