The pneumatic player, the regulation and repair of some modern types . The Triumphodist. tracker bar is liable to pack the dust or fibrousmatter in the small ducts.) The two narrow ducts are for accenting bassand treble. The large square duct at bass end isthe automatic damper. The primary valves areeasily accessible after removing the step, heldin place by about thirty-eight screws. Thesecondary valves are immediately beneath andtheir pouch board is about five inches wideheld by about twenty-eight screws. The loudlever is purely mechanical and lifts the damperrod by wires and levers. The soft
The pneumatic player, the regulation and repair of some modern types . The Triumphodist. tracker bar is liable to pack the dust or fibrousmatter in the small ducts.) The two narrow ducts are for accenting bassand treble. The large square duct at bass end isthe automatic damper. The primary valves areeasily accessible after removing the step, heldin place by about thirty-eight screws. Thesecondary valves are immediately beneath andtheir pouch board is about five inches wideheld by about twenty-eight screws. The loudlever is purely mechanical and lifts the damperrod by wires and levers. The soft bass andtreble buttons admit air, when pressed, topouches in two small chests at bass andtreble sides of the piano. These operate valvesand collapse two pneumatics, which lift the ham-mers to the half blow. The whole mechanism is THE TRIUMPH-AUTO. 0 (S) v.^ e Cap of Triumphodist Expression Box(Dotted lines indicate concealed air channels) Con^;enient and easily adjusted. The only move-ment which perhaps calls for a little extra thoughtis the triumphodist It is operated in the follow-ing manner and is the subject of my sketch. When the triumphodist switch is pushed to the on position, the tubes A are closed and theprimary valves (B) are at rest, admitting air tothe secondary pouches (C). This raises bothaccenting valves (D), and the whole power of thepedalling passes through the governing pneumatic(E). This governor is held open by a spring, whichof course is far less powerful than the reservoirsprings. As the marginal holes on the roll, when lO THE PNEUMATIC PLAYER solo is indicated, admit a pulse of air down thetracker tubes (F), the primary valves are instantlylifted, bringing the secondary pouches undervacuum. The valves (D) are drawn down andopen the full power of wind from either the bassor treble section of the valve ches
Size: 1663px × 1503px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidpneumaticpla, bookyear1921
