Ads
related to: brasscraft valve repair kit
Search results
Results from the WOW.Com Content Network
The first of these types was the Stölzel valve, bearing the name of its inventor Heinrich Stölzel, who first applied these valves to the French horn in 1814. Until that point, there had been no successful valve design, and horn players had to stop off the bell of the instrument, greatly compromising tone quality to achieve a partial chromatic scale.
The oil also completes the seal between the valve casing and the piston or rotor. Although a clean and unoiled valve of a well maintained instrument should move without unusual force, the inside of a musical instrument is a very inhospitable environment for a delicate valve mechanism. The musician constantly blows warm moist air through the valve.
This page was last edited on 11 September 2010, at 09:09 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Turning a valve knob or lever adjusts flow by varying the aperture of the control device in the valve assembly. The result when opened in any degree is a choked flow . Its rate is independent of the viscosity or temperature of the fluid or gas in the pipe, and depends only weakly on the supply pressure , so that flow rate is stable at a given ...
Islamic Golden Age brass astrolabe Brass lectern with an eagle. Attributed to Aert van Tricht, Limburg (Netherlands), c. 1500.. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, [1] but copper typically has the larger proportion, generally 66% copper and 34% zinc.
With more than 260 peaks over 3,000 meters, hiking trails through remarkable forests and epic surf churned up by waves that roll unimpeded across the Pacific, Taiwan is a nature lover’s dream ...
Ads
related to: brasscraft valve repair kit