Organ-stops and their artistic registration : names, forms, construction, tonalities, and offices in scientific combination . ral ofRiga; and on the Third Manual of the Organ in the Cathedral ofUlm. Both stops are of 8 ft. pitch. In the well-known Organ in theCathedral of Lucerne, the Physharmonika, 8 ft., is placed in theSwell. In the Organ in the Cathedral of Fribourg, in Switzerland,there are Physharmonikas, of 16 ft. and 8 ft. pitch. The stops inboth the Lucerne and Fribourg Organs we personally examined,accompanied, in Lucerne, by F. Haas, the organ-builder who in-serted them: accordingly
Organ-stops and their artistic registration : names, forms, construction, tonalities, and offices in scientific combination . ral ofRiga; and on the Third Manual of the Organ in the Cathedral ofUlm. Both stops are of 8 ft. pitch. In the well-known Organ in theCathedral of Lucerne, the Physharmonika, 8 ft., is placed in theSwell. In the Organ in the Cathedral of Fribourg, in Switzerland,there are Physharmonikas, of 16 ft. and 8 ft. pitch. The stops inboth the Lucerne and Fribourg Organs we personally examined,accompanied, in Lucerne, by F. Haas, the organ-builder who in-serted them: accordingly, we are able to describe the stops. In theOrgan in the Cathedral of Magdeburg there is an 8 ft. stop of similardescription, labeled Harmonium. Formation.—The best examples of the Physharmonika to be found inmodern European Organs have been made by J. & P. Schiedmayer of Stuttgart,through whose courtesy we are able to give an illustration showing the formationof the stop. Fig. 29 is a Transverse Section of the complete appliance in its mostimproved form. A is the chamber into which the compressed pipe-wind is con-. Fig. 29 ducted by a suitable wind-trunk or conveyance. This chamber is connectedthrough the opening D, with the bellows B, which, together with the chamber A,forms the compressed-air reservoir. The bellows B is acted on by the spiral springC, which properly regulates the wind-pressure at all times on the many is a small escape-valve, held against its port by a light spring. A LongitudinalSection of a free tongue or vibrator with its brass frame is shown at F; and its14 210 ORGAN-STOPS tuning-clip and wire are shown at G. The wire passes air-tight through the sideof the chamber A, to enable the tuning to be done from the outside. H is the reed-groove special to the vibrator F, furnished with the pallet-hole I. J is the pallet,covering the hole I, and commanded by the key-action of the Organ through theagency of the rocking-lever K and the pull-wire L. The
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectorganmu, bookyear1921
