公开(公告)号：US4037508A

公开(公告)日：1977-07-26

申请号：US701951

申请日：1976-07-01

申请人： John W. Wolford

发明人： John W. Wolford

IPC分类号： G10D13/00 ,  G10D13/02

CPC分类号： G10D13/021

摘要： This invention relates to the musical drum art, and particularly to the orchestra snare drum and/or marching snare drum. The device compresses the moving air column produced when the batter head is struck, and directs the vibrating column to the proper area for maximum snare effect, livelier feel and sound, with far greater power and projection. This device brings the entire batter head to life, making it playable in all areas of its surface by eliminating the dead spots usually found in the center and around the edge of the head.

摘要翻译： 本发明涉及音乐鼓艺术，特别涉及乐团小鼓和/或行军小鼓。 该装置压缩当打击头被击打时产生的移动空气柱，并将振动柱引导到适当的区域，以获得最大的圈套效果，更有活力的感觉和声音，具有更大的功率和投影。 该装置使整个面糊头部保持生命，使其在表面的所有区域都可以消除通常发现在头部中心和周围的死点。

公开(公告)号：US4377268A

公开(公告)日：1983-03-22

申请号：US171739

申请日：1980-07-24

申请人： John W. Wolford

发明人： John W. Wolford

IPC分类号： G10G5/00 ,  A45D19/04

CPC分类号： G10G5/00

摘要： The present invention is used in conjunction with a musical instrument having a bell including a tapered inner surface, an upper end and a lower end. The stand includes a round disc having upper and lower surfaces, and a side surface formed from an elastomeric material. The side surface gradually tapers inward between the lower and upper surfaces of the disc. The diameter of the lower surface of the disc is slightly greater than the diameter of the inner surface of the lower portion of the bell of the musical instrument. The dimensions of the disc and the inclination of the side surface of the disc cause the disc to exert a frictional locking force between the side surface of the disc and the bell of the musical instrument to maintain the musical instrument in a fixed position with respect to the disc. A base is coupled to the disc and maintains the disc in a level position.

摘要翻译： 本发明与具有钟形的乐器一起使用，该钟形件包括锥形内表面，上端和下端。 支架包括具有上表面和下表面的圆盘和由弹性体材料形成的侧表面。 侧面在盘的下表面和上表面之间逐渐变细。 盘的下表面的直径略大于乐器的钟形下部的内表面的直径。 盘的尺寸和盘的侧表面的倾斜导致盘在盘的侧表面和乐器的钟之间施加摩擦锁定力，以将乐器相对于 光盘。 基座连接到盘并将盘保持在水平位置。

公开(公告)号：US4178829A

公开(公告)日：1979-12-18

申请号：US909057

申请日：1978-05-24

申请人： John W. Wolford

发明人： John W. Wolford

IPC分类号： G10D9/00 ,  G10D9/06

CPC分类号： G10D9/06 ,  G10D9/00

摘要： A power tube is attachable within the bell end of a flared bell musical instrument for improving the musical sound of the instrument and for making the instrument easier to play. The power tube includes a hollow tubular member having a central axis aligned with the central axis of the instrument and including first and second open ends. The first end of the member forms an air tight seal with the interior of the instrument at a point just prior to the point where the flare of the bell of the instrument commences its rapid, outward sweep. The power tube includes a pair of diametrically opposed vents positioned near the first end.

摘要翻译： 功率管可以安装在喇叭铃乐器的喇叭口内，用于改善乐器的音乐声音和使乐器更容易播放。 功率管包括具有与仪器的中心轴线对准并包括第一和第二开口端的中心轴线的中空管状构件。 成员的第一端在仪器的喇叭口的快速向外扫掠之前的点之前形成与仪器内部的气密密封。 功率管包括位于第一端附近的一对直径相对的通气孔。