公开(公告)号：US4545707A

公开(公告)日：1985-10-08

申请号：US454876

申请日：1982-12-30

Applicant: Earl C. Bradley, Jr. ,  John vander Linden

Inventor： Earl C. Bradley, Jr. ,  John vander Linden

IPC: B23B41/08 ,  B23B45/06

CPC classification number: B23B45/06 ,  Y10T408/55 ,  Y10T408/5605 ,  Y10T408/5647 ,  Y10T408/6786 ,  Y10T408/6793

Abstract: A set screw pocket drilling device for drilling blind holes in a pipe surface at a pipe joint for set screws holding the joint together including an externally threaded sleeve sized to fit the set screw hole and engage the surface of a pipe within a retainer in which the set screw hole is drilled, a drill fitting through and rotatable relative to the sleeve, and apparatus for rotating the drill relative to the sleeve. One embodiment of the device includes only a sleeve and a drill fitting through the sleeve having an outward end extending from the outward end of the sleeve for engagement of a wrench to rotate the drill and the sleeve. Another form of the device has a sleeve provided with a head having locking lugs, a drill extendable through the sleeve and having a head provided with a locking flange, and a clamping bracket for securing the sleeve head with the drill head at a position at which the cutting end of the drill is extended beyond the sleeve end so that a set screw pocket is drilled as the sleeve is screwed into a set screw hole of a pipe joint retainer. A third form of the device includes an externally threaded sleeve having a rotatable head and a drill provided with a cam coacting with the head to advance the drill as the head and cam are turned by means of a cam handle.

Abstract translation: 一种用于在管接头处的管表面中的盲孔钻孔的定位螺纹孔钻孔装置，用于将接头固定在一起，用于将接头固定在一起，包括外螺纹套筒，其尺寸适于安装固定螺钉孔，并将管道的表面接合在保持器内， 钻出定位螺钉孔，相对于套筒穿过并可旋转的钻具，以及用于使钻头相对于套筒转动的装置。 该装置的一个实施例仅包括套筒和穿过套筒的钻具，其具有从套筒的外端延伸的外端，用于扳手以使钻头和套筒旋转。 该装置的另一种形式具有套筒，该套筒具有一个具有锁定凸耳的头部，一个可穿过该套筒延伸的钻头，以及一个具有锁定凸缘的头部，以及用于将套筒头部与钻头头固定在一个位置处的夹紧支架 钻头的切割端延伸超过套筒端，使得当套筒拧入管接头保持器的固定螺钉孔中时，钻出定位螺纹槽。 装置的第三形式包括具有可旋转头部的外螺纹套筒和设置有与头部共同作用的凸轮的钻头，以在头部和凸轮通过凸轮手柄转动时推进钻头。