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公开(公告)号：US5184412A
公开(公告)日：1993-02-09
申请号：US896278
申请日：1992-06-10
IPC分类号： E02F9/28
CPC分类号： E02F9/2866 , E02F9/2841
摘要： An elongated resilient retainer is positioned between an excavating tooth and tooth holder such that the tooth and tooth holder compress and, thus, deform the retainer to frictionally secure the tooth to the tooth holder. The resilient retainer includes ribs that extend longitudinally along its outer surface. These ribs are circumferentially spaced such that when the retainer is under compression, the ribs engage and grip the upper and lower edges of the tooth adjacent thereto. In this way, the area of surface contact between the resilient retainer and the surface between which it is compressed is augmented to more securely hold the tooth in the tooth holder.
摘要翻译： 细长的弹性保持器定位在挖掘齿和齿保持器之间，使得齿和齿保持器压缩并因此使保持器变形以摩擦地将牙齿固定到牙齿保持器。 弹性保持器包括沿其外表面纵向延伸的肋。 这些肋沿周向间隔开，使得当保持器处于压缩状态时，肋接合并夹紧与其相邻的齿的上边缘和下边缘。 以这种方式，弹性保持器与其压缩的表面之间的表面接触面积增大，以更牢固地将牙齿保持在牙齿保持器中。
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公开(公告)号：US4117617A
公开(公告)日：1978-10-03
申请号：US838135
申请日：1977-09-30
摘要： An adjustable sighting means for a firearm which a shooter can adjust to give the desired point of impact. An elongated rib is adjustably mounted on the gun barrel. The rib can be adjusted in the vertical direction so that the forward end of the rib has a greater vertical movement than the rear end of the rib. The effective pivot point of the rib is to the rear of the rib at a theoretical point which remains constant and is selected to be the position of an average shooter's eye when in shooting position.
摘要翻译： 用于枪支的可调节瞄准装置，射手可以调节以提供所需的冲击点。 细长肋可调节地安装在枪管上。 肋可以在垂直方向上调节，使得肋的前端比肋的后端具有更大的垂直运动。 肋的有效枢转点在理论点处位于肋的后部，理论点保持恒定，并且在拍摄位置被选择为平均射手的位置。
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