公开(公告)号：US5145018A

公开(公告)日：1992-09-08

申请号：US739884

申请日：1991-08-02

申请人： Thomas O. Schimke ,  Wilfred M. McCord, Jr.

发明人： Thomas O. Schimke ,  Wilfred M. McCord, Jr.

IPC分类号： B27G15/00

CPC分类号： B27G15/00 ,  Y10T408/9065 ,  Y10T408/9093

摘要： A drill bit for drilling holes around the corner of a workpiece is provided with a single rounded continuous cutting edge with radiused upper and lower corners to permit free rotation of the cutting head as it is urged along an arcuate path. The bit is of a unique two piece construction permitting selective materials to be utilized in the shank an cutting head portions.

摘要翻译： 用于在工件拐角附近钻孔的钻头设置有具有圆角连续切割刃的圆形连续切削刃，其具有圆角的上角和下角，以允许切割头在弓形路径被推动时自由旋转。 该钻头是独特的两件式结构，允许在刀柄中使用切割头部分的选择性材料。

公开(公告)号：US5099933A

公开(公告)日：1992-03-31

申请号：US406764

申请日：1989-09-13

申请人： Thomas O. Schimke ,  Wilfred M. McCord, Jr.

发明人： Thomas O. Schimke ,  Wilfred M. McCord, Jr.

IPC分类号： B27G15/00

CPC分类号： B27G15/00 ,  Y10T408/42 ,  Y10T408/9042

摘要： A drill bit for drilling holes around the corner of a workpiece is provided with a single rounded continuous cutting edge with radiused upper and lower corners to permit free rotation of the cutting head as it is urged along an arcuate path. The bit is of a unique two piece construction permitting selective materials to be utilized in the shank an cutting head portions.

公开(公告)号：USD350985S

公开(公告)日：1994-09-27

申请号：US9699

申请日：1993-06-17

申请人： Thomas O. Schimke

设计人： Thomas O. Schimke

公开(公告)号：US5433561A

公开(公告)日：1995-07-18

申请号：US195578

申请日：1994-02-14

申请人： Thomas O. Schimke

发明人： Thomas O. Schimke

IPC分类号： B27G15/00 ,  B23B51/02

CPC分类号： B27G15/00 ,  Y10T408/899 ,  Y10T408/901 ,  Y10T408/9065

摘要： The present invention comprises a wood bit for use in wood working applications. The blade of the bit is generally spade shaped having cutting spurs on each corner of the blade, a central point projecting from the leading end of the blade, and hooked cutting edges.A progressive transfer die is used to bend the leading end of the blade and forge a continuous hook angle extending along the side cutting spur, the lateral shoulder, and the central point of the blade. The forging of a hook extending from each side of the blade converging at a central point provides a hook along the leading end of the blade projecting outwardly (in the direction of rotation) past the plane of the blade face. The leading end of the hook is beveled forming a continuous cutting edge extending along the hook from the outer side wall of the blade through the outside cutting spurs, along the lateral shoulders, and along each side of the central point.

摘要翻译： 本发明包括用于木工应用的木头。 钻头的刀片通常是铲形的，其在刀片的每个角上具有切割突起，从刀片的前端突出的中心点和钩形切削刃。 使用渐进式转移模头来弯曲刀片的前端并锻造沿着刀片的侧切割支柱，侧肩和中心点延伸的连续钩角。 从叶片的每侧延伸的钩的锻造在中心点处会聚，沿着叶片的前端提供沿着叶片面的平面向外（沿旋转方向）突出的钩。 钩的前端是斜面的，形成连续的切削刃，该切削刃沿着刀片的外侧壁穿过外侧切割刀片，沿着外侧肩部以及沿着中心点的每一侧沿钩延伸。

公开(公告)号：US5630478A

公开(公告)日：1997-05-20

申请号：US545272

申请日：1995-10-19

申请人： Thomas O. Schimke

发明人： Thomas O. Schimke

IPC分类号： E21B10/44 ,  E21B10/58

CPC分类号： E21B10/445 ,  E21B10/58

摘要： A masonry drill and method of manufacture is disclosed. The drill has an elongated axial body with at least one discharge groove and a transverse slot located at one end with a hardened drill bit insert brazed within the slot. The hardened insert has projections extending outward from flat planar surfaces which hold the insert in proper orientation within the axial drill body so that it may be brazed into place subsequent to insertion into the drill body.

摘要翻译： 公开了一种石工钻机及其制造方法。 钻头具有细长的轴向体，其具有至少一个排出槽和位于一端的横向槽，其中硬化的钻头刀片钎焊在槽内。 硬化的插入件具有从平坦的平坦表面向外延伸的突起，该平坦的平坦表面将插入件保持在轴向钻孔主体内的正确定向中，使得其可以在插入钻头主体之后被钎焊到位。

公开(公告)号：US5286143A

公开(公告)日：1994-02-15

申请号：US883522

申请日：1992-05-20

申请人： Thomas O. Schimke

发明人： Thomas O. Schimke

IPC分类号： B27G15/00 ,  B23B51/02

CPC分类号： B27G15/00 ,  Y10T408/899 ,  Y10T408/901 ,  Y10T408/9065

摘要： The present invention comprises a wood bit for use in wood working applications. The blade of the bit is generally spade shaped having cutting spurs on each corner of the blade, a central point projecting from the leading end of the blade, and hooked cutting edges.A progressive transfer die is used to bend the leading end of the blade and forge a continuous hook angle extending along the side cutting spur, the lateral shoulder, and the central point of the blade. The forging of a hook extending from each side of the blade converging at a central point provides a hook along the leading end of the blade projecting outwardly (in the direction of rotation) pass the plane of the blade face. The leading end of the hook is beveled forming a continuous cutting edge extending along the hook from the outer side wall of the blade through the outside cutting spurs, along the lateral shoulders, and along each side of the central point.

摘要翻译： 本发明包括用于木工应用的木头。 钻头的刀片通常是铲形的，其在刀片的每个角上具有切割突起，从刀片的前端突出的中心点和钩形切削刃。 使用渐进式转移模头来弯曲刀片的前端并锻造沿着刀片的侧切割支柱，侧肩和中心点延伸的连续钩角。 从叶片的每侧延伸的钩的锻造会聚在中心点处，沿刀片的前端向外突出（沿旋转方向）穿过刀片面的平面。 钩的前端是斜面的，形成连续的切削刃，该切削刃沿着刀片的外侧壁穿过外侧切割刀片，沿着外侧肩部以及沿着中心点的每一侧沿钩延伸。

公开(公告)号：US5193951A

公开(公告)日：1993-03-16

申请号：US702275

申请日：1991-05-17

申请人： Thomas O. Schimke

发明人： Thomas O. Schimke

IPC分类号： B27G15/00

CPC分类号： B27G15/00 ,  Y10T408/902 ,  Y10T408/9065 ,  Y10T408/90993

摘要： A drill bit includes an elongated shaft with a threaded male end and a cutting head with an axial through-bore having female threads to receive the male end of said shaft in threaded engagement, and there is a bearing surface area between the shaft and the cutting head above the threaded portion which provides for proper alignment and reduced stresses.

摘要翻译： 钻头包括具有螺纹阳端的细长轴和具有轴向通孔的切割头，所述轴向通孔具有内螺纹，用于接收所述轴的阳端螺纹接合，并且在轴与切削之间存在轴承表面区域 头部在螺纹部分上方，提供适当的对准和减小的应力。