| 摘要 |
<p>An adjustable or variable frequency vibration damper comprising spaced masses of material spaced by spring or elastomeric material, means for mounting the damper, and fastening means adjustably securing the masses together to permit the masses to be adjustably moved towards one another compressing the spring or elastomeric material, or away from one another decompressing the material thus altering the frequency of the damper.</p> |
