« 2020
2022 »
Janvier
Février
Mars
Avril
Mai
Juin
Juillet
Août
Septembre
Octobre
Novembre
Décembre
Tout
- Upright Piano Action
Ky, is the Key in its resting position. c, wherever found, represents a cushion of felt or soft leather upon which the different parts of the action rest or come in contact with each other. Their purpose, as is readily seen, is that of rendering the action noiseless and easy of operation. Bnc R, shows the end of the balance rail, extending the entire length of the keyboard. B P, is the balance pin. This is a perfectly round pin driven firmly in the balance rail. The bottom of the hole in the key fits closely around the balance pin; at the top, it is the shape of a mortise, parallel with the key, which allows the key to move only in the direction intended. The mortise in the wooden cap on top of the key at this point is lined with bushing cloth which holds the key in position laterally, and prevents looseness and rattling, yet allows the key to move easily. - Queen Mary's Harp
This venerable instrument, the least impaired Gaelic Harp existing, is known as Queen Mary's Harp. It is small, being only 31 inches high and 18 inches from back to front. It was played resting upon the left knee and against the left shoulder of the performer, whose left hand touched the upper strings. The comb is from 2½ to 3¼ inches high. It is inserted obliquely in the sound chest, and projects about 14 inches. - Lamont Harp
The extreme length of the Lamont Harp is 38 inches, and the extreme width 18½ inches. The sound chest, as with other ancient harps, is hollowed out of one piece of wood, but the back has been in this instrument renewed, although probably a long time ago. The sound chest is 30 inches long, 4 inches in breadth at the top, and 17 at the bottom. The comb projects 15½ inches. The broken parts of the bow are held together by iron clamps. - Action of the Square Piano
A. Action Frame. B's Indicate the Cushions, or Bushing, of felt, cloth or leather. C. Balance Rail. D. Balance Pin. Round. E. Mortised Cap for Balance Pin. Bushed. F. Key. G. Lead. H. Back Check. I. Bottom or Key Rocker. J. Bottom Screws; used to regulate height of Jack. K. Jack. L. Jack Spring; concealed under Bottom. M. Center Pin to Jack. N. Hammer Rail. O. Regulating Screw. P. Regulating Button. Q. Flange Rail. R. Flange. Split. S. Flange Rail Screw. T. Flange Screw, to regulate jaws of flange. U. Hammer Butt. V. Center Pin. W. Hammer Stem or Shank. X. Hammer Head. Y. Hammer Felt. Treble hammers sometimes capped with buckskin in old instruments. - Action of the Grand Piano
1. Indicates the felt, cloth or leather, upon which the various parts of the action rest, or fall noiselessly. 2. Key. 3. Bottom; sometimes called Key Rocker. 4. Extension; split at lower end to receive center pin in Bottom. 5. Wippen Support. 6. Jack. 7. Jack Spring. 8. Flange and Regulating Rail. 9. Regulating Screw, Button and Cushion. 10. Escapement Lever. 11. Regulating Screw in Hammer Flange, for Escapement Lever. 12. Check Wire, for Escapement Lever. 13. Screw to regulate fall of Escapement Lever. 14. Lever Flange, screwed to Flange Rail. 15. Hammer Shank. 16. Hammer. 17. Back Check. 18. Damper Lever, leaded. 19. Damper Wire, screwed into upright. 20. Damper Wire Guide, fastened to Sound-Board. 21. Damper Head and Felt. 0. Center Pins. Holes lined with Bushing Cloth.