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Publication of BE675169ApublicationCriticalpatent/BE675169A/xx
B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
E—FIXED CONSTRUCTIONS
E04—BUILDING
E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
E04G21/08—Internal vibrators, e.g. needle vibrators
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Engineering & Computer Science
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Mechanical Engineering
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Architecture
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Civil Engineering
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Structural Engineering
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Underground Or Underwater Handling Of Building Materials
(AREA)
On-Site Construction Work That Accompanies The Preparation And Application Of Concrete
(AREA)