A square inner hole is formed in one end of the clamping sleeve. The wall of the inner hole is provided with a threaded hole and a stud which are used for inserting, connecting and fixing a screw tap. External threads are arranged at the other end of the clamping sleeve and are fixed...
Stud driving and hole tapping machine United States Patent 2799871 Application Number: US48659055A Publication Date: 07/23/1957 Filing Date: 02/07/1955 Export Citation: Click for automatic bibliography generation Assignee: STUD DRIVE INC Primary Class: 408/10 ...
inserting the self-tapping insert of claim 2 into the pilot hole;attaching a driving head to the self-tapping insert; andapplying counter-clockwise rotation to the self-tapping threaded insert by rotating the driving head, thereby driving the insert into the pilot hole until the insert is fully...
then inserting the threaded rod through the hole and double nuting the end of the threaded rod. Alternative methods are the use of powder activated stud pins with couplings. Beam clamps that attach to the top or lower flange of a steel beam can also be used. These approaches can be both...
inserting the hex head into a socket which is affixed to the chuck of an electric drill. When the drill is energized, the self-tapping screw drills into or through the ceiling surface. Now, when the article is pulled free from the drill-mounted wrench socket, a threaded rod may be ...
to planes for receiving threaded stud ends 102 therethrough in substantially perpendicular relation therewith. The clamping plate suitably has a substantially constant thickness. This is not taken to mean absolutely constant or of unvarying thickness, but is intended to exclude a plate including a conv...
A device (10) is provided that is operative for purposes of accomplishing the drilling, boring and tapping of a relatively large size opening (106) in a body (17) while the latter is located in a hostile environment. The subject device (10) is characterized both in that it is portable ...