Heckel-clarina

The heckel-clarina, also known as "clarina" or "patent clarina", is a very rare woodwind instrument, invented and manufactured by Wilhelm Heckel in Wiesbaden-Biebrich, Germany. Heckel received a patent for the instrument on 8 December, 1889.cite book
last = Dullat
first = Günter
title = Klarinetten: Grundzüge ihrer Entwicklung
publisher = Bochinsky
year = 2001
location = Frankfurt am Main] It was apparently intended to be used for the shepherd’s pipe solo in Act III of Wagner's Tristan und Isolde. The heckel-clarina is a single reed, conical bore instrument made of metal, resembling a soprano saxophone. Two versions, one a transposing instrument in B♭ and one in E♭, were produced. According to Heckel's promotional materials, the heckel-clarina's tone resembled that of a cor anglais in its low register, a saxophone in the middle, and a clarinet in its upper range. The instrument is not to be confused with the heckelphone-clarinet, also a very rare conical bore single reed woodwind by Heckel but lower in pitch and made of wood.

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* [http://test.woodwind.org/clarinet/BBoard/download.html/1,908/Heckelclarina.jpgDiagram of heckel-clarina] , heckelphone-clarinet, and saxophone from 1931 Heckel catalog.