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1. 发明授权

US4135421A Quiet running circular saw blade 失效
标题翻译：安静的圆锯片
公开(公告)号：US4135421A
公开(公告)日：1979-01-23
申请号：US825867
申请日：1977-08-19
申请人： James T. Bertram , Steven A. Segal , Arthur R. Segal
发明人： James T. Bertram , Steven A. Segal , Arthur R. Segal
IPC分类号： B23D61/02 , B23D61/04 , B27B33/08
CPC分类号： B23D61/04 , B23D61/021 , Y10T83/9319 , Y10T83/936 , Y10T83/9365
摘要： A circular saw blade has block-like tooth tip inserts of hard metal, secured at circumferentially spaced intervals to the peripheral portion of a disc-like blade body having opposite flat side surfaces. The gullet in front of each insert, conventionally present in such a blade, is spanned in the circumferential direction, at least to a substantial extent, by a fixed thin wall, which can comprise a reduced thickness portion of the blade body, so that each gullet is thus defined by a sidewardly and radially outwardly opening cavity in a side surface of the blade, and the blade has a near-circular periphery. At the circumferentially rearward and radially inward portions of each cavity its edges are substantially bevelled to facilitate flow of cuttings out of the cavity.
摘要翻译：环形锯片具有硬质金属的块状齿尖插入物，其周向间隔地固定到具有相对平坦侧表面的圆盘状刀片体的周边部分。通常存在于这种叶片中的每个插入件前面的齿槽至少在一个固定的薄壁上至少在一个大的程度上沿着圆周方向跨越，该固定的薄壁可以包括叶片本体的厚度减小的部分，因此，齿形物由叶片的侧表面中的侧向和径向向外的开口腔限定，并且叶片具有近圆形的周边。在每个空腔的周向后部和径向向内的部分，其边缘基本上是倾斜的，以便于将切屑流出空腔。

2. 发明授权

US4137806A Silencing means for rotary cutting tools particularly circular saws 失效
标题翻译：旋转切削工具特别是圆锯的沉默装置
公开(公告)号：US4137806A
公开(公告)日：1979-02-06
申请号：US791175
申请日：1977-04-27
申请人： Arthur R. Segal , Jack E. Robertson
发明人： Arthur R. Segal , Jack E. Robertson
IPC分类号： B23D47/00 , B23Q11/00 , G10K11/16 , B27G19/02 , B23Q11/06
CPC分类号： G10K11/16 , B23D47/005 , B23Q11/0078 , B23Q11/0096 , Y10T83/7734
摘要： Noise output of a rotary cutting tool such as a circular saw blade is substantially reduced by means of a guard which wholly encloses the blade when the blade is not cutting and which comprises fixed and movable imperforate guard members, the movable guard member being movable to expose only the cutting segment of the blade. Inner surfaces of the flat side walls of the guard have sound absorbing means such as a Helmholtz resonator array or a layer of acoustical foam. Modifications of the guard to optimize its silencing effectiveness are disclosed.
摘要翻译：旋转切割工具（如圆锯片）的噪声输出通过在叶片不切割时完全包围叶片的防护件大大减小，并且包括固定和可移动的无孔防护构件，可移动的防护构件可移动以暴露只有刀片的切割段。防护罩的平坦侧壁的内表面具有诸如亥姆霍兹共振器阵列或声泡沫层之类的吸音装置。披露了防护罩的改进以优化其沉默效能。

3. 发明授权

US4995767A Face milling cutter with indexable inserts 失效
标题翻译：带可转位刀片的铣刀
公开(公告)号：US4995767A
公开(公告)日：1991-02-26
申请号：US502833
申请日：1990-04-02
申请人： Arthur R. Segal
发明人： Arthur R. Segal
IPC分类号： B23C5/20 , B23C5/24
CPC分类号： B23C5/2451 , B23C5/207 , B23C2200/0416 , B23C2200/0422 , Y10T407/19 , Y10T407/1908 , Y10T407/1922
摘要： The face milling cutter of this invention has indexable inserts with double-positive rake. Square inserts for a substantially 0.degree. lead angle are insertable in the body interchangeably with different octagonal inserts that respectively provide for 15.degree., 30.degree. and 45.degree. lead every insert engages a radially outwardly facing relief surface on angles. One relief surface on the body that extends parallel to the cutter axis, and another engages an axially forwardly facing surface on a rear body member. The large area leading surface on each insert flatwise engages a circumferentially facing surface on the body that establishes the rake angles. Every insert has an operative cutting edge that is spaced radially outwardly from the body and has another and longer edge that is spaced axially fowardly from the front surface of the body and serves as a wiper land.
摘要翻译：本发明的面铣刀具有具有双正耙的可转位刀片。基本上为0°导程角的方形刀片可互换插入到不同的八角形刀片中，分别提供15°，30°和45°，每个插入件以角度与径向向外的浮雕表面接合。身体上的平行于切割器轴线延伸的一个浮雕表面，另一个接合在后身体部件上的轴向向前表面。每个插入件上的大面积引导表面平坦地接合建立前角的身体上的面向周向的表面。每个插入件具有与主体径向向外间隔开的可操作的切割刃，并且具有另一和较长的边缘，其与主体的前表面轴向间隔开并且用作擦拭器接合面。

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